Translation API

Last updated: 2026-09-06

The Pela Translation API is a single endpoint — POST /v2/translate — backed by the same engine as the Pela apps. Send text, a target language, and a Pela API key.

Base URL and authentication

https://app.pelapela.app

Send your key in the Authorization header:

Authorization: Bearer pela_xxxxxxxxxxxx

Create and revoke keys in Settings → API keys (app or web portal). A new key is shown only once — store it securely. Never put a key in a support message.

Translate text

POST /v2/translate

Field	Type	Description
`text` (required)	string or string[]	One or more strings. Max 50 per request.
`target_lang` (required)	string	`EN`, `ES`, `JA`, `ZH`, `KO`, `PT`, `FR`, `IT`, `DE`. Regional variants like `EN-US` accepted.
`source_lang` (optional)	string	Omit to auto-detect.

Example

curl -X POST https://app.pelapela.app/v2/translate \
  -H "Authorization: Bearer pela_xxxxxxxxxxxx" \
  -H "Content-Type: application/json" \
  -d '{ "text": ["Hello, how are you?"], "target_lang": "JA" }'

{
  "translations": [
    { "detected_source_language": "EN", "text": "こんにちは、お元気ですか？" }
  ]
}

Errors

Status	Meaning
400	Invalid request or missing `target_lang`
401	Missing authorization header
403	Invalid or revoked API key
413	Text too long
429	Rate limited — retry with backoff
456	Quota exceeded
500	Internal error — retry, then contact support

Billing

API usage draws on your credit balance. See the plan and balance in Settings → billing. Pay-as-you-go top-ups are available for accounts without a subscription.

Not the same as the MCP server

The PelaPela MCP server tunes how a third-party LLM translates. This API performs the translation directly.