Exa MCP: Documentation

Connection

Hosted: https://mcp.exa.ai/mcp (Streamable HTTP), an x-api-key header with an Exa key, or OAuth. Local: npx -y exa-mcp-server (stdio), EXA_API_KEY from dashboard.exa.ai. Repo: github.com/exa-labs/exa-mcp-server (4.7k★).

Tools

web_search_exa — neural web search ranked by query meaning, web_fetch_exa — extracts clean readable content from a page by URL, agent_run — runs a multi-step agentic research task (several searches plus a summary) in a single call. Dedicated modes also cover code and research-paper search.

Agent flow

"Find recent articles on topic X and pull their content", "run a mini competitor research task and compare them in a table", "find code examples for this library in public repos".

Pricing

Free — a limited number of monthly calls with no key. With a key — pay-as-you-go starting at a small amount per 1,000 calls, with limits scaling up with usage. Current rates at exa.ai/pricing.

Note

An official Exa Labs product, actively developed (4.7k stars). agent_run costs more credits than a single search — use it for compound tasks.