Pricing
Free while you build. Pay when it ships.
Drop the SDK into a side project or staging for free. Upgrade when your agent goes to production.
Developer
Side projects and staging
$0
free forever
Get an API key- 10,000 validations / month
- Python & TypeScript LLMGate SDKs
- Hosted Rust validation engine (sub-15ms)
- Up to 3 schema contracts
- PII masking
Pro
Most popularAgents in production
$99
per month
Start 30-day trial- 250,000 validations / month
- Unlimited schema contracts
- Auto-repair re-prompt loop
- Payload quarantine & replay
- Everything in Developer
Enterprise
Dedicated infrastructure
Custom
from $499 / month
Contact us- Volume to match your traffic
- Dedicated or self-hosted deployment in your VPC
- Dedicated Slack or Teams support channel
- Everything in Pro
Enterprise: datacontractgate@nightmoose.com
Questions
- What counts as a validation?
- One LLM output checked against a contract. A response that auto-repair re-prompts and checks again counts once per check.
- What happens at the monthly limit?
- Validation stops until the next month or an upgrade; you are never billed for overage. Pro is a hard cap at 250,000.
- Is this a separate account from DataContractGate?
- No. AISchemaGate runs on the DataContractGate engine: same account, API key, dashboard, quarantine and audit log.
- How does the Pro trial work?
- Free for 30 days, then $99 billed monthly until you cancel. Cancel anytime from Account → Billing; cancel before the trial ends and you are not charged.
Building the contract first? Start with the output validation playbook.