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Render MCP Integration for LangGraph

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

7 functions 6 read 1 write API key auth
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Connect Render 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.

Render MCP Config for LangGraph

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

{
  "mcpServers": {
    "kosmokrator-render2": {
      "type": "stdio",
      "command": "kosmo",
      "args": [
        "mcp:serve",
        "--integration=render2",
        "--write=deny"
      ]
    }
  }
}

Run the Gateway Manually

kosmokrator mcp:serve --integration=render2 --write=deny

Why Use KosmoKrator Here

Scoped tools

Expose only Render 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.

Render Tools Visible to LangGraph

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

MCP toolSource functionTypeDescription
integration__render2__render_list_services render2.render_list_services Read List all services in the Render account. Returns service IDs, names, type, status, and URLs.
integration__render2__render_get_service render2.render_get_service Read Get details for a specific Render service by ID. Returns full service information including type, status, URLs, and configuration.
integration__render2__render_create_service render2.render_create_service Write Create a new service on Render. Supports web services, background workers, cron jobs, and private services.
integration__render2__render_list_deploys render2.render_list_deploys Read List deploys for a specific Render service. Returns deploy IDs, status, commit info, and timestamps.
integration__render2__render_get_deploy render2.render_get_deploy Read Get details for a specific Render deploy by ID. Returns full deploy information including status, commit, and logs.
integration__render2__render_list_jobs render2.render_list_jobs Read List jobs for a specific Render service. Returns job IDs, status, start command, and timestamps.
integration__render2__render_get_current_user render2.render_get_current_user Read Get information about the current authenticated Render account, including email, name, and plan.

Related Render Pages

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