fawazahmed0's exchange-api publishes daily rates for 200+ currencies, crypto included, as static JSON on jsDelivr — no rate limits.
None — no key, no signup. Every example runs as-is.
Full reference: https://github.com/fawazahmed0/exchange-api
curl https://cdn.jsdelivr.net/npm/@fawazahmed0/currency-api@latest/v1/currencies/eur.json
{
"date": "2026-09-22",
"eur": {
"1inch": 11.13894072,
"aave": 0.0079852002,
"ada": 4.57777316,
"aed": 4.21406146,
"afn": 74.36450672,
"akt": 1.74517463,
"algo": 10.29968598,
"all": 91.51531733,
"amd": 417.19419146,
"amp": 2358.3958548,
"ang": 2.06760879,
"aoa": 1052.97111155,
"ape": 7.77863263,
"apt": 1.49185563,
"ar": 0.2600762
}
}
Replace latest with a date.
curl https://cdn.jsdelivr.net/npm/@fawazahmed0/currency-api@2025-01-02/v1/currencies/usd.json
{
"date": "2025-01-02",
"usd": {
"1inch": 2.51634751,
"aave": 0.0030757021,
"ada": 1.12602329,
"aed": 3.6725,
"afn": 70.44472213,
"agix": 1.75841577,
"akt": 0.34434264,
"algo": 2.52912646,
"all": 93.6935949,
"amd": 396.14094259,
"amp": 131.94249682,
"ang": 1.79975731,
"aoa": 922.14715469,
"ape": 0.79900379,
"apt": 0.11016584
}
}