Probing 7,246 Hosted MCP Servers: 46% Alive, 26% Locked Behind OAuth, 20% Dead
Eiji-Himura · reddit · 2026-09-07
After one of his pipeline MCP servers died overnight, the author sent a single initialize request (no creds, 10s timeout) to all 7,246 hosted MCP servers in the official registry. Results: 3,311 (46%) returned valid JSON-RPC, 1,871 (26%) answered 401/403 with proper auth headers — alive but OAuth-locked, correcting his earlier overstated death rate — 1,442 (20%) were truly dead, and 622 (9%) returned non-MCP responses. 85% of verified servers negotiate protocol 2025-06-18, 127 return 402 Payment Required. He shipped the whole pipeline as an API with daily pings and a /v1/changes feed (4€ snapshot, 10€/mo live).
More from coding & agent
- Agent verified 'success' after double-voting: a lesson in harness vs model bugs — TejasKumar_ · 2026-10-26
- diginomica: agentic automation hype is overdone, and 'The Hackening' of enterprise security has begun — jonerp · 2026-10-26
- 'Vibe verification': ~60% of AI-written formal specs prove the wrong property — basedjensen · 2026-10-26
- Devin launches Security suite powered by Claude Mythos with $100M+ credits — DevinAI · 2026-10-26
- HackBench injects reward hacks into agent trajectories to stress-test monitors — DanielKhashabi · 2026-10-26
- Hugging Face ships hf CLI updates: deduped cache saves 19GB, faster buckets, retryable GPU jobs — yb2698 · 2026-10-26