A small hosted identity API for web and mobile apps. Drop-in sign-in links, OAuth 2.0 / OIDC, and audit logs — without running your own user database.
Email and WebAuthn passkeys out of the box. No password resets, no credential stuffing.
Standards-compliant authorization server with PKCE, refresh tokens and scoped access.
Every sign-in, token grant and settings change is recorded and exportable via API.
Exchange a sign-in link for a session token in one request.
POST /v1/token HTTP/1.1 Host: api.sirauth.com Content-Type: application/json { "grant_type": "urn:sirauth:email-link", "link_id": "sl_9f2a..." } # → 200 OK { "access_token": "sat_2Kq8...", "token_type": "Bearer", "expires_in": 3600, "scope": "openid profile" }
Billed monthly, cancel anytime.
| Plan | Monthly active users | Price |
|---|---|---|
| Hobby | up to 5,000 | Free |
| Pro | up to 50,000 | $29 / month |
| Business | unlimited, SSO + SLA | Contact us |
All systems operational
| Component | Status |
|---|---|
| Authentication API | Operational |
| Email delivery | Operational |
| Dashboard | Operational |
| Uptime (90 days) | 99.98% |
| API continuously up for | — |