12,554 servers. Updated 2026-08-17 14:08

"Construct 3" matching MCP connectors:

H/M Agent Surface - Free MCP Tools
Five free MCP tools, including proof-before-payment preview, plus one authorized x402 pack.
Penetration Testing Security
1
MCP Kill-Chain Research — Stage 1 (Identity ≠ Behavior)A
Security research: MCP registries verify identity, not tool behavior. See gtfo.dev.
Security Penetration Testing
2