Last updated: 2026-06-08
Snapshot: 2026-06-08 · Sites indexed: 4,282 · Live-verified MCP servers: 466 · Verification rate: 10.9%
Other agent-discovery signals: 2,378 sites publish llms.txt · 572 publish OpenAPI · 225 new candidate submissions this week.
Live data from nothumansearch.ai/digest.json — free public API, no auth, refreshed on every crawl cycle.
Of 4,282 sites that advertise MCP / agent-ready signals, only 466 (10.9%) survive a real JSON-RPC handshake to their /mcp endpoint. The rest either return HTML, time out, or never implemented the protocol correctly.
| Rank | Category | Sites Indexed | Share of Index |
|---|---|---|---|
| 1 | developer | 1,320 | 30.8% |
| 2 | ai-tools | 917 | 21.4% |
| 3 | data | 394 | 9.2% |
| 4 | finance | 187 | 4.4% |
| 5 | productivity | 172 | 4.0% |
| 6 | ecommerce | 151 | 3.5% |
| 7 | communication | 121 | 2.8% |
| 8 | security | 108 | 2.5% |
| 9 | health | 57 | 1.3% |
| 10 | jobs | 26 | 0.6% |
| 11 | education | 21 | 0.5% |
| 12 | news | 11 | 0.3% |
| 13 | spam | 1 | 0.0% |
| Rank | Domain | Name | Category | Agentic Score | MCP Verified |
|---|---|---|---|---|---|
| 1 | emadibrahim.com | Emad Ibrahim - Software Architect & Entrepreneur | ai-tools | 100 | yes |
| 2 | siteinspire.com | siteinspire.com | other | 40 | yes |
NothingHumanSearch crawls submitted URLs and auto-discovered candidates from public sources (awesome-mcp-servers, PulseMCP, llmstxt.site, curated feeds), then scores each site against seven weighted signals: llms.txt present and parseable; ai-plugin.json at /.well-known/; an OpenAPI or AsyncAPI spec at a discoverable path; an MCP manifest; a live JSON-RPC MCP handshake; documented rate-limit and auth headers; and an accessible structured API response. Sites are re-crawled weekly. Scores range 0–100; any score above 75 corresponds to a site an autonomous agent can realistically integrate without human help.
Verification means a TCP connection + HTTP POST to the declared /mcp endpoint with a JSON-RPC 2.0 initialize request, followed by a valid result response containing a protocolVersion. Sites that host a manifest but fail the handshake are counted in the index total but not in the MCP-verified total.
- Live API: https://nothumansearch.ai/digest.json (JSON, public)
- NHS MCP server: https://nothumansearch.ai/mcp (JSON-RPC, eight tools incl.
verify_mcp) - Methodology page: https://nothumansearch.ai/methodology
- Research note: https://8bitconcepts.com/research/q2-2026-mcp-ecosystem-health.html
- Sibling dataset: Top AI Companies Hiring
- Auto-regenerated: weekly via
tools/regenerate-mcp-health.py - License: CC BY 4.0 — attribution to 8bitconcepts + nothumansearch.ai