wallet_get_chain_id
Retrieve the chain ID of the Ethereum or EVM-compatible network connected to your wallet, ensuring accurate blockchain interactions and transaction processing.
Instructions
Get the chain ID the wallet is connected to
Input Schema
TableJSON Schema
| Name | Required | Description | Default |
|---|---|---|---|
| wallet | No | The wallet (private key, mnemonic, or JSON). If not provided, uses PRIVATE_KEY environment variable if set. |
Implementation Reference
- src/handlers/wallet.ts:236-253 (handler)The getChainIdHandler function implements the core logic for the wallet_get_chain_id tool. It retrieves the wallet, checks for a provider, fetches the chain ID using wallet.getChainId(), and returns a formatted success response.
export const getChainIdHandler = async (input: any): Promise<ToolResultSchema> => { try { const wallet = await getWallet(input.wallet, input.password); if (!wallet.provider) { return createErrorResponse("Provider is required to get chain ID, please set the provider URL"); } const chainId = await wallet.getChainId(); return createSuccessResponse( `Chain ID retrieved successfully Chain ID: ${chainId.toString()} `); } catch (error) { return createErrorResponse(`Failed to get chain ID: ${(error as Error).message}`); } }; - src/tools.ts:188-197 (schema)The input schema definition for the wallet_get_chain_id tool, specifying an optional wallet parameter.
{ name: "wallet_get_chain_id", description: "Get the chain ID the wallet is connected to", inputSchema: { type: "object", properties: { wallet: { type: "string", description: "The wallet (private key, mnemonic, or JSON). If not provided, uses PRIVATE_KEY environment variable if set." } }, required: [] } - src/tools.ts:573-573 (registration)The registration mapping the 'wallet_get_chain_id' tool name to its handler function getChainIdHandler in the handlers dictionary.
"wallet_get_chain_id": getChainIdHandler, - src/tools.ts:188-197 (registration)The tool definition in the tools array, registering the name, description, and schema for wallet_get_chain_id.
{ name: "wallet_get_chain_id", description: "Get the chain ID the wallet is connected to", inputSchema: { type: "object", properties: { wallet: { type: "string", description: "The wallet (private key, mnemonic, or JSON). If not provided, uses PRIVATE_KEY environment variable if set." } }, required: [] } - src/handlers/wallet.ts:1-3 (helper)Imports for getWallet and getProvider helpers used in the handler.
import { ethers, providers } from "ethers"; import { ToolResultSchema } from "../types.js"; import { createSuccessResponse, createErrorResponse, getProvider, getWallet, setProvider } from "./utils.js";