Best Free Cryptocurrency Price APIs in 2026

Building a crypto tracker, portfolio app, or integrating cryptocurrency data? These free APIs provide real-time pricing, market data, and blockchain queries without expensive subscriptions.

1. CryptoPrice - Real-Time Pricing

Live prices for 5,000+ cryptocurrencies with market cap, volume, and 24h change data. 10,000 free requests per month.

curl "https://freeapitools.dev/api/v1/crypto/price?symbol=BTC¤cy=USD"

# Response:
# {
#   "symbol": "BTC",
#   "price": 98234.50,
#   "change_24h": 2.34,
#   "market_cap": 1930000000000,
#   "volume_24h": 45000000000
# }

View CryptoPrice docs →

2. WalletBalance - Blockchain Wallet Queries

Check wallet balances on Ethereum, Bitcoin, Solana, and Polygon. Includes token holdings and USD valuations. 2,000 queries/month free.

curl "https://freeapitools.dev/api/v1/crypto/balance?address=0x123...&chain=ethereum"

# Response:
# {
#   "address": "0x123...",
#   "balance": 1.234,
#   "token": "ETH",
#   "usd_value": 4521.30,
#   "tokens": [
#     {"symbol": "USDC", "balance": 1000.00, "usd_value": 1000.00}
#   ]
# }

View WalletBalance docs →

Supported Cryptocurrencies

CryptoPrice supports 5,000+ cryptocurrencies including:

• Bitcoin (BTC), Ethereum (ETH), Solana (SOL)
• Major altcoins: BNB, XRP, ADA, DOGE, MATIC
• Stablecoins: USDT, USDC, DAI, BUSD
• DeFi tokens: UNI, AAVE, LINK, SUSHI
• Meme coins: SHIB, PEPE, FLOKI

Rate Limiting Tips

Crypto prices update frequently but don't change every second. Cache responses for 10-30 seconds to stay within rate limits while providing fresh data.

Historical Data

Both APIs support historical queries. Add a timestamp parameter to get prices or balances from any past date.

Get Your API Key

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