Authorizations
Unkey uses API keys (root keys) for authentication. These keys authorize access to management operations in the API. To authenticate, include your root key in the Authorization header of each request:
Authorization: Bearer unkey_123
Root keys have specific permissions attached to them, controlling what operations they can perform. Key permissions follow a hierarchical structure with patterns like resource.resource_id.action
(e.g., apis.*.create_key
, apis.*.read_api
).
Security best practices:
- Keep root keys secure and never expose them in client-side code
- Use different root keys for different environments
- Rotate keys periodically, especially after team member departures
- Create keys with minimal necessary permissions following least privilege principle
- Monitor key usage with audit logs.
Body
The ID of the identity to update. Accepts either the externalId (your system-generated identifier) or the identityId (internal identifier returned by the identity service).
3
"user_123"
Replaces all existing metadata with this new metadata object. Omitting this field preserves existing metadata, while providing an empty object clears all metadata. Avoid storing sensitive data here as it's returned in verification responses. Large metadata objects increase verification latency and should stay under 10KB total size.
{
"name": "Alice Smith",
"email": "alice@example.com",
"plan": "premium"
}
Replaces all existing identity rate limits with this complete list of rate limits. Omitting this field preserves existing rate limits, while providing an empty array removes all rate limits. These limits are shared across all keys belonging to this identity, preventing abuse through multiple keys. Rate limit changes take effect immediately but may take up to 30 seconds to propagate across all regions.
50
[
{
"name": "requests",
"limit": 1000,
"duration": 3600000,
"autoApply": true
}
]
Response
Identity successfully updated