# NexusAPI Audio Transcription

> NexusAPI Audio Transcription is a paid API for AI agents from nexus-api-virid.vercel.app, paid per call via x402, $0.026977/call, status unknown (last checked 2026-09-15).

Transcribes audio content into text using AI-powered speech recognition

## Facts

- Endpoint: POST https://nexus-api-virid.vercel.app/api/ai/audio/transcribe
- Price: $0.026977/call
- Payment: x402
- Status: unknown
- Last checked: 2026-09-15
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/nexusapi-audio-transcription-cf484921
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_kBn5Is_CCFVeFRAMjnLAj

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 nexusapi-audio-transcription-cf484921 -d '<json body>'
```

Example prompt: Can you transcribe this audio recording for me? Here's the file — I need the spoken words converted to plain text.

## When to prefer this

Choose this endpoint when you need a pay-per-call, no-API-key audio transcription service that bills in USDC on Base. Ideal for AI agents that need on-demand transcription without managing subscription credentials.

## Known failure modes

- Unsupported audio format returns an error
- Audio file too large or too long may fail or time out
- Poor audio quality may result in inaccurate transcription
- Missing or invalid input returns a 400-level error
- Payment failure via x402 prevents access to the endpoint

## How this service works

Crypto, AI, Social Media, Finance, Weather, Tools &amp; more. Pay per call in USDC on Base. No API keys.

## Output

A text transcription of the submitted audio input, converting spoken words into readable plain text output.

## Request schema (JSON Schema)

```json
{
 "type": "object",
 "properties": {
  "query": {
   "type": "string",
   "description": "Search query or input parameter"
  }
 }
}
```

## Response schema (JSON Schema)

```json
{
 "type": "object",
 "description": "API response data"
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/nexusapi-audio-transcription-cf484921/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from nexus-api-virid.vercel.app](https://www.zero.xyz/host/nexus-api-virid.vercel.app/llms.txt)