Export MIDI

curl --request POST \
  --url https://apistable.ai/api/v1/tasks/create_task \
  --header 'Authorization: Bearer <token>' \
  --header 'Content-Type: application/json' \
  --data '
{
  "model": "suno_export_midi",
  "input": {
    "audio_id": "YOUR_AUDIO_ID"
  }
}
'

const options = {
  method: 'POST',
  headers: {Authorization: 'Bearer <token>', 'Content-Type': 'application/json'},
  body: JSON.stringify({model: 'suno_export_midi', input: {audio_id: 'YOUR_AUDIO_ID'}})
};

fetch('https://apistable.ai/api/v1/tasks/create_task', options)
  .then(res => res.json())
  .then(res => console.log(res))
  .catch(err => console.error(err));

import requests

url = "https://apistable.ai/api/v1/tasks/create_task"

payload = {
    "model": "suno_export_midi",
    "input": { "audio_id": "YOUR_AUDIO_ID" }
}
headers = {
    "Authorization": "Bearer <token>",
    "Content-Type": "application/json"
}

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

print(response.text)

{
  "code": 200,
  "msg": "success",
  "data": {
    "task_id": "<string>"
  }
}

{
  "code": 123,
  "msg": "<string>",
  "data": null
}

{
  "code": 123,
  "msg": "<string>",
  "data": null
}

{
  "code": 123,
  "msg": "<string>",
  "data": null
}

{
  "code": 123,
  "msg": "<string>",
  "data": null
}

{
  "code": 123,
  "msg": "<string>",
  "data": null
}

{
  "code": 123,
  "msg": "<string>",
  "data": null
}

{
  "code": 123,
  "msg": "<string>",
  "data": null
}

{
  "code": 123,
  "msg": "<string>",
  "data": null
}

{
  "code": 123,
  "msg": "<string>",
  "data": null
}

{
  "code": 123,
  "msg": "<string>",
  "data": null
}

POST

api

tasks

create_task

Export MIDI

curl --request POST \
  --url https://apistable.ai/api/v1/tasks/create_task \
  --header 'Authorization: Bearer <token>' \
  --header 'Content-Type: application/json' \
  --data '
{
  "model": "suno_export_midi",
  "input": {
    "audio_id": "YOUR_AUDIO_ID"
  }
}
'

const options = {
  method: 'POST',
  headers: {Authorization: 'Bearer <token>', 'Content-Type': 'application/json'},
  body: JSON.stringify({model: 'suno_export_midi', input: {audio_id: 'YOUR_AUDIO_ID'}})
};

fetch('https://apistable.ai/api/v1/tasks/create_task', options)
  .then(res => res.json())
  .then(res => console.log(res))
  .catch(err => console.error(err));

import requests

url = "https://apistable.ai/api/v1/tasks/create_task"

payload = {
    "model": "suno_export_midi",
    "input": { "audio_id": "YOUR_AUDIO_ID" }
}
headers = {
    "Authorization": "Bearer <token>",
    "Content-Type": "application/json"
}

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

print(response.text)

{
  "code": 200,
  "msg": "success",
  "data": {
    "task_id": "<string>"
  }
}

{
  "code": 123,
  "msg": "<string>",
  "data": null
}

{
  "code": 123,
  "msg": "<string>",
  "data": null
}

{
  "code": 123,
  "msg": "<string>",
  "data": null
}

{
  "code": 123,
  "msg": "<string>",
  "data": null
}

{
  "code": 123,
  "msg": "<string>",
  "data": null
}

{
  "code": 123,
  "msg": "<string>",
  "data": null
}

{
  "code": 123,
  "msg": "<string>",
  "data": null
}

{
  "code": 123,
  "msg": "<string>",
  "data": null
}

{
  "code": 123,
  "msg": "<string>",
  "data": null
}

{
  "code": 123,
  "msg": "<string>",
  "data": null
}

Operations are enabled individually by server configuration. Disabled operations return 503 without a task. Music credit deduction is currently disabled.

