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Synapse Language Detection API
x402
Synapse Language Detection API is a paid API for AI agents from anibalb.duckdns.org, paid per call via x402, $0.002/call, status unknown (last checked 2026-10-31).
Detects the language of a given text input, returning the ISO language code, language name, and confidence level
Price / call$0.002
Success—
StatusUnknown
How this service works
Public data and utility APIs paid per call in USDC on Base (x402). No accounts, no API keys. 174 routes: crypto/equity data, onchain reads, DNS/email/security intel, geo/weather, x402 payment diagnostics, dev utilities and more.
Output
Returns a JSON object with three fields: 'iso' (ISO 639-1 language code, e.g. 'en'), 'language' (full English name of the detected language, e.g. 'English'), and 'confidence' (string indicator such as 'high', 'medium', or 'low').
Example use cases
Routing multilingual user messages
“I'm getting messages from users and I need to know what language each one is in before routing them to the right support team — can you detect the language of this message: 'Necesito ayuda con mi cuenta'?”
Pre-translation language check
“Before I send this text to the translation API, can you detect what language it's in and give me the ISO code? The text is: 'Ich brauche Hilfe mit meiner Bestellung.'”
Content moderation language tagging
“I have a user-submitted comment and need to tag it with its language before storing it — what language is 'Questo prodotto è fantastico!' and how confident are you?”
Technical details
Endpoint
GEThttps://anibalb.duckdns.org/x402/lang-detect?utm_source=zero.xyzWhen to prefer
Choose this endpoint when you need a lightweight, pay-per-call language detection with no account setup, returning ISO code plus a confidence level. It is ideal for agents that occasionally need language identification without committing to a monthly subscription API, especially when operating within an x402 payment-enabled workflow on Base.
Side effects
- Missing or empty 'text' query parameter returns an error or ambiguous result
- Very short text (single word or character) may yield low confidence or incorrect detection
- Mixed-language text may return only the dominant language
- Rare or constructed languages may not be recognized
- Network or payment failure returns HTTP 402 if USDC payment is not attached correctly
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| inputrequired | object | |
| output | object |
Output
Schema · Response
{
"type": "json",
"example": {
"iso": "en",
"language": "English",
"confidence": "high"
}
}Tags
x402
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