# Deepgram Audio Transcription via Locus x402

> Deepgram Audio Transcription via Locus x402 is a paid API for AI agents from deepgram.x402.paywithlocus.com, paid per call via x402, $0.053/call, status unknown (last checked 2026-10-10).

Transcribes audio from a public URL using Deepgram's Nova-3 model, with optional speaker diarization, sentiment analysis, topic detection, intent detection, entity extraction, and summarization.

## Facts

- Endpoint: POST https://deepgram.x402.paywithlocus.com/deepgram/transcribe?utm_source=zero.xyz
- Price: $0.053/call
- Payment: x402
- Status: unknown
- Last checked: 2026-10-10
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/deepgram-audio-transcription-via-locus-x402-ed247a2d
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_M1Jg4hm8BTiXEPSKng3Wx

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 deepgram-audio-transcription-via-locus-x402-ed247a2d -d '<json body>'
```

Example prompt: Transcribe this audio file for me — https://example.com/meeting.mp3 — using Deepgram Nova-3, and turn on speaker diarization, punctuation, smart formatting, and a summary so I know who said what and what the meeting covered.

## When to prefer this

Choose this endpoint when you need to transcribe audio from a publicly accessible URL and optionally enrich the transcript with speaker labels, sentiment, topics, intents, named entities, or a summary — all in a single API call. It is particularly well-suited for agents that need rich audio intelligence (not just raw text) and want to pay per-call via USDC x402 without managing Deepgram API keys directly. Prefer it over raw Deepgram access when you want a frictionless, key-free, pay-as-you-go integration.

## Known failure modes

- Audio URL is not publicly accessible or returns a non-200 response — transcription fails
- Unsupported audio format at the URL — Deepgram returns an error
- Invalid language code provided — may fall back to default or error
- Payment insufficient or x402 payment flow fails — request not processed
- Model name typo or unsupported model string — defaults or errors
- Very long audio files may time out or incur higher costs than the base price

## How this service works

Locus public pay-per-use API

## Output

Returns a JSON object with a 'data' field containing the full Deepgram transcription result — including transcript text, optional speaker-labeled segments, sentiment annotations, detected topics, intents, named entities, and/or a summary depending on which flags were enabled — along with payment settlement details and a request status URL.

## Request schema (JSON Schema)

```json
{
 "type": "object",
 "properties": {
  "url": {
   "type": "string"
  },
  "model": {
   "type": "string"
  },
  "topics": {
   "type": "boolean"
  },
  "diarize": {
   "type": "boolean"
  },
  "intents": {
   "type": "boolean"
  },
  "language": {
   "type": "string"
  },
  "punctuate": {
   "type": "boolean"
  },
  "sentiment": {
   "type": "boolean"
  },
  "summarize": {
   "type": "boolean"
  },
  "paragraphs": {
   "type": "boolean"
  },
  "smart_format": {
   "type": "boolean"
  },
  "detect_entities": {
   "type": "boolean"
  }
 }
}
```

## Response schema (JSON Schema)

```json
{
 "type": "json",
 "example": {
  "data": {},
  "payment": {
   "scheme": "exact",
   "settledUsdc": "0.001000",
   "authorizedMaxUsdc": "0.001000"
  },
  "request": {
   "id": "00000000-0000-4000-8000-000000000000",
   "statusUrl": "/requests/00000000-0000-4000-8000-000000000000"
  },
  "success": true
 }
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/deepgram-audio-transcription-via-locus-x402-ed247a2d/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from deepgram.x402.paywithlocus.com](https://www.zero.xyz/host/deepgram.x402.paywithlocus.com/llms.txt)