EVM MCP Server

Instructions

Implementation Reference

• src/core/tools.ts:148-182 (registration)

  Registration of the 'get_supported_networks' tool, including empty input schema and inline async handler that calls getSupportedNetworks() to retrieve and return the list of supported networks.

  server.tool(
    'get_supported_networks',
    'Get a list of supported EVM networks',
    {},
    async () => {
      try {
        const networks = getSupportedNetworks();
  
        return {
          content: [
            {
              type: 'text',
              text: JSON.stringify(
                {
                  supportedNetworks: networks
                },
                null,
                2
              )
            }
          ]
        };
      } catch (error) {
        return {
          content: [
            {
              type: 'text',
              text: `Error fetching supported networks: ${error instanceof Error ? error.message : String(error)}`
            }
          ],
          isError: true
        };
      }
    }
  );

• src/core/chains.ts:341-345 (helper)

  Helper function that generates the list of supported networks by extracting keys from networkNameMap, filtering out short aliases (length <=2), and sorting alphabetically.

  export function getSupportedNetworks(): string[] {
    return Object.keys(networkNameMap)
      .filter((name) => name.length > 2) // Filter out short aliases
      .sort();
  }

• src/server/server.ts:18-19 (registration)

  Calls registerEVMTools which includes the registration of get_supported_networks among other tools.

  registerEVMTools(server);
  registerEVMPrompts(server);

• src/core/resources.ts:395-395 (helper)

  Usage of getSupportedNetworks() in the supported_networks resource handler (not the tool).

  const networks = getSupportedNetworks();

• src/core/tools.ts:151-151 (schema)

  Empty Zod schema indicating the tool takes no input parameters.

  {},