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Robert Pringleleft a comment
Hey PH! 👋 I built BizCal API because I kept running into the same problem: date math involving business hours, public holidays, or multiple countries is deceptively hard to get right. The specific pain points that motivated this: - "24 business hours from Friday 3pm" is not Saturday 3pm -- it's Wednesday 3pm after crossing a weekend - US federal holidays differ from California and Texas...
BizCal APIHoliday-aware business day calculations for 15 counries
Stop building date logic from scratch. BizCal API gives you production-ready business calendar endpoints so you can ship features faster.
Handling business day calculations, SLA deadlines, holiday-aware scheduling, fiscal years, and working hours across 15 countries is hard. Timezone math, regional holiday variations, DST transitions — BizCal handles it al
BizCal APIHoliday-aware business day calculations for 15 counries
Stop reimplementing financial math.
FinCalc API gives developers 8 production-ready REST endpoints: Amortization, Mortgage, Compound Interest, ROI, NPV, IRR, Break-Even, and Depreciation.
Returns structured JSON. Inputs as query params. Stateless - no data stored. Sub-50ms responses.
Free tier: 50 calls/day. Paid plans from $9.99/mo.
FinCalc API8 financial calculator endpoints for developers
Robert Pringleleft a comment
Hey PH! I built this because I kept writing the same financial math functions across different projects. Amortization especially - getting the rounding right on a 30-year schedule is fiddly. FinCalc API is a simple REST API that handles all the common financial calculations developers need. It's stateless (no data stored), fast (sub-50ms), and has a generous free tier for prototyping. Happy to...
FinCalc API8 financial calculator endpoints for developers