List key assignments for a guardrail | OpenRouter

List all API key assignments for a specific guardrail. Management key required.

AuthorizationBearer

API key as bearer token in Authorization header

idstringRequiredformat: "uuid"

The unique identifier of the guardrail

offsetintegerOptional>=0

Number of records to skip for pagination

limitintegerOptional1-100

Maximum number of records to return (max 100)

List of key assignments

datalist of objects

List of key assignments

total_countinteger

Total number of key assignments for this guardrail

401

Unauthorized Error

404

Not Found Error

500

Internal Server Error

1	{
2	"data": [
3	{
4	"assigned_by": "user_abc123",
5	"created_at": "2025-08-24T10:30:00Z",
6	"guardrail_id": "550e8400-e29b-41d4-a716-446655440001",
7	"id": "550e8400-e29b-41d4-a716-446655440000",
8	"key_hash": "c56454edb818d6b14bc0d61c46025f1450b0f4012d12304ab40aacb519fcbc93",
9	"key_label": "prod-key",
10	"key_name": "Production Key"
11	}
12	],
13	"total_count": 1
14	}

$	curl https://openrouter.ai/api/v1/guardrails/550e8400-e29b-41d4-a716-446655440000/assignments/keys \
>	-H "Authorization: Bearer <token>"