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InstantMock API CLI Pro

Fast zero-dependency local JSON mock server in Python

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Fast, 100% offline local JSON mock server built in pure Python with zero dependencies. Features 1-click automated launchers (start.bat & start.sh), pre-configured domain datasets, unit tests, latency simulation (?_delay), and error forcing (?_status=500). Pay once, lifetime access!

PH · launched Nov 7, 2026 · 2 upvotes (top 18%) · 0 views

Niche: api testing and mocking tools · 77 launches, 8 in the last 7 days ▼ -27% · Explore this niche →

Category and tags

  • Horizontal
  • Dev tools
  • Developer
  • Not AI
  • Commercial product
  • API
  • Open Source
  • Developer Tools

Visit website ↗ Source listing ↗

Could you build this?

Yes A zero-dependency Python mock server with JSON datasets, delay and error query parameters, and launcher scripts is a small, well-scoped CLI project.

Competitors

Other products that read as similar to this one : 156 launches clear the similarity bar, closest 8 shown.

Attention rank: #25 of 157 (itself plus its competitors, highest first, normalized so YC and Product Hunt are compared fairly).

Launched 368 days after the earliest competitor.

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.