Building with Claude Code, Codex, or Antigravity? We built a hackathon for you! Season 3 signups are open: Build the Loop. Your agent writes the code; the open-source TestSprite CLI checks it against your live app. Write → verify → fix → verify. The loop you run is what you submit. $5,000 pool. $3,000 goes to the best projects over 7 days. The other $2,000 is a standing bounty: spot an improvement for our open-source CLI, open a PR, and we pay $100+ per merged PR. No deadline on that one. It runs till the pool's gone!

Your coding agent can run all night. It still can't tell if what it built actually works. Today we're open-sourcing the TestSprite CLl (Apache-2.0) A tool your agent calls on its own to test your app end-to-end like a real user, fix what broke, and re-check everything it ever got right. It's the same engine 100,000+ teams already use. github.com/TestSprite/testsp… We proved it in public, on a public leaderboard: Most correct app on the board:89% Built by the cheapest model in the field At half the cost of the priciest one You no longer need the biggest, most expensive model to ship software you can trust. Setup is 2 commands: npm install -g @testsprite/testsprite-cli testsprite init That's the last command you'll ever type - from there, your agent runs the tests itself.

TestSprite 3.0 is live. A fleet of parallel AI agents that use your app like real users — in minutes. This is the release we've been building all year. The numbers tell the story of our completely overhauled engine: - Accuracy jumped by nearly 40% on the hardest, most complex projects. - Coverage increased significantly across the board for every E2E run. - Reliability is locked in—stable and consistent across multiple runs. We rebuilt our entire engine around these performance gains so you can ship fast and ship confident.

TestSprite 2.1 is out. New to TestSprite? Here's a 3-min walkthrough of what it is and how to get started. 👇 What shipped in 2.1: → GitHub Integration — every PR auto-triggers your full test suite. Failures block the merge. → 4–5x faster testing engine → Visual Test Modification (MCP) The missing layer of the agentic dev workflow.

7 days. Your stack. AI to build & test. Let's go! 🏆 🛠️ The TestSprite Online Hackathon (Season 1) is your 7-day invitation to build something you're proud of, with AI-powered testing in your corner. $3,000 in prizes are up for grabs, but the real win? Showing the world what you can create when great tools meet great builders. Build in Public, share your progress, and cheer each other on. 👉 Official rules & how to join → link in the comments Build with AI. Test with TestSprite. 🚀 Pre-Registration starts now!