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Modal MCP Integration for Claude Agent SDK

Connect Modal to Claude Agent SDK through the local KosmoKrator MCP gateway with scoped tools, credentials, and write policy.

7 functions 7 read 0 write API key auth

Connect Modal 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.

Modal MCP Config for Claude Agent SDK

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

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

Run the Gateway Manually

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

Why Use KosmoKrator Here

Scoped tools

Expose only Modal 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.

Modal Tools Visible to Claude Agent SDK

Claude Agent SDK sees stable MCP tool names generated from the Modal integration catalog.

MCP toolSource functionTypeDescription
integration__modal__modal_list_apps modal.modal_list_apps Read List all Modal apps. Returns app IDs, names, and status details.
integration__modal__modal_get_app modal.modal_get_app Read Get details for a specific Modal app by ID, including status and metadata.
integration__modal__modal_list_functions modal.modal_list_functions Read List all functions for a Modal app. Returns function IDs, names, and runtime details.
integration__modal__modal_list_schedules modal.modal_list_schedules Read List all scheduled functions for a Modal app. Returns schedule IDs, cron expressions, and function details.
integration__modal__modal_list_volumes modal.modal_list_volumes Read List all Modal volumes. Returns volume IDs, names, and size details.
integration__modal__modal_list_secrets modal.modal_list_secrets Read List all Modal secrets. Returns secret names and creation dates (values are not exposed).
integration__modal__modal_get_current_user modal.modal_get_current_user Read Get the current authenticated Modal user information, including name, email, and account details.

Related Modal Pages