curl --request POST \
--url https://api.evolink.ai/v1/audios/generations \
--header 'Authorization: Bearer <token>' \
--header 'Content-Type: application/json' \
--data '
{
"model": "qwen3-tts-vd",
"prompt": "Good evening, listeners. Welcome to the evening news broadcast.",
"voice": "qwen-tts-vd-announcer-voice-20260402-a1b2"
}
'{
"created": 1775122733,
"id": "task-unified-1775122733-lozyt2i5",
"model": "qwen3-tts-vd",
"object": "audio.generation.task",
"progress": 0,
"status": "pending",
"task_info": {
"can_cancel": true,
"estimated_time": 10,
"audio_type": "tts"
},
"type": "audio",
"usage": {
"credits_reserved": 0.32
}
}{
"error": {
"code": "missing_text",
"message": "Missing required parameter: prompt or input",
"type": "invalid_request_error"
}
}{
"error": {
"code": "unauthorized",
"message": "Invalid or expired token",
"type": "authentication_error"
}
}{
"error": {
"code": "insufficient_quota",
"message": "Insufficient quota. Please top up your account.",
"type": "insufficient_quota"
}
}{
"error": {
"code": "model_access_denied",
"message": "Token does not have access to model: qwen3-tts-vd",
"type": "invalid_request_error"
}
}{
"error": {
"code": "rate_limit_exceeded",
"message": "Too many requests, please try again later",
"type": "rate_limit_error"
}
}{
"error": {
"code": "internal_error",
"message": "Internal server error",
"type": "api_error"
}
}Qwen TTS
Qwen3 TTS VD
- Convert text to speech audio; must use a custom voice created with Qwen Voice Design — system built-in voices are not supported
- Workflow: call
qwen-voice-designto create a voice → obtain thevoicename → pass it to thevoiceparameter of this API - Asynchronous processing mode; use the returned task ID to query the result
- Generated audio links are valid for 24 hours — save them promptly
POST
/
v1
/
audios
/
generations
curl --request POST \
--url https://api.evolink.ai/v1/audios/generations \
--header 'Authorization: Bearer <token>' \
--header 'Content-Type: application/json' \
--data '
{
"model": "qwen3-tts-vd",
"prompt": "Good evening, listeners. Welcome to the evening news broadcast.",
"voice": "qwen-tts-vd-announcer-voice-20260402-a1b2"
}
'{
"created": 1775122733,
"id": "task-unified-1775122733-lozyt2i5",
"model": "qwen3-tts-vd",
"object": "audio.generation.task",
"progress": 0,
"status": "pending",
"task_info": {
"can_cancel": true,
"estimated_time": 10,
"audio_type": "tts"
},
"type": "audio",
"usage": {
"credits_reserved": 0.32
}
}{
"error": {
"code": "missing_text",
"message": "Missing required parameter: prompt or input",
"type": "invalid_request_error"
}
}{
"error": {
"code": "unauthorized",
"message": "Invalid or expired token",
"type": "authentication_error"
}
}{
"error": {
"code": "insufficient_quota",
"message": "Insufficient quota. Please top up your account.",
"type": "insufficient_quota"
}
}{
"error": {
"code": "model_access_denied",
"message": "Token does not have access to model: qwen3-tts-vd",
"type": "invalid_request_error"
}
}{
"error": {
"code": "rate_limit_exceeded",
"message": "Too many requests, please try again later",
"type": "rate_limit_error"
}
}{
"error": {
"code": "internal_error",
"message": "Internal server error",
"type": "api_error"
}
}Authorizations
##All endpoints require Bearer Token authentication##
Get your API Key:
Visit the API Key management page to obtain your API Key
Add the following header to every request:
Authorization: Bearer YOUR_API_KEY
Body
application/json
Model name
Available options:
qwen3-tts-vd Example:
"qwen3-tts-vd"
Text to synthesize
Constraints:
- Maximum
600characters
Maximum string length:
600Example:
"Good evening, listeners. Welcome to the evening news broadcast."
Voice name
- Must first create a voice via Qwen Voice Design
- Obtain the value from
result_data.voicein the Voice Design task result - System built-in voices are not supported
Example:
"qwen-tts-vd-announcer-voice-20260402-a1b2"
Language hint to help the model select pronunciation rules
Auto-detected if not provided
Available options:
Auto, Chinese, English, Japanese, Korean, French, German, Spanish, Italian, Russian, Portuguese Example:
"Auto"
HTTPS callback URL invoked when the task completes
Trigger conditions:
- Triggered when the task is completed, failed, or cancelled
- Sent after billing confirmation
Security restrictions:
- HTTPS only
- Internal IP addresses are blocked (127.0.0.1, 10.x.x.x, 172.16-31.x.x, 192.168.x.x, etc.)
- URL length must not exceed
2048characters
Callback behavior:
- Timeout:
10seconds - Up to
3retries after failure (at 1s / 2s / 4s intervals) - Response body format matches the task query API response
- A 2xx status code is considered success; other codes trigger a retry
Example:
"https://your-domain.com/webhooks/tts-completed"
Response
Speech synthesis task created successfully
Task creation timestamp
Example:
1775122733
Task ID
Example:
"task-unified-1775122733-lozyt2i5"
Actual model name used
Example:
"qwen3-tts-vd"
Specific task type
Available options:
audio.generation.task Task progress percentage (0-100)
Required range:
0 <= x <= 100Example:
0
Task status
Available options:
pending, processing, completed, failed Example:
"pending"
Audio task details
Show child attributes
Show child attributes
Task output type
Available options:
audio Example:
"audio"
Usage and billing information
Show child attributes
Show child attributes