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Exa AI MCP Integration for LangGraph

Connect Exa AI to LangGraph through the local KosmoKrator MCP gateway with scoped tools, credentials, and write policy.

5 functions 5 read 0 write API key auth
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Connect Exa AI to LangGraph

Run KosmoKrator integration calls from LangGraph nodes while preserving local credentials and permissions.

Use a graph node that calls the KosmoKrator CLI for deterministic steps or an MCP client for dynamic tool selection. The gateway is local, scoped to this integration, and starts with --write=deny so LangGraph can inspect read-capable tools without receiving write access by default.

Exa AI MCP Config for LangGraph

Headless CLI calls fit repeatable graph edges; MCP fits exploratory agent nodes.

{
  "mcpServers": {
    "kosmokrator-exa": {
      "type": "stdio",
      "command": "kosmo",
      "args": [
        "mcp:serve",
        "--integration=exa",
        "--write=deny"
      ]
    }
  }
}

Run the Gateway Manually

kosmokrator mcp:serve --integration=exa --write=deny

Why Use KosmoKrator Here

Scoped tools

Expose only Exa AI instead of a broad multi-service tool list.

Local credentials

Reuse credentials already configured for the KosmoKrator CLI and Lua runtime.

Write policy

Start read-only, then opt into ask or allow for trusted workspaces.

Exa AI Tools Visible to LangGraph

LangGraph sees stable MCP tool names generated from the Exa AI integration catalog.

MCP toolSource functionTypeDescription
integration__exa__exa_search exa.exa_search Read Perform a neural search query across the web using Exa AI. Returns a list of relevant pages with titles, URLs, and scores. Supports filtering by category, date range, and autoprompt mode.
integration__exa__exa_find_similar exa.exa_find_similar Read Find web pages similar to a given URL. Useful for discovering related content, competitors, or alternative resources. Returns a list of similar pages with titles, URLs, and scores.
integration__exa__exa_get_contents exa.exa_get_contents Read Retrieve the full text contents and optional highlights for a list of Exa document IDs. Use this after a search or findSimilar call to get the actual page content.
integration__exa__exa_search_and_contents exa.exa_search_and_contents Read Search the web and retrieve full page contents in one call. Combines search and content retrieval into a single request for efficiency. Returns results with both metadata and full text content.
integration__exa__exa_get_current_user exa.exa_get_current_user Read Get the currently authenticated Exa user's profile information, including email and API usage details. Useful for verifying credentials.

Related Exa AI Pages

Exa AI CLIUse direct JSON commands instead of MCP discovery. Exa AI MCPFull gateway reference and MCP tool names. KosmoKrator for LangGraphClient-level gateway setup.