openrpc-mpc-server

Instructions

Implementation Reference

• src/index.ts:110-128 (handler)

  Handler for the rpc_discover tool. Extracts the server URL from arguments, creates an HTTPTransport and OpenRPC Client, calls rpc.discover method on the server, and returns the formatted result.

  case "rpc_discover": {
    const server = String(request.params.arguments?.server);
    if (!server) {
      throw new Error("Server is required");
    }
    let transport = new HTTPTransport(server);
    let client = new Client(new RequestManager([transport]));
    const results = await client.request({ method: "rpc.discover" });
  
    return  {
      toolResult: {
        content: [{
          type: "text",
          text: JSON.stringify(results, null, 2)
        }],
        isError: false
      }
    };
  }

• src/index.ts:68-82 (registration)

  Tool registration in the ListToolsRequestHandler. Defines the name, description, and inputSchema (requiring 'server' URL) for the rpc_discover tool.

    {
      name: "rpc_discover",
      description: "This uses JSON-RPC to call `rpc.discover` which is part of the OpenRPC Specification for discovery for JSON-RPC servers. A user would prompt: What JSON-RPC methods does this server have? <server url>",
      inputSchema: {
        type: "object",
        properties: {
          server: {
            type: "string",
            description: "Server URL"
          },
        },
        required: ["server"]
      }
    }
  ]

• src/index.ts:71-80 (schema)

  Input schema for rpc_discover tool: object with required 'server' string property.

  inputSchema: {
    type: "object",
    properties: {
      server: {
        type: "string",
        description: "Server URL"
      },
    },
    required: ["server"]
  }