# Better Auth

**Canonical:** https://apis.io/providers/better-auth/  
**Website:** https://www.better-auth.com/  
**APIs profiled:** 4

Better Auth is a framework-agnostic authentication and authorization library for TypeScript. Unlike hosted identity providers, Better Auth runs inside the developer's own application against their own database (Postgres, MySQL, SQLite, MongoDB via adapters). The core library supports credential, social, magic-link, OTP, passkey, and SSO sign-in, with plugins for organizations / teams / RBAC, API keys, two-factor authentication, JWT, generic OAuth, SAML / SSO, and SCIM. It integrates with Next.js, Nuxt, SvelteKit, Astro, Hono, and 20+ other frameworks. An optional managed dashboard with audit logs, breached-password detection, bot-protection, and self-service enterprise SSO is available at dash.better-auth.com.

## Kin Score — 20.9 / 100 (emerging)

Scored 2026-08-20 under rubric 0.12.0. Trend: flat (+0.0 from 20.9).

| Facet | Score |
|---|---|
| Discoverability | 74.1 |
| Contract Quality | 0.0 |
| Governance | 0.0 |
| Contract Governance | 0.0 |
| Operational Transparency | 52.6 |
| Developer Ergonomics | 16.7 |
| Commercial Clarity | 28.9 |
| Access Clarity | 28.9 |

Regulatory layer — **Education & Research**: 11.1 (matched via tags).

## Agent readiness — 3.0 (human-only)

| Dimension | Value |
|---|---|
| Spec Presence | no |
| Agentic Access | no |
| Reversibility Documented | no |
| MCP Server | no |
| Auth Clarity | no |
| Idempotency | no |
| Error Semantics | no |
| OpenAPI Examples | no |
| 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

Free — onboarding: unknown, pricing: free, trial: no (confidence: medium).

## APIs (4)

- **Better Auth Library** — Core TypeScript library distributed as the `better-auth` npm package. Configured in the application backend to expose sign-in / sign-up / session endpoints that the developer mo...
- **Better Auth CLI** — Project initialization and schema-migration CLI invoked with `npx @better-auth/cli` (or `npx auth init`). Generates database schema, configures the auth route handler, and scaff...
- **Better Auth Plugins** — First-party plugin ecosystem covering two-factor authentication, passkeys, magic link, organizations and teams, API keys, generic OAuth, JWT, OpenAPI, admin, and SSO (SAML / OID...
- **Better Auth Dashboard (Managed)** — Optional managed dashboard at dash.better-auth.com. Adds user management UI, audit logs, security signals (breached-password lookups, bot protection, brute-force detection), and...

## Security (1)

- **Better Auth Domain Security** — TLSv1.3 · HSTS · DNSSEC · DMARC

## Plans (1)

- **Better Auth Plans Pricing**

## Tags

Authentication, Authorization, TypeScript, Library, Open-Source, SSO, Passkeys

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