get-ens-name
Fetch the primary ENS name for any Ethereum address using MetaMask MCP server to interact with blockchain data securely.
Instructions
Fetch the primary ENS name for address.
Input Schema
TableJSON Schema
| Name | Required | Description | Default |
|---|---|---|---|
| address | Yes | Address to get the name for. | |
| chainId | No | ID of chain to use when fetching data. | |
| blockNumber | No | Block number to get name at. |
Implementation Reference
- src/tools/get-ens-name.ts:16-26 (handler)The async execute function implementing the tool logic: calls wagmi's getEnsName and formats result as MCP text content.
execute: async (args) => { const result = await getEnsName(wagmiConfig, args); return { content: [ { type: "text", text: result ?? "undefined", }, ], }; }, - src/tools/get-ens-name.ts:11-15 (schema)Zod input schema defining parameters: address (required), chainId and blockNumber (optional).
parameters: z.object({ address: Address.describe("Address to get the name for."), chainId: z.coerce.number().optional().describe("ID of chain to use when fetching data."), blockNumber: z.coerce.bigint().optional().describe("Block number to get name at."), }), - src/tools/get-ens-name.ts:7-28 (registration)Registration function that adds the 'get-ens-name' tool to the FastMCP server including name, description, schema, and handler.
export function registerGetENSNameTools(server: FastMCP, wagmiConfig: Config): void { server.addTool({ name: "get-ens-name", description: "Fetch the primary ENS name for address.", parameters: z.object({ address: Address.describe("Address to get the name for."), chainId: z.coerce.number().optional().describe("ID of chain to use when fetching data."), blockNumber: z.coerce.bigint().optional().describe("Block number to get name at."), }), execute: async (args) => { const result = await getEnsName(wagmiConfig, args); return { content: [ { type: "text", text: result ?? "undefined", }, ], }; }, }); }; - src/tools/register-tools.ts:47-47 (registration)Invocation of the tool registration function within the main registerTools aggregator.
registerGetENSNameTools(server, wagmiConfig);