Dedicated Arbitrum RPC node. A private Arbitrum RPC endpoint that only you use: no rate limits, every method on, one fixed monthly price.
Arbitrum One is an optimistic rollup layer-2 that settles to Ethereum, using the BoLD dispute protocol to confirm valid chain states.
Arbitrum RPC endpoint and network details.
| Network | Arbitrum mainnet |
| Chain ID | 42161 (0xa4b1) |
| Currency | ETH |
| Public RPC URL | https://arb1.arbitrum.io/rpc |
| Wallet | Add Arbitrum to MetaMask or another browser wallet. |
| Testnet pages | Arbitrum Sepolia |
| Interfaces | JSON-RPC · WebSocket |
| Dedicated endpoint | Your own Arbitrum RPC endpoint, from $509/mo → |
Public URLs are shared and rate limited: fine for a wallet, not for an app, bot or indexer. Facts from Arbitrum's official documentation.
Order a dedicated Arbitrum RPC node.
Pick the node and the city. Where a city shows a price, pay in crypto and we start building; anywhere else, you get a firm quote within the hour.
What every dedicated Arbitrum node includes.
- Fully managed at no additional cost: we set it up, sync it, monitor it 24/7, apply every upgrade and fix it if anything breaks
- Monitoring at no additional cost: live node and server metrics for your node in your dashboard
- No rate limits: the hardware is the only ceiling
- Every RPC method on, debug and trace included
- Unlimited WebSocket connections
- Your own domain and an IP allowlist you control
- 99.99% SLA in writing, with service credits
- 24/7 support answered by engineers
Arbitrum node requirements, and what we build.
Chain facts from Arbitrum's official documentation (docs.arbitrum.io). Where it is silent, the row says so.
| Node software | Nitro |
| Interfaces | JSON-RPC, WebSocket |
| Full node | Yes, from $509/mo |
| Archive node | Yes, from $699/mo |
| Validator | Public validator role; quoted per setup. Validation is permissionless under BoLD (watchtower or active validator); block production is by the Arbitrum sequencer. |
| Chain ID | 42161 |
| Gas token | ETH |
| Consensus | Optimistic rollup (Nitro) with permissionless BoLD validation |
| Block time | 250ms default |
| Finality | Hard finality in 10 to 20 minutes on Ethereum; 6.4-day withdrawal challenge period |
| Official hardware guidance | Arbitrum's 'Prepare to run a node' page gives a minimum of 64 GB DDR5 RAM (128 GB or more recommended), an 8 core 3rd generation CPU such as AWS i4i.2xlarge (16+ core newer generation recommended) and locally attached NVMe SSDs 'ideally several terabytes'; Arbitrum One snapshots are about 2.3 TB (pruned HashDB), 2.4 TB (full-path PathDB) and about 3.7 TB (PathDB archive). source ↗ |
| Operator note | Official snapshots initialize nodes without a genesis sync: the Arbitrum One pruned snapshot is about 2.3TB. |
| Argusnodes build | Meets the official guidance above with headroom on top, never at the minimum. Ask and we tell you the exact CPU, RAM and NVMe; root access on request. |
What changed on Arbitrum recently
- BoLD is active on Arbitrum One, Nova and Sepolia, replacing the allow-listed validator set with permissionless validation (activated in February 2025 via Arbitrum DAO vote; docs confirm 'active', exact date sourced only to the DAO forum/press). source ↗
- Nitro now offers PathDB (online pruning, archive with state-history index) alongside the default HashDB; full nodes keep 345,600 blocks (24 hours at 250 ms) of state history by default, archive nodes keep everything. source ↗
- Current recommended image offchainlabs/nitro-node:v3.11.3-beb2108. source ↗
Sources: docs.arbitrum.io/run-arbitrum-node/run-full-node · docs.arbitrum.io/how-arbitrum-works/bold/gentle-introduction · docs.arbitrum.io/run-arbitrum-node/start-here
Public Arbitrum RPC URLs, checked every week.
Free, shared Arbitrum endpoints from the chain registry that answered eth_chainId with 42161 in our weekly check (2 of 5). Good for a wallet or a test; once an app, bot or indexer depends on it, move to a dedicated Arbitrum RPC endpoint.
| Endpoint | |
|---|---|
https://arb1.arbitrum.io/rpc | |
https://arbitrum-one-rpc.publicnode.com |
Dedicated Arbitrum RPC node: the questions buyers ask.
What is a Arbitrum RPC node?
A server running Arbitrum's node software (Nitro) that answers RPC requests: reading balances and state, and sending transactions. It can be public and free, shared by a provider's customers, or dedicated to one client.
What is a dedicated Arbitrum RPC node?
A Arbitrum node on a bare-metal server that runs for one client only, with its own private RPC endpoint. Nobody else's traffic shares the machine, so there is no rate limit and no noisy neighbour, and every method the client exposes is on. Argusnodes builds, syncs, monitors and upgrades it for you at one fixed monthly price.
Is my Arbitrum node managed and monitored, and what does that cost?
