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Fern vs Joi

Fern: Generate SDKs, API docs and a CLI from an OpenAPI spec Joi: Schema description and validation library for JavaScript objects

Comparison of Fern, Joi
Fern
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Joi
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CategoryDesign and SDKsDesign and SDKs
PricingFreemiumOpen source
Best for
  • API teams
  • SDK teams
  • Developer relations
  • JavaScript developers
  • Backend teams
  • API developers
Highlights
  • Host API docs with search, a reference and a changelog
  • Generate type-safe SDKs in many languages
  • Start from an OpenAPI spec
  • Check data with more than 150 built-in validators
  • Set rules that depend on other fields
  • Create schema variants for create and update flows
GitHub stars3.8k21.2k
Last update2 days ago4 days ago

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