MCP Ethers Wallet

Implementation Reference

• src/tools/core.ts:317-336 (handler)

  The main handler function for the 'parseEther' MCP tool. It takes an ether amount as a string, uses ethers.parseEther to convert it to wei (bigint), and returns the wei value as a string.

      try {
        const weiValue = ethers.parseEther(ether);
        
        return {
          content: [{ 
            type: "text", 
            text: weiValue.toString()
          }]
        };
      } catch (error) {
        return {
          isError: true,
          content: [{ 
            type: "text", 
            text: `Error parsing ether: ${error instanceof Error ? error.message : String(error)}`
          }]
        };
      }
    }
  );

• src/tools/core.ts:312-316 (schema)

  Zod input schema for the parseEther tool, defining the 'ether' parameter as a string.

    ether: z.string().describe(
      "The ether value to parse"
    )
  },
  async ({ ether }) => {

• src/tools/core.ts:310-310 (registration)

  Registration of the parseEther tool using server.tool() within registerCoreTools function.

  "parseEther",

• src/tools/core.ts:894-894 (helper)

  Helper usage of ethers.parseEther inside sendTransaction tool.

  value: ethers.parseEther(value),

• src/tools/core.ts:1020-1020 (helper)

  Helper usage of ethers.parseEther inside sendTransactionWithOptions tool.

  value: ethers.parseEther(value),