# LangSearch

> Free Web Search API for AI agents. The World Engine for AGI.

- [LangSearch Web Search API](https://docs.langsearch.com/reference/search-api-guide.md): Search the web, retrieve useful context, and build with source-backed information.
- [For your coding agent](https://docs.langsearch.com/reference/search-api-guide-for-coding-agents.md): A self-contained Web Search integration reference for coding agents.
- [Search Best Practices](https://docs.langsearch.com/reference/search-best-practices.md): Shape queries, choose context, and build reliable search workflows.
- [LangSearch MCP](https://docs.langsearch.com/integrations/mcp.md): Connect your tools to the web through the official LangSearch MCP server.
- [Agent Skill](https://docs.langsearch.com/integrations/skill.md): Let your agent read the official LangSearch installation guide.
- [Python](https://docs.langsearch.com/integrations/python.md): Call LangSearch with the Python standard library.
- [JavaScript](https://docs.langsearch.com/integrations/javascript.md): Use native fetch from a server-side JavaScript application.
- [LangChain](https://docs.langsearch.com/use-cases/using-langsearch-in-langchain.md): Wrap a Web Search request as a tool for your agent.
- [Plan & usage](https://docs.langsearch.com/limits/api-limits.md): Token metering, account rate limits, and daily resets at 00:00 UTC.
- [Errors & troubleshooting](https://docs.langsearch.com/api/errors.md): Identify request problems and retry only when appropriate.
- [Frequently asked questions](https://docs.langsearch.com/resources/faq.md): Answers to common integration and plan questions.
- [Web Search](https://docs.langsearch.com/api/web-search-api.md): Retrieve web results with source URLs and context for your AI application.

## OpenAPI Specs

- [openapi](/api/openapi.json)