SONIA rate JSON

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...

A SONIA rate API returns the Sterling Overnight Index Average as JSON. Interest Rates API GET /api/v1/latest?symbols=SONIA. Starter $19/mo,...

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...