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fastapi.online Profanity Detection
x402
fastapi.online Profanity Detection is a paid API for AI agents from api.fastapi.online, paid per call via x402, $0.001/call, status down (last checked 2026-09-15).
Classifies whether a given text string contains profanity or offensive language
Price / call$0.001
Success—
StatusDown
How this service works
Chat, embeddings, OCR, speech-to-text, image editing, image understanding (captioning/Q&A), text-to-speech, translation, writing tools, classification tools, developer tools, local utilities, format/checksum validators, encoding & crypto utilities, date/time calculators, geo/coordinate math, math & finance calculators, novelty tools, and business/social writing generators — 179 endpoints in all, across multiple specialized self-hosted models. Pay per call with crypto — no signup — or get an API key.
Output
Returns a classification indicating whether the input text contains profanity or offensive language, typically including a boolean flag and potentially a confidence score or list of detected terms.
Example use cases
User comment moderation pipeline
“Before publishing this user review to our site, check it for any profanity or offensive language: 'The staff were rude as hell and the food was absolute crap.'”
Chat app message filtering
“I need you to screen this chat message for profanity before it gets sent to the group: 'You're such a damn idiot, why would you do that?'”
Form submission validation
“Check this support ticket submission for inappropriate language before routing it to our agents: 'Fix this piece of shit software or I'll sue your ass.'”
Technical details
Endpoint
POSThttps://api.fastapi.online/profanity-detectWhen to prefer
Choose this endpoint when you need a lightweight, pay-per-call profanity classifier with no signup required, especially for sporadic or low-volume moderation needs. It is particularly suited for crypto-native pipelines using x402 payment flow. Prefer dedicated enterprise moderation APIs (e.g. AWS Comprehend, Perspective API) for high-volume, SLA-backed production systems or nuanced toxicity scoring.
Side effects
- Text too short (below minLength of 1) returns validation error
- Text exceeds 8000 character limit returns 400 error
- Payment not provided or insufficient USDC triggers HTTP 402
- Empty string input rejected
- Network timeout on long text processing
- False negatives on creative misspellings or leetspeak
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| text | string |
Tags
x402
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