LangChain vs openagent.email

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

LangChain compared with openagent.email
Detail	LangChain	openagent.email
What it does	The open agent platform to own your intelligence	Self-hosted email and task handoffs for AI agents with no vendor control plane
Stage	Established	Not given
Founded	2023	Not given
Based in	US	Not given
Pricing model	Not given	Open source
Pricing	Developer plan is free for solo users with up to 5k base traces per month, then pay-as-you-go. Plus plan costs $39/seat/month with 10k base traces included. Enterprise plan offers custom pricing with advanced options.	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.
Key features	Agent observability with step-by-step tracing Agent evaluation and scoring Agent deployment infrastructure Production monitoring with online evaluations Autonomous agent improvement with Engine Secure sandbox execution for agent-generated code LLM Gateway for model call control No-code agent builder Fleet Open source frameworks for agent development	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
What makes it different	Comprehensive platform covering the entire agent development lifecycle from building to monitoring Open source frameworks with options from quick-start to low-level control Built-in observability and evaluation capabilities integrated into the platform Support for long-running autonomous agents with Deep Agents framework	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
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)	88 +1 (up) since last check	4 −1 (down) since last check
Trust Flow (Majestic)	56	3
Citation Flow (Majestic)	64	26
Referring domains (Majestic)	28586	28

4 details filled in for both companies.

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