# Unprofane

> A profanity and toxicity API that is hard to fool: one call answers whether a text can be shown (profanity, insults, slurs, threats, sexual content, sexual content involving a minor, which every policy blocks, and rudeness and the writer's own self-harm, which a standard policy holds for review), with the evidence (which words, where, how they were disguised, how severe), a one-sentence reason and a censored version. Byte-compatible Perspective API drop-in. No request text is stored.

Base URL: https://api.unprofane.com. Auth: `Authorization: Bearer up_live_…`. The MCP server is at https://api.unprofane.com/mcp. The full docs in one file: https://unprofane.com/llms-full.txt

## Start
- [Overview](https://unprofane.com/docs/)
- [Quickstart](https://unprofane.com/docs/quickstart/)
- [Examples](https://unprofane.com/docs/examples/)

## Guides
- [Contexts](https://unprofane.com/docs/contexts/): What the text is changes how it is read. Usernames are split into words and checked backwards; comments are read as prose.
- [Policies](https://unprofane.com/docs/policies/): How strict to be. Four presets, or your own map of category to allow, review or block, saved on the project.
- [Evasion tags](https://unprofane.com/docs/evasion-tags/): Every way a writer disguises a word is normalised and named in the response, so you can see how the filter was fooled and choose what to do about it.
- [Engine versions](https://unprofane.com/docs/engine-versions/): Versions are dated and immutable. Pin one per project or per request, read the changelog, and replay a sample before you move.
- [Lists](https://unprofane.com/docs/lists/): Allow, block and reserved lists per project, from the dashboard or the API. Terms are folded the way the engine folds text, so a listed word matches its disguises too.
- [Publishable keys](https://unprofane.com/docs/publishable-keys/): A key that may live in a browser or a game client, limited to /v1/check and to the origins you allow, with a per-address limit.
- [Edge-only projects](https://unprofane.com/docs/edge-only/): A project setting that guarantees no text is ever sent to a model. The model client is not constructed, so no code path can reach it.
- [Rate limits and quotas](https://unprofane.com/docs/rate-limits/): Bursts per key per minute by plan, the monthly allowance, what happens past it, how test keys are capped, and what a key does with no plan.
- [Batch checks](https://unprofane.com/docs/batch/): Up to 100 texts in one request, each with its own id, answered in order. One bad item never fails the batch.
- [Feedback](https://unprofane.com/docs/feedback/): Send a correction when a result is wrong. Corrections feed the lexicon, the innocent list and the calibration, never a silent change inside a pinned version.
- [Perspective migration](https://unprofane.com/docs/perspective-migration/): Change the base URL and keep your client. The same path, the same JSON, the same errors, the key as ?key=.
- [Privacy for developers](https://unprofane.com/docs/privacy/): What the API keeps and what it never keeps, in the terms a developer needs to answer their own users and their own lawyer.
- [SDKs](https://unprofane.com/docs/sdks/): The JavaScript and Python clients: typed, no dependencies beyond the runtime, retries with jitter, and a batch helper for any number of texts.
- [MCP server](https://unprofane.com/docs/mcp/): The same engine as a Model Context Protocol server, for coding agents and assistants. Three tools, the same keys, Streamable HTTP.

## Reference
- [API reference](https://unprofane.com/docs/api/)
- [Errors](https://unprofane.com/docs/errors/)
- [openapi.json](https://unprofane.com/openapi.json)
- [llms-full.txt](https://unprofane.com/llms-full.txt)
- [OpenAPI document](https://api.unprofane.com/openapi.json)

## Optional
- [Benchmarks](https://unprofane.com/bench/)
- [The Scunthorpe Test: disguised spellings and innocent words, a public split to download](https://unprofane.com/bench/scunthorpe/)
- [Head to head: Unprofane, the Perspective API, OpenAI moderation and the npm filters on the same judged texts](https://unprofane.com/bench/head-to-head/)
- [Pricing](https://unprofane.com/pricing/)
- [Perspective API migration](https://unprofane.com/perspective/)
- [Username recipes](https://unprofane.com/usernames/)
- [Privacy](https://unprofane.com/legal/privacy/)