One API to Rule Them All
BlockCypher APIs lets you interact with up to 8 blockchains in a unified way. No need to reinvent the wheel.
Enabling the future of finance
Supported Chains
We are always working on adding new chains. Stay tuned!
Bitcoin
Mainnet and Testnet3
Ethereum
Mainnet and our internal Testnet
Litecoin
Mainnet
Dash
Mainnet
Doge
Mainnet
BCY
BlockCypher Internal Testnet
Discover BlockCypher APIs
One API Multiple Features
Retrieve data from a block, interact with a smart contract, get notified about an unconfirmed transaction or create a multisignature transaction.
All in one place.
Data
- Addresses
- Transactions
- Blocks
- Smart contracts
Interactions
- Create transactions
- Decode transactions
- Interact with contracts
- Deploy contracts
Notifications
- Transactions webhook
- Blocks webhook
- Double spend webhook
- Websocket
Advanced Features
- Multisig
- Segwit Support
- Confidence factor
- Assets (OAP)
Webhooks
Get notified on any blockchain event
{
"event": "unconfirmed-tx",
"url": "https://mysite.com/callbacks",
"address": "15qx9ug952GWGTNn7Uiv6vode4RcGrRemh",
"token": "0aad35a575ebf058e61116a65"
}
Multisig
Request multiple signatures
{
"inputs": [{"addresses": [sourceAddr]}],
"outputs": [{
"addresses": [pubkey1, pubkey2, pubkey3],
"script_type": "multisig-2-of-3",
"value": 250000,
}]
}
Accept Payments
Get unique payment addresses that forward automatically
$ curl https://api.blockcypher.com/v1/btc/main/payments
{
"input_address": "16uKw7GsQSzfMaVTcT7...",
"destination": "15qx9ug952GWGTNn7Uiv...",
"callback_url": "https://mydomain.com/cb/payments",
"token": "37048cd01f250eca918ab55b658de3ec"
}
Query Addresses
Quickly get data on a specific address
$ curl https://api.blockcypher.com/v1/btc/main/addrs/1PuwQ6uWXNeGcEnLCAXmRJozdLZ9M4NWQ7
{
"address": "1PuwQ6uWXNeGcEnLCAXmRJozdLZ9M4NWQ7",
"balance": 0,
"unconfirmed_balance": 0,
"txrefs": [...]
}
Browse the Blockchain
Retrieve blocks and transactions
# Using https://github.com/trentm/json
$ curl -s https://api.blockcypher.com/v1/btc/main \
| json latest_url \
| xargs curl -s \
| json prev_block_url \
| xargs curl -s
Scalable
Ship Faster Save Money.
Building an API and maintaining a cluster of nodes is not only costly but also time consuming.
Save months on development and thousands of dollars on engineering costs by using our unmatched pricing plans and features.
Efficient
Faster
Scalable
Cost-effective
BlockCypher APIs
Start Building Now
Create an account and start using BlockCypher APIs - no contracts or banking details required.