head to head/Developer Tools

observatory vs PickAPlugin

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.

PickAPlugin

an independent catalog of ChatGPT & Codex plugins

community boosts

⚡ 0

pricing

Paid

what it is

Hundreds of ChatGPT and Codex plugins are scattered across GitHub. PickAPlugin gathers them in one free, hand-sorted catalog with last update, license and install command for each.