Yes, and so is monitoring, both at no additional cost. We set up and sync the node, watch it 24/7 with live node and server metrics in your dashboard, apply every network upgrade and client update, and fix it when something breaks. If you need help around the node, such as connecting it to your app, moving off another provider or setting up an indexer, our engineers help with that too, at the same monthly price.
What is a private Arbitrum RPC endpoint?
An RPC endpoint that only your applications use. It sits on a dedicated Arbitrum node that is yours alone, on your own domain if you want one, and answers only the IP addresses you allowlist. No other customer's traffic shares the machine, so nobody else's burst becomes your latency, and there is no rate limit to hit.
How long until my Arbitrum node is live?
As soon as it has synced with the Arbitrum network, and we tell you the moment it is ready. Sync time depends on the node type (an archive node replays the full history, so it takes longest), so your quote carries an estimate for your exact setup rather than a number that is sometimes wrong. The quote itself lands within the hour, around the clock.
What is included in the from $509/mo for my Arbitrum node?
Everything the node can do, with the premium add-ons other providers bill separately included free: unlimited RPS, every RPC method including debug and trace, unlimited WebSocket connections, your own domain with an IP allowlist, 18 cities to choose from, a 99.99% SLA with credits, 24/7 engineer support and live p50/p99 in your dashboard. There is no add-on price list because nothing is an add-on.
What hardware will my Arbitrum node run on?
A machine that meets Arbitrum's official hardware guidance (quoted in the spec sheet on this page) with headroom on top, on a dedicated bare-metal server. We never build at the minimum, because a node sized to the minimum becomes the bottleneck the day the chain grows. Ask before you order and we tell you the exact CPU, RAM and NVMe; the delivery email names the server, and root access is yours if you want it.
Does Argusnodes run Arbitrum archive nodes and trace methods?
Yes. Arbitrum's documentation describes full-history operation; we run Arbitrum archive nodes, from $699/mo, with trace and historical queries unmetered. Debug and trace methods are on for full nodes too, within their state window.
Can I run a Arbitrum validator with Argusnodes?
Yes. Arbitrum has a public validator role (Validation is permissionless under BoLD (watchtower or active validator); block production is by the Arbitrum sequencer), and we operate validators under the same monitoring and support as RPC nodes, quoted per setup. Pick "Validator" in the configurator and describe the stake setup.
Can I move my Arbitrum endpoint from another provider?
Yes. A dedicated Arbitrum node speaks the same JSON-RPC and WebSocket interfaces as the shared endpoint you use today, so migration is pointing your application at your own endpoint. Billing is monthly with no lock-in on our side, and support engineers are on the channels 24/7 during cutover.
Are there rate limits or connection caps on a dedicated Arbitrum node?
No artificial ones: unlimited RPS and no connection cap. The machine is yours alone, so the hardware is the only ceiling: if it can serve the request, you can send it. There is no per-plan connection cap because there is no plan tier.
How do I pay for my Arbitrum node, and can I cancel?
In crypto, with no KYC and no setup fee. Pay monthly, or save 5% quarterly and 10% annually, and your price is locked for as long as your node runs. Cancel at the end of any term; the node is provisioned for you alone, so there is no meter to escape and no exit fee.
What is the Arbitrum chain ID?
42161 (hex 0xa4b1), per Arbitrum's official documentation. A dedicated Arbitrum node answers eth_chainId with it, so wallets and libraries configured for Arbitrum work against your endpoint unchanged.
What is the Arbitrum RPC URL?
Public Arbitrum RPC URLs from the chain registry that answered our weekly check on chain ID 42161: https://arb1.arbitrum.io/rpc, https://arbitrum-one-rpc.publicnode.com. Arbitrum's official documentation (docs.arbitrum.io) is the reference for its own endpoints. They are shared, rate limited and run by third parties, so they are fine for a wallet and not for an application. A dedicated node gives you a private Arbitrum RPC URL of your own, on your domain if you want, that nobody else uses.
Is Arbitrum RPC free?
Yes, public Arbitrum RPC endpoints are free: the ones that passed our weekly check are listed on this page. They are shared and rate limited, which is fine for a wallet or a test. A dedicated Arbitrum node is the paid option for an app, bot or indexer, at one fixed monthly price.
What is the best Arbitrum RPC provider?
It depends on the workload. Check four things: whether the node is single-tenant or shared, whether there are rate limits or credits, whether archive, trace and debug are included, and who answers when it breaks. For a wallet, a free public endpoint is enough. For an app, bot or indexer, a dedicated node with no rate limits avoids the throttling of shared plans. Our comparison pages (argusnodes.com/vs) set us against other providers, with sources.
Is Arbitrum the same as Arbitrum One?
Yes. Arbitrum One is the network's full name, chain ID 42161, with ETH as its gas token. A dedicated Arbitrum RPC node and a dedicated Arbitrum One RPC node are the same thing.
How do I add Arbitrum to MetaMask with my own RPC URL?
Add a network manually with the chain ID 42161, the currency symbol ETH and your private Arbitrum RPC URL in place of the public one. The steps are the same as for a public URL; the difference is that the endpoint is yours alone, so the wallet never hits someone else's rate limit.