> ## Documentation Index
> Fetch the complete documentation index at: https://pasteguard.com/docs/llms.txt
> Use this file to discover all available pages before exploring further.

# Introduction

> AI gets the context. Not your secrets. Open-source privacy proxy for OpenAI, Anthropic, and any AI.

PasteGuard automatically hides names, emails, and API keys before you send prompts to AI. Your data never leaves your machine.

Detects 30+ types of sensitive data across 24 languages.

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  <img className="block dark:hidden" src="proxy.php?url=https://mintcdn.com/pasteguard/n91bKVZxJdh1QbnG/images/comparison-light.png?fit=max&auto=format&n=n91bKVZxJdh1QbnG&q=85&s=8833f1686f7cad83c78ec9283fd0105f" alt="PasteGuard Comparison" width="1816" height="768" data-path="images/comparison-light.png" />

  <img className="hidden dark:block" src="proxy.php?url=https://mintcdn.com/pasteguard/n91bKVZxJdh1QbnG/images/comparison-dark.png?fit=max&auto=format&n=n91bKVZxJdh1QbnG&q=85&s=cdda0d068e2a8dd168b6e45b9781ef45" alt="PasteGuard Comparison" width="1816" height="768" data-path="images/comparison-dark.png" />
</Frame>

## Works Everywhere

<CardGroup cols={2}>
  <Card title="Chat" icon="comment" href="proxy.php?url=/use-cases/chat">
    ChatGPT, Claude, Gemini
  </Card>

  <Card title="Apps" icon="table-columns" href="proxy.php?url=/use-cases/apps">
    Open WebUI, LibreChat
  </Card>

  <Card title="Coding Tools" icon="code" href="proxy.php?url=/use-cases/coding-tools">
    Cursor, Claude Code, Copilot, Windsurf
  </Card>

  <Card title="API Integration" icon="plug" href="proxy.php?url=/use-cases/api-integration">
    OpenAI SDK, Anthropic SDK, LangChain
  </Card>
</CardGroup>

## Two Privacy Modes

| Mode      | How it works                                                                                    |
| --------- | ----------------------------------------------------------------------------------------------- |
| **Mask**  | Replace PII with placeholders, send to OpenAI or Anthropic, restore in response                 |
| **Route** | PII requests stay on your local LLM (Ollama, vLLM, llama.cpp), others go to OpenAI or Anthropic |

PasteGuard runs on your servers. Personal data never leaves your infrastructure, and the LLM provider never sees real names, emails, or secrets.

## Next Steps

<CardGroup cols={2}>
  <Card title="Quickstart" icon="rocket" href="proxy.php?url=/quickstart">
    Run PasteGuard as a local proxy
  </Card>

  <Card title="Configuration" icon="gear" href="proxy.php?url=/configuration/overview">
    Customize detection and providers
  </Card>
</CardGroup>


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