Arbitrum
Arbitrum is the Ethereum Layer 2 rollup ecosystem from Offchain Labs. It includes Arbitrum One (general-purpose rollup secured by Ethereum), Arbitrum Nova (AnyTrust chain for high-throughput, low-cost apps), Arbitrum Sepolia (testnet), and Arbitrum Orbit (settlement framework for custom L2 / L3 chai
7 channels
across 1 AsyncAPI spec
· Provider profile
Channels
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Nitro Sequencer broadcast feed for Arbitrum One. The connection is a raw WebSocket; each text frame is a JSON `BroadcastMessage`.Arbitrum Public WebSocket APIs
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Nitro Sequencer broadcast feed for Arbitrum Nova.Arbitrum Public WebSocket APIs
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Nitro Sequencer broadcast feed for Arbitrum Sepolia testnet.Arbitrum Public WebSocket APIs
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`eth_subscribe("logs", {address, topics})` on a Nitro JSON-RPC WebSocket. Emits a notification for each log matching the supplied address/topics filter.Arbitrum Public WebSocket APIs
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`eth_subscribe("newHeads")` on a Nitro JSON-RPC WebSocket. Emits a notification for every new L2 head produced by the Sequencer. Blocks include Arbitrum-specific fields (`l1BlockNumber`, `sendRoot`, `Arbitrum Public WebSocket APIs
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`eth_subscribe("newPendingTransactions")`. Accepted by Nitro for go-ethereum compatibility, but Arbitrum's centralized Sequencer orders transactions on receipt — there is no public mempool, so the strArbitrum Public WebSocket APIs
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`eth_subscribe("syncing")`. Accepted by Nitro for go-ethereum compatibility. Notifications reflect the local node's sync status.Arbitrum Public WebSocket APIs