# tunnel — AI-visibility platform

tunnel makes businesses findable and citable by LLMs and AI agents:
websites get machine-readable knowledge generated from a crawl, and
merchants WITHOUT a website get first-class profiles in the public
knowledge base, human-reviewed and directly contactable.

## Start here

- Knowledge-base guide (read this first): https://api.tunnelpowered.com/api/kb/llms.txt
- Search the KB: https://api.tunnelpowered.com/api/kb/search?q=<name or topic>
- Browse every public profile: https://api.tunnelpowered.com/b/
- Sitemap of all public profiles: https://api.tunnelpowered.com/sitemap.xml
- MCP server (Streamable HTTP): POST https://api.tunnelpowered.com/api/mcp
- A2A v1.0 agent (JSONRPC binding, read-only): POST https://api.tunnelpowered.com/api/a2a
- A2A Agent Card: https://api.tunnelpowered.com/.well-known/agent-card.json
- OpenAPI 3.1 description of the public surface: https://api.tunnelpowered.com/openapi.json

## Trust

- Merchant verification status + signed attestation: https://api.tunnelpowered.com/api/v1/merchants/<slug>/verification
- Hash-chained transparency log: https://api.tunnelpowered.com/api/v1/trust-log/head
- Attestation public key: https://api.tunnelpowered.com/.well-known/tunnel-trust.json