# Scalar

**Canonical:** https://apis.io/providers/scalar/  
**Website:** https://scalar.com/  
**APIs profiled:** 30

Scalar is an open-source API platform built around the OpenAPI standard. It provides API documentation (API References), an offline-first API client, a centralized API registry for managing OpenAPI documents, JSON schemas and Spectral rules, and automated SDK generation for TypeScript, Python, Go, PHP, Java, and Ruby. Used by teams at SmartBear, Microsoft ASP.NET, and 30+ framework ecosystems including Express, FastAPI, NestJS, and Spring Boot. The platform has 14.9k GitHub stars and is MIT licensed. Scalar is backed by a strong open-source community and positions itself as the modern, open alternative to Swagger UI and Postman.

## Kin Score — 39.5 / 100 (developing)

Scored 2026-08-20 under rubric 0.12.0. Trend: flat (+0.0 from 39.5).

| Facet | Score |
|---|---|
| Discoverability | 64.8 |
| Contract Quality | 54.7 |
| Governance | 25.0 |
| Contract Governance | 25.0 |
| Operational Transparency | 28.9 |
| Developer Ergonomics | 28.6 |
| Commercial Clarity | 34.2 |
| Access Clarity | 34.2 |

## Agent readiness — 39.4 (agent-ready)

| Dimension | Value |
|---|---|
| Spec Presence | yes |
| Agentic Access | derived |
| Reversibility Documented | documented |
| MCP Server | no |
| Auth Clarity | yes |
| Idempotency | no |
| Error Semantics | verified |
| OpenAPI Examples | documented |
| Rate Limit Signal | documented |
| Event Surface Described | no |
| Agent Skills | no |
| Well Known Catalog | no |
| Consent Identity | no |
| Agent Card | no |
| Dry Run Mode | no |

## Access

Freemium · Self-serve signup — onboarding: self-serve, pricing: freemium, trial: no (confidence: high).

## APIs (30)

- **Scalar API References** — Scalar API References renders modern, interactive API documentation from OpenAPI and Swagger specifications. Features include multiple themes, custom styling, dark mode, mobile ...
- **Scalar API Client** — Scalar API Client is a fully open-source, offline-first REST API client built on the OpenAPI standard. Supports collections, environments, pre/post-response scripting, test resu...
- **Scalar Docs** — Scalar Docs enables teams to create and publish developer documentation that stays in sync with their API and code. Supports writing with a WYSIWYG editor, pulling Markdown and ...
- **Scalar Registry** — Scalar Registry provides centralized management and versioning of OpenAPI Documents, JSON Schemas, and Spectral Rules with deep Git integration. Serves as the single source of t...
- **Scalar SDKs** — Scalar SDKs generates type-safe client libraries from OpenAPI specifications. Supported languages include TypeScript, Python, Golang, PHP, Java, and Ruby. Features include autom...
- **Scalar CLI** — The Scalar CLI is a command-line interface for managing OpenAPI files, generating documentation, running mock servers, validating specs, and publishing to the Scalar Registry. E...
- **Scalar access-groups API** — The access-groups API from Scalar — 5 operation(s) for access-groups.
- **Scalar analytics API** — The analytics API from Scalar — 4 operation(s) for analytics.
- **Scalar api-docs API** — The api-docs API from Scalar — 13 operation(s) for api-docs.
- **Scalar auth API** — The auth API from Scalar — 27 operation(s) for auth.
- **Scalar docs API** — The docs API from Scalar — 6 operation(s) for docs.
- **Scalar Docs Projects API** — The Docs Projects API from Scalar — 9 operation(s) for docs projects.
- **Scalar Forgejo API** — The Forgejo API from Scalar — 1 operation(s) for forgejo.
- **Scalar github API** — The github API from Scalar — 16 operation(s) for github.
- **Scalar Internal API** — The Internal API from Scalar — 1 operation(s) for internal.
- **Scalar login-portals API** — The login-portals API from Scalar — 3 operation(s) for login-portals.
- **Scalar payment API** — The payment API from Scalar — 6 operation(s) for payment.
- **Scalar publish API** — The publish API from Scalar — 11 operation(s) for publish.
- **Scalar pubsub API** — The pubsub API from Scalar — 7 operation(s) for pubsub.
- **Scalar rules API** — The rules API from Scalar — 6 operation(s) for rules.
- **Scalar schemas API** — The schemas API from Scalar — 7 operation(s) for schemas.
- **Scalar sdks API** — The sdks API from Scalar — 18 operation(s) for sdks.
- **Scalar share API** — The share API from Scalar — 1 operation(s) for share.
- **Scalar signup API** — The signup API from Scalar — 1 operation(s) for signup.
- **Scalar team API** — The team API from Scalar — 36 operation(s) for team.
- **Scalar themes API** — The themes API from Scalar — 4 operation(s) for themes.
- **Scalar utility API** — The utility API from Scalar — 3 operation(s) for utility.
- **Scalar vcs API** — The vcs API from Scalar — 6 operation(s) for vcs.
- **Scalar waitlist API** — The waitlist API from Scalar — 1 operation(s) for waitlist.
- **Scalar workspace API** — The workspace API from Scalar — 6 operation(s) for workspace.

## Agentic access (1)

- **Scalar Agentic Access** — 224 operations · 175 acting · 3 human-in-the-loop

## Security (4)

- **Scalar Authentication** — http · 1 scheme
- **Scalar Domain Security** — TLSv1.3 · DMARC
- **Scalar Vulnerability Disclosure** — disclosure policy published
- **Scalar Trust Center** — SOC 2, GDPR

## Plans (1)

- **Scalar Plans Pricing**

## Tags

API Client, API Documentation, API References, Code Generation, Developer Tools, OpenAPI, Registry, SDK, Swagger

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Profiled by [API Evangelist](https://apievangelist.com) and published on [APIs.io](https://apis.io/providers/scalar/). Scores are computed from the provider's own public artifacts under a published rubric.