MCPServerStreamableHttp: Connecting multiple times is causing timeout error

[gianluca-henze-parloa]

• Have you read the docs? Agents SDK docs
  Yes
• Have you searched for related issues? Others may have had similar requests
  Yes

Question

Hi there,
I am currently facing a problem with the MCPServerStreamableHttp, where I want to connect 7 different agents to the same MCP and filter per agent. Only creating one connection doesn't work, as the filter than overrides the filter of others. Therfore I am connecting 7 times, the problem - first time I am connecting always just one random agent Connects and I have to wait 60 seconds for the timeout. After that all agents instantly connect and work as they should the whole time. That is extremly frustratig and I would love to solve it.

import { createCheckoutAgent } from './checkout';
import { createEventAgent } from './event';
import { createFaqAgent } from './faq';
import { createGreeterAgent } from './greeter';
import { MCPServerStreamableHttp, createMCPToolStaticFilter } from '@openai/agents';
import { Logger } from '@nestjs/common';
import { createFlightsAgent } from './flights';
import { createRestaurantsAgent } from './restaurants';
import { createHotelsAgent } from './hotels';

export const createTravelScenario = async (
  companyName: string,
  conversationId: string,
  memory?: string
) => {
  const logger = new Logger('TravelScenario');

  const agentToolConfigs = {
    Greeter: {
      allowed: ['show_destinations'],
      blocked: [] as string[],
    },
    Event: {
      allowed: ['find_tickets', 'find_events', 'book_trip'],
      blocked: [] as string[],
    },
    FAQ: {
      allowed: ['travel_faq'],
      blocked: [] as string[],
    },
    Checkout: {
      allowed: ['remove_from_cart_travel', 'show_travel_cart', 'request_confirmation'],
      blocked: [] as string[],
    },
    Hotels: {
      allowed: ['find_hotels', 'book_trip', 'show_travel_cart'],
      blocked: [] as string[],
    },
    Flights: {
      allowed: ['find_flights', 'book_trip', 'show_travel_cart'],
      blocked: [] as string[],
    },
    Restaurants: {
      allowed: ['find_restaurants', 'send_email'],
      blocked: [] as string[],
    },
  };

  // Create filtered MCP servers for each agent (official toolFilter API)
  const mcpServerUrl = process.env.FRONTEND_URL || 'http://localhost:3000';
  const mcpUrl = `${mcpServerUrl}/api/mcp?conversationId=${encodeURIComponent(conversationId)}`;
  const createFilteredMcpServer = async (
    agentName: keyof typeof agentToolConfigs
  ) => {
    const server = new MCPServerStreamableHttp({
      url: mcpUrl,
      name: agentName,
      cacheToolsList: true,
      toolFilter: createMCPToolStaticFilter({
        allowed: agentToolConfigs[agentName].allowed,
        blocked: agentToolConfigs[agentName].blocked,
      }),
    });
    await server.connect();
    logger.log(`✅ MCP Server connected for ${agentName} agent`);
    return server;
  };

  const [greeterMcp, eventMcp, faqMcp, checkoutMcp, hotelsMcp, flightsMcp, restaurantsMcp] =
    await Promise.all([
      createFilteredMcpServer('Greeter'),
      createFilteredMcpServer('Event'),
      createFilteredMcpServer('FAQ'),
      createFilteredMcpServer('Checkout'),
      createFilteredMcpServer('Hotels'),
      createFilteredMcpServer('Flights'),
      createFilteredMcpServer('Restaurants'),
    ]);

  // Create agents with their respective filtered MCP servers
  const greeter = createGreeterAgent(companyName, greeterMcp, memory);
  const event = createEventAgent(companyName, eventMcp, memory);
  const faq = createFaqAgent(companyName, faqMcp, memory);
  const checkout = createCheckoutAgent(companyName, checkoutMcp, memory);
  const hotels = createHotelsAgent(companyName, hotelsMcp, memory);
  const flights = createFlightsAgent(companyName, flightsMcp, memory);
  const restaurants = createRestaurantsAgent(companyName, restaurantsMcp, memory);

  greeter.handoffs = [hotels, flights, restaurants, event, faq, checkout];
  event.handoffs = [hotels, flights, restaurants, faq, checkout];
  hotels.handoffs = [flights, restaurants, event, faq, checkout];
  flights.handoffs = [restaurants, event, faq, checkout];
  restaurants.handoffs = [event, faq, checkout];
  faq.handoffs = [event, checkout];
  checkout.handoffs = [faq, event, hotels, flights, restaurants];

  return [greeter, event, faq, checkout, hotels, flights, restaurants];
};