Mainnet, mutinynet, and signet point at Ark Labs–operated
mempool deployments (mempool.space-compatible esplora API).
Testnet falls back to the public mempool.space deployment
because Ark doesn't host it. Regtest assumes a local arkade-regtest
stack exposing mempool's esplora API on the standard port.
The default base URLs for esplora API providers.
Mainnet, mutinynet, and signet point at Ark Labs–operated mempool deployments (mempool.space-compatible esplora API). Testnet falls back to the public mempool.space deployment because Ark doesn't host it. Regtest assumes a local arkade-regtest stack exposing mempool's esplora API on the standard port.