KosmoKrator

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ConvertKit MCP Integration for LangGraph

Connect ConvertKit 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 ConvertKit 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.

ConvertKit MCP Config for LangGraph

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

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

Run the Gateway Manually

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

Why Use KosmoKrator Here

Scoped tools

Expose only ConvertKit 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.

ConvertKit Tools Visible to LangGraph

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

MCP toolSource functionTypeDescription
integration__convertkit__convertkit_list_subscribers convertkit.convertkit_list_subscribers Read List subscribers from your ConvertKit account. Supports pagination and date range filtering.
integration__convertkit__convertkit_get_subscriber convertkit.convertkit_get_subscriber Read Get details for a single ConvertKit subscriber by their subscriber ID.
integration__convertkit__convertkit_list_forms convertkit.convertkit_list_forms Read List all forms in your ConvertKit account. Returns form IDs and names.
integration__convertkit__convertkit_list_tags convertkit.convertkit_list_tags Read List all tags in your ConvertKit account. Returns tag IDs and names.
integration__convertkit__convertkit_create_tag convertkit.convertkit_create_tag Write Create a new tag in ConvertKit.
integration__convertkit__convertkit_list_broadcasts convertkit.convertkit_list_broadcasts Read List broadcasts (email blasts) from your ConvertKit account. Supports pagination.
integration__convertkit__convertkit_get_current_user convertkit.convertkit_get_current_user Read Get the authenticated ConvertKit account information, including account name, email, and plan details.

Related ConvertKit Pages

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