Providers
1Claw
HSM-backed secrets, signing, memory, and automations for LangChain agents.
AACP
Typed, validated coordination packets for LangChain multi-agent workflows.
ACGSMiddleware
Checks each agent tool call against ACGS constitution rules before it runs: blocked calls are denied, review rules pause the agent with an interrupt.
Abso
Custom AI integration platform for enterprise workflows.
Ace Data Cloud
Chat Completions model integration using Ace Data Cloud application credentials and endpoint defaults.
Adeu
Local, offline-capable Microsoft Word (.docx) redlining and parsing tools for LLM agents.
Actian VectorAI DB
Portable, high-performance vector database for embedded, edge, and cloud AI applications.
Aidress
Discovery and trust registry tools for verifying counterpart AI agents before they transact.
AI Stupid Level
OpenAI-compatible router that sends each request to the model scoring best for the task on AI Stupid Level’s benchmarks, using your own provider keys.
Alephant AI
AI gateway for cost control, BYOK routing, and multi-provider model access.
AlexEvidenceVerifier
Verify signed ALEX Evidence Packages in LangChain and LangGraph workflows against an external trust anchor, failing closed on errors.
Algenta
Governed tool execution for LangChain agents: exposes a self-hosted Algenta decision engine as BaseTools with policy-gated execution.
AlphaAI
AI-scored financial news and SEC Form 4 insider events for agents and RAG.
Ads4GPTs
Advertising platform for GPT applications and AI services.
Aerospike
Real-time, distributed NoSQL database built for speed and scale.
AG-UI Protocol
Open event-based protocol for connecting LangGraph agents to any frontend.
Agent Action Capsule
Signed, independently verifiable action records for agent tool calls, chained planned to confirmed.
Agent Pulse
Agent Pulse prices model, tool, and failed calls in LangChain and LangGraph runs per user, request, and agent, and budgets can stop calls before they are sent.
agentstate
DynamoDB, Cosmos DB and Firestore checkpointers with bounded history and a long-term memory hook, plus semantic-search stores.
agentsvc
Pay-per-call web, data, crypto, memory, and inbox tools for agents, paid with a credit token or USDC via x402.
Agentic SpendGuard
Runtime budget gate that blocks LLM calls that would exceed spend limits.
AgenticEmail
API-first email infrastructure for AI agents with optional end-to-end encryption.
AgentGate
Gate LangChain tools behind human approval in Slack or Microsoft Teams.
AgentLair
Persistent agent identity with email, encrypted vault, and audit trail.
AgentLine
Real phone numbers for AI agents: outbound calls, inbound SMS, webhooks, and provisioning.
AgentMail
Inbox-as-an-API platform for AI agents — sending, replying, drafts, attachments, and inbound webhooks.
AgentOps Cockpit
Governance and observability for LangChain and LangGraph agents.
AgentPhone
Telephony platform for AI agents with messaging, voice calls, and phone number management.
AgentQL
Web scraping with natural language queries.
AgentRAM
Hosted long-term memory tools and BaseStore for LangChain and LangGraph agents.
AgentSearch
Live web search for agents, free by default with no API key, plus pay-per-call Extract and Render for full pages and JS sites.
AgentGuardTool
Tool that checks an agent’s completion claim against named files, JSON files, and URLs.
AgentSeal
Tamper-evident logging and audit trails for LangChain LLM, tool, and chain events.
AgentSystems
Governance infrastructure for AI systems.
Agent Traffic Lab
Automatic task-time routing to executable MCP and provider capabilities, with failure redecision and outcome reporting.
AI Identity
Per-agent identity, scoped API access, and tamper-evident audit logging for LangChain agents.
AI21
AI21 Labs’ Jurassic models for text generation.
AI/ML API
Unified API for multiple AI and ML services.
Airbyte
Data integration platform for ETL and ELT pipelines.
Alchemyst AI
Context cloud retriever for LangChain.js agents.
Alibaba Cloud
Alibaba’s cloud computing and AI services.
AMUVectorStore
PostgreSQL + pgvector store where row-level security gates retrieval on a cached result’s derivation lineage, not only content tags.
Ampersend
Payment infrastructure for AI agent services via x402 protocol.
Anchor Browser
Browser automation and web scraping tools.
Anakin
Convert websites into clean, structured data at scale with AI-powered search and research.
ANEForge
LangChain embeddings on the Apple Neural Engine via ANEForge.
AntiBrow
Browser tools backed by persistent local browser profiles, keeping cookies, storage, fingerprint and exit IP stable across agent runs.
Anthropic
Claude models for advanced reasoning and conversation.
any-llm
Unified interface for OpenAI, Anthropic, Google, and local models.
AnyAPI
Search a catalog of data and scraping APIs, read an API schema and its USD price, then run it.
AnyToMarkdownLoader
Loads PDF, Word, Excel, PowerPoint, e-mail, and web pages as Markdown through the AnyToMarkdown API, with OCR for scanned files.
Apertis
OpenAI-compatible API providing access to multiple LLMs.
API-Route
OpenAI-compatible API gateway for models from multiple providers.
Apify
Web scraping and automation platform.
Apple Foundation Models
On-device Apple Intelligence chat model with no API key or network call.
AproxPay
Residential proxy for agents with native x402 payments (USDC on Base).
ArcadeDB
Multi-model database (graph, document, key-value, time-series, vector) with Cypher, SQL, and Gremlin support.
Arcmira
YouTube transcript search and entity resolution tools with timestamped evidence, speaker filters, and sponsored or organic passage classifications.
ARO
Export and verify portable execution integrity artifacts for LangChain runs.
arXiv
Open-access archive for scholarly articles.
assistant-ui
React framework for building AI chat interfaces with streaming support and LangGraph integration.
AstraDB
DataStax Astra DB vector database platform.
ATR Guardrail
Runtime detection of prompt injection, tool poisoning, and unsafe tool calls using Agent Threat Rules.
Asqav
AI agent governance with audit trails, policy enforcement, and compliance.
Asyntai
Tools for a hosted website chat agent: query indexed pages and product feeds, update the knowledge base, and read leads and chats.
Atomic Mail
Email toolkit that provisions an agent-owned inbox by proof of work and sends and receives over JMAP.
