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Ark server
Esplora

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Configure a chain source

With the Bark CLI, pass only --ark. The CLI falls back to the Esplora endpoint for your network when you don’t pass --esplora or --bitcoind. barkd does the same when you create a wallet without a chain_source. The Bark SDK requires an explicit chain source, so set the Esplora endpoint when you configure the wallet. To use your own bitcoind node instead, use the Bark CLI, barkd, or the Rust SDK. The SDK’s other language bindings support Esplora only.