observatory vs OnPage.dev
Neck and neck on boosts. Profiles, pricing and deals below.
observatory
Independent drift detection for public MCP servers - free, read-only, reproducible.
community boosts
⚡ 0
pricing
Freemium · Free public API
what it is
Dominion Observatory - independent, read-only measurement of public MCP servers. Signed tool-definition captures, canonicalization-hashed so any third party can recompute them, and drift detection when a server's tools change. Free public API, no account required.
OnPage.dev
OnPage.dev MCP server for Claude and ChatGPT
community boosts
⚡ 0
pricing
Freemium
what it is
Free MCP server with 20 SEO and AI-visibility tools for Claude, ChatGPT and Cursor: site audits, competitor gaps, fixes, redirects, robots.txt, llms.txt. No account.