head to head/Developer Tools

observatory vs Subpay Document Reader

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.

Subpay Document Reader

Document Reading API for Developers

community boosts

⚡ 0

pricing

Paid

what it is

Read construction pay applications (AIA G702/G703, Procore, Textura) and change orders into structured JSON. $0.20 in USDC per successful read over x402 — no account, no API key.