# GPT-5.6 Luna Professional Translation API

> GPT-5.6 Luna Professional Translation API is a paid API for AI agents from gpt55.558686.xyz, paid per call via x402, $0.145/call, status unknown (last checked 2026-10-19).

Translates text from one language to another with professional quality, using GPT-5.6 Luna via an x402 USDC micropayment per call.

## Facts

- Endpoint: POST https://gpt55.558686.xyz/v1/tools/translate/professional?utm_source=zero.xyz
- Price: $0.145/call
- Payment: x402
- Status: unknown
- Last checked: 2026-10-19
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/gpt-5-6-luna-professional-translation-api-27c723f2
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_l0WRXiGVRjoOayQhpjgOG

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 gpt-5-6-luna-professional-translation-api-27c723f2 -d '<json body>'
```

Example prompt: Can you professionally translate the following product description from English into French — keep it under 500 tokens: 'Our premium coffee maker brews rich, aromatic coffee in under 3 minutes with one-touch operation.'

## When to prefer this

Choose this endpoint when you need professional-quality language translation paid per-call via USDC micropayment with no subscription required, especially when integrating into an autonomous agent workflow that handles its own x402 payments. It suits short-to-medium text translation tasks (up to 700K chars) where GPT-class quality matters more than raw speed or bulk pricing.

## Known failure modes

- Text exceeds 700,000 character limit — request rejected
- target_language not specified — validation error
- max_tokens exceeds 4096 — capped or rejected
- Payment not settled via x402 — 402 Payment Required response
- Unsupported or unrecognized language code — translation may fail or return error
- Empty input text — minLength validation error

## How this service works

GPT-5.6 Luna API Base USDC and OpenAI-compatible x402 chat: one request for $0.00293, paid by browser wallet or a quote-first agent fallback.

## Output

Returns a JSON object containing the translated text as a string under the 'text' key, rendered in the target language with professional quality.

## Request schema (JSON Schema)

```json
{
 "type": "object",
 "properties": {
  "text": {
   "type": "string",
   "maxLength": 700000,
   "minLength": 1
  },
  "max_tokens": {
   "type": "integer",
   "maximum": 4096,
   "minimum": 1
  },
  "source_language": {
   "type": "string"
  },
  "target_language": {
   "type": "string",
   "minLength": 1
  }
 }
}
```

## Response schema (JSON Schema)

```json
{
 "type": "json",
 "example": {
  "text": "Generated text."
 }
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/gpt-5-6-luna-professional-translation-api-27c723f2/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from gpt55.558686.xyz](https://www.zero.xyz/host/gpt55.558686.xyz/llms.txt)