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!
@arjuniyer SmartTests sound like a real boost for microservices teams. AI-powered way to cut down on all that 'dev toil' is super cool.
Big props to you and the team for tackling this! 🚀
Really impressive approach—catching contract violations without writing mocks or contracts saves tons of effort. Running side-by-side against real services and scoring diffs based on live traffic makes this feel like a smarter, safer CI step. This could seriously boost confidence when merging PRs.
Had no idea AI could be used this way in testing. Most of what I’ve seen until now was all about generating tests, not scoring actual traffic.
Was talking to a colleague last week about the exact issue this solves. Showed it to them today and they’re just as curious as me to try it on our dev branches.
Congratulations on the launch! 🚀 It looks like a real time-saver. Also it could be potentially be useful for sharing diffs with the UI team whenever there's some intentional change in API
Hey Arjun! SmartTests sounds like a game-changer for microservices teams. The burden of traditional contract testing definitely needs an innovative shake-up, and your AI-driven approach to reducing dev toil is very exciting. Kudos to you and the team for tackling this challenge! 🙌
Its AI learns from live traffic to smartly highlight relevant code changes, giving devs real confidence to merge without second-guessing. Truly a next-level testing boost!
Great work Arjun! SmartTests looks like a game-changer for dev teams working with microservices. You should consider listing it on Aixyz .Co — it’s free and helps more people discover innovative AI tools like yours. Keep it up!
Exactly in microservices team, even automated testing often gets pushed aside because of how resource intensive it is. If Signadot can solve these kinds of problems, that would be amazing! Congrats on the launch!
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.
Signadot SmartTests was featured in SaaS (41.6k followers), Developer Tools (511.1k followers) and Tech (621.7k followers) on Product Hunt. Together, these topics include over 267.9k products, making this a competitive space to launch in.
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.
Want to see how Signadot SmartTests stacked up against nearby launches in real time? Check out the live launch dashboard for upvote speed charts, proximity comparisons, and more analytics.
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!