Free Cryptocurrency APIs with no API key

40 Cryptocurrency APIs that need no API key, account or credit card. 22 of them also allow CORS, so you can call them straight from browser JavaScript. Listed by uptime and ease of use.

1
DefiLlama API
Online · 178 ms
Open and transparent DeFi data, TVL, coin prices, volumes, and yields.
- No API key needed
- Fast: 178 ms response
- Callable from the browser (CORS)
- HTTPS
No authHTTPSCORS
2
BitcoinYield API
Online · 761 ms
Live yields on BTC, ETH and stablecoins across DeFi and CeFi, with an A-D risk grade per offer.
- No API key needed
- Callable from the browser (CORS)
- HTTPS
No authHTTPSCORS
3
BlazePhoenix API
Online · 746 ms
On-chain DEX aggregator quotes and route execution data.
- No API key needed
- Returns JSON at its URL
- Callable from the browser (CORS)
- HTTPS
No authHTTPSCORS
4B
Block Lottos API
Online · 675 ms
On-chain lottery, draw history, jackpot and advertising endpoints.
- No API key needed
- Returns JSON at its URL
- Callable from the browser (CORS)
- HTTPS
No authHTTPSCORS
5
BTCGlobe API
Online · 878 ms
Bitcoin height, fees, mempool and peer data served live from two self-hosted nodes.
- No API key needed
- Callable from the browser (CORS)
- HTTPS
No authHTTPSCORS
6
CoinLobster API
Online · 712 ms
Live executed whale trades across 15 exchanges and on-chain DEX with an unusualness radar.
- No API key needed
- Callable from the browser (CORS)
- HTTPS
No authHTTPSCORS
7
Coinpaprika API
Online · 519 ms
Cryptocurrencies prices, volume and more.
- No API key needed
- Callable from the browser (CORS)
- HTTPS
No authHTTPSCORS
8
FraudCoins API
Online · 689 ms
On-chain top-10 holder concentration and contract permissions for crypto tokens.
- No API key needed
- Callable from the browser (CORS)
- HTTPS
No authHTTPSCORS
9
HostDeFi API
Online · 808 ms
Free A+–F token-safety grades across Solana and EVM chains.
- No API key needed
- Callable from the browser (CORS)
- HTTPS
No authHTTPSCORS
10
MarginPad API
Online · 490 ms
Crypto futures prices, candles, funding, open interest, long/short and liquidations, 9 exchanges.
- No API key needed
- Callable from the browser (CORS)
- HTTPS
No authHTTPSCORS
11
monerometrics API
Online · 706 ms
Reorg-aware Monero (XMR) network metrics, mining-pool centralization and chain reorganizations.
- No API key needed
- Callable from the browser (CORS)
- HTTPS
No authHTTPSCORS
12
WhiteBIT API
Online · 859 ms
Build trading integrations, payment flows, and institutional infrastructure on one of Europe's largest cryptocurrency exchanges.
- No API key needed
- Callable from the browser (CORS)
- HTTPS
No authHTTPSCORS
13
CorpStacking API
Online · 1222 ms
Corporate, government and ETF Bitcoin, Ethereum and Solana treasury disclosures.
- No API key needed
- Returns JSON at its URL
- Callable from the browser (CORS)
- HTTPS
No authHTTPSCORS
14
0x API
Online · 2077 ms
API for querying token and pool stats across various liquidity pools.
- No API key needed
- Callable from the browser (CORS)
- HTTPS
No authHTTPSCORS
15
Alpha (Mossland) API
Online · 1281 ms
Korean crypto channel stance + RAG Q&A + canonical entity/topic/event store.
- No API key needed
- Callable from the browser (CORS)
- HTTPS
No authHTTPSCORS
16
CoinGecko API
Online · 1261 ms
Cryptocurrency Price, Market, and Developer/Social Data.
- No API key needed
- Callable from the browser (CORS)
- HTTPS
No authHTTPSCORS
17
Coinlore API
Online · 563 ms
Cryptocurrencies prices, volume and more.
- No API key needed
- HTTPS
No authHTTPSCORS ?
18
CoinStats API
Online · 734 ms
Crypto Tracker. A free cryptocurrency API by Public API.
- No API key needed
- HTTPS
No authHTTPSCORS ?
19
