The Profanity API
The problem with existing content moderation: Every developer who's built profanity filtering knows the frustration. Traditional filters either flag "assistant" because it contains "ass," or miss obviously toxic content because they're just matching keywords. They can't tell the difference between "I'll destroy you in this game" (friendly trash talk) and an actual threat. How The Profanity API solves this: I built a 5-layer detection pipeline that analyzes content progressively: Blocklist (L0): Your custom blocklist for instant flagging Static (L1): Exact match against known profanity…
The Profanity API launched on January 31, 2026 with 9 votes, #1,189 of 14,584 launches that month and more than 90% of that year's launches.
What it does
The Profanity API — fast, context-aware, and affordable content moderation for any app. It uses a 5-layer detection pipeline (L0–L4), starting with instant keyword matching and escalating to LLM-powered intent analysis only when needed. Includes a tuning playground, developer-friendly docs, ultra-low latency, and transparent pricing with a free tier.
Intelligent profanity detection that understands context. 5-layer analysis pipeline, 13 intent categories, and 12 context types. Built for developers who need accurate context-aware, ai-powered content moderation.
In the maker’s words, at launch
The problem with existing content moderation: Every developer who's built profanity filtering knows the frustration. Traditional filters either flag "assistant" because it contains "ass," or miss obviously toxic content because they're just matching keywords. They can't tell the difference between "I'll destroy you…
Does a similar job
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ModerateHatespeech2022 · moderatehatespeech.com · ▲85Free toxicity detection for content moderation via AI
Profanity & Toxicity Detection2021 · rapidapi.com · ▲60Profanity & toxicity detection for user-generated content
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