> ## 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.

# Parse NSR-L code without executing

> **Required scope:** write

**Required scope:** `write`

### Request body

`NSRLParseRequest`

<ParamField body="code" type="string" required>
  NSR-L code to parse
</ParamField>

### Response

`NSRLParseResponse`

<ResponseField name="errors" type="string[]" required>
  Parse errors (if any)
</ResponseField>

<ResponseField name="facts" type="ParsedFact[]" required>
  Parsed facts

  <Expandable title="ParsedFact">
    <ResponseField name="arguments" type="string[]" required />

    <ResponseField name="predicate" type="string" required />
  </Expandable>
</ResponseField>

<ResponseField name="queries" type="string[]" required>
  Parsed queries
</ResponseField>

<ResponseField name="rules" type="ParsedRule[]" required>
  Parsed rules

  <Expandable title="ParsedRule">
    <ResponseField name="body" type="ParsedFact[]" required>
      <Expandable title="ParsedFact">
        <ResponseField name="arguments" type="string[]" required />

        <ResponseField name="predicate" type="string" required />
      </Expandable>
    </ResponseField>

    <ResponseField name="head" type="ParsedFact" required>
      <Expandable title="ParsedFact">
        <ResponseField name="arguments" type="string[]" required />

        <ResponseField name="predicate" type="string" required />
      </Expandable>
    </ResponseField>
  </Expandable>
</ResponseField>

<ResponseField name="success" type="boolean" required>
  Whether parsing succeeded
</ResponseField>

### Status codes

| Code  | Meaning                                            |
| ----- | -------------------------------------------------- |
| `200` | Parse 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/nsrl/parse' \
    --header 'X-API-Key: YOUR_API_KEY' \
    --header 'Content-Type: application/json' \
    --data '{
    "code": "human(socrates). mortal(X) :- human(X)."
  }'
  ```
</RequestExample>

<ResponseExample>
  ```json 200 theme={null}
  {
    "errors": [
      "string"
    ],
    "facts": [
      {
        "arguments": [],
        "predicate": "string"
      }
    ],
    "queries": [
      "string"
    ],
    "rules": [
      {
        "body": [],
        "head": {
          "arguments": null,
          "predicate": null
        }
      }
    ],
    "success": true
  }
  ```
</ResponseExample>