MCP Security Catalog

35278 servers · 2181 danger · 2502 warn · scanner v1.6.0. Continuously scanned from the official MCP registry.

Score	Server	Publisher	Description	Findings	Frameworks	Source	Scanned

API

Free, static, CDN-served JSON. No key, no rate limit.

GET https://nirberko.github.io/otter/registry.json — full catalog, one stable record per server
GET https://nirberko.github.io/otter/api/server/<slug>.json — a single server's scan record
GET https://nirberko.github.io/otter/api/badge/<slug>.json — shields.io endpoint for the score badge