web3_clientVersion

Identify the client version of an EVM-compatible blockchain node to verify software compatibility and ensure proper network interaction.

Instructions

Returns the current client version

Input Schema

TableJSON Schema

Name	Required	Description	Default
No arguments

Implementation Reference

src/index.ts:100-126 (handler)

The handler function for the 'web3_clientVersion' tool. It calls the generic makeRPCCall helper with the method name to execute the RPC request, formats the result using formatResponse, and returns it as a text content response. Includes error handling.

server.tool(
  "web3_clientVersion",
  "Returns the current client version",
  {},
  async () => {
    try {
      const result = await makeRPCCall("web3_clientVersion");
      return {
        content: [
          {
            type: "text",
            text: formatResponse(result, "Web3 Client Version"),
          },
        ],
      };
    } catch (error: any) {
      return {
        content: [
          {
            type: "text",
            text: `Error: ${error.message}`,
          },
        ],
      };
    }
  },
);

src/index.ts:89-96 (helper)

Generic helper function used by the web3_clientVersion tool (and others) to perform RPC calls via the ethers JsonRpcProvider.

async function makeRPCCall(method: string, params: any[] = []): Promise<any> {
  try {
    const result = await provider.send(method, params);
    return result;
  } catch (error: any) {
    throw new Error(`RPC call failed: ${error.message}`);
  }
}

src/index.ts:100-126 (registration)

Registration of the 'web3_clientVersion' tool using server.tool, including name, description, empty input schema, and handler function.

server.tool(
  "web3_clientVersion",
  "Returns the current client version",
  {},
  async () => {
    try {
      const result = await makeRPCCall("web3_clientVersion");
      return {
        content: [
          {
            type: "text",
            text: formatResponse(result, "Web3 Client Version"),
          },
        ],
      };
    } catch (error: any) {
      return {
        content: [
          {
            type: "text",
            text: `Error: ${error.message}`,
          },
        ],
      };
    }
  },
);

src/index.ts:103-103 (schema)
Empty input schema for the web3_clientVersion tool (no parameters required).
```
{},
```

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