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Nexari Transcription (2-Minute Audio, German-Optimised)
x402
Nexari Transcription (2-Minute Audio, German-Optimised) is a paid API for AI agents from x402.nexari.cloud, paid per call via x402, $0.02/call, status unknown (last checked 2026-10-02).
Transcribes audio files up to 2 minutes long (mp3, m4a, ogg, wav, mp4) using Whisper large-v3-turbo, optimised for German, processed in Germany.
Price / call$0.02
Success—
StatusUnknown
How this service works
Transkription bis 2 Min Audio, Whisper large-v3-turbo, Deutsch optimiert, verarbeitet in Deutschland. Speech-to-text for audio up to 2 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 transcript text of the audio, returned as recognised speech from Whisper large-v3-turbo. If the audio exceeds 2 minutes or an unsupported format is submitted, the request is rejected before payment is charged.
Example use cases
German customer voicemail to text
“I have a customer voicemail in German at https://storage.example.com/voicemail_42.mp3 — it's under 2 minutes. Can you transcribe it to text so I can paste it into our CRM?”
Dictated note transcription
“I just recorded a quick voice note in German as a base64 audio string (m4a format, filename 'note.m4a'). Please transcribe it for me, language is de.”
Meeting snippet extraction
“Can you get the text from this short German audio clip — https://media.example.com/meeting_excerpt.wav — it's about 90 seconds, language German, so I can add it to my meeting notes?”
Technical details
Endpoint
POSThttps://x402.nexari.cloud/transcribe/2min?utm_source=zero.xyzWhen to prefer
Choose this endpoint when you need fast, cost-effective speech-to-text for short German-language audio clips (under 2 minutes) with GDPR-compliant processing in Germany. It is ideal for single voice memos, voicemails, or short dictations. For audio up to 10 minutes, use the sibling 10-minute endpoint. For diarised output with speaker separation, use the dedicated speaker-diarisation endpoint.
Side effects
- Audio longer than 2 minutes — request rejected before payment settles
- Unsupported audio format — only mp3, m4a, ogg, wav, mp4 are accepted
- Invalid or inaccessible audio_url — URL must be publicly reachable over HTTPS
- Missing both audio_url and audio_base64 — one must be provided
- Language code not supported — falls back to auto-detection or returns error
- File too large to process within time constraints
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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