Mempool MCP Server

Instructions

Implementation Reference

• src/interface/controllers/TxToolsController.ts:20-32 (registration)

  Registration of the 'get-tx-info' MCP tool including input schema (zod for txid), description, and thin handler function that calls TxService.getTxInfo and returns formatted text content.
  private registerGetTxHandler(): void { this.server.tool( "get-tx-info", "Returns details about a transaction", { txid: z.string().length(64).describe("The txid to get info for"), }, async ({ txid }) => { const text = await this.txService.getTxInfo({ txid }); return { content: [{ type: "text", text }] }; } ); }
• src/application/services/TxService.ts:11-14 (handler)

  Core handler logic for fetching and formatting transaction info using request service and formatResponse helper.
  async getTxInfo({ txid }: { txid: string }): Promise<string> { const data = await this.requestService.getTxInfo({ txid }); return formatResponse<ITxResponse>("Transaction Info", data); }
• src/domain/models/responses/tx/ITxResponse.ts:1-11 (schema)

  Type definition (schema) for the transaction info response data structure.
  export interface ITxResponse { txid: string; version: number; locktime: number; vin: any[]; vout: any[]; size: number; weight: number; fee: number; status: ITxStatusResponse; }
• src/infrastructure/services/requests/TxRequestService.ts:10-12 (helper)

  Low-level helper that performs the actual API request to retrieve raw transaction info for the given txid.
  async getTxInfo({ txid }: { txid: string }): Promise<ITxResponse | null> { return this.client.makeRequest<ITxResponse>(`tx/${txid}`); }