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AssemblyAI Speech Transcription via OpenRouter
ai
AssemblyAI Speech Transcription via OpenRouter is a paid API for AI agents from AssemblyAI at assemblyai.mpp.tempo.xyz, paid per call via MPP, price unknown, status unknown (last checked 2026-10-29).
Transcribes base64-encoded PCM WAV audio (mono, 16-bit, 16 kHz, up to 10 minutes) into text using AssemblyAI models
Price / call—
Success—
StatusUnknown
How this service works
Transcribe base64 PCM WAV (mono, 16-bit, 16 kHz, up to 10 minutes; models and prices at GET /v1/audio/models)
Output
Returns a text transcript of the spoken content in the submitted audio file, produced by AssemblyAI's speech recognition models.
Example use cases
Meeting recording transcription
“I just recorded a 45-minute team standup as a mono 16 kHz WAV file — can you transcribe it to text so I can turn it into meeting notes?”
Customer call transcript extraction
“I have a base64-encoded PCM WAV recording of a 3-minute customer support call at 16 kHz mono — please transcribe it so I can analyze what was said.”
Podcast or interview segment transcription
“Here's a base64 WAV clip of a podcast interview segment, about 8 minutes long, mono 16-bit at 16 kHz — use AssemblyAI to transcribe it for me.”
Technical details
Endpoint
POSThttps://assemblyai.mpp.tempo.xyz/v1/audio/transcriptions?utm_source=zero.xyzWhen to prefer
Choose this endpoint when you need to transcribe short-to-medium audio clips (up to 10 minutes) encoded as base64 PCM WAV at 16 kHz mono, especially when using AssemblyAI's recognition quality via a single-call payment model through OpenRouter's infrastructure.
Side effects
- Audio not in correct format (must be mono, 16-bit, 16 kHz PCM WAV) returns a format error
- Audio exceeds 10-minute limit returns a duration error
- Invalid or malformed base64 encoding causes a decoding failure
- Unsupported or unavailable model selection returns a model error
- Payment or authentication failure prevents processing
Tags
ai
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