Freedom Street
Freedom Street provides free, open blockchain APIs for Bitcoin (BTC), Bitcoin Cash (BCH), Litecoin (LTC), Dogecoin (DOGE), Dash (DASH), and eCash (XEC).
Query transactions, addresses, blocks, and mempool data across all six networks through a unified API. Stream real-time events over SSE with filtering. Broadcast raw transactions. No API keys, no rate limits, no sign-up.
APIs
Socket API
Real-time blockchain event streaming via Server-Sent Events (SSE). Stream live transactions, blocks, and RBF replacements with advanced query filtering. Supports prefix matching for k-anonymous address monitoring.
RPC API
HTTP endpoints for querying blockchain data across all six networks. Look up transactions, addresses, and blocks. Broadcast raw transactions. Check mempool state, peer info, CPFP fee analysis, and RBF replacement status.
Projects
Transaction.st
Transaction Street is a multi-chain block explorer for BTC, BCH, LTC, DOGE, DASH, and XEC. Search transactions, addresses, and blocks with real-time updates. Built on the Freedom Street APIs.
Merchant.st
Merchant Street allows merchants to sell digital products for cryptocurrency in a non-custodial, zero-knowledge environment.
Quick Start
Get the latest Bitcoin block:
GET https://api-v1.freedom.st/rpc/btc/block/942667
Stream all Bitcoin transactions in real-time:
GET https://sock-v1.freedom.st/sse?q=eyJjcnlwdG8iOiJidGMiLCJ0eXBlIjoidHgifQ==
Look up an address balance:
GET https://api-v1.freedom.st/address/bc1q0awq9m46y9xzdyetuhuefjxuezrdrp7nrrv0s7lhqhxlzrv9fr2shrqhk9
Broadcast a signed transaction:
GET https://api-v1.freedom.st/rpc/btc/broadcast/{rawtx}