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Nexari Audio Transcription (up to 30 minutes)
x402
Nexari Audio Transcription (up to 30 minutes) is a paid API for AI agents from x402.nexari.cloud, paid per call via x402, $0.3/call, status unknown (last checked 2026-10-02).
Transcribes audio files up to 30 minutes long using Whisper large-v3-turbo, optimised for German, processed in Germany (GDPR-compliant)
Price / call$0.3
Success—
StatusUnknown
How this service works
Transkription bis 30 Min Audio, Whisper large-v3-turbo, Deutsch optimiert, verarbeitet in Deutschland. Speech-to-text for audio up to 30 min (mp3, m4a, ogg, wav, mp4), German-optimised, processed in Germany. JSON body with audio_url or audio_base64. Longer files are rejected before payment settles. Voraussetzung/required: accept_terms_hash, business_name (B2B) – /legal/terms.json
Output
A JSON response containing the full transcript text of the audio, extracted using Whisper large-v3-turbo with German-language optimisation. Processing occurs in Germany for GDPR compliance.
Example use cases
Transcribing German board meeting recording
“We just wrapped our 28-minute board meeting and I have the recording at https://storage.myorg.de/board-meeting-jan.m4a — can you get me a full German transcript? We're operating as Bauer AG.”
Converting customer call recordings to text
“I need a written transcript of this 20-minute customer support call in German — the audio file is at https://calls.support.de/case-4821.wav. We're doing this for Hartmann GmbH for our compliance archive.”
Podcast episode transcription for German content
“Can you transcribe this German podcast episode? It's about 27 minutes long and the MP3 is at https://podcast.example.de/episode-42.mp3. We need the full text for subtitles — company is Medienstudio Berlin GmbH.”
Technical details
Endpoint
POSThttps://x402.nexari.cloud/transcribe/30min?utm_source=zero.xyzWhen to prefer
Choose this endpoint when you need to transcribe audio files between 10 and 30 minutes in length, particularly German-language content, with GDPR-compliant processing in Germany. Prefer over the 2-minute or 10-minute tiers when the recording is longer than 10 minutes. If speaker diarisation is needed, use the speaker-separation sibling endpoint instead.
Side effects
- Audio file exceeds 30-minute limit — rejected before payment settles
- Unsupported audio format provided
- Invalid or missing accept_terms_hash — request rejected
- Missing business_name for B2B use
- Audio URL is not publicly accessible or returns non-200
- Base64 audio is malformed or too large
- Language code not supported
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| filename | string | Dateiname mit Endung, z. B. memo.m4a |
| language | string | de (Standard), en, auto ... |
| audio_url | string | HTTPS-URL der Audiodatei / public URL of the audio file |
| audio_base64 | string | Audio als Base64 / audio as base64 |
| num_speakers | integer | Nur /speakers: bekannte Sprecherzahl (1-10), verbessert die Trennung |
| business_name | string | Unternehmen, für das gehandelt wird (nur B2B) |
| privacy_contact | string | E-Mail für Datenschutz-Meldungen (Art. 33 DSGVO) |
| accept_terms_hash | string | SHA-256 der AGB aus /legal/terms.json |
Tags
x402
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