call_contract_view

Instructions

Implementation Reference

• src/handlers/contract-handlers.ts:15-41 (schema)

  Defines the tool schema including input parameters for call_contract_view

  {
    name: 'call_contract_view',
    description: 'Call a read-only contract function',
    inputSchema: {
      type: 'object',
      properties: {
        blockchain: {
          type: 'string',
          description: 'Blockchain name',
        },
        contractAddress: {
          type: 'string',
          description: 'Contract address',
        },
        data: {
          type: 'string',
          description: 'Encoded function call data',
        },
        network: {
          type: 'string',
          enum: ['mainnet', 'testnet'],
          description: 'Network type (defaults to mainnet)',
        },
      },
      required: ['blockchain', 'contractAddress', 'data'],
    },
  },

• src/handlers/contract-handlers.ts:59-81 (handler)

  Handler logic for executing the call_contract_view tool, delegates to advancedBlockchain service

  case 'call_contract_view': {
    const blockchain = args?.blockchain as string;
    const contractAddress = args?.contractAddress as string;
    const data = args?.data as string;
    const network = (args?.network as 'mainnet' | 'testnet') || 'mainnet';
  
    const result = await advancedBlockchain.callContractView(
      blockchain,
      contractAddress,
      data,
      network
    );
  
    return {
      content: [
        {
          type: 'text',
          text: JSON.stringify(result, null, 2),
        },
      ],
      isError: !result.success,
    };
  }

• src/index.ts:88-101 (registration)

  Registers all tool schemas including call_contract_view via registerContractHandlers for the ListTools endpoint

  const tools: Tool[] = [
    ...registerBlockchainHandlers(server, blockchainService),
    ...registerDomainHandlers(server, domainResolver),
    ...registerTransactionHandlers(server, advancedBlockchain),
    ...registerTokenHandlers(server, advancedBlockchain),
    ...registerMultichainHandlers(server, advancedBlockchain),
    ...registerContractHandlers(server, advancedBlockchain),
    ...registerUtilityHandlers(server, advancedBlockchain),
    ...registerEndpointHandlers(server, endpointManager),
    ...registerSolanaHandlers(server, solanaService),
    ...registerCosmosHandlers(server, cosmosService),
    ...registerSuiHandlers(server, suiService),
    ...registerDocsHandlers(server, docsManager),
  ];

• src/index.ts:114-126 (handler)

  Central tool dispatcher that routes call_contract_view to handleContractTool

  let result =
    (await handleBlockchainTool(name, args, blockchainService)) ||
    (await handleDomainTool(name, args, domainResolver)) ||
    (await handleTransactionTool(name, args, advancedBlockchain)) ||
    (await handleTokenTool(name, args, advancedBlockchain)) ||
    (await handleMultichainTool(name, args, advancedBlockchain)) ||
    (await handleContractTool(name, args, advancedBlockchain)) ||
    (await handleUtilityTool(name, args, advancedBlockchain)) ||
    (await handleEndpointTool(name, args, endpointManager)) ||
    (await handleSolanaTool(name, args, solanaService)) ||
    (await handleCosmosTool(name, args, cosmosService)) ||
    (await handleSuiTool(name, args, suiService)) ||
    (await handleDocsTool(name, args, docsManager));

• src/services/advanced-blockchain-service.ts:486-512 (helper)

  Core implementation that performs the eth_call RPC to call the contract view function

  async callContractView(
    blockchain: string,
    contractAddress: string,
    data: string,
    network: 'mainnet' | 'testnet' = 'mainnet'
  ): Promise<EndpointResponse> {
    const service = this.blockchainService.getServiceByBlockchain(blockchain, network);
  
    if (!service) {
      return {
        success: false,
        error: `Blockchain service not found: ${blockchain} (${network})`,
      };
    }
  
    return this.blockchainService.callRPCMethod(
      service.id,
      'eth_call',
      [
        {
          to: contractAddress,
          data: data,
        },
        'latest',
      ]
    );
  }