Dedicated Optimism RPC node. A private Optimism RPC endpoint that only you use: no rate limits, every method on, one fixed monthly price.
OP Mainnet is an Ethereum layer-2 rollup built on the OP Stack and the first chain in the Optimism Superchain.
Optimism RPC endpoint and network details.
| Network | Optimism mainnet |
| Chain ID | 10 (0xa) |
| Currency | ETH |
| Public RPC URL | https://mainnet.optimism.io |
| Wallet | Add Optimism to MetaMask or another browser wallet. |
| Testnet pages | OP Sepolia Testnet |
| Interfaces | JSON-RPC · WebSocket |
| Dedicated endpoint | Your own Optimism RPC endpoint, from $319/mo → |
Public URLs are shared and rate limited: fine for a wallet, not for an app, bot or indexer. Facts from Optimism's official documentation.
Order a dedicated Optimism 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 Optimism 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
Optimism node requirements, and what we build.
Chain facts from Optimism's official documentation (docs.optimism.io). Where it is silent, the row says so.
| Node software | op-reth, op-node, Nethermind |
| Interfaces | JSON-RPC, WebSocket |
| Full node | Yes, from $319/mo |
| Archive node | Yes, from $1,149/mo |
| Validator | OP Mainnet block production is handled by a single sequencer role; no permissionless validator exists. |
| Chain ID | 10 |
| Gas token | ETH |
| Consensus | OP Stack optimistic rollup; single sequencer, fault-proof challenges |
| Block time | 2 seconds, full or empty |
| Finality | Near-immediate confirmations; 7-day challenge window for withdrawals |
| Official hardware guidance | OP Mainnet node: 16GB RAM suggested minimum and a reasonably modern CPU; full node snapshot approximately 700GB growing about 100GB every six months, archive node snapshot approximately 14TB growing about 3.5TB every six months (figures as of June 2025), local NVMe SSD recommended for archive nodes. source ↗ |
| Operator note | op-reth is the primary supported client (op-geth reached end of support 31 May 2026); official snapshots run about 700GB for full nodes and 14TB for archive, growing roughly 3.5TB per half-year. |
| 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 Optimism recently
- op-geth reached end-of-support on 2026-05-31 and does not support the Karst hardfork, so op-geth nodes can no longer follow the canonical chain; operators must run op-reth (or Nethermind). source ↗
- OP Mainnet hardforks: Holocene 9 Jan 2025, Isthmus 9 May 2025, Jovian 2 Dec 2025, Karst 8 Jul 2026; Lagoon not yet scheduled. source ↗
- kona-node (Rust) is documented as an experimental alternative rollup node; op-supernode exists for interop dependency sets. Legacy Geth is still needed only for pre-Bedrock historical data. source ↗
Sources: docs.optimism.io/operators/node-operators/rollup-node · docs.optimism.io/operators/node-operators/architecture · docs.optimism.io/operators/node-operators/tutorials/mainnet
Public Optimism RPC URLs, checked every week.
Free, shared Optimism endpoints from the chain registry that answered eth_chainId with 10 in our weekly check (4 of 5). Good for a wallet or a test; once an app, bot or indexer depends on it, move to a dedicated Optimism RPC endpoint.
| Endpoint | |
|---|---|
https://mainnet.optimism.io | |
https://optimism-rpc.publicnode.com | |
https://optimism.gateway.tenderly.co | |
https://optimism.drpc.org |
Dedicated Optimism RPC node: the questions buyers ask.
What is a Optimism RPC node?
A server running Optimism's node software (op-reth, op-node, Nethermind) 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 Optimism RPC node?
A Optimism 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 Optimism 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 Optimism RPC endpoint?
An RPC endpoint that only your applications use. It sits on a dedicated Optimism 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 Optimism node is live?
As soon as it has synced with the Optimism 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) and the client you pick (op-reth, op-node, Nethermind), 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 $319/mo for my Optimism 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 Optimism node run on?
A machine that meets Optimism'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.
Which Optimism client should I choose?
op-reth: Primary supported execution client for OP Mainnet; the docs' recommended path is the official op-reth + op-node images. op-node: Optimism-maintained reference rollup (consensus) node in Go that derives L2 blocks from L1 and drives the execution client over the Engine API. Nethermind: Third-party C# execution client listed as an alternative to op-reth.
Does Argusnodes run Optimism archive nodes and trace methods?
Yes. Optimism's documentation describes full-history operation; we run Optimism archive nodes, from $1,149/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 Optimism validator with Argusnodes?
OP Mainnet block production is handled by a single sequencer role; no permissionless validator exists. We run every node type the chain actually offers and none it does not.
Can I move my Optimism endpoint from another provider?
Yes. A dedicated Optimism 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 Optimism 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 Optimism 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 Optimism chain ID?
10 (hex 0xa), per Optimism's official documentation. A dedicated Optimism node answers eth_chainId with it, so wallets and libraries configured for Optimism work against your endpoint unchanged.
What is the Optimism RPC URL?
Public Optimism RPC URLs from the chain registry that answered our weekly check on chain ID 10: https://mainnet.optimism.io, https://optimism-rpc.publicnode.com, https://optimism.gateway.tenderly.co. Optimism's official documentation (docs.optimism.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 Optimism RPC URL of your own, on your domain if you want, that nobody else uses.
Is Optimism RPC free?
Yes, public Optimism 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 Optimism node is the paid option for an app, bot or indexer, at one fixed monthly price.
What is the best Optimism 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 Optimism the same as OP Mainnet?
Yes. OP Mainnet is the network's full name, chain ID 10, with ETH as its gas token. A dedicated Optimism RPC node and a dedicated OP Mainnet RPC node are the same thing.
How do I add Optimism to MetaMask with my own RPC URL?
Add a network manually with the chain ID 10, the currency symbol ETH and your private Optimism 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.