Credits fund successful API usage across your developer workspace and remain available until used. Existing unused API balances are automatically converted to the 30-check rate; historical USD payment amounts do not change. FactLens Pro subscriptions and FactLens API credits are billed separately.
$1 = 30 claim checks.
Straightforward pricing for FactLens API. Start with 30 free checks per day, add credits when you need more capacity, and pay for the verification work your product actually runs.
How API credits work
A predictable billing model keeps development simple from the first prototype through production traffic.
Start free
Create your developer workspace and use the 30-check daily free allowance while you integrate and test FactLens.
Add credits
Purchase API credits when you need persistent paid capacity. Every $1 funds 30 checks, and your dashboard shows the remaining request balance and transaction history.
Keep the same integration
Your endpoints, projects, credentials, logs, and response format stay the same as your workload moves from free evaluation to paid usage.
Free vs Paid
The API surface is the same. Paid access raises operational capacity for sustained production workloads.
| Capability | Free developer access | Paid developer access |
|---|---|---|
| Claim checks | 30 per day | $1 funds 30 checks |
| Throughput | 20 checks/min | 60 checks/min |
| Projects | Up to 3 | Up to 100 |
| Active keys per project | 1 | 10 |
| API features | Production API | Production API |
| Billing | No purchase required | Usage funded by API credits |
Building something worth proving?
Qualifying startups, researchers, educators, journalists, student builders, and public-interest teams can apply for enough free API usage to validate a real FactLens integration.
Ready for production usage?
Buy API credits from FactLens billing, or review the API documentation before integrating.