KosmoKrator

ecommerce

Gumroad MCP Integration for LangGraph

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

7 functions 7 read 0 write Bearer token auth
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Connect Gumroad 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.

Gumroad MCP Config for LangGraph

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

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

Run the Gateway Manually

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

Why Use KosmoKrator Here

Scoped tools

Expose only Gumroad 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.

Gumroad Tools Visible to LangGraph

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

MCP toolSource functionTypeDescription
integration__gumroad__gumroad_list_products gumroad.gumroad_list_products Read List all digital products in your Gumroad account. Returns product names, IDs, prices, and metadata.
integration__gumroad__gumroad_get_product gumroad.gumroad_get_product Read Get detailed information about a single Gumroad product by its ID. Returns full product data including description, price, variants, and purchase URL.
integration__gumroad__gumroad_list_sales gumroad.gumroad_list_sales Read List sales from your Gumroad account. Optionally filter by product ID, date range, or page. Returns sale details including buyer info, amount, and product.
integration__gumroad__gumroad_list_subscribers gumroad.gumroad_list_subscribers Read List all subscribers in your Gumroad account. Optionally filter by product ID to get subscribers for a specific membership or product.
integration__gumroad__gumroad_get_subscriber gumroad.gumroad_get_subscriber Read Get detailed information about a single Gumroad subscriber by their ID. Returns subscriber status, email, and subscription details.
integration__gumroad__gumroad_list_offers gumroad.gumroad_list_offers Read List all offers (discount codes) in your Gumroad account. Returns offer codes, discount amounts, and associated products.
integration__gumroad__gumroad_get_current_user gumroad.gumroad_get_current_user Read Get the profile of the currently authenticated Gumroad user. Useful to verify the connection and see account details.

Related Gumroad Pages

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