Interest Rates API SONIA SOFR

SONIA vs SOFR Rate API: Two Overnight Prints

A SONIA vs SOFR rate API returns both overnight prints as JSON. Interest Rates API latest mix dated 2026-04-20: SONIA 4.70, SOFR 4.31. Start...

Fed Funds and SOFR Rate API from JSON

An interest rate API returns FED_FUNDS and SOFR as JSON. Interest Rates API GET /api/v1/latest uses api_key. Starter $19/mo, 250 calls, 1 sy...