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SPECIFICTION
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APIMatic vs Fern

APIMatic

apimatic.io

Fern

buildwithfern.com

Side by side

FigureAPIMaticFern
Price from$99/moFree
Free planYesYes
Free trialYes—
Open source—Yes
WebYesYes
Windows—Yes
macOS—Yes
LinuxYesYes
APIYesYes
Self-hostedYesYes
Plans published42
Spec score · Code Generators9.5 (#1)9.0 (#2)
Spec score · Api Docs9.5 (#1)8.8 (#5)
AI toolsContext Plugins provide API context to coding tools including Cursor, Copilot, Claude Code, and Windsurf.Fern offers AI search, a writing agent, AI translations, an MCP server, and 250 AI credits on the Free plan.
AudienceAPIMatic describes its platform as serving organizations that provide APIs and want to support developers integrating them.both
IntegrationsAPIMatic documents integrations with GitHub, GitHub Actions, Jenkins, Microsoft Azure API Management, MuleSoft Anypoint, and Red Hat OpenShift.Listed integrations include PostHog, Google Analytics, Segment, Mixpanel, FullStory, Intercom, Postman, and Context7.
SDK languagesAPIMatic lists SDKs for TypeScript, Python, Go, Java, C#, PHP, and Ruby.SDK generation supports TypeScript, Python, Go, Java, C#, PHP, Ruby, Swift, and Rust.
Self hostingAPIMatic describes an on-premises option for generating API documentation and SDKs on the customer’s own infrastructure, with no data shared with APIMatic or third parties.Fern lists self-hosting as an Enterprise capability for deploying on dedicated infrastructure.
SSOEnterprise SSO supports SAML and OIDC, and is available to Enterprise customers.Yes
SupportAll paid plans have direct email support, while Business and Enterprise plans have dedicated specialists available through Slack, phone, and email.The Enterprise plan includes dedicated support and an uptime SLA.

Plans

APIMatic

  • FreeFree
  • Lite$99 a month
  • Business$1,000 a month
  • EnterprisePriced on request

APIMatic pricing →

Fern

  • FreeFree
  • EnterprisePriced on request

Fern pricing →

In their own words

APIMatic

APIMatic turns API contracts into SDKs, documentation, developer portals, code samples, Context Plugins, and MCP servers. Its specification-driven engine validates and transforms API definitions before generating interfaces for developers and AI systems. Supported specification formats include OpenAPI, RAML, Postman, API Blueprint, WSDL, Insomnia, and GraphQL Schema. Generated typed SDKs cover PHP, Ruby, Python, C#, Go, Java, and JavaScript/TypeScript.

Users can create or edit API definitions in the API editor or VS Code extension; the extension includes validation and linting with more than 1,200 built-in rules. Context Plugins provide API context to coding tools including Cursor, GitHub Copilot, Claude Code, and Windsurf. The CLI and Cloud APIs can automate SDK and portal generation in CI/CD workflows. Enterprise options include self-hosting the generation pipeline, SAML and OIDC SSO, concierge onboarding, and priority support with SLAs. APIMatic lists a free plan and a 14-day trial. Paid plans are listed from $10/mo; the Lite plan is $99 a month billed annually or $115/m billed monthly.

Visit apimatic.io

Fern

Fern has no write-up on Specifiction yet; its figures are above.

Visit buildwithfern.com