Arbitrum One RPC endpoint

JSON-RPC 2.0 for Arbitrum One over HTTPS and WebSocket, with one Blockmetric token for every open chain.

Endpoint

Your endpoint token goes in the path (wallets and Hardhat take a URL) or in an Authorization header. Methods, weights and examples: Arbitrum One docs.

HTTPShttps://rpc.blockmetric.io/arbitrum/YOUR_TOKEN
WSSwss://rpc.blockmetric.io/arbitrum/YOUR_TOKEN
Headerhttps://rpc.blockmetric.io/arbitrum

Endpoint format. Available when your plan opens.

Arbitrum One on Blockmetric RPC

We open each chain, region and plan when enough teams ask for it. Join the waitlist for exactly what you need, and we e-mail you the moment it opens.

Global plans
On request
Dedicated throughput
On request
Price
In every Global plan at the same price per call; dedicated Arbitrum One throughput from $199 a month. RPC pricing

Arbitrum One facts

Chain ID
42161 (0xa4b1) · mainnet
Native token
ETH
Transport
HTTPS and WebSocket (eth_subscribe for new heads and logs)
Log queries
eth_getLogs up to 10,000 blocks per call
Archive
On every plan; trace and debug on the paid plans and on dedicated throughput.
Health
https://rpc.blockmetric.io/arbitrum/health (available when your plan opens)

Independent infrastructure, not affiliated with Arbitrum One.

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