Documentation
Hyperfence Docs
Hyperfence is a transparent proxy that sits between your application and any LLM provider.
Every prompt and response is checked, classified, and verified - without calling a second guard LLM.
Quick Start
Connect your LLM with the current provider-specific proxy URLs, then add your token and send requests as normal.
Hyperfences
How vector Hyperfences work, what's included on each plan, and how to train custom rules.
Providers
Major LLM providers are included out of the box: OpenAI, Anthropic, Gemini, DeepSeek, Grok, and more.
Analytics
See token usage, blocked events, topic trends, sentiment, and response quality - all in one place.
How it works
Hyperfence speaks the same API protocols as your LLM provider. Your application changes one value - the base URL. Requests flow through the proxy, are validated by purpose-built ML classifiers, and then forwarded to the upstream model. Validation adds milliseconds. No guard LLM. No SDK. No code changes beyond that one line.