CryptAPI
Online · 617 ms
Explore our documentation to integrate CryptAPI cryptocurrency payment solutions.
- No API key needed
- HTTPS
No authHTTPSCORS ?
20
MercadoBitcoin API
Online · 216 ms
Brazilian Cryptocurrency Information. A free cryptocurrency API by mercadobitcoin.com.br.
- No API key needed
- Fast: 216 ms response
- HTTPS
No authHTTPSCORS ?
21
Dudelytics API
Online · 644 ms
Productive crypto indices, daily benchmarks, sector indices and market-stress data.
- No API key needed
- HTTPS
No authHTTPSNo CORS
22
SoloLuck API
Online · 1693 ms
Bitcoin solo mining pool stats, per-address miner stats and an open dataset of solo-mined blocks.
- No API key needed
- Callable from the browser (CORS)
- HTTPS
No authHTTPSCORS
23B
Bitcambio API
Online · 468 ms
Get the list of all traded assets in the exchange.
- No API key needed
- HTTPS
No authHTTPSCORS ?
24B
btcnode.uk API
Online · 918 ms
Bitcoin blockchain data, fees, mempool, SEC insider trades, Reddit sentiment. x402 micropayments for paid endpoints.
- No API key needed
- HTTPS
No authHTTPSCORS ?
25
CoinCap API
Online · 1260 ms
Real time Cryptocurrency prices through a RESTful API.
- No API key needed
- HTTPS
No authHTTPSCORS ?
26
CryptingUp API
Online · 1250 ms
Get a new domain name for your startup.
- No API key needed
- HTTPS
No authHTTPSCORS ?
27C
CryptoCompare API
Online · 815 ms
Cryptocurrencies Comparison. A free cryptocurrency API by cryptocompare.com.
- No API key needed
- HTTPS
No authHTTPSCORS ?
28
Gemini API
Online · 1950 ms
Build across Spot, Margin, Perpetuals, and Prediction Markets with Gemini APIs, guides, and developer tools.
- No API key needed
- HTTPS
No authHTTPSCORS ?
29
Messari API
Online · 451 ms
Provides API endpoints for thousands of crypto assets.
- No API key needed
- HTTPS
No authHTTPSCORS ?
30Z
ZMOK API
Online · 1156 ms
Ethereum JSON RPC API and Web3 provider.
- No API key needed
- HTTPS
No authHTTPSCORS ?
31
Mempool API
Online · 1028 ms
Bitcoin API Service focusing on the transaction fee.
- No API key needed
- HTTPS
No authHTTPSNo CORS
32
Solana JSON RPC API
Online · 1754 ms
Provides various endpoints to interact with the Solana Blockchain.
- No API key needed
- HTTPS
No authHTTPSCORS ?
33
Nexchange API
Online · 1296 ms
Automated cryptocurrency exchange service. A free cryptocurrency API by nexchange2.docs.apiary.io.
- No API key needed
- Callable from the browser (CORS)
No authNo HTTPSCORS
34B
bilbop API
Last check failed
Solana USDC x402 pay-per-call tools for agents: SPL mint info, token brief, text summarize, Piper TTS, brand feedback.
- No API key needed
- Callable from the browser (CORS)
- HTTPS
No authHTTPSCORS
35
Bitcoin Halving API
Last check failed
Halving era, block reward, and schedule arithmetic for any Bitcoin block height.
- No API key needed
- Callable from the browser (CORS)
- HTTPS
No authHTTPSCORS
36
Crypto Vision API
Last check failed
Free crypto news aggregator with market context, JSON REST and RSS.
- No API key needed
- Callable from the browser (CORS)
- HTTPS
No authHTTPSCORS
37Z
Zennet API
Last check failed
x402 pay-per-use APIs: Polymarket signals, CEX/DEX spreads, contract risk scores, gas oracle.
- No API key needed
- Callable from the browser (CORS)
- HTTPS
No authHTTPSCORS
38
Localbitcoins API
Last check failed
P2P platform to buy and sell Bitcoins.
- No API key needed
- HTTPS
No authHTTPSCORS ?
39B
BitcoinCharts API
Last check failed
Financial and Technical Data related to the Bitcoin Network.
- No API key needed
- HTTPS
No authHTTPSCORS ?
40C
Cryptonator API
Last check failed
Cryptocurrencies Exchange Rates. A free cryptocurrency API by cryptonator.com.
- No API key needed
- HTTPS
No authHTTPSCORS ?

