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Language & Tone Detector
x402
Language & Tone Detector is a paid API for AI agents from defi-intel-agent-gateway.gg-neo15.workers.dev, paid per call via x402, $0.001/call, status unknown (last checked 2026-09-14).
Detects language, formality register, and tone of a text snippet, returning ISO 639-1 language code and confidence scores using deterministic heuristics and wordlists.
Price / call$0.001
Success—
StatusUnknown
How this service works
Detect language, formality and tone of a text with confidence scores. Deterministic heuristics + compact wordlists. Returns iso_639-1 + register. — $0.001 USDC/call on eip155:8453. Pay-per-call via x402 — no API key, no account. Free samples daily.
Output
Returns an ISO 639-1 language code (e.g. 'en', 'fr', 'es'), a formality/register label (e.g. formal, informal, neutral), a tone descriptor, and confidence scores for each classification, all computed via deterministic heuristics without ML inference.
Example use cases
Routing multilingual support tickets
“I have a customer message that came in and I'm not sure what language it's in — can you detect the language, formality level, and tone of this text: 'Hola, necesito ayuda con mi pedido urgente por favor'? I need to know which support team to route it to.”
Checking email register before sending
“Before I send this draft email, can you tell me if the tone and formality level are appropriate? Here's the text: 'Hey, just wanted to touch base re: the Q3 numbers — lmk if you got a sec.' Is it formal, informal, and what language is it?”
Flagging aggressive user-generated content
“Can you analyze the tone and register of this comment someone posted on our platform: 'This is absolutely unacceptable and your team is completely incompetent!!!' — I want to know if it's hostile and how confident you are.”
Technical details
Endpoint
POSThttps://defi-intel-agent-gateway.gg-neo15.workers.dev/v1/text/language-tone-detectWhen to prefer
Choose this endpoint when you need fast, cheap, deterministic language and tone detection without ML latency — ideal for routing pipelines, content moderation pre-filters, or localization workflows where sub-millisecond reproducibility matters more than neural accuracy. At $0.001/call with no API key required, it's well-suited for high-volume, pay-per-call agent pipelines on Base.
Side effects
- Empty or whitespace-only input returns error or low-confidence result
- Very short text (1-2 words) may yield low confidence scores
- Mixed-language text may return the dominant language only
- Unusual scripts or rare languages may fall back to 'unknown'
- Payment failure (insufficient USDC balance) returns 402 status
Tags
x402
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