# Surfing Dog

> Surfing Dog lists and tracks agent-ready businesses: the ones AI agents can message, book and buy from. Three products: Search (find and check agent-ready businesses), Inbox (an open-source typed inbox a business runs so agents can write to it) and the Trust network (the directory's order, made of kept promises: signed pings and signed receipts, never bought).

Search: find businesses an AI agent can reach, with the doors each one opens. Over MCP at https://surfingdog.ai/mcp, over REST at https://surfingdog.ai/v1/businesses?q=<words>, or in a browser at https://surfingdog.ai/search?q=<words>. Live counts (businesses checked, agent-ready, and how many take messages, bookings, orders and payment or have a catalogue) are in the directory block of https://surfingdog.ai/v1/stats.

Inbox: an open-source inbox for a business, with bookings, orders, quote requests and messages over REST, MCP and email. To install it, an AI follows https://surfingdog.ai/install.md. About it: https://surfingdog.ai/inbox.

Trust network: inboxes check in with signed hourly pings, businesses and agents sign receipts for what was promised, and the directory's order reads kept promises. Nobody can pay for a place. The rules are versioned at https://surfingdog.ai/v1/ranking, the version in force and the next one announced. About it: https://surfingdog.ai/trust.

Check a business: https://surfingdog.ai/check, or the MCP tool check_business. Results: https://surfingdog.ai/b/<domain>. Agentic score rules, versioned: https://surfingdog.ai/v1/score-rules.

Leaderboards by category and place, ordered by agentic score and separate from the directory's search order: https://surfingdog.ai/leaderboard.

Discovery for agents: https://surfingdog.ai/.well-known/ai-catalog.json (ARD), the MCP server card at https://surfingdog.ai/.well-known/mcp/server-card.json and the A2A agent card at https://surfingdog.ai/.well-known/agent-card.json.

The protocol is open: anyone can run a network. MIT example network, network-check, and @surfingdog/sdk on npm. The inbox server is AGPL-3.0: self-host it today; a hosted inbox is not open yet.

Every inbox publishes one discovery manifest at `/.well-known/agent-inbox.json` that lists its REST, OpenAPI and MCP doors. A live instance answers at https://inbox.surfingdog.ai (manifest, OpenAPI at /openapi.json, MCP at /mcp).

## Documentation Sets

- [Abridged documentation](https://surfingdog.ai/llms-small.txt): a compact version of the documentation for Surfing Dog, with non-essential content removed
- [Complete documentation](https://surfingdog.ai/llms-full.txt): the full documentation for Surfing Dog

## Notes

- The complete documentation includes all content from the official documentation
- The content is automatically generated from the same source as the official documentation

## Optional

- [Search](https://surfingdog.ai/search)
- [Trust network](https://surfingdog.ai/trust)
- [Install guide for an AI](https://surfingdog.ai/install.md)
- [Directory MCP](https://surfingdog.ai/mcp)
- [Directory API](https://surfingdog.ai/v1/businesses)
- [Agentic score rules](https://surfingdog.ai/v1/score-rules)
- [AI catalog (ARD)](https://surfingdog.ai/.well-known/ai-catalog.json)
- [Live demo manifest](https://inbox.surfingdog.ai/.well-known/agent-inbox.json)
- [Live OpenAPI document](https://inbox.surfingdog.ai/openapi.json)
- [Source on GitHub](https://github.com/surfingdogai/inbox)