🍭 New Blockchair is here! Beta release

Blockchair API

Fetch data from 17 blockchains

Blockchair API provides developers, researchers, and businesses with access to data contained in 17 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
API icon
What our users say about our features
Privacy guaranteed
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
Explore Pricing plans
Blockchair API is ideal for
Multicurrency wallets
Analytical services
Blockchain startups
Independent researchers
Students and academia
Explore Pricing Plans
API characteristics
High Uptime
We run multiple infrastructures to guarantee the highest uptime on the market.
Rest API
An industry standard. Make the usual HTTP requests.
JSON response data format
Convenient to use in applications written in various programming languages.
Real-time data
For most blockchains we are running our own full nodes which guarantee you access to up-to-date data, always.
SQL-like queries
Filter, sort, offset, aggregate. Construct queries very similar to the SQL ones.
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.
Explore Pricing Plans
Client testimonials
Alexander Schevchenko
Chief Product Officer
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.
Sean Prescott
Founder & Executive Chairman
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
Blockchains we support
$33,926.00 1%
Blocks 688,780
Transactions 651,534,799
Unconfirmed txs 18,731
Transactions per second 2.53
$1,892.28 3%
Blocks 12,702,981
Transactions 1,184,952,997
Unconfirmed txs 70,711
Transactions per second 7.42
$0.64 1%
Ledgers 64,510,003
Transactions 302,734
Unconfirmed txs 45
Transactions per second 3.50
Bitcoin Cash
$472.54 3%
Blocks 693,647
Transactions 334,011,184
Unconfirmed txs 642
Transactions per second 1.32
Bitcoin ABC
$24.39 8%
Blocks 692,382
Transactions 297,111,471
Unconfirmed txs 0
Transactions per second 0
Bitcoin SV
$128.10 2%
Blocks 693,162
Transactions 629,481,604
Unconfirmed txs 4,419
Transactions per second 2.92
$131.32 1%
Blocks 2,075,625
Transactions 74,937,824
Unconfirmed txs 449
Transactions per second 1.78
$1.39 3%
Blocks 5,896,940
Transactions 9,160,287
Current slot 48,798
Transactions per second 0.36
$3.75 2%
Blocks 190,921,379
Irreversible block 190,921,046
$2.66 3%
$0.25 3%
$206.99 4%
Blocks 2,390,914
Unconfirmed txs 5
Transactions per second
$126.10 2%
Blocks 1,493,747
Transactions 37,569,182
Unconfirmed txs 136
Transactions per second 0.13
$109.38 2%
Blocks 1,297,224
Transactions 8,722,181
Unconfirmed txs 5
Transactions per second 0.07
$0.26 8%
Blocks 3,785,974
Transactions 76,520,691
Unconfirmed txs 590
Transactions per second 0.33
$301.82 8%
Snapshots 95,248,972
Mintings 848
Active nodes
Transactions per second
$0.46 4%
Blocks 3,644,871
Transactions 4,766,085
Unconfirmed txs 1
Transactions per second 0
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

Already purchased the API subscription or want to prolong the monthly plan?