Attenu Guard
Per-agent tool-call and subagent permission enforcement with a hash-chained audit log.
Ausca
Pay-per-call LangChain tools over x402 for OCR, analysis, transcription, browsers, and agent inboxes.
Auxen
Dedicated per-customer LLM endpoints with an OpenAI-compatible API.
AWS
Amazon Web Services cloud platform and AI services.
Axiora
Japanese listed-company financials from EDINET filings for LangChain agents.
AxioRank
Security gateway for AI agents: govern tool calls and model turns with allow, deny, and redact policies.
Azure AI
Microsoft Azure AI and cognitive services.
Baidu
Baidu’s AI services and language models.
Baponi
Self-hostable or managed sandboxes for running AI-generated code.
Baseten
ML model deployment and serving platform.
Bastion Prompt Protection
Local prompt-injection and jailbreak detection for LLM apps and agents.
Bidda
Source-verified regulatory and compliance intelligence for LangChain agents.
Blopus
Web search and fetch API backed by its own crawler and index.
Blindfold
PII detection and protection for AI applications, including chain and RAG pipelines.
Bodo DataFrames
High-performance analytics and data processing.
BotsRatedPreflightTool
Tools that check an x402 seller against BotsRated’s latest unpaid probe before an agent pays, plus an optional paid check capped by a budget.
BowmarkToolkit
Tools for live websites: read Bowmark’s typed function library for a task or site, or run a short script for structured data.
Box
Cloud content management and collaboration.
Brainiall
LLM gateway with LangChain chat model and embeddings integrations.
Brightdata
Web data platform and proxy services.
Browser Use
Browser agents and cloud browsers for AI applications.
Browserbase
Headless browser automation platform.
CAMB AI
Multilingual audio and localization services supporting 140+ languages.
Capsule
Run Python and JavaScript code in isolated WebAssembly sandboxes.
Capslane
Loads timestamped video transcript passages into LangChain Documents with playback citations and optional asynchronous transcription.
CareJobsToolkit
Open US healthcare jobs, posted pay and employers from CareJobs.Now, a free job board, with no API key.
Cerebras
AI compute platform with specialized processors.
Ceki
Marketplace of real residential Chrome sessions for AI agents.
Cheaper Inference
OpenAI-compatible LLM gateway that serves models from many labs below list price.
ChatRouter
A chat model that sends each request to one of several LangChain chat models, chosen by a routing strategy defined in application code.
Chroma
Open-source embedding database for AI apps.
ChronoVec
Versioned vector store with snapshot queries and branch/merge speculative memory for LangChain agents.
Clearsigned
Verifies a factual claim against live web evidence and returns a stance, confidence, and an offline-verifiable signed receipt.
cloro
The scraper for SEO and AI SEO.
CopilotKit
React framework with prebuilt UI components for AI copilots.
CTRLRun
Execution-safety middleware that checks each tool call against a policy, holds consequential ones for a human, and leaves a receipt.
Cloudflare
Web infrastructure and security services.
chDB
In-process OLAP SQL engine powered by ClickHouse, with a LangChain vector store.
Coalent
Provenance-invalidated semantic cache above any vector store, serving attributed claim payloads.
CockroachDB
Distributed SQL database with native vector support and C-SPANN indexes.
Cognee
Memory layer for AI applications and agents.
CommentScraperLoader
Loads local JSON exports of Reddit and Hacker News threads made with the Comment Scraper browser extension, one Document per comment.
comply54
Runtime compliance enforcement for AI agents under African data protection and financial-sector regulations.
Cohere
Language AI platform for enterprise applications.
Confident AI
Confident AI is an LLM observability platform.
confident-trace traces LangChain runs through the callback system and exports them over OpenTelemetry.Context
Context management for AI applications.
Contextual
Contextual AI and language understanding.
Context.dev
Live web search, scraping, extraction, document parsing, and brand intelligence tools for agents.
ContextFetchSearch
Web search API that returns result pages as Markdown; the package provides a search tool (ContextFetchSearch) and a retriever (ContextFetchRetriever).
CtxpruneDocumentCompressor
Context compression model that removes low-value tokens from retrieved documents and tool outputs while keeping identifiers intact.
CopilotKit
React stack and Python middleware for Deep Agents, LangGraph agents, FastAPI, and generative UI.
Cosmergon
Physics-based 3D agent-economy simulation for benchmarks and training.
Couchbase
NoSQL cloud database platform.
CrateDB
Distributed SQL database for machine data.
CRW
Open-source Firecrawl-compatible web scraper for LLM-ready markdown, HTML, or JSON.
CVFile
Open .cv PDF/A-3u format with embedded Markdown, HTML, and JSON Resume payloads.
Crawleo
Privacy-first web search and crawling tools for LangChain agents.
CrustAPI
Google and public LinkedIn data as structured JSON for search and agents.
CyborgVectorStore
Vector store for CyborgDB, an encrypted vector database with metadata filtering and hybrid (BM25) search.
DaoXE
Multi-model multi-protocol API gateway with OpenAI-compatible base URL support.
Dappier
Real-time AI data platform and API.
Decodo
Web scraping and Google search tools plus a document loader, backed by the Decodo Web Data API.
DDG Agent Services
Pay-per-call x402 APIs for agents (web search, price feeds, site audits) settled in USDC on Base, wrapped as LangChain tools.
Databricks
Unified analytics platform for big data and ML.
Datadog
Monitoring and analytics platform for applications.
Daytona
Secure and elastic infrastructure for running your AI-generated code.
Deep Agents Graph Memory
Graph context middleware and tools for Deep Agents that record and recall workflow findings using embedded LadybugDB.
DeepKeep
AI Firewall pre-moderation and post-moderation for LangChain agents.
DeepLake
Vector database for deep learning applications.
DeepSeek
Advanced reasoning and coding AI models.
Delegare
Agent payment authorization infrastructure with AP2 mandates and x402 handling.
Dewey
Real-time document backend with retriever, vector store, and research tool.
Dell
Dell Technologies AI and computing solutions.
DexPaprika
Keyless DEX market-data API from CoinPaprika: token search, market data, pool discovery, and OHLCV price history.
Diffbot
Structured web knowledge for developers and LLM applications.
DNS Doctor
Deterministic DNS and email-authentication checks: SPF, DMARC, DKIM, propagation, and blacklist.
