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ConvertKit MCP Integration for Claude Agent SDK

Connect ConvertKit to Claude Agent SDK 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 Claude Agent SDK

Give Claude Agent SDK workflows access to KosmoKrator integrations through a local MCP server.

Add a KosmoKrator stdio MCP server to the Claude Agent SDK options. The gateway is local, scoped to this integration, and starts with --write=deny so Claude Agent SDK can inspect read-capable tools without receiving write access by default.

ConvertKit MCP Config for Claude Agent SDK

Use a narrow integration list so the agent does not load unrelated tools.

{
  "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 Claude Agent SDK

Claude Agent SDK 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 Claude Agent SDKClient-level gateway setup.