KosmoKrator

messaging

RabbitMQ MCP Integration for LangGraph

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

6 functions 6 read 0 write Username and password auth
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Connect RabbitMQ 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.

RabbitMQ MCP Config for LangGraph

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

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

Run the Gateway Manually

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

Why Use KosmoKrator Here

Scoped tools

Expose only RabbitMQ 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.

RabbitMQ Tools Visible to LangGraph

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

MCP toolSource functionTypeDescription
integration__rabbitmq__rabbitmq_list_queues rabbitmq.rabbitmq_list_queues Read List all RabbitMQ queues across all virtual hosts. Returns queue names, vhost, message counts, consumer counts, and state.
integration__rabbitmq__rabbitmq_get_queue rabbitmq.rabbitmq_get_queue Read Get detailed information about a specific RabbitMQ queue, including message counts, consumers, bindings, policy, and arguments.
integration__rabbitmq__rabbitmq_list_exchanges rabbitmq.rabbitmq_list_exchanges Read List all RabbitMQ exchanges across all virtual hosts. Returns exchange names, types, vhost, and durability.
integration__rabbitmq__rabbitmq_list_connections rabbitmq.rabbitmq_list_connections Read List all active RabbitMQ AMQP connections. Returns client info, peer host/port, channels, and connection state.
integration__rabbitmq__rabbitmq_list_vhosts rabbitmq.rabbitmq_list_vhosts Read List all RabbitMQ virtual hosts. Returns vhost names, tracing status, and message counts.
integration__rabbitmq__rabbitmq_get_overview rabbitmq.rabbitmq_get_overview Read Get RabbitMQ cluster overview — node info, RabbitMQ version, message rates, queue totals, and listener ports.

Related RabbitMQ Pages

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