MCPilot

Instructions

Implementation Reference

• packages/metamask-mcp/src/tools/get-transaction-receipt.ts:16-31 (handler)

  The execute handler that fetches and returns the transaction receipt using wagmi's getTransactionReceipt function.

  execute: async (args) => {
    const hash = args.hash as Address
    const chainId = args.chainId as typeof wagmiConfig['chains'][number]['id']
    const result = await getTransactionReceipt(wagmiConfig, {
      hash,
      chainId,
    })
    return {
      content: [
        {
          type: "text",
          text: JSONStringify(result),
        },
      ],
    }
  },

• packages/metamask-mcp/src/tools/get-transaction-receipt.ts:12-15 (schema)

  Zod input schema defining parameters: hash (required string) and chainId (optional number).

  parameters: z.object({
    hash: z.string(),
    chainId: z.coerce.number().optional(),
  }),

• packages/metamask-mcp/src/tools/get-transaction-receipt.ts:9-32 (registration)

  Tool definition and registration block within the registerGetTransactionReceiptTools function, including name, description, schema, and handler.

  server.addTool({
    name: "get-transaction-receipt",
    description: "Get the Transaction Receipt given a Transaction hash",
    parameters: z.object({
      hash: z.string(),
      chainId: z.coerce.number().optional(),
    }),
    execute: async (args) => {
      const hash = args.hash as Address
      const chainId = args.chainId as typeof wagmiConfig['chains'][number]['id']
      const result = await getTransactionReceipt(wagmiConfig, {
        hash,
        chainId,
      })
      return {
        content: [
          {
            type: "text",
            text: JSONStringify(result),
          },
        ],
      }
    },
  });

• packages/metamask-mcp/src/index.ts:52-52 (registration)

  Top-level registration call that adds the tool to the main FastMCP server instance.

  registerGetTransactionReceiptTools(server);