openagent.email vs CogniCore

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

openagent.email compared with CogniCore
Detail	openagent.email	CogniCore
What it does	Self-hosted email and task handoffs for AI agents with no vendor control plane	Memory that follows you between AI apps
Stage	Not given	Not given
Founded	Not given	Not given
Based in	Not given	Not given
Pricing model	Open source	Open source
Pricing	Self-hosted is free under Apache-2.0 license (pay only for VPS infrastructure ~$5/month and domain ~$10/year). Hosted Pro Early Bird: $30.00/year one-time payment, no auto-renewal.	Not given
Key features	MCP 2026-07-28 support for Claude, Cursor, Kimi Code and other clients Unlimited agent mailboxes on your own domain Email-backed agent-to-agent task threads with stamped states	Connect to Claude via custom connector in Settings Add to ChatGPT with developer mode Automatic session save for Claude Code and Codex Save and resume sessions with brief summaries GitHub sign-in for private separate memory Delete individual memories or all data by email Zero model calls to save a session Session brief generated in ~450 tokens
What makes it different	Apache-2.0 open source with no vendor control plane or per-inbox software fees Mail stays on your server under your control unless you explicitly opt into external services Built-in OTP extraction tested against real services from US and Chinese providers	Shared memory across multiple AI apps and agents, not confined to one app Setup in about one minute with no credit card or waitlist Open source code so users can verify data handling No data selling, ads or use for AI model training Private per-account database with no cross-account access
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)	4 −1 (down) since last check	Not checked yet no change since last check
Trust Flow (Majestic)	3	1
Citation Flow (Majestic)	26	10
Referring domains (Majestic)	28	12

4 details filled in for both companies.

More alternatives to openagent.email More alternatives to CogniCore