> ## Documentation Index
> Fetch the complete documentation index at: https://docs.stateset.com/llms.txt
> Use this file to discover all available pages before exploring further.

# Validate facts against all constraints

> **Required scope:** write

**Required scope:** `write`

### Request body

`ValidateConstraintsRequest`

<ParamField body="facts" type="string[]" required>
  Facts to validate (in NSR-L syntax)
</ParamField>

### Response

`ValidateConstraintsResponse`

<ResponseField name="hard_violations" type="integer" required />

<ResponseField name="has_refutation" type="boolean" required />

<ResponseField name="soft_violations" type="integer" required />

<ResponseField name="total_penalty" type="number (float)" required />

<ResponseField name="valid" type="boolean" required />

<ResponseField name="violations" type="ConstraintViolationResponse[]" required>
  <Expandable title="ConstraintViolationResponse">
    <ResponseField name="confidence_penalty" type="number (float)" required />

    <ResponseField name="constraint_id" type="string" required />

    <ResponseField name="explanation" type="string" required />

    <ResponseField name="is_hard" type="boolean" required />

    <ResponseField name="satisfied" type="boolean" required />
  </Expandable>
</ResponseField>

### Status codes

| Code  | Meaning                                            |
| ----- | -------------------------------------------------- |
| `200` | Validation result                                  |
| `401` | Unauthorized — missing or invalid credentials      |
| `403` | Forbidden — the key/token lacks the required scope |
| `429` | Rate limited — see Retry-After / X-RateLimit-Reset |

<RequestExample>
  ```bash cURL theme={null}
  curl --request POST \
    --url 'https://api.nsr.stateset.com/api/v1/constraints/validate' \
    --header 'X-API-Key: YOUR_API_KEY' \
    --header 'Content-Type: application/json' \
    --data '{
    "facts": [
      "string"
    ]
  }'
  ```
</RequestExample>

<ResponseExample>
  ```json 200 theme={null}
  {
    "hard_violations": 1,
    "has_refutation": true,
    "soft_violations": 1,
    "total_penalty": 1.5,
    "valid": true,
    "violations": [
      {
        "confidence_penalty": 7.5,
        "constraint_id": "3fa85f64-5717-4562-b3fc-2c963f66afa6",
        "explanation": "string",
        "is_hard": true,
        "satisfied": true
      }
    ]
  }
  ```
</ResponseExample>