API guides/Rates and prices
Daily FX from Frankfurter (central-bank sources). No API key. Not a trading feed. Pair with the money formatter for display.
1 provider · 4 min · Limits change — verify before you ship
Rates and prices
PureDevKit formats an amount with Intl — it does not know USD→INR. Frankfurter publishes daily reference rates with no key. Cache by date; do not poll every keystroke.
GET https://api.frankfurter.dev/v2/rate/{BASE}/{QUOTE}
HTTPS
Yes
API key
No key
CORS
Usually yes
Use
Free tier
Limits. No published quota; they rate-limit abuse. Cache. Self-host for high volume.
Commercial. Documented as free for commercial use; underlying central-bank terms still apply.
Note. v1 remains available. v2 is the current docs on frankfurter.dev. Latest basket: /v2/rates?base=USD"es=INR,EUR.
curl -sS "https://api.frankfurter.dev/v2/rate/USD/INR"PureDevKit does not host or proxy these APIs. Pricing, rate limits, CORS, authentication, and JSON shapes can change without notice. Always confirm the current rules on the provider’s official documentation before you ship.