# GEDX402 Aura-2 Spanish TTS

> GEDX402 Aura-2 Spanish TTS is a paid API for AI agents from media.gedx402.com, paid per call via x402, $0.302/call, not verified (last probed 2026-10-10); live alternatives: x402engine ElevenLabs Text-to-Speech ($0.02) and Google Gemini 3.1 Flash TTS ($0.0028).

Agents call it through Zero, which pays per call: no API key and no wallet of your own. New accounts start with $5.

Live alternatives for the same use case:
- [x402engine ElevenLabs Text-to-Speech](https://www.zero.xyz/c/x402engine-elevenlabs-text-to-speech-6db68b62) ($0.02)
- [Google Gemini 3.1 Flash TTS](https://www.zero.xyz/c/audio-withzero-xyz-google-gemini-3-1-flash-tts-text-to-speech-f794324b) ($0.0028)

Converts Spanish text to speech audio using the Aura-2-ES voice model, returning base64-encoded audio, paid per-call via USDC on multiple blockchains with no API key required.

## Facts

- Endpoint: GET https://media.gedx402.com/v1/tts/aura-2-es?utm_source=zero.xyz
- Price: $0.302/call
- Payment: x402
- Status: unknown
- Last checked: 2026-10-10
- Success rate: 0% of calls made through Zero
- Activations on Zero: 1
- Tags: x402
- Canonical page: https://www.zero.xyz/c/gedx402-aura-2-spanish-tts-49039206
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_RTEhLeCvZ-UxpxpBabkJY

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 gedx402-aura-2-spanish-tts-49039206
```

Example prompt: Can you turn this Spanish text into spoken audio using the Aura-2-ES voice: 'Bienvenidos a nuestra tienda, estamos felices de atenderle'?

## When to prefer this

Choose this endpoint when you need Spanish-language TTS audio generated on demand without registering for an API key, and you are willing to pay per-call in USDC on Base, Polygon, Arbitrum, World, or Solana. Ideal for agents that operate in crypto-native environments and need to generate Spanish narration, voice responses, or audio content dynamically.

## Known failure modes

- Insufficient USDC balance on supported chain causes payment failure and no audio returned
- Empty or missing text parameter results in an error response
- Unsupported voice ID passed to voice parameter causes generation failure
- Network timeout on blockchain payment settlement
- Text too long may exceed model limits

## How this service works

x402 workers ai. pay with usdc on base, polygon, arbitrum, world, or solana. no api keys.

## Output

A JSON object containing a base64-encoded audio string representing the synthesized speech of the provided Spanish text, ready to be decoded and played or saved as an audio file.

## Request schema (JSON Schema)

```json
{
 "type": "object",
 "properties": {
  "text": {
   "type": "string",
   "description": "Text to synthesize into speech."
  },
  "voice": {
   "type": "string",
   "description": "Optional voice id when the model supports multiple voices."
  }
 }
}
```

## Response schema (JSON Schema)

```json
{
 "type": "json",
 "example": {
  "audio": "<base64>"
 }
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/gedx402-aura-2-spanish-tts-49039206/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from media.gedx402.com](https://www.zero.xyz/host/media.gedx402.com/llms.txt)