Stoplight
API design, documentation, and governance platform with OpenAPI support.
Overview
Stoplight is a aPI design, documentation, and governance platform with OpenAPI support. It handles api design, mock servers, style guides, and docs, and it's best suited for api teams wanting design-first api development. It has been around since 2015, giving it a 11-year head start in building out integrations and refining the product.
The free plan is free for 1 project — enough for most people to evaluate whether it fits. It works well for mid-size teams that need more structure than a basic tool but less overhead than enterprise platforms.
Strengths
- Includes API Design as a core feature, purpose-built for api development workflows
- Includes Mock Servers as a core feature, purpose-built for api development workflows
- Free for 1 project — generous enough for most small teams to get real work done
- Established product with 11+ years on the market and a mature ecosystem
Weaknesses
- Free plan exists but key features are locked behind the paid upgrade
- Developer-oriented tooling may not suit non-technical team members
- Ecosystem of third-party integrations is smaller than the market leaders in api development
- Mobile experience lags behind the desktop version in features and polish
Quick info
- Category
- API Development
- Starting price
- Free
- Free tier
- Yes — Free for 1 project
- Open source
- No
- Best for
- Mid-size teams
- Founded
- 2015
Last updated 2026-04-12
Quick comparisons
Stoplight vs Swagger →
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Stoplight comparisons
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