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Turn real API traffic into a local sandbox and OpenAPI. Tiny static Go binary, any HTTP SDK, offline development, MIT.
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GITHUB · launched Nov 4, 2026 · 54 upvotes (top 59%) · 0 views
Niche: api testing and mocking tools · 85 launches, 7 in the last 7 days ▼ -22% · Explore this niche →
Category and tags
- Horizontal
- Dev tools
- Developer
- Not AI
- Hobby / open-source project
- api
- contract-testing
- differential-testing
- go
- local-first
- mit
- +1 more
Visit website ↗ Source listing ↗
More like this: all 85 launches in api testing and mocking tools →
Could you build this?
Yes The tool is a local HTTP proxy that records API traffic to a file, replays it through a local server, and exports OpenAPI. Those pieces are well-understood and can be built in Go with standard libraries plus schema inference.
Competitors
Other products that read as similar to this one : 562 launches clear the similarity bar, closest 8 shown.
Attention rank: #316 of 563 (itself plus its competitors, highest first, normalized so YC and Product Hunt are compared fairly).
Launched 371 days after the earliest competitor.
- Simulate API traffic directly from your IDE with .http files · hn · 2026-07-02 · 6 upvotes · similarity 0.54
- Blast · hn · 2026-08-28 · 11 upvotes · similarity 0.49
- gozarbin · github · 2026-09-16 · 9 upvotes · similarity 0.48
- Rust HTTP library modeled after Go but 2-3x faster · hn · 2026-04-04 · 5 upvotes · similarity 0.47
- Turbo · hn · 2026-07-08 · 8 upvotes · similarity 0.46
- Gottp · hn · 2026-02-11 · 5 upvotes · similarity 0.45
- Decoy · hn · 2026-02-26 · 7 upvotes · similarity 0.45
- Declick · hn · 2026-09-04 · 8 upvotes · similarity 0.44
The niche, labels, vibe code rating and competitor comparison on this page are analysis by Nicheloom. If you use them, please credit nicheloom.com. How you may use our data.