MCP Crypto Wallet EVM

Instructions

Implementation Reference

• src/handlers/wallet.ts:519-536 (handler)

  The handler function that executes the logic for retrieving a transaction by hash using the ethers provider.

  export const getTransactionHandler = async (input: any): Promise<ToolResultSchema> => {
    try {
      if (!input.transactionHash) {
        return createErrorResponse("Transaction hash is required");
      }
  
      const provider = getProvider();
      const transaction = await provider.getTransaction(input.transactionHash);
  
      return createSuccessResponse(
      `Transaction retrieved successfully
        Transaction hash: ${input.transactionHash}
        Transaction: ${transaction}
      `);
    } catch (error) {
      return createErrorResponse(`Failed to get transaction: ${(error as Error).message}`);
    }
  };

• src/tools.ts:404-412 (schema)

  The input schema defining the parameters for the provider_get_transaction tool.

  name: "provider_get_transaction",
  description: "Get a transaction by hash",
  inputSchema: {
    type: "object",
    properties: {
      transactionHash: { type: "string", description: "The transaction hash" }
    },
    required: ["transactionHash"]
  }

• src/tools.ts:591-591 (registration)

  The registration mapping the tool name 'provider_get_transaction' to its handler function in the handlers dictionary.

  "provider_get_transaction": getTransactionHandler,