DomPruner
DOM AST pruning that loads web pages as compact Markdown with no API key.
Docling
Document processing and AI integration.
DoclingLoader
Document loader backed by docling.rs that converts PDFs, Office files, HTML, EPUB, e-mail, scans, and more into LangChain Documents.
Docugami
Document AI and semantic processing.
Doubleword
OpenAI-compatible inference platform with first-class batch-inference support.
Discord Shikenso
Discord analytics and moderation tools.
Distil
Reversible, certified context compression middleware for LangChain and LangGraph.
DProvenanceKit
Reasoning observability and regression testing for agent runs.
Duel Agents
Multi-model routing that bills the cheapest winning answer behind an OpenAI-compatible proxy.
DynamicToolSelectorMiddleware
Agent middleware for sub-100ms hybrid dense and sparse vector tool retrieval over zvec, cutting prompt token overhead from tool lists.
E2B
Cloud sandboxes for running AI-generated code.
EconDashToolkit
EconDash tools provide time series data for macroeconomics, markets, labor, demographics, real estate, energy, and other domains.
Emaki
Text-to-video, image-to-video and image generation tools for the emaki API (Seedance 2.5 and Seedance 2.0); requires an emaki API key.
Egnyte
Cloud content collaboration and AI-powered search platform.
Elasticsearch
Distributed search and analytics engine.
EmpirioLabs AI
Specialized AI model hosting for open, proprietary, and custom stacks through one OpenAI-compatible API, plus GPU Cloud and hosted agents.
EnConvert
Document loader that turns URLs or whole sites into Documents with a render_quality score on every read.
Engram
Cognitive memory infrastructure for AI agents: confidence scoring, contradiction detection, and memory lifecycle.
ERC20
ERC20 token balances, allowances, transfers, approvals, and native wrap/unwrap, as execution plans an EOA can sign or a smart contract wallet can batch.
ERC-8004
Verify an ERC-8004 agent’s on-chain identity and reputation feedback, and prepare registry writes as execution plans.
Exa Search
AI-powered search engine for developers.
FinancialEvidenceToolkit
Read-only tools for source-cited public funding, covered-bank and market-liquidity research from Seiche, LiquiLens and Undertow.
Firecrawl
Turns websites into clean, LLM-ready data for scraping, crawling, and search.
Firebolt
Cloud data warehouse with native vector search for similarity and RAG.
FalkorDB
Graph database with ultra-low latency.
Featherless AI
Fast and efficient AI model serving.
FeedMyAgent
Technology intelligence feed for AI agents: security advisories, tech-stack changes, and compliance deadlines, classified hourly.
FiGuard
Pre-flight spend authorization for LangChain agents.
Fizzl
Safety checks for agents that pay: review transactions, tokens, wallet approvals, and paid APIs before signing or buying.
FlashDataToolkit
Google Search and YouTube search, video metadata, and transcript tools backed by the FlashData API.
FlatmarkLoader
Document to Markdown API and MCP server for PDF, Word, PowerPoint, Excel and HTML. OCR queue for large files. Hosted in Germany.
FlexAI
FlexAI serves open-weight models behind an OpenAI-compatible API.
FMP Data
Financial market data and analytics API.
FoddaContextRetriever
Custom tool integration to retrieve verified knowledge graphs, market intelligence, and expert dossiers from the Fodda Context Layer.
Foliant
Payment tool and budget middleware for agents paying x402 endpoints through Foliant channels, with per-agent spending budgets.
Football Charts
Football statistics, model probabilities, and Monte Carlo season projections for 90+ leagues.
FoxNose
Retriever, document loader and agent tool for FoxNose collections, with text, vector, hybrid and vector-boosted search over the Flux delivery API.
GAIP
Free LangChain tools to check whether an agent, MCP server, or API works, explain failures, follow changes, and verify cited quotes.
Galaxia
Prompt-driven engineering assistant.
Gandr
Text to speech API: 23 languages, six voices, every render watermarked.
GateCore
Governed marketplace tools for discovery, procurement, and signed gateway execution.
Gel
Knowledge extraction and NLP platform.
Geekflare
Web search with Google SERP results, page scraping, screenshots, URL-to-PDF, brand data, and website diagnostics via the Geekflare API.
GetYouTubeTranscript
GetYouTubeTranscript is an API for YouTube video transcripts (optionally with per-line timestamps) and YouTube search
GNewsTopHeadlines
GNews top headlines tool for current top news articles by category, country, and language from 80,000+ sources.
GoodMem
Long-term memory layer for AI agents with semantic storage and retrieval.
GoodSender
Free email API with transactional templates and consent-gated custom email.
Google’s AI services and cloud platform.
GoAT
Records candidate plans, scores, and rejection reasons as a LangGraph agent plans, then explains the decision in plain language.
GPT Image by Ace Data Cloud
Image generation submission and same-ID task retrieval tools provided by Ace Data Cloud for GPT Image.
GPTZZZ
OpenAI-compatible API gateway for models from multiple providers, with Chinese-language docs.
DigitalOcean Gradient AI Platform
Single endpoint to multiple LLMs via serverless inference.
Graceful Fail
Self-healing API proxy that returns structured fix instructions when API calls fail.
GraciousQuotes
Fact-checked quote attributions: a verdict on who said a quote, the source it was traced to, and MLA, APA or Chicago citations.
Graph RAG
Graph-based retrieval augmented generation.
GraphSignal
AI observability and monitoring platform.
GreenCalculus
Greenhouse-gas emission factors from public publishers (DEFRA, US EPA, ADEME, IPCC), with exact source cell, licence, and data version.
GreenNode
Sustainable AI computing platform.
GridGain
GridGain persistence for LangGraph: a checkpointer for short-term thread state, a store for long-term cross-thread memory, and a node cache for compiled graphs.
Fireworks
Fast inference for open and proprietary language models.
FlipCoin
Prediction markets platform on Base: trade YES/NO outcome shares.
FoundryNet
On-chain work attestation for AI agents via MINT Protocol.
FuturMix
Unified AI gateway for 22+ models with OpenAI-compatible API.
Groq
Ultra-fast inference with specialized hardware.
Hacker News
Search stories, front page, and comment-thread retrievers for Hacker News.
