Catch contract violations on every Pull Request without writing contracts or mocks. SmartTests runs your code against real services side-by-side, AI learns from live traffic and intelligently scores diffs for relevancy. Pure confidence to merge code.
👋 Hey Product Hunt Fam! I'm Arjun, co-founder of Signadot. Excited to introduce SmartTests—a new way to catch API breaking changes without maintaining traditional contracts!
📜 Why we built SmartTests
After talking to hundreds of engineering teams, we discovered something surprising: automated testing was an afterthought for most microservices teams.
Many had looked into contract testing but adoption was shockingly low. The problem? Traditional approaches put all the burden on developers—writing contracts, maintaining mocks, integrating with CI systems. Too much toil.
We decided to flip this: what if AI could handle the heavy lifting? SmartTests automatically detect breaking API changes by comparing real traffic—no contracts or mocks to maintain.
🧐 The problem with traditional contract testing
Current approaches create development friction:
- Manual contract maintenance that's time-consuming and goes stale quickly
- Mock-based testing that misses real-world issues
- Team coordination overhead that slows everyone down
🤯 How SmartTests work differently SmartTests compare real API responses between your current and new code versions running side-by-side. AI-powered analysis spots only the changes that actually matter.
✅ Simple tests in Starlark - focus on critical API calls, not contract files
✅ Smart AI diffs - highlights meaningful changes, reduces noise
✅ Runs on Pull Requests - fast feedback before merging code
🥰 Try it out!
1. Sign up free - create your first SmartTest in under 2 minutes!
2. 20% off our Team plan for a whole year for PH users ❤️ - email us at [email protected]
What questions do you have about testing microservices? Would love to hear your thoughts!
About Signadot SmartTests on Product Hunt
“AI Powered Contract Testing”
Signadot SmartTests launched on Product Hunt on May 29th, 2025 and earned 107 upvotes and 18 comments, placing #21 on the daily leaderboard. Catch contract violations on every Pull Request without writing contracts or mocks. SmartTests runs your code against real services side-by-side, AI learns from live traffic and intelligently scores diffs for relevancy. Pure confidence to merge code.
On the analytics side, Signadot SmartTests competes within SaaS, Developer Tools and Tech — topics that collectively have 1.2M followers on Product Hunt. The dashboard above tracks how Signadot SmartTests performed against the three products that launched closest to it on the same day.
Who hunted Signadot SmartTests?
Signadot SmartTests was hunted by Arjun Iyer. A “hunter” on Product Hunt is the community member who submits a product to the platform — uploading the images, the link, and tagging the makers behind it. Hunters typically write the first comment explaining why a product is worth attention, and their followers are notified the moment they post. Around 79% of featured launches on Product Hunt are self-hunted by their makers, but a well-known hunter still acts as a signal of quality to the rest of the community. See the full all-time top hunters leaderboard to discover who is shaping the Product Hunt ecosystem.
Arjun Iyer
Huge thanks to @garrytan and @ycombinator for the hunt! 🙏
👋 Hey Product Hunt Fam! I'm Arjun, co-founder of Signadot. Excited to introduce SmartTests—a new way to catch API breaking changes without maintaining traditional contracts!
📜 Why we built SmartTests
After talking to hundreds of engineering teams, we discovered something surprising: automated testing was an afterthought for most microservices teams.
Many had looked into contract testing but adoption was shockingly low. The problem? Traditional approaches put all the burden on developers—writing contracts, maintaining mocks, integrating with CI systems. Too much toil.
We decided to flip this: what if AI could handle the heavy lifting? SmartTests automatically detect breaking API changes by comparing real traffic—no contracts or mocks to maintain.
🧐 The problem with traditional contract testing
Current approaches create development friction:
- Manual contract maintenance that's time-consuming and goes stale quickly
- Mock-based testing that misses real-world issues
- Team coordination overhead that slows everyone down
🤯 How SmartTests work differently
SmartTests compare real API responses between your current and new code versions running side-by-side. AI-powered analysis spots only the changes that actually matter.
✅ Simple tests in Starlark - focus on critical API calls, not contract files
✅ Smart AI diffs - highlights meaningful changes, reduces noise
✅ Runs on Pull Requests - fast feedback before merging code
🥰 Try it out!
1. Sign up free - create your first SmartTest in under 2 minutes!
2. 20% off our Team plan for a whole year for PH users ❤️ - email us at [email protected]
What questions do you have about testing microservices? Would love to hear your thoughts!