# Docs by LangChain

> Documentation for LangSmith, Fleet, and our open source packages.

- [AGENT DEVELOPMENT LIFECYCLE (1447 pages)](https://docs.langchain.com/_llms/agent-development-lifecycle.txt): Documentation for AGENT DEVELOPMENT LIFECYCLE.
- [PRODUCTS AND SETUP (213 pages)](https://docs.langchain.com/_llms/products-and-setup.txt): Documentation for PRODUCTS AND SETUP.

## OpenAPI Specs

- [agent-server-openapi](/langsmith/agent-server-openapi.json)
- [openapi](https://api.host.langchain.com/openapi.json)
- [langsmith-platform-openapi](/langsmith/langsmith-platform-openapi.json)

> The links below point to documentation indexes. Follow each `/_llms/` index recursively until you reach documentation pages.

## Indexes

- [AGENT DEVELOPMENT LIFECYCLE (1447 pages)](https://docs.langchain.com/_llms/agent-development-lifecycle.txt): Documentation for AGENT DEVELOPMENT LIFECYCLE.
- [AGENT DEVELOPMENT LIFECYCLE / Build (451 pages)](https://docs.langchain.com/_llms/agent-development-lifecycle/build.txt): Build agents with open source
- [AGENT DEVELOPMENT LIFECYCLE / Build / Python (229 pages)](https://docs.langchain.com/_llms/agent-development-lifecycle/build/python.txt): Documentation for AGENT DEVELOPMENT LIFECYCLE / Build / Python.
- [AGENT DEVELOPMENT LIFECYCLE / Build / TypeScript (235 pages)](https://docs.langchain.com/_llms/agent-development-lifecycle/build/type-script.txt): Documentation for AGENT DEVELOPMENT LIFECYCLE / Build / TypeScript.
- [AGENT DEVELOPMENT LIFECYCLE / Deploy (251 pages)](https://docs.langchain.com/_llms/agent-development-lifecycle/deploy.txt): Ship agents to production
- [AGENT DEVELOPMENT LIFECYCLE / Deploy / Get started (145 pages)](https://docs.langchain.com/_llms/agent-development-lifecycle/deploy/get-started.txt): Documentation for AGENT DEVELOPMENT LIFECYCLE / Deploy / Get started.
- [AGENT DEVELOPMENT LIFECYCLE / Monitor (668 pages)](https://docs.langchain.com/_llms/agent-development-lifecycle/monitor.txt): Trace, debug, and observe agents
- [AGENT DEVELOPMENT LIFECYCLE / Monitor / Reference (568 pages)](https://docs.langchain.com/_llms/agent-development-lifecycle/monitor/reference.txt): Documentation for AGENT DEVELOPMENT LIFECYCLE / Monitor / Reference.
- [AGENT DEVELOPMENT LIFECYCLE / Monitor / Reference / LangSmith REST API (560 pages)](https://docs.langchain.com/_llms/agent-development-lifecycle/monitor/reference/lang-smith-rest-api.txt): Documentation for AGENT DEVELOPMENT LIFECYCLE / Monitor / Reference / LangSmith REST API.
- [AGENT DEVELOPMENT LIFECYCLE / Monitor / Reference / LangSmith REST API / Administration (152 pages)](https://docs.langchain.com/_llms/agent-development-lifecycle/monitor/reference/lang-smith-rest-api/administration.txt): Documentation for AGENT DEVELOPMENT LIFECYCLE / Monitor / Reference / LangSmith REST API / Administration.
- [PRODUCTS AND SETUP (213 pages)](https://docs.langchain.com/_llms/products-and-setup.txt): Documentation for PRODUCTS AND SETUP.
- [PRODUCTS AND SETUP / LangSmith setup (143 pages)](https://docs.langchain.com/_llms/products-and-setup/lang-smith-setup.txt): Hosting and administration