Simple, usage-based pricing.

Free tier for evaluation. Pay only for what you use past your quota.

Free
$0
per month
  • 1,000 calls / month
  • 10 requests / minute
  • 20 burst capacity
  • 79 calculators + 830 code sections
  • MCP server access (85+ tools)
  • — Hard cap past quota
Get started
Starter
$49
per month
  • 25,000 calls / month
  • 60 requests / minute
  • 120 burst capacity
  • Full API (calcs + codes + MCP)
  • $0.04 / call past quota
Start with Starter
Most popular
Growth
$249
per month
  • 250,000 calls / month
  • 300 requests / minute
  • 600 burst capacity
  • Full API (calcs + codes + MCP)
  • $0.02 / call past quota
  • Priority support email
Start with Growth
Enterprise
$1,500+
per month, custom
  • 10M+ calls / month
  • 2,000+ requests / minute
  • Custom burst
  • SLA
  • Dedicated support
  • Custom contract
Contact us

How billing works