LangSearch

What it does

LangSearch offers two Free APIs: Free Web Search API and Free Rerank API, designed to connect your LLM applications to the world, and access clean, accurate, high-quality context. For individuals and small teams, we offer free access as we build AGI together.

Connect AI agents to the web with LangSearch's free Web Search API. Get source links and full webpage text through API, MCP or Skill. No credit card required.

Your model can reason. Give it the world to reason with. Find relevant sources. Bring usable context into every answer. 1 export LANGSEARCH_API_KEY="YOUR_LANGSEARCH_API_KEY" 2 3 codex mcp add langsearch --url https://mcp.langsearch.com/mcp --bearer-token-env-var LANGSEARCH_API_KEY Add your LangSearch API key, then run the command or save the configuration in your client. Price, accuracy, and response latency. Three ways to look at your next search. Every supported search feature is included in the Free Plan. No charge for extra context or results. At 10,000 requests · straight-line usage cost, not a monthly-plan quote. Calculated from published usage rates before free credits, tax or volume…from langsearch.com

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