Compound Labs vs ProtocolProbe

A side-by-side comparison built from both listings. Blank cells mean the company has not given that detail; we never guess.

Compound Labs compared with ProtocolProbe
Detail	Compound Labs	ProtocolProbe
What it does	Independent product R&D lab building apps, developer tools, and exploring applied AI	Free directory of MCP server facts with checked information from public records
Stage	Not given	Not given
Founded	Not given	Not given
Based in	Not given	Not given
Pricing model	Freemium	Free
Pricing	Most apps are free or freemium with optional paid plans. OpenSocials: Free / $9 / $19/mo; OpenJobs: Free / $9/mo / $19/mo; OpenNews: Free / $9 / $19/mo; Front Wire: $3/mo or $24/yr; SkillWorks: $9/mo / $19/mo; ParseRail: Free / $19 / $25/mo; The Standup: $5/mo or $39/yr	Not given
Key features	Search shadcn components Compare SaaS starter kits AI coding rule files Price tech stacks Find AI agent tools Track AI tool changes Daily developer news Social scheduling Job application management Document parsing API	Free JSON API with no authentication required Server search and filtering by name and description Rankings by downloads, stars and record checks Server comparison and topic filtering Self-test command for your own server Record checks with badge for README Corrections log tracking fact updates CC BY 4.0 licensed data export Change tracking for registry updates Allowlist export for company filtering
What makes it different	Independent R&D lab exploring applied AI Portfolio of free and freemium developer tools Publishes research and insights Comprehensive AI tool tracking	Scheduled re-checking of all facts on a regular basis, unlike the official registry which only checks on publication Every fact shown with its source and the date checked No ads, sponsors or paid placements; income never changes listings or rankings Corrections publicly logged and requests always answered with reasoning Open API accessible to everyone without authentication key
Free plan	Not given	Not given
Open source	Not given	Not given
Platforms	Not given	Not given
Public API	Not given	Not given
Community votes	0	0
DR (Domain Rating by Ahrefs)	23 +1 (up) since last check	Not checked yet no change since last check
Trust Flow (Majestic)	11	3
Citation Flow (Majestic)	41	22
Referring domains (Majestic)	141	7

4 details filled in for both companies.

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