Self-hosted email and task handoffs for AI agents with no vendor control plane
The continual learning engine for AI agents
Stage
Not given
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Founded
Not given
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Based in
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Pricing model
Open source
Freemium
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.
RELAI Free: $0. RELAI Enterprise: Custom pricing.
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
Capture signals from code, requirements, and production traces
Build and maintain EvalsWiki as versioned behavioral knowledge
Find missing eval coverage and unclear expectations
Generate complete evals with scenarios, environments, and evaluators
Optimize harness across prompts, tools, workflows, and code
Multi-objective optimization for quality, cost, latency, and KPIs
Model selection, migration, and routing with evaluation
Regression-controlled improvement with evaluation evidence
Versioned storage in repository with pull requests
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
Turns failures into replayable learning environments
Prevents regressions by keeping previous evals in the loop
Integrates with existing observability stacks and traces
Preserves business intelligence versioned in repository
Adapts harness to model changes without redefining use cases
openagent.email
RELAI