OpenFetch provides a verified, structured data layer between AI agents and real-world businesses. Query any business's AI passport in a single API call — structured, trusted, and always up-to-date.
How AI companies use the Horizon protocol
Enable your AI assistant to query any business's structured passport before responding to user queries. Reduces hallucinations, improves factual accuracy.
Use the Horizon registry as a trust layer for your search index. Verified businesses receive structured data directly — no scraping required.
Subscribe to registry updates for your sector. Get webhook notifications when new businesses are verified or scores change significantly.
Add a real-time trust check to your agent workflow. Before acting on any business instruction, verify their Horizon score and certified status.
RESTful · JSON · No authentication required for read queries
Query a domain's verification status, AI-ready score, and structured passport data.
GET https://open-horizon.ai/api/v1/verify/[domain]{
"domain": "example.com",
"verified": true,
"score": 100,
"breakdown": {
"readability": 100,
"actionability": 100,
"trust": 100
},
"verifiedMethods": ["dns", "pixel"],
"enterpriseRedundancy": true,
"passportUrl": "https://open-horizon.ai/passport/example.com",
"protocol": "open-horizon/v1"
}Instead of crawling a full business website (avg. 18,000 tokens), AI agents query the Horizon passport directly (avg. 280 tokens). That's a 17,720 token saving per query — across every AI assistant, every session.
Savings = N queries × (18,000 − 280) tokens = N × 17,720 tokens