# Auth0 API

**Provider:** Okta (Auth0)
**Category:** auth
**Base URL:** `https://{tenant}.auth0.com/api/v2`
**Auth:** oauth2 — `Authorization: Bearer Management_API_token`
**Rate Limit:** 50 requests/s (Management API)
**Free Tier:** Yes — [object Object]
**Pricing:** Free tier available (freemium)
**Docs:** https://auth0.com/docs/api

## Description

Auth0 provides identity as a service with support for every auth pattern: social logins (Google, GitHub, Apple), enterprise SSO (SAML, OIDC), passwordless, MFA, machine-to-machine (client credentials), and B2B multi-tenancy with Organizations. Integrates in minutes.

## Endpoints

| Method | Endpoint | Description |
|--------|----------|-------------|
| POST | `https://{tenant}.auth0.com/api/v2/oauth/token` | Get access token (multiple grant types) |
| GET | `https://{tenant}.auth0.com/api/v2/userinfo` | Get authenticated user info (OIDC) |
| GET | `https://{tenant}.auth0.com/api/v2/api/v2/users` | List and search users |
| POST | `https://{tenant}.auth0.com/api/v2/api/v2/users` | Create a user |
| PATCH | `https://{tenant}.auth0.com/api/v2/api/v2/users/{id}` | Update a user |
| POST | `https://{tenant}.auth0.com/api/v2/api/v2/users/{id}/roles` | Assign roles to a user |

## Authentication

Use OAuth 2.0/OIDC. For Management API actions, obtain a Management API token via the client credentials grant.

```
Authorization: Bearer Management_API_token
```

## Sample Request

```bash
# Get Management API token
curl -X POST https://$AUTH0_DOMAIN/oauth/token \
  -H "Content-Type: application/json" \
  -d '{
    "client_id": "'$AUTH0_CLIENT_ID'",
    "client_secret": "'$AUTH0_CLIENT_SECRET'",
    "audience": "https://'$AUTH0_DOMAIN'/api/v2/",
    "grant_type": "client_credentials"
  }'
```

## Sample Response

```json
{
  "access_token": "eyJhbGciOiJSUzI1NiIsInR5cCI6...",
  "expires_in": 86400,
  "token_type": "Bearer"
}

# Then list users:
GET /api/v2/users?page=0&per_page=50
→ [{"user_id":"auth0|abc123","email":"user@example.com","name":"Jane"}]
```

## Pricing Details

Free: 7,500 MAU. Essential: $23/mo (1k MAU). Professional: $240/mo (1k MAU + enterprise features). Enterprise: custom.

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*Source: [API Map](https://apimap.dev/apis/auth0/) — CC BY 4.0*