Mocktail
Free, open-source mock API server with a built-in dashboard
Details
- External ID
- 49304062
- Source
- HN
- Company
- —
- Product
- Mocktail
- Website domain
- getmocktail.com
- Launched
- Aug. 14, 2026
- Cohort
- —
- Upvotes
- 25
- Upvotes percentile
- 0.7869623655913979
- Tags
- —
- Fetched at
- Sept. 10, 2026, 5:32 a.m.
- Updated at
- Sept. 10, 2026, 5:32 a.m.
Description
Hi HN, I built the first version of Mocktail years ago. I recently came back to the project, and after a pretty substantial rebuild, v4 is now out.Mocktail is a free and open-source, self-hosted mock API server with a built-in dashboard and database, packaged as a single ~25 MB binary. You can run it locally or on your own infrastructure — no account or hosted service required.You can define endpoints and responses, generate realistic data per request, customize headers, status codes and latency, and inspect incoming requests in real time.With v4, I also added MCP support, so coding agents can create and manage mocks directly, along with an optional built-in AI assistant using your own API key. Both are completely optional.It’s been fun coming back to something I built years ago and bringing it up to date. I’d love to hear what you think, especially anything you’d change or add.
Enrichment
- Theme
- Vertical
- Horizontal
- Function
- Dev tools
- Audience
- Developer
- AI stance
- Not AI
- Project type
- Hobby / open-source project
- Normalized one-liner
- mock api server for testing
- Manually corrected
- False
Could you build this?
Yes It is a self-hosted mock API server with a web UI and SQLite database that lets users define endpoints and mock data, easily vibe-codeable using Go or Node.js.
Discussion
1 comment analyzed.
Competitors
Other products that read as similar to this one — 46 launches clear the similarity bar, closest 8 shown.
Attention rank: #9 of 47 (itself plus its competitors, highest first — normalized so YC and Product Hunt are compared fairly).
Launched 283 days after the earliest competitor.
- MockJSON API · ph · 2026-09-29 · 1 upvotes · similarity 0.56
- MockAgent · ph · 2026-09-30 · 1 upvotes · similarity 0.48
- Free Mock Data Generator for Developers · ph · 2026-09-09 · 1 upvotes · similarity 0.48
- Mock and Match · ph · 2026-09-29 · 2 upvotes · similarity 0.45
- ChunkBack · hn · 2025-11-19 · 6 upvotes · similarity 0.44
- Mock2Block · ph · 2026-09-08 · 1 upvotes · similarity 0.44
- Suites · hn · 2025-11-04 · 19 upvotes · similarity 0.42
- MockVerse · ph · 2026-09-15 · 2 upvotes · similarity 0.41
Other launches for this product
- No other launches for this product.
Same idea, different domain
Nobody's really built a dev tools tool for Sales yet.