Blockchair API

Fetch data from 19 blockchains

Blockchair API provides developers, researchers, and businesses with access to data contained in 19 blockchains. The API supports numerous analytical queries like filtering, sorting, and aggregating blockchain data with high uptime.

It doesn't get any better than this:

Checkmark OK SQL-like queries for in-depth research analysis
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What our users say about our features
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API documentation done right
Packages for all use cases
Inexhaustible data insights for 17 blockchains
ERC-20, Omni Layer, Segwit, xpubs, and more
Blockchain data exactly as it is recorded on blockchains
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Blockchair API is ideal for
Exchanges
Multicurrency wallets
Analytical services
Blockchain startups
Independent researchers
Students and academia
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API characteristics
1
High Uptime
We run multiple infrastructures to guarantee the highest uptime on the market.
2
Rest API
An industry standard. Make the usual HTTP requests.
3
JSON response data format
Convenient to use in applications written in various programming languages.
4
Real-time data
For most blockchains we are running our own full nodes which guarantee you access to up-to-date data, always.
5
SQL-like queries
Filter, sort, offset, aggregate. Construct queries very similar to the SQL ones.
6
Free API testing plan
The plan allows you to test the API without the key with the daily limit of 1,000 calls.
Best prices
According to our clients we offer the best value for money. Both one-time and monthly payments are available!
No hard API limits
On our Enterprise plans you won’t be blocked from making requests if you hit the API limit.
One-on-one support
Have problems constructing a query or can’t find how to pull certain data? Our support team is ready to help you with all your questions.
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Client testimonials
Sean Prescott
Founder & Executive Chairman
UniCrypt
UniCrypt provides a highly secure and regulated universal crypto vault and management platform for retail and institutional clients alike.

It’s paramount to be able to deliver fast and reliable blockchain data for account balances, transactions, analytics and forensics to our clients - no matter how complex and detail-rich.

Blockchair elegantly helps by providing us with a multitude of connectivity and query options that let us tailor and aggregate meaningful data in a way that lets us provide the best product in class for traders, custodians, exchanges and private investors at blazing fast speeds and reliability
Alexander Schevchenko
Chief Product Officer
Savl
Savl is the first community-based ecosystem for Digital Assets exchange. Transaction history upload speed had to be quick so our system could match users needs. We use Blockchair services to monitor and display clients' balances, promptly get transaction history and count unspent outputs for Bitcoin-like cryptocurrencies.
Philip Borshell
CS Engineer
Exodus.io
Blockchair is miles ahead of the competition. Their robust set of API's give us all of the data that we need to run our business plus more. The "stats" API endpoint we use to compare our block importers and explorers to ensure that our services are up to date, and we use the public web-based explorers to link to from our wallet. The level of service and support from the Blockchair team is almost unheard of in the crypto-space and we couldn't be more happy with the collaboration and accomodation efforts of the Blockchair team with us.
Thomas Fritzen
Chief Solution Architect
Bitcoin Suisse
Bitcoin Suisse Denmark ApS. is using the Blockchair API to gather information about transactions and balances on multiple blockchains. The API has proven robust and well performant, with high accuracy. Their coverage of blockchains are broad and have a good match with many blockchains we support. We consider Blockchair an important part of our crypto infrastructure.
James Huang
Vice President, Product Management
SecuX
SecuX is a military-grade hardware wallet provider. Our wallets have built-in secure elements to protect users' various crypto assets. With Blockchair's stable and high-performance API service, we can quickly add new coins' support, and users can effectively view balances and make transactions.
 
