Fern vs Mendable vs Mintlify vs Speakeasy
A side-by-side look at scores, pricing and features — with RECATOOLS' ASEAN-aware verdict for each.
Fern
Input OpenAPI. Output production-ready SDKs and beautiful API docs — a...
Visit
|
Mendable
AI chat search for product docs — Firecrawl's quieter sibling
Visit
|
Mintlify
AI-powered developer documentation
Visit
|
Speakeasy
OpenAPI to SDKs and MCP servers - now pitching an AI control plane.
Visit
|
|
|---|---|---|---|---|
| RECATOOLS Score | 8.4 / 10 | 7.2 / 10 | 7.7 / 10 | 8.2 / 10 |
| Capability | ||||
| Value for money | ||||
| Ease of use | ||||
| ASEAN readiness | ||||
| API quality | ||||
| Pricing | Freemium | Freemium | Subscription | Freemium |
| Free tier | Hobby plan: free forever, 2 members, 250 AI credits, custom domain | — | — | 1 language, up to 250 API operations, SDK and MCP generation included |
| Paid from | Docs Team from $150/mo (annual saves ~25%); SDK generation priced separately; Enterprise custom | — | — | $720/month per language (Business); Enterprise custom pricing |
| Has API | ✓ | ✓ | ✓ | ✓ |
| Open source | ✓ | ✗ | ✗ | ✗ |
| Free to use | ✓ | ✓ | ✗ | ✓ |
| Users | Used by companies including Square and Adobe; distributed via Postman post-acquisition | — | — | ~3,000 users; 7,250+ SDKs generated as of late 2024 |
| Founded | 2022 | 2023 | 2022 | 2022 |
| Maker | Postman | — | — | Speakeasy (independent, Series A-backed) |
| Verdict | Nordic APIs picked Fern as the best of eight SDK generators it tested in 2025, and the reasoning holds up: the output reads like a senior engineer wrote it by hand, not a template. The open-source core (Apache 2.0, 3.7k... |
Mendable does one thing: point it at your docs, GitHub repo, Notion, or support history, and it trains a chat widget that answers technical questions directly instead of returning a list of search results. Early customer... |
Mintlify is a popular AI-native documentation platform that turns Markdown/MDX into polished, fast developer docs with strong defaults, built-in search, AI-powered doc chat, and Git-based workflows. For startups and dev-... |
Speakeasy remains one of the strongest choices for API-first teams needing production-grade, polyglot SDKs without maintaining ten separate codebases - no proprietary DSL, no vendor lock-in, and a CLI that runs fully air... |
| Full review → | Full review → | Full review → | Full review → |
Comparisons cover up to 4 tools. Scores are RECATOOLS editorial assessments; verify current pricing on each vendor's site.