Transcribe audio to text

POST /v1/audio/transcriptions

Transcribes audio into text using speech recognition models. Accepts multipart/form-data with a file field containing the audio data. Billed per audio minute.

Authentication

Bearer API key required.

Request body — Required

multipart/form-data

TranscriptionRequest

TranscriptionRequest

Responses

HTTP 200

Transcription completed successfully.

application/json

schema
oneOf
TranscriptionResponse

TranscriptionResponse

TranscriptionVerboseResponse

TranscriptionVerboseResponse

{
  "text": "Hello, this is a test recording.",
  "duration": 2.5,
  "segments": [
    {
      "start": 0,
      "end": 2.5,
      "text": "Hello, this is a test recording."
    }
  ]
}

text/plain

string
"Hello, this is a test recording."

HTTP 400

Invalid request body or parameters.

application/json

ErrorResponse

ErrorResponse

{
  "error": {
    "message": "The \"model\" field is required.",
    "type": "devup_error",
    "code": "missing_model"
  }
}

HTTP 401

Missing, empty, or revoked API key. This response covers three distinct codes depending on the authentication path: - missing_api_key: Authorization header absent or Bearer token is empty. On GET /v1/models, GET /v1/models/{model}, GET /v1/me and GET /v1/me/avatar, which also accept the x-api-key header, the message is "Provide your API key as: Authorization: Bearer sk-devup-..., or in the x-api-key header." - invalid_api_key: Key not found, deactivated, or not valid. - token_revoked: The scoped JWT credential has been explicitly revoked.

application/json

ErrorResponse

ErrorResponse

Authorization header absent or empty Bearer token
{
  "error": {
    "message": "Provide your API key as: Authorization: Bearer sk-devup-...",
    "type": "devup_error",
    "code": "missing_api_key"
  }
}
Key not found, deactivated, or not valid
{
  "error": {
    "message": "The API key provided is invalid or has been deactivated.",
    "type": "devup_error",
    "code": "invalid_api_key"
  }
}
Scoped JWT credential has been explicitly revoked (scoped-token auth only)
{
  "error": {
    "message": "This scoped token has been revoked.",
    "type": "devup_error",
    "code": "token_revoked"
  }
}

HTTP 402

DZD balance depleted or scoped credential budget exhausted. - insufficient_balance: The DEVUP account has insufficient available balance. Also returned on POST /v1/chat/completions and POST /v1/responses for a request with a non-empty tools array that the balance does not cover in full. - budget_exhausted: The scoped credential has reached its configured budget. This code is never returned for unrestricted master API keys.

application/json

ErrorResponse

ErrorResponse

DEVUP account has insufficient available balance
{
  "error": {
    "message": "Your balance is depleted. Top up at https://devupai.com/dashboard/billing.",
    "type": "devup_error",
    "code": "insufficient_balance"
  }
}
Scoped credential budget exhausted (scoped-token auth only)
{
  "error": {
    "message": "Scoped token budget has been exhausted.",
    "type": "devup_error",
    "code": "budget_exhausted"
  }
}

HTTP 404

The requested model identifier was not found in the catalog. It is not retryable unless the model identifier is changed.

application/json

ErrorResponse

ErrorResponse

Model not found in catalog
{
  "error": {
    "message": "The requested model was not found.",
    "type": "devup_error",
    "code": "model_not_found"
  }
}

HTTP 429

Too many requests. error.code is rate_limit_exceeded (your account's per-minute limit), model_at_capacity (the model is momentarily at capacity; Retry-After: 5 and retry-after-ms: 5000, no X-RateLimit-* headers; the OpenAI and Anthropic SDKs retry it automatically), concurrency_limit_exceeded, tpm_limit_exceeded, or flex_capacity_unavailable. Wait the number of seconds in Retry-After before retrying.

application/json

ErrorResponse

ErrorResponse

Your account's per-minute limit is reached
{
  "error": {
    "message": "Rate limit exceeded. Please slow down your requests and try again shortly.",
    "type": "devup_error",
    "code": "rate_limit_exceeded"
  }
}
The model is momentarily at capacity
{
  "error": {
    "message": "This model is currently at capacity. Retry in a few seconds.",
    "type": "devup_error",
    "code": "model_at_capacity"
  }
}

HTTP 502

The model could not complete the request this time. Retry the request. A request that the model rejects is never returned as 502: it returns 400 with a specific code, such as tools_not_supported, conversation_must_end_with_user, empty_message_content, feature_not_supported, response_format_not_supported or invalid_request_error. - DEVUP_COMPUTE_ERROR: The model returned an empty or unreadable response, or could not complete the request this time. - response_truncated: The response stream was cut off before completing.

application/json

ErrorResponse

ErrorResponse

The model could not complete the request
{
  "error": {
    "message": "The model could not complete this request. Retry it; retrying usually succeeds.",
    "type": "devup_error",
    "code": "DEVUP_COMPUTE_ERROR"
  }
}
Response was cut off before completing
{
  "error": {
    "message": "The response was cut off before completing. Retrying will produce a complete response.",
    "type": "devup_error",
    "code": "DEVUP_COMPUTE_ERROR"
  }
}

HTTP 503

Requests are temporarily paused or the requested model is temporarily unavailable. Retry according to the delay communicated in Retry-After and/or retry-after-ms when present.

application/json

ErrorResponse

ErrorResponse

Requests are paused for a few seconds
{
  "error": {
    "message": "Requests are paused for a few seconds. Retry after the delay in the Retry-After header.",
    "type": "devup_error",
    "code": "service_unavailable"
  }
}
The requested model is temporarily unavailable
{
  "error": {
    "message": "The requested model is temporarily unavailable. Retry shortly.",
    "type": "devup_error",
    "code": "model_unavailable"
  }
}