Translate text. POST { text, targetLanguage, sourceLanguage? } — language codes are BCP-47 (e.g. "en", "es-MX", "zh-Hans"). Source auto-detected when omitted. Returns { text, targetLanguage, detectedSourceLanguage, confidence (high|medium|low) }. Best for short-to-medium passages; chunk long documents on your side.
/api/ai/translatePAYMENT-SIGNATURE.The translate API is a pay-per-call ai endpoint built for AI agents and autonomous software. Translate text.
There is no signup and no API key. An agent (or any HTTP client) hits the endpoint, receives an x402 "402 Payment Required" challenge, signs a sub-cent USDC payment on Base or Solana, and retries — the data comes back on the paid request. That makes it a drop-in translate data source for an agent tool-use loop, an MCP host, or a backend that needs ai data on demand without onboarding to yet another vendor portal.
| Name | Type | Description |
|---|---|---|
textrequired | string | Source text to translate (1-6000 chars). min 1 chars · max 6000 chars |
targetLanguagerequired | string | Target language as BCP-47 (e.g. "en", "es-MX", "zh-Hans"). min 2 chars · max 20 chars |
sourceLanguage | string | Source language as BCP-47. Auto-detected when omitted. min 2 chars · max 20 chars |
# 1. Probe the endpoint with no auth — receive 402 with PaymentRequirements
curl -sS -X POST 'https://2s.io/api/ai/translate' \
-H 'Content-Type: application/json' \
-d '{"text":"example","targetLanguage":"xx","sourceLanguage":"xx"}'
# 2. Sign the EIP-3009 transferWithAuthorization for the advertised price +
# payTo from the 402 envelope, then retry with PAYMENT-SIGNATURE:
curl -sS -X POST 'https://2s.io/api/ai/translate' \
-H 'Content-Type: application/json' \
-H 'PAYMENT-SIGNATURE: <base64-json-payload>' \
-d '{"text":"example","targetLanguage":"xx","sourceLanguage":"xx"}'
# Or just use the canonical runner — it handles the whole loop:
# EVM_PRIVATE_KEY=0x... node --env-file=.env.local \
# --experimental-strip-types scripts/x402-pay.ts \
# 'https://2s.io/api/ai/translate'import { TwoS } from '@2sio/sdk'
const client = new TwoS({
privateKey: process.env.EVM_PRIVATE_KEY as `0x${string}`,
})
const result = await client.ai.translate({
"text": "example",
"targetLanguage": "xx",
"sourceLanguage": "xx"
})
console.log('endpoint:', result.endpoint)
console.log('cost:', result.costUsd, 'USDC')
console.log('tx:', result.settlement?.txHash)
console.log('data:', result.data)import os
from twosio import TwoS
client = TwoS(private_key=os.environ["EVM_PRIVATE_KEY"])
result = client.ai.translate(text="example", targetLanguage="xx", sourceLanguage="xx")
print("endpoint:", result.endpoint)
print("cost:", result.cost_usd, "USDC")
print("tx:", (result.settlement or {}).get("tx_hash"))
print("data:", result.data)// 1. Add @2sio/mcp to your MCP host config (Claude Desktop example below).
// EVM_PRIVATE_KEY funds x402 payments per call.
// claude_desktop_config.json
{
"mcpServers": {
"2sio": {
"command": "npx",
"args": ["-y", "@2sio/mcp"],
"env": { "EVM_PRIVATE_KEY": "0x..." }
}
}
}
// 2. Once the server is running, agents call this tool via standard MCP:
{
"jsonrpc": "2.0",
"id": 1,
"method": "tools/call",
"params": {
"name": "ai.translate",
"arguments": {
"text": "example",
"targetLanguage": "xx",
"sourceLanguage": "xx"
}
}
}| Field | Type | Description |
|---|---|---|
ok | boolean | one of: true |
items | array | |
total | integer | Total matching rows upstream; null when unknown. |
source | object |
{
"ok": true,
"items": [
{
"text": "example",
"targetLanguage": "example",
"detectedSourceLanguage": "example",
"confidence": "high"
}
],
"total": 1,
"source": {
"provider": "example",
"url": "example",
"license": "example"
}
}