Keyless Cryptocurrency APIs compared

Cryptocurrency APIs with no API key
API	API key	HTTPS	CORS	Uptime	Response	Rating
DefiLlama	No	Yes	Yes	Up	178 ms	Not rated
BitcoinYield	No	Yes	Yes	Up	761 ms	Not rated
BlazePhoenix	No	Yes	Yes	Up	746 ms	Not rated
Block Lottos	No	Yes	Yes	Up	675 ms	Not rated
BTCGlobe	No	Yes	Yes	Up	878 ms	Not rated
CoinLobster	No	Yes	Yes	Up	712 ms	Not rated
Coinpaprika	No	Yes	Yes	Up	519 ms	Not rated
FraudCoins	No	Yes	Yes	Up	689 ms	Not rated
HostDeFi	No	Yes	Yes	Up	808 ms	Not rated
MarginPad	No	Yes	Yes	Up	490 ms	Not rated
monerometrics	No	Yes	Yes	Up	706 ms	Not rated
WhiteBIT	No	Yes	Yes	Up	859 ms	Not rated
CorpStacking	No	Yes	Yes	Up	1222 ms	Not rated
0x	No	Yes	Yes	Up	2077 ms	Not rated
Alpha (Mossland)	No	Yes	Yes	Up	1281 ms	Not rated
CoinGecko	No	Yes	Yes	Up	1261 ms	Not rated
Coinlore	No	Yes	Unknown	Up	563 ms	Not rated
CoinStats	No	Yes	Unknown	Up	734 ms	Not rated
CryptAPI	No	Yes	Unknown	Up	617 ms	Not rated
MercadoBitcoin	No	Yes	Unknown	Up	216 ms	Not rated
Dudelytics	No	Yes	No	Up	644 ms	Not rated
SoloLuck	No	Yes	Yes	Up	1693 ms	Not rated
Bitcambio	No	Yes	Unknown	Up	468 ms	Not rated
btcnode.uk	No	Yes	Unknown	Up	918 ms	Not rated
CoinCap	No	Yes	Unknown	Up	1260 ms	Not rated
CryptingUp	No	Yes	Unknown	Up	1250 ms	Not rated
CryptoCompare	No	Yes	Unknown	Up	815 ms	Not rated
Gemini	No	Yes	Unknown	Up	1950 ms	Not rated
Messari	No	Yes	Unknown	Up	451 ms	Not rated
ZMOK	No	Yes	Unknown	Up	1156 ms	Not rated
Mempool	No	Yes	No	Up	1028 ms	Not rated
Solana JSON RPC	No	Yes	Unknown	Up	1754 ms	Not rated
Nexchange	No	No	Yes	Up	1296 ms	Not rated
bilbop	No	Yes	Yes	Down	–	Not rated
Bitcoin Halving	No	Yes	Yes	Down	–	Not rated
Crypto Vision	No	Yes	Yes	Down	–	Not rated
Zennet	No	Yes	Yes	Down	–	Not rated
Localbitcoins	No	Yes	Unknown	Down	–	Not rated
BitcoinCharts	No	Yes	Unknown	Down	–	Not rated
Cryptonator	No	Yes	Unknown	Down	–	Not rated

FAQ

Are there free Cryptocurrency APIs without an API key?

Yes. 40 free Cryptocurrency APIs need no API key or sign-up, including DefiLlama API, BitcoinYield API and BlazePhoenix API. You can send a request straight away.

Which keyless Cryptocurrency APIs can I call from JavaScript in the browser?

22 of them also support CORS, including DefiLlama API, BitcoinYield API and BlazePhoenix API, so a plain fetch from a web page works.

Do APIs without a key have limits?

Usually, yes. Keyless APIs typically rate-limit by IP address, so cache responses and avoid tight loops. For production traffic, an API with a free key tier often gives higher, more predictable limits.