Blockchains we support
Bitcoin
$35,319.00 0%
Blok 720,061 {{ Math.abs(change) }}%
Transaksi 705,024,673 {{ Math.abs(change) }}%
Blok terbaru 4 menit yang lalu {{ Math.abs(change) }}%
Transaksi per detik 3.43 {{ Math.abs(change) }}%
Ethereum
$2,433.05 1%
Blok 14,063,038 {{ Math.abs(change) }}%
Transaksi 1,445,490,671 {{ Math.abs(change) }}%
Blok terbaru 1 menit yang lalu {{ Math.abs(change) }}%
Transaksi per detik 4.42 {{ Math.abs(change) }}%
Litecoin
$107.47 2%
Blok 2,198,402 {{ Math.abs(change) }}%
Transaksi 102,513,212 {{ Math.abs(change) }}%
Blok terbaru 3 menit yang lalu {{ Math.abs(change) }}%
Transaksi per detik 1.73 {{ Math.abs(change) }}%
Cardano
$1.10 0%
Blok 6,792,453 {{ Math.abs(change) }}%
Transaksi 28,154,417 {{ Math.abs(change) }}%
Blok terbaru 1 menit yang lalu {{ Math.abs(change) }}%
Transaksi per detik 1.87 {{ Math.abs(change) }}%
Ripple
$0.61 3%
Ledger 69,208,092 {{ Math.abs(change) }}%
Transaksi baru 24 jam 1,496,725 {{ Math.abs(change) }}%
Ledger terbaru 37 detik yang lalu {{ Math.abs(change) }}%
Transaksi per detik 17.32 {{ Math.abs(change) }}%
Polkadot
$18.18 0%
Blok 8,708,478 {{ Math.abs(change) }}%
Ekstrinsik 21,414,666 {{ Math.abs(change) }}%
Blok terbaru 1 menit yang lalu {{ Math.abs(change) }}%
Ekstrinsik per detik 0.53 {{ Math.abs(change) }}%
Dogecoin
$0.14 5%
Blok 4,074,443 {{ Math.abs(change) }}%
Transaksi 81,863,895 {{ Math.abs(change) }}%
Blok terbaru 2 menit yang lalu {{ Math.abs(change) }}%
Transaksi per detik 0.47 {{ Math.abs(change) }}%
Solana Baru
$98.18 1%
Slots 117,464,890 {{ Math.abs(change) }}%
Blok 105,990,304 {{ Math.abs(change) }}%
Transaksi 52,813,182,696 {{ Math.abs(change) }}%
Latest slot 3 jam yang lalu {{ Math.abs(change) }}%
Bitcoin Cash
$287.85 1%
Blok 724,134 {{ Math.abs(change) }}%
Transaksi 351,995,631 {{ Math.abs(change) }}%
Blok terbaru 25 menit yang lalu {{ Math.abs(change) }}%
Transaksi per detik 0.53 {{ Math.abs(change) }}%
Stellar
$0.19 2%
Ledger 39,312,674 {{ Math.abs(change) }}%
Ledger terbaru 2 menit yang lalu {{ Math.abs(change) }}%
Transaksi baru 24 jam 6,552,901 {{ Math.abs(change) }}%
Transaksi sukses 4,335,537 {{ Math.abs(change) }}%
Monero
$151.62 1%
Blok 2,543,609 {{ Math.abs(change) }}%
Blok terbaru 2,543,608 {{ Math.abs(change) }}%
txs yang belum dikonfirmasi 55 {{ Math.abs(change) }}%
Hashrate 3.17 Gh/s (RandomX) {{ Math.abs(change) }}%
EOS
$2.22 1%
Blok 227,581,897 {{ Math.abs(change) }}%
Blok yg tdk dpt diubah 227,581,567 {{ Math.abs(change) }}%
Peredaran 1,045,205,784 {{ Math.abs(change) }}%
RAM dialokasikan 90 GB {{ Math.abs(change) }}%
Kusama
$187.81 2%
Blok 11,090,764 {{ Math.abs(change) }}%
Ekstrinsik 33,314,138 {{ Math.abs(change) }}%
Blok terbaru 1 menit yang lalu {{ Math.abs(change) }}%
Ekstrinsik per detik 0.61 {{ Math.abs(change) }}%
Bitcoin SV
$88.78 1%
Blok 723,537 {{ Math.abs(change) }}%
Transaksi 841,772,760 {{ Math.abs(change) }}%
Blok terbaru 21 menit yang lalu {{ Math.abs(change) }}%
Transaksi per detik 2.18 {{ Math.abs(change) }}%
eCash
$0.000073 1%
Blok 723,513 {{ Math.abs(change) }}%
Transaksi 297,491,463 {{ Math.abs(change) }}%
Blok terbaru 16 menit yang lalu {{ Math.abs(change) }}%
Transaksi per detik 0.02 {{ Math.abs(change) }}%
Zcash
$93.31 0%
Blok 1,540,372 {{ Math.abs(change) }}%
Transaksi 9,889,310 {{ Math.abs(change) }}%
Blok terbaru 1 menit yang lalu {{ Math.abs(change) }}%
Transaksi per detik 0 {{ Math.abs(change) }}%
Dash
$96.38 1%
Blok 1,610,026 {{ Math.abs(change) }}%
Transaksi 40,508,868 {{ Math.abs(change) }}%
Blok terbaru 2 menit yang lalu {{ Math.abs(change) }}%
Transaksi per detik 0.42 {{ Math.abs(change) }}%
Mixin
$296.18 6%
Snapshot 219,794,694 {{ Math.abs(change) }}%
Minting 1,060 {{ Math.abs(change) }}%
Transaksi 750,000 {{ Math.abs(change) }}%
Transaksi per detik 8.68 {{ Math.abs(change) }}%
Groestlcoin
$0.54 2%
Blok 3,935,616 {{ Math.abs(change) }}%
Transaksi 5,132,293 {{ Math.abs(change) }}%
Blok terbaru 4 menit yang lalu {{ Math.abs(change) }}%
Transaksi per detik 0 {{ Math.abs(change) }}%
We also provide data for over 280.000 ERC-20 tokens and the Omni Layer
* For these blockchains we don't support the full history
Used by leading
educational institutions

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