Haldir
Governance layer for AI agents with scoped sessions, encrypted secrets, hash-chained audit, and policy enforcement.
HappyHorse by Ace Data Cloud
Video generation submission and same-ID task retrieval tools provided by Ace Data Cloud for HappyHorse.
Hashlock
Cross-chain asset exchange toolkit with sealed-bid intents for crypto, RWAs, and stablecoins.
HWP/HWPX
Load Korean Hangul Word Processor HWP and HWPX documents into LangChain.
Hlido
Independent, evidence-backed trust scores for AI agents.
Helicone
LLM observability and monitoring platform.
Highflame
Runtime AI security guardrails for LangChain and LangGraph middleware.
HighSNR
Deterministic, privacy-first context optimizer for compressing documents and retrieved chunks to a token budget.
Hindsight
Open-source long-term memory engine for AI agents.
HippoDid
Persistent, structured character memory for AI agents.
HirePulse
StructuredTools for public hiring signals, website technologies, jobs, Google Ads transparency, profiles, and bulk lookup quotes.
Hubris
Ruble-billed OpenAI-compatible LLM gateway with 400+ models.
HuangtingFlux
Remote MCP server that reduces agent token usage via a three-stage SOP workflow.
Hugging Face
Open platform for ML models and datasets.
Hydrafetch
Web data API tools, loader, and search retriever for clean LLM-ready Markdown and structured data.
HyperBrowser
Web automation and scraping platform.
IBM
IBM Watson AI and enterprise solutions.
ICTContact
Start, stop, and monitor outbound contact-center campaigns on ICTContact or ICTDialer.
ICTExam
AI exam authoring and auto-grading: parse question papers, publish exams, and read gradebooks.
ICTFax
LangChain tools to send and track faxes through an ICTFax or ICTCore server.
ICTPBX
Query ICTPBX extensions, DIDs, SIP trunks, tenants, and PBX statistics.
iLoveVideoEditor
Cloud video rendering platform: render MP4 videos from VideoJSON specs.
iGPT
Personal data retrieval tools and retriever for emails, messages, and files.
Inferrail
Self-hosted OpenAI-compatible gateway that enforces a dollar budget per agent run, refusing over-budget calls with HTTP 402.
Infinispan
Vector store backed by Infinispan, an in-memory distributed key/value data store, providing similarity search over embeddings with metadata filtering.
Infino
Vector, BM25, and hybrid retrieval over one engine on object storage.
Interfaze
Multimodal chat model with structured output over an OpenAI-compatible API.
Inspeximus
Bi-temporal ledger memory with LangGraph checkpointer and store integrations.
Instanode
Zero-setup Postgres and webhook provisioning for AI agents.
Interven
AI agent firewall — policy enforcement, PII redaction, human approval, and audit logs for tool calls.
Isaacus
Legal AI models, apps, and data.
ISNAD
Claim-level provenance and trust grading middleware for LangChain agents.
Islo
Long-running Linux VM sandboxes with pause, resume, and snapshots.
Jenkins
Automation server and CI/CD platform.
John Snow Labs
Enterprise NLP and healthcare AI platform.
Kalibr
Outcome-aware execution routing for AI agents across models, tools, and parameters.
Kapa
LangChain tools for Kapa, a knowledge base that stays in sync and finds the right context for your agents.
Kavel
Text-to-image and image-editing tool for the Kavel image API; text-to-image runs on a free tier without an API key.
Keenable
Web search and page-fetch API built for AI agents, with a keyless free tier.
Keiro
Web search, embeddings, and retrieval for agents with structured, citable sources.
Kerq
Trust scoring and telemetry for AI tools and MCP servers.
Kinetica
Real-time analytics and database platform.
KoNLPy
Korean natural language processing toolkit.
KServe
Connect LangChain chat models to KServe inference services on Kubernetes.
Kubernetes
Kubernetes sandbox provider for deepagents.
Kuzu
Embedded graph database management system.
Kyvvu
Runtime AI governance: policy enforcement and tamper-evident audit trails for agents.
LambdaDB
Serverless database for RAG and Agents
LangChain Decorators
Syntactic sugar and utilities for LangChain.
langchain-arabic
Arabic text post-processing for LLM outputs — diacritics restoration, number-to-word conversion, and dialect support.
LangChain Replay
Record and replay LangChain agent decisions while tools execute against the real filesystem.
LangFair
Bias testing framework for language models.
LangFuse
LLM engineering platform and observability.
LatAm Synth
Privacy-safe synthetic financial data generation for Latin American fintech applications.
Layrcake
Tools to find B2B leads, find and verify work emails, check and research companies, and draft email campaigns that a person approves before sending.
Leap0
Cloud sandboxes for AI agents with fast cold starts.
LexMex
Spanish-language Mexican federal law Q&A with cited articles for LangChain agents.
LFG Alarm
Tools that set, list and delete alarms that ring on a phone, and ring a phone now, through LFG Alarm.
Lindorm
Alibaba Cloud’s multi-model database service.
LinkUp
Real-time job market data and search.
Lians
Bitemporal agent memory with point-in-time recall for LangChain and LangGraph.
LiteLLM
Unified interface for 100+ LLM APIs.
Lithtrix
Identity and portable memory API for AI agents: BaseStore adapter for LangGraph long-term memory.
Live Tennis API
Real-time tennis scores, players and fixtures for ATP, WTA, Challenger and ITF.
LLMSlimCompressor
MIT-licensed local document compressor for ContextualCompressionRetriever that keeps query-relevant content within a token budget.
LLMSlimToolOutputMiddleware
Shortens long tool results locally before the model first sees them, avoiding repeated identical bytes in later model calls.
Lizard
Lizard provides cloud sandboxes for running shell commands and file tools with LangChain Deep Agents.
Log10
LLM data management and observability.
LongProbe
Sub-second RAG retrieval regression testing and stability monitoring.
LoopGrid
Native LangChain AgentMiddleware for signed decision evidence, policy enforcement, human approval, and guarded tool execution through LoopGrid Core.
LocalAI
Self-hosted OpenAI-compatible API server.
Lyrenth
Independent web index that returns cleaned Markdown with canonical source URLs.
m3-memory
Local-first, MCP-native memory layer for LangChain and LangGraph.
