KosmoKrator

ai

Devin MCP Integration for LangGraph

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

5 functions 3 read 2 write API key auth
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Connect Devin 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.

Devin MCP Config for LangGraph

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

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

Run the Gateway Manually

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

Why Use KosmoKrator Here

Scoped tools

Expose only Devin 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.

Devin Tools Visible to LangGraph

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

MCP toolSource functionTypeDescription
integration__devin__devin_create_session devin.devin_create_session Write Create a new Devin AI session. Provide a task prompt describing what you want Devin to do. Optionally provide an idempotency key to prevent duplicate sessions.
integration__devin__devin_get_session devin.devin_get_session Read Retrieve details and current status of a Devin session. Use this to check progress on a task, view the session state, or get the output.
integration__devin__devin_list_sessions devin.devin_list_sessions Read List all Devin sessions. Returns an overview of all sessions including their IDs, statuses, and creation times.
integration__devin__devin_send_message devin.devin_send_message Write Send a message to an existing Devin session. Use this to provide additional instructions, ask questions, or guide the AI during an active session.
integration__devin__devin_get_current_user devin.devin_get_current_user Read Get information about the currently authenticated Devin user. Use this to verify the API connection and identify which account is being used.

Related Devin Pages

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