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AssemblyAI Transcription via gateway.apiosk.com
x402
AssemblyAI Transcription via gateway.apiosk.com is a paid API for AI agents from gateway.apiosk.com, paid per call via x402, $0.14/call, status down (last checked 2026-09-15).
Transcribes audio files to text using AssemblyAI, returning a full transcript with word-level confidence scores, speaker labels, and language metadata
Price / call$0.14
Success—
StatusDown
How this service works
API call to assemblyai
Output
Returns a JSON object containing the transcript ID, full text of the transcription, completion status, original audio URL, overall confidence score (e.g. 0.937), language code (e.g. en_us), audio duration in seconds, an array of words with start/end timestamps and per-word confidence scores, and an error field (null on success).
Example use cases
Example prompt
“Can you transcribe the audio at https://assembly.ai/wildfires.mp3 and give me the full text along with word-level confidence scores?”
Technical details
Endpoint
GEThttps://gateway.apiosk.com/assemblyai/transcriptWhen to prefer
Use this endpoint when you need to convert spoken audio from a publicly accessible URL into text, especially when you also need word-level timestamps, confidence scores, or language detection. Prefer this over raw AssemblyAI if you want a simple, pay-per-call gateway without managing AssemblyAI API keys, paying with USDC via x402 protocol.
Side effects
- Invalid or inaccessible audio URL returns an error in the error field
- Audio format not supported by AssemblyAI results in a failed status
- Network timeout if audio file is very large or slow to download
- Missing required audio URL parameter returns a 4xx error
- Transcription job still processing returns status other than 'completed'
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| required | string | |
| properties | string |
Output
Schema · Response
{
"id": "5e0688cb-3fd3-445c-a84e-a5bfe28d7fbf",
"text": "Smoke from hundreds of wildfires in Canada is triggering air quality alerts throughout the US.",
"error": null,
"words": [
{
"end": 650,
"text": "Smoke",
"start": 250,
"speaker": null,
"confidence": 0.98
},
{
"end": 850,
"text": "from",
"start": 690,
"speaker": null,
"confidence": 0.99
}
],
"status": "completed",
"audio_url": "https://assembly.ai/wildfires.mp3",
"confidence": 0.937,
"language_code": "en_us",
"audio_duration": 281
}Tags
x402
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Zero review prompt (fires after every successful call)
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