MCPilot

Instructions

Implementation Reference

• packages/metamask-mcp/src/tools/get-chains.ts:12-22 (handler)

  The execute handler for the 'get-chains' tool. It retrieves configured chains using wagmi's getChains function with the wagmiConfig and returns the JSON-stringified result as text content.

  execute: async () => {
    const result = getChains(wagmiConfig)
    return {
      content: [
        {
          type: "text",
          text: JSONStringify(result),
        },
      ],
    }
  },

• packages/metamask-mcp/src/tools/get-chains.ts:11-11 (schema)

  Zod schema defining the input parameters for the 'get-chains' tool (empty object, no parameters).

  parameters: z.object({}),

• packages/metamask-mcp/src/tools/get-chains.ts:7-24 (registration)

  The registerGetChainsTools function that defines and registers the 'get-chains' MCP tool with the FastMCP server, including name, description, schema, and handler.

  export function registerGetChainsTools(server: FastMCP): void {
    server.addTool({
      name: "get-chains",
      description: "Get the configured chains",
      parameters: z.object({}),
      execute: async () => {
        const result = getChains(wagmiConfig)
        return {
          content: [
            {
              type: "text",
              text: JSONStringify(result),
            },
          ],
        }
      },
    });
  };

• packages/metamask-mcp/src/index.ts:48-48 (registration)

  The call to registerGetChainsTools during server initialization, importing all tool registrations from './tools/index.js'.

  registerGetChainsTools(server);