Grove's MCP Server for Pocket Network

Instructions

Implementation Reference

• src/handlers/solana-handlers.ts:170-188 (registration)

  Tool registration definition including name, description, and input schema for 'get_solana_fee_for_message'

  {
    name: 'get_solana_fee_for_message',
    description: 'Estimate fee for a serialized Solana message (base64)',
    inputSchema: {
      type: 'object',
      properties: {
        message: {
          type: 'string',
          description: 'Serialized message in base64',
        },
        network: {
          type: 'string',
          enum: ['mainnet', 'testnet'],
          description: 'Network type (defaults to mainnet)',
        },
      },
      required: ['message'],
    },
  },

• src/handlers/solana-handlers.ts:408-423 (handler)

  Dispatcher handler case in handleSolanaTool function that calls SolanaService.getFeeForMessage with parsed arguments

  case 'get_solana_fee_for_message': {
    const message = args?.message as string;
    const network = (args?.network as 'mainnet' | 'testnet') || 'mainnet';
  
    const result = await solanaService.getFeeForMessage(message, network);
  
    return {
      content: [
        {
          type: 'text',
          text: JSON.stringify(result, null, 2),
        },
      ],
      isError: !result.success,
    };
  }

• src/services/solana-service.ts:348-366 (handler)

  Core implementation in SolanaService.getFeeForMessage that retrieves Solana RPC service and calls getFeeForMessage RPC method

  async getFeeForMessage(
    message: string,
    network: 'mainnet' | 'testnet' = 'mainnet'
  ): Promise<EndpointResponse> {
    const service = this.blockchainService.getServiceByBlockchain('solana', network);
  
    if (!service) {
      return {
        success: false,
        error: `Solana service not found for ${network}`,
      };
    }
  
    return this.blockchainService.callRPCMethod(
      service.id,
      'getFeeForMessage',
      [message]
    );
  }