Mainbrella vs OpenLegion

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

Mainbrella compared with OpenLegion
Detail	Mainbrella	OpenLegion
What it does	Cloud computers for AI agents on Cloudflare	AI teammates that do recurring business work with approvals, budgets, and receipts
Stage	Not given	MVP
Founded	Not given	2025
Based in	US	Not given
Pricing model	Freemium	Freemium
Pricing	Prepaid compute at $0.02 per compute-unit hour. Minimum $5 top-up with no monthly subscription. Machine rates: Lite $0.02/hour, Small $0.12/hour, Medium $0.20/hour, Large $0.32/hour, XL $0.56/hour. Open source platform available via GPLv3 license for self-hosting on Cloudflare (Workers Paid plan sta	Free: 1,000 credits (one time), no card required. Pro: $29/month with 10,000 credits monthly. Team: $99/month with 35,000 credits monthly. Enterprise: from $1,500/month. Credits cost $0.001 each; typical costs are 6 credits for a chat message, 3 credits for a background task run, 15-60 credits for d
Key features	Linux workspace with command execution, file operations, and tool installation HTTP API, SSH, and browser terminal access Account-owned lifecycle controls and explicit ownership Five machine sizes from Lite to XL Saved workspaces with snapshot stop and resume Prepaid balance with no monthly subscription Shared accounts and billing infrastructure Hosted apps including Linux computers, Vibe coding, and Voice agents Custom runtime images and language support Outbound internet and ephemeral storage	Agents run per task on demand with no servers to manage Every tool call is policy-checked with a receipt Approvals for third-party reach, deletion, and untrusted content Credential vault where the model only sees a handle, never a key Sandboxed code execution with deny-all egress by default Web chat on every plan; Slack and email on Team plan Per-agent budgets with work metered in credits Workspace export with activity log on Team and Enterprise plans
What makes it different	Open-source platform that can be self-hosted on own Cloudflare account Built-in accounts, billing, and metering so developers don't start from scratch Simple prepaid model with no monthly commitment Direct founder contact for product feedback and integration questions Account-owned HTTP workflow with automatic cleanup	Security and cost controls built in by default, not enterprise add-ons Idle agents cost nothing; work runs on demand then stops A standing team you can see with receipts for every action Built for work you have to answer for with approvals and audits
Community votes	0	0
DR (Domain Rating by Ahrefs)	21 −1 (down) since last check	19 +1 (up) since last check
Trust Flow (Majestic)	5	4
Citation Flow (Majestic)	32	30
Referring domains (Majestic)	69	105

5 details filled in for both companies.

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