# Nexari Audio Transcription (up to 30 minutes)

> 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)

## Facts

- Endpoint: POST https://x402.nexari.cloud/transcribe/30min?utm_source=zero.xyz
- Price: $0.3/call
- Payment: x402
- Status: unknown
- Last checked: 2026-10-02
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/nexari-audio-transcription-up-to-30-minutes-2ccd1090
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_WFeUkwLvzr3AwlQeDo416

Status and success rate cover calls made through Zero and Zero's own probes. Third-party monitors may report differently.

## How to call it through Zero

Zero handles the 402 payment challenge and records the run. With the Zero CLI installed (`npm i -g @zeroxyz/cli`):

```sh
zero fetch --capability nexari-audio-transcription-up-to-30-minutes-2ccd1090 -d '<json body>'
```

Example prompt: Can you transcribe this 25-minute German meeting recording for me? The audio is at https://files.mycompany.de/meeting-2024.mp3 — we're acting on behalf of Müller GmbH, and the language is German.

## When to prefer this

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.

## Known failure modes

- 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

## 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.

## Request schema (JSON Schema)

```json
{
 "type": "object",
 "properties": {
  "filename": {
   "type": "string",
   "description": "Dateiname mit Endung, z. B. memo.m4a"
  },
  "language": {
   "type": "string",
   "description": "de (Standard), en, auto ..."
  },
  "audio_url": {
   "type": "string",
   "description": "HTTPS-URL der Audiodatei / public URL of the audio file"
  },
  "audio_base64": {
   "type": "string",
   "description": "Audio als Base64 / audio as base64"
  },
  "num_speakers": {
   "type": "integer",
   "description": "Nur /speakers: bekannte Sprecherzahl (1-10), verbessert die Trennung"
  },
  "business_name": {
   "type": "string",
   "description": "Unternehmen, für das gehandelt wird (nur B2B)"
  },
  "privacy_contact": {
   "type": "string",
   "description": "E-Mail für Datenschutz-Meldungen (Art. 33 DSGVO)"
  },
  "accept_terms_hash": {
   "type": "string",
   "description": "SHA-256 der AGB aus /legal/terms.json"
  }
 }
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/nexari-audio-transcription-up-to-30-minutes-2ccd1090/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from x402.nexari.cloud](https://www.zero.xyz/host/x402.nexari.cloud/llms.txt)