WorkOS API

WorkOS API turns enterprise must-haves (SSO, SAML, SCIM, Audit Logs, Directory Sync) into APIs — letting SaaS support enterprise SAML in hours.

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Use it when

Enterprise features integrate in hours (no SAML complexity needed)

Watch for

Only solves B2B SaaS enterprise auth piece (doesn't replace Clerk / Auth0 full user mgmt)

First check

Sign up at workos.com and create organization for API key. SSO flow: redirect user to /sso/authorize → callback receives profile.

Auth

api_key

CORS

HTTPS

Yes

Signup

Protocol

REST

Pricing

freemium

Uptime · 30-day window

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About this API

WorkOS is a B2B SaaS infrastructure company founded 2019, very specifically positioned: "let SaaS support enterprise customer SAML SSO in hours". Background: when B2B SaaS sells to enterprise customers, enterprise IT will demand SAML SSO (employees use company Okta / Azure AD to log into SaaS, not separate accounts). But SAML protocol is complex, every enterprise IdP configures differently, debugging is painful; traditional SaaS teams spend months hitting pitfalls. WorkOS bundles all this into APIs: your SaaS integrates WorkOS SDK, adds 5 lines of code, supports all major IdPs (Okta / Azure AD / Google Workspace / OneLogin). Companion products: SCIM directory sync (customer HR system auto-provisions / deprovisions users), Audit Logs (enterprise compliance), Magic Link, Admin Portal. Free 1M MAU SSO is industry-most-generous. Customers mainly SaaS companies expanding to enterprise market (Vercel, Linear, PlanetScale all use).

What you can build

1B2B SaaS adding enterprise SAML SSO support
2SCIM directory sync (customer HR system auto-syncs users)
3Audit logs required by enterprise customers
4Unified auth flow compatible with multiple IdPs

Strengths & limitations

Strengths

Enterprise features integrate in hours (no SAML complexity needed)
Free 1M MAU SSO (most generous)
Focuses on B2B SaaS pain points
Modern API design + excellent DX

Limitations

Only solves B2B SaaS enterprise auth piece (doesn't replace Clerk / Auth0 full user mgmt)
Some features require payment (Audit Logs / Magic Link add-ons)

Example request

Generic template — replace <endpoint> with the real path from the docs.

curl https://workos.com/<endpoint> \
  -H "Authorization: Bearer $API_KEY"
# Some providers use X-Api-Key instead — verify in the docs.

Getting started

Sign up at workos.com and create organization for API key. SSO flow: redirect user to /sso/authorize → callback receives profile.

FAQ

Does WorkOS replace Clerk / Auth0?+

No. WorkOS is B2B enhancement (SSO / SCIM / Audit). Basic auth (passwords / social login) still uses Clerk / self-built.

Why free 1M MAU SSO?+

Business model is "addon-paid" (Audit Logs / Magic Link paid). Free basic SSO as customer acquisition.

Technical details

CORS: ?HTTPS: YesSignup: ?Open source: No

Auth type: api_key
Pricing: freemium
Rate limit: 按 plan
Protocols: REST
SDKs: javascript, typescript, python, go, java, php, ruby