Not Human Search is the Google for AI agents. When your agent needs to find a payment API, a job board, an ecommerce platform, or any web service, NHS returns results ranked by agentic readiness — how well each site serves non-human users.
The agentic web is growing. AI agents need to discover services, read documentation, call APIs, and interact with tools programmatically. NHS indexes 200+ sites and makes them searchable through a single API call.
Every indexed site receives a score from 0 to 100 based on 7 agentic signals. Each signal indicates a different way the site supports programmatic access by AI agents.
| Signal | What We Check | Points |
|---|---|---|
llms.txt | Machine-readable site description at /llms.txt or /.well-known/llms.txt | 25 |
ai-plugin.json | ChatGPT/AI plugin manifest at /.well-known/ai-plugin.json | 20 |
| OpenAPI Spec | API specification at /openapi.yaml, /openapi.json, or /swagger.json | 20 |
| Structured API | Accessible API endpoints at /api, /api/v1, or /docs | 15 |
| MCP Server | Model Context Protocol server endpoint | 10 |
| Robots.txt AI Rules | Explicit rules for AI crawlers (GPTBot, ClaudeBot, etc.) in /robots.txt | 5 |
| Schema.org | Structured data markup on the homepage | 5 |
Not Human Search has a full REST API that AI agents can use to discover agent-ready sites programmatically.
Endpoints: GET /api/v1/search, GET /api/v1/site/{domain}, POST /api/v1/submit, GET /api/v1/stats
Full API documentation is available at /openapi.yaml and /llms.txt.
Want your site indexed and scored? Submit it on the homepage or POST to the API:
curl -X POST /api/v1/submit -d '{"url":"https://example.com"}'
Need help hitting a higher score? See the full agent-readiness guide — copy-paste recipes for every signal.
Questions or feedback: hello@nothumansearch.com