---
title: Retrieve a guardrail
url: https://runapi.ai/docs/api/management/guardrails/retrieve.md
canonical: https://runapi.ai/docs/api/management/guardrails/retrieve
locale: en
---

# Retrieve a guardrail

Retrieve one active guardrail by prefix ID.

## Endpoint

GET /api/v1/guardrails/:id

Base URL: https://runapi.ai

API version: v1

Authentication: Authorization: Bearer YOUR_MANAGEMENT_API_KEY


Authorization: Requires an account-admin Management API key.

## Request

Send values only in the listed request location.

### Path parameters

```json
{
  "id": {
    "description": "Guardrail prefix ID, for example guardrail_abc123.",
    "required": true,
    "type": "string"
  }
}
```

## Success response

HTTP 200 - GET /api/v1/guardrails/:id

```json
{
  "allowed_models": [
    "gpt-5.4"
  ],
  "allowed_providers": [],
  "assignment_count": 1,
  "blocked_models": [],
  "blocked_providers": [],
  "created_at": "2026-07-27T10:00:00.000Z",
  "credit_limit_cents": 50000,
  "credit_limit_reset_interval": "monthly",
  "description": "Production policy",
  "enabled": true,
  "id": "guardrail_123",
  "model_budgets": [
    {
      "credit_limit_cents": 10000,
      "credit_limit_reset_interval": "monthly",
      "match_mode": "include",
      "models": [
        "gpt-5.4"
      ]
    }
  ],
  "name": "Production budget"
}
```

## Error response (401)

HTTP 401

```json
{
  "error": "Authentication required"
}
```

## Error response (403)

HTTP 403

```json
{
  "error": "Management API key required"
}
```

## Error response (403)

HTTP 403

```json
{
  "error": "Account admin required"
}
```

## Error response (404)

HTTP 404

```json
{
  "error": "Resource not found"
}
```

## cURL example



### curl

```curl
curl -X GET https://runapi.ai/api/v1/guardrails/guardrail_123 \
  -H 'Authorization: Bearer YOUR_MANAGEMENT_API_KEY'
```

## Related reference

- [Guardrails](/docs/api/management/guardrails)
- [Guardrail object](/docs/api/management/guardrails/object)