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Kakunin vs Rayrun

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

Kakunin compared with Rayrun
DetailKakunin logo KakuninRayrun logo Rayrun
What it doesCryptographic identity and behavioral monitoring for AI agents in regulated industries One endpoint for every MCP tool
StageStartup Not given
Founded2025 Not given
Based inUS US
Pricing modelFree trial Freemium
PricingStarter: $39/agent/month (minimum 5 agents, $195/month total); Professional: $99/agent/month (minimum 20 agents, $1,980/month total); Enterprise: custom pricing. 30-day free trial on all plans. Free for one developer with up to 25 source-built services, 50,000 tool calls a month, then $0.20 per thousand. Team plan is $25 per developer per month with 100,000 tool calls per developer a month, pooled, then $0.20 per thousand. Enterprise from $1,500 per month.
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
  • Source-built servers with TypeScript or Python projects
  • Remote MCP, OpenAPI, npm package, and container image support
  • Per-tool and per-argument access control policies
  • Tool definition review and approval workflow
  • Content scanning with literal and regex detectors
  • Activity tracking and audit trails
  • OIDC and SAML 2.0 single sign-on
  • SCIM 2.0 provisioning
  • Workspace-specific data encryption
  • Custom domain publishing with DNS and Cloudflare certification
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
  • One endpoint replaces every client config, eliminating need for each client to store every server and secret
  • Coding agent builds the server automatically with no adapter needed
  • Credentials held once by Rayrun instead of distributed across clients
  • Built-in security review with published controls and audit trails for compliance teams
  • Support for multiple service types without writing adapters
Free planNot given Not given
Open sourceNot given Not given
PlatformsNot given Not given
Public APINot given Not given
Community votes00
DR (Domain Rating by Ahrefs)40 −1 (down) since last check45 no change since last check
Trust Flow (Majestic)912
Citation Flow (Majestic)3036
Referring domains (Majestic)258125

6 details filled in for both companies.

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