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developer-tools // APIs
Open-source Blockstream HTTP API for Bitcoin chain data and transactions.
Build: Bitcoin Infrastructure
overview
Esplora is Blockstream’s open-source explorer stack with a clean HTTP API for addresses, transactions, blocks, and fee-related chain data — often used behind wallet and indexer UX.
why // builders
build // with this tool
Move from discovery into Pull’s Learn → Build → Contribute → Prove loop.
projects // suggested
Fetch address and transaction history with Esplora.
Explore projectsresources