Palt

Palt is a hosted platform for creating and publishing interactive API documentation from OpenAPI specifications. Users can upload OpenAPI or Swagger JSON and YAML files, with support for OpenAPI 3.0 and later. Its browser-based Try It console lets readers test API endpoints, while generated code examples include cURL, JavaScript, Python, Go, and more. Documentation can be shared on a custom domain or embedded in an existing site. Custom domains are free for everyone and include automatic SSL. A visual editor supports custom colors, fonts, dark mode, HTTP-method colors, and company logos; endpoint search includes keyboard shortcuts. The Free plan costs nothing and lists three projects, a custom domain, the Try It playground, and basic analytics. Pro costs $19 a month per project and adds branding removal, custom CSS, advanced analytics, and priority support. Enterprise pricing is custom and includes SSO, audit logs, an SLA guarantee, and dedicated support. Users retain ownership of their uploaded API specifications, documentation, and branding assets. Palt says it does not store API keys or sensitive request data, and describes encryption in transit and at rest, security assessments, and access controls.

Palt combines OpenAPI imports, interactive endpoint testing, and custom-domain publishing. The Free plan covers three projects, while Pro is billed per project and Enterprise has custom pricing.

Palt suits people creating API reference documentation from OpenAPI specifications who want interactive endpoint testing and custom-domain publishing. Enterprise support includes dedicated support and SSO.

Overview

Palt turns OpenAPI specifications into hosted, interactive API documentation for developers and teams publishing an API reference. It is a strong fit for small projects that need browser-based endpoint testing and a custom-domain site without a separate hosting setup. The main trade-off is that branding removal and advanced analytics start at Pro, while enterprise controls require a custom-priced plan.

Key features

Upload OpenAPI or Swagger JSON or YAML files, with support for OpenAPI 3.0 and later. The Try It console lets readers test endpoints in a browser, and generated cURL, JavaScript, Python, Go, and other code examples give them a useful starting point for requests. This makes Palt particularly suited to interactive API references rather than broad documentation needs.

Published docs can live on a custom domain or be embedded in an existing site. Custom domains and automatic SSL are free on every plan, a practical advantage for teams that want a branded URL without paying extra for it. The visual editor includes custom colors, fonts, dark mode, HTTP-method colors, and company logos, but Pro is needed to remove Palt branding and use custom CSS.

Fast endpoint search and keyboard shortcuts help readers find routes in a reference. Palt says it does not store API keys or sensitive request data; its proxy relays requests to API endpoints for CORS compatibility. Its privacy policy describes encryption in transit and at rest, regular security assessments, and access controls. Users retain ownership of uploaded specifications, documentation, and branding assets.

Pricing

The Free plan costs nothing, billed $0/month, and includes three projects, a custom domain, the Try It playground, and basic analytics. It is a credible starting point for a small set of APIs, but the three-project cap and basic analytics may constrain a growing documentation program.

Pro costs $19 a month, billed $19/project/mo. It includes everything in Free, removes Palt branding, adds custom CSS and advanced analytics, and provides priority support. Because billing is per project, costs rise with each project rather than staying at a single flat subscription; it makes most sense when branded presentation or deeper analytics justify that added spend.

Enterprise has custom pricing and includes everything in Pro plus SSO (SAML, OIDC), audit logs, an SLA guarantee, and dedicated support. Those controls target organizations with access-management and service commitments beyond the needs of a small API publisher. Paid subscriptions are billed in advance and are non-refundable except where required by law. Signup can start without a credit card.

Platforms

Palt is a hosted web product, so teams can publish and manage documentation through the browser without deploying a self-hosted instance.

Who it's for

Palt suits API publishers who have OpenAPI specifications and want an interactive reference with endpoint testing, generated examples, and custom-domain publishing. Teams with only a few projects can begin on Free; those needing white-label presentation or advanced analytics should weigh Pro's per-project billing. Organizations needing SSO, audit logs, an SLA, or dedicated support are better aligned with Enterprise.

Pros and cons

• Pros: Free custom domains and automatic SSL let even small teams publish under their own domain without a domain-related upgrade.
• Pros: Browser-based endpoint testing and generated examples bring practical interaction directly into the API reference.
• Pros: Users retain ownership of their documentation assets, and Palt describes safeguards including encryption and access controls.
• Cons: Free is capped at three projects and offers only basic analytics, limiting room for a larger catalog or deeper insight without upgrading.
• Cons: Pro is billed per project, so the advertised $19/project/mo can compound as a team adds APIs.
• Cons: Removing Palt branding and adding custom CSS require Pro, even though custom domains are free on Free.

Alternatives

API Documentation Tools is the broader category directory for comparing options. Choose PilotDocs if its $49/month Starter plan, with 10 projects and unlimited API endpoints, better matches a larger project portfolio. Scalar is worth considering if you need its listed API, desktop, and self-hosted platform options; its Free plan covers up to three APIs, one SDK up to 25 endpoints, and one editor seat. For a free plan with public and private project allowances and up to 20 team members, consider Theneo. TypeDoc is a free, open-source documentation generator for TypeScript projects, a different fit from Palt's OpenAPI-based workflow. Apiary may suit teams looking for a free tier with unlimited API projects and up to five participants per project, though projects are public and there is no team. ApiNotes is an option for teams focused on API changelogs and validator or diff tools; its free Starter plan allows one public API, a 10-release changelog, and one team member. Endrel offers a free Sandbox with one workspace and three projects per workspace, but its plan has no live API testing. Fern is another freemium option, with a Free plan that includes one site and up to 1,000 pages.

Verdict

Choose Palt if you want hosted OpenAPI documentation that readers can test in the browser, and you value custom-domain publishing without a domain surcharge. Its free three-project tier is a sensible starting point, but growing teams should account for Pro's per-project billing, and organizations that need stronger administration should look to Enterprise or elsewhere.