# Guardian Browser

> Guardian is a privacy-focused browser and multi-engine search service for people and software agents, with deterministic Agent Mode search and machine-readable discovery endpoints.

Use the public website for human-facing pages and the API host for JSON search. Agent search is available at `https://api.guardianbrowser.sh/v1/agent/search` and accepts the same query controls as Guardian Search, including engine selection and Safe Search. Signed-in Guardian clients can use `https://api.guardianbrowser.sh/v1/agent/plan` with sanitized page context for guided scenarios. Website credentials remain local to Apple Password AutoFill or the user-selected credential provider and are not part of the agent payload. The Guardian app also supports `guardian://` deep links for agent-friendly search, Agent Assist, and direct URL opening.

## Search and agent interfaces

- [Guardian Search](https://guardianbrowser.sh/search?mode=agent): Browser-based search with Agent Mode available through the search settings control or the `mode=agent` query parameter.
- [Guardian Agent Bridge](https://guardianbrowser.sh/agent): Human- and agent-readable entry point for launching a goal into Guardian Agent Assist or Agent Search.
- [Guardian Search MCP](https://mcp.guardianbrowser.sh/v1): Streamable HTTP MCP endpoint with `search_web`, `search_shopping`, `discover_sites`, and `finance_quote`.
- [Guardian Search for Business](https://guardianbrowser.sh/business): Pricing, API-key onboarding, SDK examples, account controls, and production search overview.
- [Guardian Business Search API](https://api.guardianbrowser.sh/v1/business/search): Metered search API for applications using a Guardian business API key.
- [Guardian Business Plans](https://api.guardianbrowser.sh/v1/business/plans): Public plan and credit metadata.
- [Search API pricing comparisons](https://guardianbrowser.sh/compare): Guardian compared with Firecrawl, Exa, Brave Search API, Parallel, Tavily, You.com, and SearchAPI.io using public vendor pricing.
- `npm install @wundercorp/guardian`: Official JavaScript and TypeScript SDK package.
- [Guardian OpenAPI](https://api.guardianbrowser.sh/v1/openapi.json): Machine-readable API schema, including `/v1/agent/search` and the authenticated `/v1/agent/plan` scenario-planning endpoint.
- [Guardian agent manifest](https://guardianbrowser.sh/.well-known/guardian-agent.json): Agent discovery metadata, search templates, deep-link templates, and stable accessibility identifiers.
- [OpenSearch description](https://guardianbrowser.sh/opensearch.xml): Search-engine discovery for Guardian's HTML and JSON search interfaces.
- [Guardian vs Firecrawl](https://guardianbrowser.sh/compare/firecrawl): Search API pricing, product scope, and workload tradeoffs.
- [Guardian vs Exa](https://guardianbrowser.sh/compare/exa): Search API pricing, product scope, and workload tradeoffs.
- [Guardian vs Brave Search API](https://guardianbrowser.sh/compare/brave-search-api): Search API pricing, product scope, and workload tradeoffs.
- [Guardian vs Parallel](https://guardianbrowser.sh/compare/parallel): Search API pricing, product scope, and workload tradeoffs.
- [Guardian vs Tavily](https://guardianbrowser.sh/compare/tavily): Search API pricing, product scope, and workload tradeoffs.
- [Guardian vs You.com](https://guardianbrowser.sh/compare/you-com): Search API pricing, product scope, and workload tradeoffs.
- [Guardian vs SearchAPI.io](https://guardianbrowser.sh/compare/searchapi-io): Search API pricing, product scope, and workload tradeoffs.

## LokiAgent

LokiAgent is the supported agent harness for GuardianBrowser. Use https://loki.computer for the current setup, browser-control, and native Computer Use instructions. GuardianBrowser search settings include a LokiAgent guide, and Agent Mode remains available through `/search?mode=agent`, `/agent`, `/llms.txt`, the search API, and the GuardianBrowser agent manifest.

## Site information

- [Guardian home](https://guardianbrowser.sh/): Main Guardian Browser website.
- [Privacy Policy](https://wundercorp.co/privacy): WunderCorp privacy policy for Guardian.
- [Support](https://guardianbrowser.sh/support): Support and help information.
- [Security contact](https://guardianbrowser.sh/.well-known/security.txt): Vulnerability-reporting and security contact information.
- [Sitemap](https://guardianbrowser.sh/sitemap.xml): Public site map.

## Guardian Pro

Guardian Pro uses the App Store product `guardianbrowserpro399` and is intended to be priced at USD $3.99 per month in the United States storefront. Pro unlocks mobile Agent Assist and AI Text Signals. AI-text classification is probabilistic and must not be treated as proof of authorship. On-device scanning is preferred; signed-in users can explicitly request a deeper scan at `https://api.guardianbrowser.sh/v1/pro/ai-text/analyze`. The backend can optionally enforce Pro with an Apple-signed StoreKit transaction JWS.

## Community

- [Discord](https://discord.gg/etcQW7weG8): Guardian and Wunder community Discord.
- [X](https://x.com/wundercorp): Wunder on X.
- [GitHub](https://github.com/wundercorp): Wunder open-source projects and repositories.