OpenRouter MCP Multimodal Server

Instructions

Implementation Reference

• src/tool-handlers/get-model-info.ts:8-54 (handler)

  The handler function that executes the get_model_info tool logic, retrieving model details from the cache and returning them as JSON or error messages.

  export async function handleGetModelInfo(
    request: { params: { arguments: GetModelInfoToolRequest } },
    modelCache: ModelCache
  ) {
    const args = request.params.arguments;
    
    try {
      if (!modelCache.isCacheValid()) {
        return {
          content: [
            {
              type: 'text',
              text: 'Model cache is empty or expired. Please call search_models first to populate the cache.',
            },
          ],
          isError: true,
        };
      }
      
      const model = modelCache.getModel(args.model);
      if (!model) {
        throw new McpError(ErrorCode.InvalidParams, `Model '${args.model}' not found`);
      }
      
      return {
        content: [
          {
            type: 'text',
            text: JSON.stringify(model, null, 2),
          },
        ],
      };
    } catch (error) {
      if (error instanceof Error) {
        return {
          content: [
            {
              type: 'text',
              text: `Error retrieving model info: ${error.message}`,
            },
          ],
          isError: true,
        };
      }
      throw error;
    }
  }

• src/tool-handlers/get-model-info.ts:4-6 (schema)

  TypeScript interface defining the input parameters for the get_model_info tool (model ID string).

  export interface GetModelInfoToolRequest {
    model: string;
  }

• src/tool-handlers.ts:286-299 (registration)

  Registers the get_model_info tool in the ListTools response, including name, description, and input schema.

  {
    name: 'get_model_info',
    description: 'Get detailed information about a specific model',
    inputSchema: {
      type: 'object',
      properties: {
        model: {
          type: 'string',
          description: 'The model ID to get information for',
        },
      },
      required: ['model'],
    },
  },

• src/tool-handlers.ts:356-361 (registration)

  Dispatches calls to the 'get_model_info' tool by invoking the handleGetModelInfo handler with the request arguments and model cache.

  case 'get_model_info':
    return handleGetModelInfo({
      params: {
        arguments: request.params.arguments as unknown as GetModelInfoToolRequest
      }
    }, this.modelCache);