head to head/Developer Tools

MCP Census vs observatory

Neck and neck on boosts. Profiles, pricing and deals below.

MCP Census

check an MCP server before you install

community boosts

⚡ 0

pricing

Paid

what it is

Look up health and ownership for 48,000+ MCP servers, or audit your whole MCP config in one call. Every claim links to public evidence. Free 10/day. REST and MCP for agents.

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.