These tools integrates with

StoplightvsFern

Visual API design platform with linting, mocking, and docs built in versus OpenAPI in, idiomatic SDKs and API docs out

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Choose Stoplight when…

  • •You want a visual API design and documentation studio
  • •Design-first API development with mocking is your workflow
  • •You need collaborative API design for a team

Choose Fern when…

  • •You want type-safe SDKs and docs from your API spec
  • •You need SDKs in TypeScript, Python, Go, and more
  • •You want a Stripe-quality SDK without the manual work

Side-by-side comparison

Field
Stoplight
Fern
Category
Specifications
Specifications
Type
Commercial
Open Source
Free Tier
✓ Yes
✓ Yes
Pricing Plans
Starter: $49/moProfessional: $149/mo
Managed: Custom
GitHub Stars
—
⭐ 3,000
Health
—
●75 — Active

Stoplight

Design-first platform for creating, governing, and documenting OpenAPI specifications. Bundles a visual editor, Spectral (JSON/YAML linter), Prism (mock server), and Elements (docs renderer) into one workflow. Teams use it to enforce API style guides across large API portfolios.

Website ↗

Fern

Takes an OpenAPI spec and generates hand-crafted-quality SDKs across TypeScript, Python, Go, Java, Ruby, C#, and PHP, plus integrated documentation sites. SDKs and docs stay in sync from a single source of truth. Used by Cohere, ElevenLabs, and Merge.

Website ↗GitHub ↗

Shared Connections3 tools both integrate with

Swagger / OpenAPIRedoclySpeakeasy

Only Stoplight (1)

Fern

Only Fern (4)

StainlessOpenAPI GeneratorMintlifyStoplight

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