Machine Library
A retriever and agent tools for citable search across scholarly papers, books, patents, standards and Wikipedia (plus Reddit, Telegram and Discord).
MadeOnSol
Solana memecoin intelligence tools: KOL feeds, coordination signals, deployer reputation, and alerts.
Magic Hour
AI text-to-video, image-to-video, and image generation tools behind one API key.
MariaDB
Open-source relational database management.
MaskFlow
Reversible PII anonymizer / deanonymizer for LangChain, a drop-in for the Presidio anonymizer. Indian identifiers included.
MartToolkit
Mart provides public LinkedIn profile and company enrichment, contact refresh snapshots, posts and optional work-email lookup through a JSON API.
Memgraph
Real-time graph database platform.
MemoryRouter
Persistent, user-scoped memory for LangChain and LangGraph agents with retain/recall tools, graph nodes, and a BaseStore.
Memstate AI
Structured, versioned long-term memory for AI agents.
Mengram
Long-term agent memory with semantic, episodic, and procedural types.
MeragptDecider
Typed decisions (yes/no, choice, score) with calibrated probabilities from meraGPT Decider 1, as a Runnable, a tool, and agent middleware.
MeshArc
MeshArc is a web crawling API that returns pages as clean markdown, maps sites, searches the web, and reports page changes between crawls.
Metal
Managed vector search and retrieval.
Microsoft
Microsoft Azure AI and enterprise services.
Milvus
Open-source vector database for AI applications.
MindsDB
AI layer for databases and data platforms.
MinerU
Open-source document parsing for PDFs and office files into Markdown.
MinnsDB
Agent memory tools and a LangGraph store for MinnsDB, a temporal graph database that records when each fact was true.
Mixpeek
Multimodal search, ingest, and vector store for video, image, audio, and documents.
mnki (Agent Trust)
Verifies each LangChain or LangGraph tool call against the agent’s delegated authority and records a signed evidence list per decision.
MLflow Tracking
Experiment tracking and model registry.
MistralAI
Efficient open-source language models.
Modal
Serverless cloud computing for data science.
ModelScope
Alibaba’s open-source model hub.
Modexia
Autonomous crypto payments, cross-chain transfers, and X402 paywall negotiation for agents.
MongoDB
Document-based NoSQL database platform.
MongoDB Atlas
Cloud-hosted MongoDB with vector search.
Moorcheh
Semantic search engine and vector store.
Motorhead
Long-term memory for AI conversations.
MrScraper
Web scraping APIs for rendered HTML, AI extraction, scraper reruns, and result management.
Nano Banana by Ace Data Cloud
Image generation submission and same-ID task retrieval tools provided by Ace Data Cloud for Nano Banana.
Naver
Naver’s AI services and language models.
Nebius
AI cloud platform and infrastructure.
Ned Watch
Callback handler that checks in when a LangGraph or LangChain run finishes so a signed webhook fires on missing or overrun runs.
Neo4j
Native graph database and analytics platform.
NewsCatcher
CatchAll web search for real-world business events as LangChain tools.
Nexus Shield
Sub-10ms in-RAM PII sanitization and security guardrail proxy for LLM APIs.
Nia
Search and index API for giving agents reliable context.
NetMind
Decentralized AI computing network.
NeuralTrust
TrustGuard middleware that allows, blocks, reports, or transforms agent input, model output, and tool traffic.
Neuralwatt
Energy-aware AI inference with per-call energy and carbon metrics.
Nimble
Web intelligence and data extraction.
NodeProxy
x402-gated web surface markdown parser for token-efficient LLM ingestion.
Nomic
Open-source embedding models and tools.
nono
Local OS-enforced sandboxing with Landlock and Seatbelt.
Notte
Managed remote browser sessions for AI agents.
Noveum
Captures LangChain and LangGraph runs, model calls, and tool activity for tracing and evaluation in Noveum.
Nuggets
Pre-execution authority enforcement for LangChain and LangGraph tool calls.
NVIDIA
NVIDIA’s AI computing platform and models.
Novita
Code interpreter sandboxes for running agent-generated code.
OceanBase
Distributed relational database system.
OCI
Oracle Cloud Infrastructure AI services.
Octen
Web search engine for AI agents with semantic search, domain filtering, and sub-100ms latency.
Ollama
Run Large Language Models (LLMs) locally.
OMEM
Belief-tracking BaseStore for LangGraph with superseding writes and provenance.
OpenMemory
Local-first persistent temporal memory retriever for LangChain agents.
OpenAI
GPT models and comprehensive AI platform.
OpenAlexSearch
Search and lookup tools over OpenAlex, a free index of scholarly works, authors, sources, and citations, plus a retriever.
OpenBox
Real-time governance for LangGraph and Deep Agents: policies, guardrails, HITL, and behavior rules.
OpenDataLoader PDF
Safe, Open, High-Performance — PDF for AI
OpenDMA
ECM toolkits, loaders, and retrievers for Alfresco, Documentum, FileNet, and OnBase.
OpenGradient
AI model training and fine-tuning platform.
OpenInference
OpenTelemetry instrumentation that records LangChain and LangGraph operations using OpenInference semantic conventions.
OpenpathSearch
Tool for Openpath, an open directory of job openings and Austin local businesses returned as Markdown with no API key.
OpenRouter
Unified API for models from multiple providers.
OpenSandbox
OpenSandbox backend for Deep Agents: run agent code and file operations in an isolated sandbox.
Opensolr
Managed Apache Solr with server-side embeddings and hybrid BM25 + kNN search.
Open Agent Spec
Framework-agnostic language for portable agent definitions.
OpenTTT
Cryptographic Proof-of-Time timestamps for LangChain LLM calls.
OpenZoo
Pay-per-call OpenAI-compatible chat models via a local x402 proxy.
Opsen
opsen runs agent sandboxes and proxies their model calls, so machine, model and tool spend land under one task id.
Oracle AI Database
Oracle’s AI and machine learning services.
OrcaCallbackHandler
Records which LangGraph node ran, in which superstep, and how it ended, into a trace that replays offline with the provider unreachable.
Opedd
Licensed, rights-cleared content for RAG and agents with verifiable license keys.
oxidize-pdf
Rust-powered PDF loader with element-disjoint RAG chunking.
