Choose SmartTests over Pact for zero-maintenance contract testing

No contract maintenance required

Test with real dependencies in Kubernetes

Agents ingest results and self-correct without human involvement

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Signadot SmartTests results for a pull request sandbox

Trusted by engineering teams worldwide

Pact requires constant maintenance as your APIs evolve. SmartTests eliminates this burden entirely.

Traditional contract testing tools like Pact were built for a different era. As your microservices grow and APIs evolve rapidly, the maintenance overhead becomes a bottleneck that slows down development rather than enabling it.

Use cases and capabilities

SmartTests vs. Pact

SmartTests

AI-Powered Validation for Developers and Agents

Reality-based testing with real dependencies

Contract Testing

AI automatically detects breaking changes without explicit contracts. Agents can ingest results to self-correct without human involvement.

Zero Maintenance

Tests adapt to API changes automatically

Kubernetes-Native

Built specifically for cloud-native microservices

Pact

Mock-Based Testing Focus

Consumer-driven contract definitions

Contract Testing

Manual contract definitions between consumers and providers

Contracts need constant updates as APIs evolve. Requires mock services for all dependencies. Not optimized for Kubernetes.

SmartTests offers a fundamentally different approach to contract testing - using AI to detect breaking changes in real environments rather than maintaining complex mock-based contracts that quickly become outdated.

Test Real APIs, Not Mocks

From web to mobile frontends, generate on-demand previews that let your team test earlier and deploy with confidence.

AI Finds What Matters

Don't waste time waiting. Signadot delivers previews in seconds while competitors take minutes, keeping your engineering velocity high.

Zero Contract Maintenance

Testing across pull requests without duplicating environments cuts down cloud costs dramatically.

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Testimonials

Hear from our clients

On the margin, with the Signadot approach, 99.8% of the isolated environment's infrastructure costs look wasteful. That percentage looks like an exaggeration, but it's really not.

Connor Braa

Software Engineering Manager

With Neon's rapid growth, maintaining key DORA metrics and production SLO became a challenge. Signadot's Sandboxes solution transformed our CI/CD pipelines, reducing costs and enabling effective testing. Now, we can confidently make risky changes, fostering a culture of performance-oriented engineering.

Venkat Karun

Distinguished Engineer and Sócio

I want staging to be in a state where I'm able to push to production any day I want. The quality should be as good as prod so that I don't have to do more work after merging. This is exactly what Signadot allows us to do today. We're now running tests before merging, which means cleaner code and fewer rollbacks.

Buchi Reddy

CEO

See how we compare

From API changes to breaking change detection in minutes. Our AI-powered workflow automatically identifies contract violations while you focus on development - no mock maintenance required.

Feature

SmartTests

Pact

Testing Approach

AI-powered API diffing with real services

Consumer-driven contracts with mocks

Maintenance

Zero - tests auto-adapt

High - contracts need constant updates

Test Environment

Real dependencies in Kubernetes sandboxes

Mock services and providers

Setup Complexity

Minutes with simple HTTP requests

Days/weeks with detailed contract specs

Team Coordination

Minimal - no contract exchange needed

Significant - consumer/provider coordination

Breaking Change Detection

AI identifies meaningful changes automatically

Manual definition of what breaks

Future Roadmap

Performance, security, log testing planned

Focused on contract testing only

The bottleneck has shifted from writing code to proving it works.

Agentic development only delivers value when code generation velocity converts into shipped product. Signadot provides the validation infrastructure to make that conversion happen: virtualized environments that spin up in seconds and a composable validation framework that makes feedback fast, isolated, and reproducible at enterprise scale.

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Built for Developers and Agents

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Try free

Integrate with CI tools you already use

Support all test frameworks

Without Signadot, developers were experiencing frequent rollbacks of code due to issues discovered late in the staging environment. Now, the developers have much more confidence in what they are deploying, resulting in fewer breaks on production.

Devarshi Khanna

Backend Developer at ShareChat

How is Signadot different from other testing solutions?

Unlike traditional approaches that create full duplicate environments, Signadot uses a unique request-routing approach that allows you to test changes in isolation while sharing existing infrastructure. This results in up to 90% cost savings while delivering significantly faster feedback cycles.

How does Signadot integrate with my CI/CD pipeline?

Signadot provides a CLI and API that integrates with all popular CI/CD systems including GitHub Actions, Jenkins, CircleCI, and GitLab. Our integration creates sandboxes for each pull request, runs tests, and reports results back to your pull request, providing complete visibility into test outcomes.

What testing frameworks does Signadot support?

Signadot works with any testing framework you currently use, including Cypress, Selenium, Playwright, Postman, RestAssured, JUnit, pytest, and more. There's no need to rewrite your tests - just point them at your sandbox environments using our routing mechanisms.

Do I need to modify my applications to use Signadot?

No code changes are required to your applications. Signadot works at the network layer by intercepting requests and routing them to the appropriate services. We provide tools like our Chrome extension, SDK, and CLI to make it easy to manage routing without modifying your application code.

How long does it take to set up Signadot?

Most teams are up and running with Signadot in less than a day. Installation involves deploying our Kubernetes operator to your cluster and configuring your CI/CD pipeline to create sandboxes. Our team provides hands-on support to ensure a smooth onboarding experience.

Does Signadot support coding agents?

Yes. Signadot's MCP server lets coding agents (including Cursor, Claude Code, and VSCode) provision sandboxes, run tests, and verify changes autonomously. This turns agents from code generators into autonomous engineers that can validate their own work in a closed feedback loop.

Can Signadot work with our service mesh?

Yes, Signadot integrates with popular service meshes like Istio, Linkerd, and Consul. We can leverage your existing service mesh for routing or use our built-in routing mechanisms if you don't have a service mesh. Our approach is designed to be flexible and work with your existing infrastructure.

Validate code as fast as agents write it. Cut environment costs by 90%.

Explore how Signadot helps engineering teams validate code at the speed agents generate it, with cost-efficient parallel validation on your existing Kubernetes infrastructure.

Book a demo