Using this operation

Select an APIstable audio ID to extract MIDI data. External audio uploads are not accepted here.

1. Prepare the fields shown in the example below. Replace sample URLs and IDs with resources you can access.
1. Set model to suno_export_midi and place the parameters inside input. Submit once and save the returned task_id.
1. Query the saved task or receive its callback. A processing result is not a reason to submit the operation again.
Read download_url from result and save the file before expires_at. Reusing an export does not reset its expiry.

Create task

Send model and input to the common task endpoint. callback_url is an optional top-level public HTTPS address. All resource IDs are APIstable IDs owned by your account. Music credit deduction is currently disabled.

{
  "model": "suno_export_midi",
  "input": {
    "audio_id": "YOUR_AUDIO_ID"
  }
}

Acceptance response

HTTP 200 confirms acceptance, not completion. Query GET /api/v1/tasks/{task_id} until data.status is succeeded or failed. Read data.result only after success; a failed task has its error in data.message.

{
  "code": 200,
  "msg": "success",
  "data": {
    "task_id": "YOUR_TASK_ID"
  }
}

Parameter reference

Field	Type	Required	Description and limits
audio_id	string	Yes	APIstable song ID belonging to your account. Cover/extend accept this ID only, without a source task_id or external URL. maxLength: 200

Inputs and limits

The schema lists supported fields, types and basic limits. Also follow Important conditions: cross-field and source-resource checks are not fully represented in JSON Schema. Unknown parameters are rejected. URL fields accept public HTTPS URLs, never file objects.

{
  "$schema": "https://json-schema.org/draft/2020-12/schema",
  "type": "object",
  "properties": {
    "audio_id": {
      "type": "string",
      "minLength": 1,
      "maxLength": 200,
      "description": "APIstable song ID belonging to your account. Cover/extend accept this ID only, without a source task_id or external URL."
    }
  },
  "required": [
    "audio_id"
  ],
  "additionalProperties": false
}

Important conditions

The output is a MIDI file, not playable audio. Wait for success, then download result.download_url; no audio_to_midi URL-upload endpoint is provided.
Uploaded files last 24 hours, generated files 14 days and task details 30 days. Reused files keep their original expiry. Valid Voice/Persona identity mappings are separate from task-log cleanup. Download files you need to retain.

Result schema

The creation response is {code:200,msg:“success”,data:{task_id}}. Poll GET /api/v1/tasks/{task_id}. On success, data.result is an object matching the schema below; it is otherwise null. input remains a JSON string.

{
  "type": "object",
  "required": [
    "audio_id",
    "download_url",
    "expires_at"
  ],
  "properties": {
    "audio_id": {
      "type": "string"
    },
    "download_url": {
      "type": "string"
    },
    "expires_at": {
      "type": "string"
    }
  },
  "additionalProperties": false
}

Voice: all four steps File uploads Callbacks

Authorizations

Authorization

string

header

required

Every valid key can submit and query its own account. Revoked keys are rejected.

Body

application/json

model

enum<string>

required

Available options:

suno_export_midi

Example:

"suno_export_midi"

input

object

required

Show child attributes

callback_url

string<uri>

Optional public HTTPS endpoint for signed completion callbacks; no redirects or private IPs.

Response

Accepted task. Poll the common task endpoint or use callback_url.

code

any

required

msg

any

required

data

object

required

Show child attributes

Getting started with APIstable

Market

Export MIDI

Using this operation

Create task

Acceptance response

Parameter reference

Inputs and limits

Important conditions

Result schema

Authorizations

Body

Response

​Using this operation

​Create task

​Acceptance response

​Parameter reference

​Inputs and limits

​Important conditions

​Result schema

​Related workflows

Authorizations

Body

Response

Using this operation

Create task

Acceptance response

Parameter reference

Inputs and limits

Important conditions

Result schema

Related workflows