Now in Public Beta

Test Once, Deploy with Confidence

Syncc sits between your app and target APIs, simulating real-world edge cases to ensure your integrations are robust, reliable, and production-ready.

Trusted by innovative teams
Company 1 Company 2 Company 3 Company 4
Syncc dashboard showing API test scenarios

Why Choose Syncc?

Our middleware testing platform ensures your API integrations can handle anything thrown at them—from network timeouts to authentication challenges.

Advanced Error Simulation

Test how your application handles timeouts, server errors, and network issues before encountering them in production. Syncc can simulate any error scenario with precise control.

Learn more

Detailed Progress Tracking

Monitor your integration progress in real-time with comprehensive reporting on which scenarios you've successfully handled and which still need attention.

Learn more

Certification Ready

Get your integration certified and validated before connecting to production APIs, dramatically reducing support issues and ensuring compliance with partner requirements.

Learn more

Best Practice Enforcement

Ensure your code follows industry best practices for retries, authentication flows, and error handling. Syncc validates your implementation against established patterns.

Learn more

Zero Code Changes

Simply point your existing integration to our middleware endpoint – no complex setup or code changes required. Get started in minutes with minimal configuration.

Learn more

Multi-API Support

Connect to any API through Syncc and test multiple integrations within a single dashboard. Perfect for complex systems with numerous external dependencies.

Learn more

How Syncc Works

Our middleware sits between your application and target APIs, simulating real-world scenarios to ensure your integration is robust and production-ready.

1. Connect to Syncc

Instead of connecting directly to your target API, point your integration to Syncc's middleware endpoint (e.g., api.syncc.io/example_api/). This simple change requires no code modifications, just a configuration update.

1

2. Define Test Scenarios

Choose from our library of pre-built scenarios or create custom ones that simulate real-world edge cases like timeouts, expired tokens, server errors, and more. Each scenario is designed to test a specific aspect of your integration.

2

3. Run Your Integration

As your application interacts with Syncc, it will encounter the test scenarios you've defined. Syncc will monitor how your code responds to each challenge, recording successes and failures.

3

4. Track Progress

Monitor your integration's progress through our intuitive dashboard, which shows which scenarios have been successfully handled and which still need attention. Detailed logs help you diagnose and fix any issues.

4

5. Get Certified

Once all scenarios are successfully handled, your integration is certified as production-ready. You can now confidently connect directly to the real API, knowing your code can handle any situation it might encounter.

5

The Impact of Syncc

Join hundreds of teams that have transformed their API integration process

98%
Reduction in production incidents
87%
Faster time to production
5x
Increase in integration robustness
500+
Successful integrations

See Syncc in Action

Here's how easily you can test your API's retry mechanism with just a few lines of code

Testing Retry Logic

This example shows how Syncc simulates a timeout error to test if your client properly implements retry logic with exponential backoff:

  • Your client sends a request to the Syncc middleware
  • Syncc intentionally responds with a 504 Gateway Timeout
  • Your client should retry the request with increasing delays
  • After the expected number of retries, Syncc forwards the request to the actual API
  • Syncc marks the retry test scenario as successful in your dashboard
// Client-side example (JavaScript)
const apiCall = async () => {
  const maxRetries = 3;
  let retries = 0;
  
  while (retries < maxRetries) {
    try {
      const response = await fetch(
        'https://api.syncc.io/example_api/transaction',
        {
          method: 'PUT',
          body: JSON.stringify(payload),
          headers: { 'Content-Type': 'application/json' }
        }
      );
      
      if (response.status === 504) {
        retries++;
        await delay(1000 * Math.pow(2, retries)); // Exponential backoff
        continue;
      }
      
      return await response.json();
    } catch (error) {
      retries++;
      if (retries >= maxRetries) throw error;
      await delay(1000 * Math.pow(2, retries));
    }
  }
};

// Check scenario progress
const checkProgress = async () => {
  const response = await fetch(
    'https://api.syncc.io/track'
  );
  const progress = await response.json();
  console.log(progress);
};

What Our Users Say

Developers and engineering teams love how Syncc transforms their integration process

"Syncc has completely transformed how we approach API integrations. Before, we'd spend weeks debugging edge cases in production. Now, we catch everything during development. It's like having a QA team dedicated to our integrations."
Sarah Chen

Sarah Chen

Lead Developer, FinTech Solutions

"The certification feature is a game-changer for us. We can now prove to our clients that our integrations meet their requirements before we even request production access. Implementation time has decreased by 60%."
Marcus Johnson

Marcus Johnson

CTO, CloudPay

"Setting up Syncc took less than an hour, and it immediately caught three critical bugs in our API client that would have caused major issues in production. The ROI is incredible."
Elena Rodriguez

Elena Rodriguez

Senior Engineer, HealthTech Inc

Simple, Transparent Pricing

Choose the plan that fits your integration needs

Ready to Build Rock-Solid Integrations?

Start testing your API integrations today and ensure they're production-ready. Free tier available with no credit card required.