# Submit CAT attempt

**POST /api/v1/cats/{id}/finish-attempt/{attempt}**

Submits a completed CAT attempt with all student responses. This finalizes the attempt. AI auto-marking for UNSTRUCTURED questions will run when the attempt is graded.


## Servers
- Local server: http://localhost:3500 (Local server)
- Production server: https://api.echoplain.social (Production server)



## Parameters

### Path parameters
- **attempt** (string)
  Attempt ID to submit
- **id** ()
  CAT ID (not used in logic but required for route)


### Body: application/json (object)
Student responses and submission data
- **attempt** (object)

- **choices** (array[object])



## Responses
### 200
CAT attempt submitted successfully

### 400
Invalid submission data or attempt already submitted

### 404
Attempt not found


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