Oxylabs
Web scraping and proxy services.
Parallel
AI-powered web search and content extraction for LLMs.
PaySafe
x402 payment firewall with provenance tagging for prompt-injection detection.
pdfmuse
Deterministic local PDF/DOCX parsing with page coordinates and section metadata for RAG.
Perigon
Real-time news and media monitoring.
Permit
Authorization and access control platform.
Perplexity
AI-powered search and reasoning engine.
Pexafy
Semantic search over free stock photos from Unsplash, Pexels, Pixabay, and more, returning each photo with license and credit.
Pidgeon Toolkit
Pidgeon Toolkit gives agents mail inbox tools to create addresses, read and search messages, wait for verification codes, send, reply, and hand off threads.
PIIGhost
Reversible PII anonymization middleware for LangChain agents.
PQS
Pre-inference prompt quality scoring via a LangChain callback handler.
PlainId
Authorization and access control platform.
Pinchwork
Agent-to-agent task marketplace for delegating and completing specialized work.
Pinecone
Managed vector database for ML applications.
PinkToolkit
PinkToolkit provides LangChain tools for Pink Agentic AI Payments so agents can request and track sandbox payments within spending rules.
Pipeshift
AI-powered content moderation platform.
Plasmate
Agent-native headless browser with Set of Mark (SOM) structured UI extraction.
Plivo
LangChain tools for sending SMS messages and placing voice calls through the Plivo communications APIs.
Play Store
Google Play Store app details and user reviews retrievers for LangChain.
PolarDB PG
PolarDB for PostgreSQL provides in-database embeddings, a LangChain vector store, and SQL-based registration and invocation of external AI models.
Polaris
Verified news intelligence tools and retriever for LangChain agents.
PolarisAIDataInsight
Document-loaders for various file formats.
Polign
Vector store for Polign, object-store-native vector database, with metadata filtering, MMR, and BM25 hybrid search.
POP
Portable persona loading, legacy migration, and boundary-aware tool filtering for LangChain agents.
PplStore
LangGraph BaseStore backed by the ppl personal CRM. Agent memories are stored as notes on contacts’ timelines; search uses ppl’s ranked retrieval.
pr402
Autonomous Solana USDC payments for HTTP 402 resources via the x402 protocol.
Portkey
AI gateway and observability platform.
Precleared
Checks whether a cold or marketing email to an address is legal in eight countries, and returns the deciding rule, footer requirements and a signed receipt.
PredictionGuard
AI model security and compliance platform.
PrintFriendly
PrintFriendly reads web pages through its API and returns clean Markdown, text, or HTML without ads or page clutter.
Pramagent
Deterministic tool policy and HITL gates for LangGraph tool calls.
Privy
Wallets and payments for AI agents.
Prolog
Logic programming language integration.
PromptfirewallGuard
Sub-millisecond PII detection and prompt injection firewall for LangChain. Zero network, zero GPU, pure Rust core via PyO3.
prompt-shield
Runtime prompt-injection firewall for inputs, tool results, and model outputs.
ProvaredMiddleware
ProvaredMiddleware checks LangChain tool calls against passkey-signed permissions and writes signed, hash-chained receipts.
Proxmint
Proxmint residential, datacenter and mobile proxies: a page-fetch tool and a document loader with country, city and ASN targeting and sticky sessions.
ProxyClaw
Residential proxy tool for web scraping with geo-targeted IPs.
ProxyHat
Residential proxy tool and document loader for reliable web fetching.
Pushary
Phone approvals for LangGraph and LangChain agents: ask on the user’s phone and resume on Approve or Deny; no answer means no action.
PyMuPDF4LLM
PDF processing optimized for LLM ingestion.
Qdrant
Vector similarity search engine.
QdrantStore
Qdrant’s
BaseStore implementation for LangGraph long-term memory.QuanticData
Web scraping, SERP search, crawling, and ready-made collectors through residential proxies.
Querit
Real-time web search API for AI applications.
Ray Serve
Scalable model serving framework.
RecallChatMessageHistory
Chat message history stored in a Recall session, so Recall also learns about the user from it.
RecallMiddleware
Long-term memory for create_agent agents: adds what Recall learned about the user to the system prompt and records each exchange.
RecallRetriever
Retrieves the facts Recall learned about a user, and the user’s matching messages, as documents.
RecallToolkit
Tools for agents to search Recall memory, ask it a question about the user, and save a fact.
Search posts, subreddit feeds, and comment-tree retrievers for Reddit.
Redis
In-memory data structure store and cache.
RelayShield
Identity and agentic-attack-surface threat intelligence.
Remembrall
AI memory and context management.
RE-call
Trust-evaluated retrieval from PostgreSQL with pgvector, verdict metadata, and explicit abstention.
Replicate
Cloud platform for running ML models.
ReplyLayer
Governed email platform for AI agents.
Reserp
Google Search results as a LangChain tool via a single API request.
Respan
Observability, tracing, evaluation, and gateway routing for LangChain applications.
Robocorp
Python automation and RPA platform.
Rostam
Self-hosted vector database and key-value store in a single Go binary.
RustChain
Read-only tools for querying public RustChain network data.
Runloop
Disposable devboxes for running code in isolated environments.
Runcycles
Pre-execution budget authority middleware for model calls, tool calls, and agent loops.
Runpod
GPU cloud platform for AI workloads.
Runtime
Firecracker microVM sandboxes for Deep Agents from Runtime.
Sail
Rust-based drop-in Spark replacement with Spark Connect and a Sail SQL toolkit for LangChain agents.
SafePrompt
Prompt-injection detection as a LangChain callback handler.
ScraperAPI
Web scraping API for AI agents and data collection.
Salesforce
CRM platform and business automation.
SambaNova
AI platform with specialized hardware.
SAP
Enterprise software and AI solutions.
Sarvam AI
Sovereign AI platform for Indian languages with chat, speech, and translation.
Scavio
Real-time search for AI agents across the web, commerce, video, social, jobs, and more, plus clean text extraction from any URL.
ScaleDown
ScaleDown adds Constrained Decoding Models to LangChain agents as middleware for summarization, classification, compression, and structured records.
SchemagateRetriever
Retriever that returns only SQL schema tables the calling principal may read, for Postgres, Oracle, MySQL, and SQL Server.
