At Polygon.io, we're on a mission to modernize the financial industry. We believe that the industry runs on old technology, and we're here to change that

Score any U.S. public company's federal contract exposure. 0–100 dependency score, agency breakdown, and compliance flags from SEC EDGAR and USASpending.gov.

VAT/GST rates, calculators, and invoice tools for 166 countries — EU OSS, Africa, thresholds, history, and locale formatting.

24 endpoints for mortgage and loan calculations. Repayments, APR, DTI, stamp duty, amortisation, refinance break-even, and more. Multi-currency.

Real-time Yahoo Finance API for quotes, charts, screeners, market movers, options, fundamentals, dividends, news, and financial data.

Official South African petrol and diesel prices with 18 years of history. Updated automatically every month from DMRE.

Estimate import duty rates, HTS/HS tariff guidance, and trade notes by product, origin, and destination.

Real-time SEC Form 4 insider trading alerts. Monitor insider buys and sells across all US public companies.

Bond repayments, PAYE tax, transfer duty, vehicle finance, VAT, retirement lump sums and personal loans — all in one API for South Africa.

Get smart EMI insights, personalized recommendations, and superior risk analysis with top-notch AI performance in one powerful API.

Estimate freight cost, delivery time, and logistics notes from route, cargo size, weight, and mode.