Pricing
Free to try. Pro for individual developers. Pilot for compliance-track teams. Enterprise for dedicated infrastructure. The world-model-mcp OSS core is separately MIT-licensed and can always be self-hosted.
Free
hosted, evaluation
Typical fit: 1 agent, evaluation and dogfooding
- 7-day retention
- 1,000 events per month
- Single project
- Shared signing keys (not compliance-grade)
- Public transparency log URL
- Verifier CLI
- Community support
Pro
per month
Typical fit: up to 10 agents, small team
- 30-day retention
- 50,000 events per month
- Single project
- Dedicated per-project signing keys
- Public transparency log URL
- Email support
Pilot
per project / month
Typical fit: unlimited agents, multi-project, compliance-track buyers
- 1-year retention (SOC2-friendly), custom windows negotiable
- Unlimited events
- Multi-project
- KMS-encrypted keys at rest
- SSO
- Direct founder access, priority support
Enterprise
quarterly billing
Typical fit: org-wide deployment, regulated industries
- 7+ year retention (SOX / HIPAA / SEC 17a-4 aligned)
- Dedicated KMS + private log mirror
- On-prem option, DPA, SLA
- Named support engineer
- Onboarding for your compliance team
Why these tiers
The Free tier is for evaluation and dogfooding. It shares signing keys across tenants, which means it is not compliance-grade: you cannot hand its audit log to an auditor as signed authenticated proof of exclusive custody. Upgrade to Pro or Pilot for dedicated per-project keys.
Pro is the smallest tier with real cryptographic guarantees, sized for individual developers and small teams shipping AI agents in real workflows. Priced against the LLM tools you already pay for.
Pilot pricing recovers hosting and KMS cost while remaining defensible on a compliance team's quarterly budget line. Enterprise pricing includes custom KMS residency, on-prem option, and named support.
The world-model-mcp core is MIT-licensed and can be self-hosted with no dependency on this service. The four tiers above are for the hosted Etch service.