ScrapeGraph
AI-powered web scraping framework.
Scrapeless
Web scraping API and proxy service.
ScrapingBee
Web scraping and search API with headless browsers, proxies, and AI extraction.
ScoutWyze Compute
Ranks live GPU placement offers (8x H100 80GB, RunPod) by price and freshness; billed per successful match via a prepaid key or per-call via x402/USDC on Base.
SearchApi
Unified search API across Google, Bing, Baidu, YouTube, and more.
SeedanceToolkit
Seedance video generation submission and same-ID task retrieval tools provided by Ace Data Cloud.
seekrit
Zero-knowledge secrets manager. Scopes which credentials a model call or a given tool call may use.
Semantica
Three drop-in adapters that bring Semantica’s context graph and hybrid search into LangChain chains and LangGraph agents.
Send21Toolkit
send21 prepares non-custodial pay links priced in 161 fiat currencies; payers sign in their own wallets and API keys cannot move funds.
SereneDB
PostgreSQL-compatible vector database with native ANN and hybrid search.
SerpApi
Structured search tools for web, news, maps, images, shopping, video, and travel.
SerpKite
Google search tools returning Markdown or structured results, with a retriever and webpage document loader.
SERPdive
AI search API that returns extracted, answer-ready web content.
Serpex
Multi-engine web search API for AI applications and data aggregation.
Shale Protocol
Decentralized AI inference protocol.
ScyllaDB
High-performance distributed NoSQL database for real-time AI.
ShannonBase
MySQL 9 VECTOR store for ShannonBase, self-hosted MySQL, and MySQL HeatWave.
SibFly
Satellite-measured ground motion (subsidence/uplift) for any US address.
SidClaw
Tool-call governance with policy evaluation, human approval, and tamper-evident audit trails.
Signatrust
Cryptographically signed AI Decision Receipts for agent actions.
Signet
Ed25519-signed receipts for LangChain tool lifecycle events with a local hash-chained audit log.
Simplepages
MCP-backed tools to create, edit, and measure draft landing pages and sites.
SingleStore
Distributed database with vector capabilities.
SkillLite
Sandboxed skill execution for LangChain agents.
Skim
x402-native clean web reader for AI agents.
SnapRender
Capture website screenshots as PNG, JPEG, WebP, or PDF.
Snowflake
Cloud data platform and analytics.
Soniox
High-accuracy multilingual speech-to-text API.
Soul
Markdown-native chat message history with hybrid RAG and RLM retrieval.
Sourcey
Static documentation generator with retrieval-ready artefacts for LLM applications.
Spanlens
Open-source LLM observability with a LangChain and LangGraph callback handler.
SpiceDB
Authorization system for fine-grained permissions filtering in RAG applications.
Spidra
AI-powered web scraping platform with real browsers, CAPTCHA solving, and structured data extraction.
SRARiskGateMiddleware
Checks stablecoin payment tool calls before they run and holds or rejects those that break spend, recipient, or asset rules.
Stack Overflow
Search questions and retrieve answers from the Stack Exchange network.
Strale
Capability marketplace tools for business data, compliance, and document extraction.
Stardog
Enterprise knowledge graph platform.
SubmilliMiddleware
Code-mode middleware that runs agent-written TypeScript programs on submilli-server under a policy and can call the agent’s own tools.
Sulci Cache
Context-aware semantic LLM cache that blends conversation history into similarity lookup.
SunoToolkit
Suno music generation submission and same-ID task retrieval tools provided by Ace Data Cloud.
Supadata
Load transcripts and metadata from YouTube, TikTok, and more.
SupraWall
Deterministic security and compliance callbacks for LangChain agents.
SuperColony
Verifiable AI agent intelligence from a swarm of autonomous agents.
SuperLocalMemory
Local-first chat message history stored in SQLite with no cloud dependencies.
SuperPDFLoader
Loads local PDFs as Markdown, one Document per page, with table, chart, and OCR support.
Superserve
Persistent Firecracker microVM sandboxes for Deep Agents.
SurrealDB
Multi-model database for modern applications.
SwarmMemoToolkit
Public message board for AI agents to read rooms, post and reply, check updates, list open tasks, and store optional signed notes.
Synap
Persistent long-term memory layer for AI agents.
Synmerco
Trust infrastructure for autonomous agent transactions.
Synthorai
OpenAI-compatible LLM gateway routing to multiple model providers.
Tableau
Data visualization and business intelligence.
TableJourney
Tools for verified places to eat, food festivals with dates, and bookable food tours and stays in 224 cities, from TableJourney’s public MCP server.
Taiga
Project management platform for agile teams.
TalorData
Unified SERP API across 33 search engines with geo-targeting.
TanodToolkit
Pay-per-call tools (x402, USDC on Base) for contract scans, address risk, on-chain reads, and web or DNS utilities.
TanvoToolkit
Tanvo provides AI image, video, and music generation tools for agents.
Tavily
AI-optimized search API for applications.
TealTiger
Deterministic governance middleware for LangChain agents with policy enforcement and audit evidence.
TempGuru
W-2 event staffing for the US and Canada: coverage, rates, lead times, and compliance lookups.
Tendem
Price-capped human-in-the-loop tools that delegate agent work to vetted experts.
Tenuo
Task-scoped authorization for LangChain agents that limits tools, arguments, and time before execution, including delegated subsets.
TensorLake
Data infrastructure for ML applications.
Teradata
Autonomous AI platform with integrated vector search.
Tessera
Signed trust labels and taint-tracking that gate tool calls on untrusted context.
Telnyx
OpenAI-compatible AI inference APIs for chat models and embeddings.
Thalam
OpenAI-compatible gateway for chat models with streaming, tools, and structured output.
The Context Company
Observability and customer analytics for production AI agents.
ThorData
Search tool that queries Google, Bing, Yandex, and DuckDuckGo through the ThorData SERP API.
Tigris
Globally-distributed S3-compatible object storage with a forkable LangGraph checkpointer.
Tilores
Entity resolution and data matching.
Toolstem
Finance and SEC EDGAR tools with x402 micropayments for LangChain agents.
Tonic Textual
Detect, extract, and transform PII in text, JSON, HTML, and files.
Timbr
Semantic layer for data integration and querying.
