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
X.509 certificate issuance via AWS KMS with private keys stored in HSM
Real-time behavioral monitoring and drift detection across eight risk dimensions
Content-risk scoring of agent outputs per EU AI Act Article 5
Automatic certificate revocation when risk crosses 0.85 threshold within 60 seconds
Compliance reports mapped to NIST AI RMF, NIST CSF 2.0, ISO 27001, MiCA, and EU AI Act
Public verification endpoint with sub-500ms response and no authentication required
OpenTelemetry (OTLP) export to Datadog, Grafana, Honeycomb, and Splunk
RFC 8693 delegation chains and signed forensics
Webhook event delivery with HMAC signatures and audit logging
AgentMail: verifiable email inbox per certified agent for regulatory communication
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
Only platform that issues cryptographic identity to deployed agents, monitors behavior in real time, and generates compliance reports as one unified product
X.509 certificates provide institutional trust standard used by banks and governments for 30+ years
Auto-revocation with sub-60-second SLA stops misbehaving agents without manual intervention
Content-risk scoring evaluates agent output language, not just actions, catching prompt injections and policy violations
Private keys never accessible; stored only in AWS KMS with cryptographic signing performed by KMS directly
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
Kakunin
openagent.email