# Mureka 9 (`mureka_9`)

> Mureka 9 songs with vocals from a prompt ($0.30) or from your own lyrics ($0.045), plus instrumentals from a prompt ($0.045, pinned route). One track per request; the model picks the length.

- Capability: Music (tool `music`) — Music
- Price: from $0.045 per track on the cheapest route; the total depends on the request (1 credit = $0.01). Exact price for a request: POST https://api.varg.ai/v2/estimate
- Typical time: ~2 min
- JSON Schema: https://api.varg.ai/v2/tools/music?model=mureka_9 (public, no key)
- Try it: https://varg.ai/dashboard/tools/playground?model=mureka_9

## Call it

REST: `POST https://api.varg.ai/v2/tools/music/call` with `Authorization: Bearer $VARG_API_KEY` (create a key at https://varg.ai/dashboard/api).
It answers `202` with a job right away. Poll `GET /v2/jobs/{id}` until `status` is `completed`, then read `output.outputs[0].url` — or pass `options.webhook_url` and get the finished job POSTed to you.

```bash
curl -X POST https://api.varg.ai/v2/tools/music/call \
  -H "Authorization: Bearer $VARG_API_KEY" \
  -H "Content-Type: application/json" \
  -d '{
  "model": "mureka_9",
  "prompt": "A bright summer love song with a catchy chorus",
  "duration": 5
}'
```

MCP: the varg server `https://mcp.varg.ai/mcp` (OAuth sign-in, no key) runs it with `call_tool`:

```json
{
  "tool": "music",
  "input": {
    "model": "mureka_9",
    "prompt": "A bright summer love song with a catchy chorus",
    "duration": 5
  },
  "wait": true
}
```

## Inputs

| field | type | required | default | allowed | description |
|---|---|---|---|---|---|
| `model` | string | yes | — | `mureka_9` or a route key below | Which model runs the job. |
| `prompt` | string | yes | — | — | — |
| `duration` | integer | no | — | 1–600 | — |

Media inputs are URLs. Upload a local file first with `POST /v2/files` and pass the returned URL.

## Provider options

Optional, per provider, under `provider_options.<provider>`. Only the options of the provider that runs the job apply — pin a route to choose it.

### provider_options.fal

| field | type | required | default | allowed | description |
|---|---|---|---|---|---|
| `styles` | array of URL strings | no | — | — | — |
| `gender` | string | no | — | female \| male | — |
| `lyrics` | string | no | — | — | — |
| `vocal_id` | string | no | — | — | — |
| `melody_id` | string | no | — | — | — |
| `reference_id` | string | no | — | — | — |
| `enable_safety_checker` | boolean | no | — | — | Authorized callers may set false to request relaxed screening. |
| `instrumental_id` | string | no | — | — | — |

## Routes

`"model": "mureka_9"` picks a route automatically (priority order, then the inputs you send). To pin one, pass its key as `model`.

| model key | provider | modality | price from | typical time |
|---|---|---|---|---|
| `fal:mureka/v9/generate/song` | fal | music | $0.045/track | ~2 min |
| `fal:mureka/v9/generate/instrumental` | fal | music | $0.045/track | ~2 min |

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Catalog version 2026-11-11T12:59:09.901887+00:00. All models: https://varg.ai/models/llms.txt