Together
Fast inference for open-source models.
TokenMix
OpenAI-compatible API gateway for DeepSeek, Qwen, Kimi, GLM, MiniMax, and more.
TokPortal
Managed TikTok, Instagram, and YouTube accounts as LangChain tools and MCP.
Tokonomics
AI cost metering, budget alerts, and spending caps for LangChain LLM calls.
Toolbox LangChain
Extended toolkit for LangChain applications.
TopxAI
TopxAI is an API gateway that serves Claude, GPT, Grok, GLM, Kimi, and DeepSeek models through one OpenAI-compatible API.
Traccia
AI Agent Control Plane.
TracekitMiddleware
Asks a signer to allow, deny, or hold each tool call before it runs, and records a signed, offline-verifiable hash-chained log.
TrueFoundry
ML platform for model deployment.
TrueLens
Evaluation framework for LLM applications.
TrustedRouter
Privacy-preserving OpenAI-compatible LLM router.
Truth Bear
LangChain tools for Truth Bear GAUGE official-source signal data.
Tuning Engines
Governed OpenAI-compatible endpoint for model access, policy checks, and usage accounting.
TurnWindowMiddleware
LangChain agent middleware that keeps recent human-anchored conversation turns together with matching tool-call and tool-result messages.
TwittrAPI
TwittrAPI provides REST APIs and LangChain tools for read-only access to public X (Twitter) tweets, profiles, timelines, lists, communities, and trends.
TypeDB
Strongly-typed database for complex, relational data and knowledge graph applications.
TypeSafe
Jev classifier for agent decisions: model routing and tool-risk gating.
TypesenseVectorStore
Vector store integration for Typesense with vector and hybrid search, metadata filtering, scoring, MMR, and sync & async APIs.
UnDatasIO
Data extraction and processing platform.
UniRate
Currency exchange API with 593+ fiat, crypto, and commodity rates.
Uniswap
Live Uniswap V2 swap quotes and unsigned transactions for swaps, approvals, and liquidity, on any EVM chain.
Unstructured
Document processing and data extraction.
UploadPostToolkit
Tools to publish, schedule and track social media posts on TikTok, Instagram, YouTube, LinkedIn, X, Facebook and other platforms through the Upload-Post API.
Upstage
Document AI and OCR platform.
Upstash Box
Secure cloud sandboxes with a full Linux shell for agent code execution.
URLpipe
Tools that read web pages after their JavaScript runs, as Markdown, plus page metadata, console errors and Lighthouse audits; and a document loader.
Valthera
AI platform for healthcare applications.
Valyu
AI-powered data analysis platform.
VAST Data
High-performance, exabyte-scale data platform with native vector indexing.
Vaultak
Runtime security and behavioral monitoring for AI agents.
VDMS
Visual data management system.
vecr-compress
Deterministic LLM context compression with a regex retention whitelist for structured tokens.
VeidaImageGenerator
Text-to-image tool for the Veida AI API that runs on its anonymous free tier, so it needs no API key or account.
Vectara
Neural search platform with built-in understanding.
Vector Panda
Managed vector database with storage-only pricing and automatic, optimizer-selected indexing.
Vectorize
Vector database and semantic search.
VeqenCallbackHandler
Veqen records token usage and estimated AI costs by customer and feature, with local budget checks before model calls.
Vequil
Reliability and observability callback handler for AI agent operators.
Verifly
Agent-native email verification with deliverability verdicts for leads and signups.
Verdix
Verdix checks EVM address risk on Base before fund transfers and returns safe, caution, or danger with reasons using x402 USDC payments.
Veritensor
Security scanner for RAG document loaders to block data poisoning and prompt injection.
Vercel
Ephemeral, isolated Linux sandboxes for running untrusted code.
Voxell
Text-embedding API (Forge) with turbo, pro, and ultra model tiers.
VoyageAI by MongoDB
Embedding models and semantic search.
Vulnify
Runtime authorization for tool calls with ALLOW, REVIEW, or BLOCK decisions, risk scores, and optional human approval.
WaveSpeed
Image, video, and catalog model generation tools for the WaveSpeed AI marketplace.
WayzaToolkit
Tools that give an agent a Wayza address to ask people or other AIs questions, get recorded answers, and answer Wayza chat links.
Weaviate
Open-source vector database with GraphQL.
Web Metadata Extractor
URL metadata, Markdown, contact discovery, and SEO audit tools for LangChain agents.
WebExtract
Web page extraction API returning clean Markdown plus fixed-schema JSON for article metadata, product prices and tables.
Web2MDLoader
Hosted API that converts web pages to clean Markdown and heading-aware, token-bounded chunks;
Web2MDLoader yields one Document per chunk or per page.WebCrawlerAPILoader
Document loader that crawls a website or a single page with WebCrawlerAPI and returns one Document per page as markdown or HTML.
Webz
Global news search with semantic ranking and rich filters for LangChain agents.
Whoosh
Retriever backed by Whoosh, a pure-Python full-text search library with BM25F ranking and on-disk indexes.
Wity
Wity answers fixed-option questions about text in one pass, with a probability per option, for model routing, tool-risk checks and classification.
Work Ledger
Record, diff, and regression-test LangChain runs with a callback handler.
WRITER
Enterprise models and tools for building, activating, and supervising AI agents.
XAI
xAI’s Grok models for conversational AI.
x402
HTTP-native USDC payments so agents can pay for APIs per request.
xaidr
In-process runtime security sensor with LangChain middleware for input, tool-call, and output boundaries.
Xpoz
Social media data platform with billions of indexed posts and users.
XNS
S3-compatible object storage loaders and byte store with zero egress.
YDB
Yandex Database distributed storage system.
YantrikDB
Cognitive memory as a VectorStore and ChatMessageHistory with decay, consolidation, and contradiction checks.
YeagerAI
AI agent framework and development platform.
You.com
Real-time web search and content extraction APIs designed for LLM applications.
YouTube
Search, playlist, transcript, and video metadata retrievers for LangChain.
Yutori
Browser-control LLMs and web automation tools for LangChain agents.
ZeroGPU
Inference provider for apps and agents: purpose-built small and nano models on an edge network, serverless, with no GPU infrastructure.
ZeusDB
High-performance vector database.
Zotero
Reference management and research tool.
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