Developer API

Embed Astrilio calculators, access jurisdiction rules as JSON, or connect via our MCP server.

Embeddable Calculators

Embed any calculator on your website with a single iframe:

<iframe
  src="https://astrilio.com/embed/mortgage-payment"
  width="100%"
  height="600"
  frameborder="0"
  title="Mortgage Calculator by Astrilio"
></iframe>

Replace mortgage-payment with any of the 18 available calculator slugs.

Available Calculators

mortgage-paymentamortization-schedulerent-increasesecurity-depositprorated-rentaffordabilitycap-ratecash-flowland-transfer-taxcash-on-cashcmhc-pmidscrirrstr-revenuestr-vs-ltrdepreciationclosing-costrent-to-income

MCP Server (coming soon)

Our Model Context Protocol server will expose Astrilio calculators as tools for AI agents (ChatGPT, Claude, etc.). Documentation and endpoint details will be published here when available.

Jurisdiction Rules API (coming soon)

All 64 jurisdiction packs will be available as versioned JSON at /api/rules/:country/:region. Rules include rent increase guidelines, deposit limits, transfer tax brackets, and more — all with primary-source links and lastVerified timestamps.