RetroFill vs MCPJam

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

RetroFill compared with MCPJam
Detail	RetroFill	MCPJam
What it does	Fill your GitHub contribution graph with real, backdated commits	Test, debug, and evaluate MCP servers across every major AI client
Stage	Not given	Not given
Founded	Not given	Not given
Based in	CA	US
Pricing model	Freemium	Freemium
Pricing	Free: preview and first fill up to 7 days and 20 commits. Coffee: $5 USD one-time for one 365-day window. Time Machine: $12 USD one-time for every year since you joined. Autopilot: $3.99 USD per month or $29 USD per year for streak insurance with automatic commits on missed days.	Free: $0/mo with 200 credits/day and 500 free eval iterations. Pro: $24/mo (billed annually at $288/year) with 5,000 credits/mo. Team: $199/mo (billed annually at $2,388/year) with 50,000 credits/mo. Enterprise: Custom pricing. Additional credits: $10 per 1,000 credits (Pro), $9 per 1,000 credits (T
Key features	Live preview on your real graph with no sign-in required Realism engine with six personas and seeded rerolls Manual painting with brushes 1–4 Gap-only mode to respect existing contributions Text and pixel art mode on Time Machine and Autopilot One-click undo that deletes the generated repository Private repository support on Time Machine and Autopilot Contribution Doctor preflight checks Autopilot streak insurance with configurable commit frequency Multi-repo spread up to three repositories on Time Machine and Autopilot	Not given
What makes it different	Real, inspectable commits with no hidden activity Realistic patterns based on developer behavior modeling Preview before payment on your real GitHub graph Complete undo in one click with automatic account restoration Timezone-aware commits with proper timestamp handling	Tests how external AI clients use your MCP server, not just how your code runs Open source core runs locally or in your own CI, never sees live traffic Evaluations score tool choice and goal completion across repeated runs, not brittle assertions Automatically maintains current behavior of 16+ AI clients so your tests stay relevant Framework and deployment agnostic: works with any MCP server however it was built
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)	Not checked yet no change since last check	63 +1 (up) since last check
Trust Flow (Majestic)	0	20
Citation Flow (Majestic)	13	42
Referring domains (Majestic)	1	399

5 details filled in for both companies.

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