<!-- https://cutedyno.com/docs/api/create-media-upload-session -->

# Create a browser upload session

`POST https://api.cutedyno.com/v1/media/upload-sessions`

Returns a hosted upload URL for the user to open in a browser. Poll GET /v1/media/upload-sessions/{id} until status is completed, then use the returned file URLs in a post.


Required permission: `media:write`

Accepts `profileId` to target a specific profile. Omit it to use the key’s home profile.

Required permission: `media:write`

MCP tool: `create_upload_session`

## Body

- `profileId` (string) — Profile to act on. Defaults to the profile the API key was created in.

## Request

```bash
curl -X POST "https://api.cutedyno.com/v1/media/upload-sessions" \
  -H "Authorization: Bearer $CUTEDYNO_API_KEY" \
  -H "Content-Type: application/json" \
  -d '{
  "profileId": "profile_a1b2c3d4"
}'
```

```typescript
import { CuteDyno } from '@cutedyno/node';

const cutedyno = new CuteDyno();

const result = await cutedyno.request('POST', '/v1/media/upload-sessions');
console.log(result);
```

```python
import os
import requests

url = "https://api.cutedyno.com/v1/media/upload-sessions"
headers = {"Authorization": f"Bearer {os.environ['CUTEDYNO_API_KEY']}"}

payload = {
    "profileId": "profile_a1b2c3d4"
}

response = requests.post(url, json=payload, headers=headers)
response.raise_for_status()
print(response.json())
```

## Response 201

- `id` (string, required)
- `uploadUrl` (string, required)
- `expiresAt` (string, required) — ISO 8601 datetime, for example 2026-08-01T12:00:00Z.
- `status` (enum, required) One of: pending, completed, expired.

```json
{
  "id": "a1b2c3d4-0000-4000-8000-000000000000",
  "uploadUrl": "https://cdn.example.com/media/launch.jpg",
  "expiresAt": "string",
  "status": "pending"
}
```

## Errors

- `invalid_api_key` (401) — The key does not exist, was revoked, or is malformed. Keys start with cdyn_live_.
- `profile_not_accessible` (403) — The requested profile is outside this key’s scope, or belongs to another account.
- `rate_limit_exceeded` (429) — Too many requests for this key. Honour the Retry-After header before retrying.
- `internal_error` (500) — Something failed on our side. Retry with the same Idempotency-Key; report the requestId if it persists.