Metal L2 RPC Endpoint
Flat-rate Metal L2 RPC provider and Metal L2 RPC node access: free tier, no KYC, HTTP & WebSocket. Metal L2 mainnet chain ID 1750.
https://rpc.swiftnodes.io/rpc/metal-l2?key=YOUR_API_KEYwss://rpc.swiftnodes.io/ws/metal-l2?key=YOUR_API_KEYMetal L2 is an OP Stack Ethereum Layer 2 from Metallicus and a member of the Optimism Superchain, aimed at banking and compliance use cases. Gas is paid in ETH.
metal-l2Metal L2 on the SwiftNodes fleet, right now
10 of 12 probed RPC methods supported (archive, debug_traceCall, trace_transaction, trace_filter). The gaps are listed per chain in the method support matrix.
Status and latency from our health checks, refreshed about every 5 minutes. Uptime history. Method support probed automatically on 2026-10-11. Network status
Metal L2 developer facts, measured
- Block time:
- ~2 s (average of the last 1,000 blocks)
- Finality:
- the finalized tag trails the head by ~534 blocks (~18 min)
- eth_getLogs range:
- 50,000-block ranges accepted (the largest we test)
- Historical state:
- readable at least 1,000,000 blocks back
Measured 2026-10-11 through this page's endpoint, re-measured weekly. Limits can differ between the upstream nodes behind it. All chains: measured chain facts.
About Metal L2
Metallicus announced Metal L2 in December 2023 and the mainnet went live in March 2024; it joined the Superchain in May 2024. The network sits alongside Metal Blockchain, Metallicus's Layer 0 for financial institutions, and is intended to connect banks, payment partners and on-chain identity to Ethereum. L2BEAT reports that its fault proof system is deployed but not functional, so it relies on permissioned operators.
As a standard OP Stack chain, Metal L2 supports the usual Ethereum JSON-RPC methods and tooling, and the standard OP Stack bridge to Ethereum. Contracts are instantly upgradable per L2BEAT, which matters for teams assessing bridge risk. The ecosystem centers on compliant payments and the Metal Dollar (XMD) stablecoin.
Common Use Cases on Metal L2
- Bank-connected fiat on- and off-ramps
- Compliant stablecoin payments
- On-chain identity for regulated apps
- Superchain-compatible DeFi
Metal L2 Mainnet RPC URL (HTTP)
https://rpc.swiftnodes.io/rpc/metal-l2?key=YOUR_API_KEYMetal L2 WebSocket RPC URL
wss://rpc.swiftnodes.io/ws/metal-l2?key=YOUR_API_KEYQuick Start: Connect to Metal L2
cURL
curl -X POST https://rpc.swiftnodes.io/rpc/metal-l2?key=YOUR_API_KEY \
-H "Content-Type: application/json" \
-d '{"jsonrpc":"2.0","method":"eth_blockNumber","params":[],"id":1}'ethers.js
import { JsonRpcProvider } from "ethers";
const provider = new JsonRpcProvider(
"https://rpc.swiftnodes.io/rpc/metal-l2?key=YOUR_API_KEY"
);
const blockNumber = await provider.getBlockNumber();
console.log("Metal L2 block:", blockNumber);viem
import { createPublicClient, http } from "viem";
const client = createPublicClient({
transport: http("https://rpc.swiftnodes.io/rpc/metal-l2?key=YOUR_API_KEY"),
});
const blockNumber = await client.getBlockNumber();web3.py
from web3 import Web3
w3 = Web3(Web3.HTTPProvider("https://rpc.swiftnodes.io/rpc/metal-l2?key=YOUR_API_KEY"))
print("Metal L2 block:", w3.eth.block_number)Add Metal L2 to MetaMask
https://rpc.swiftnodes.io/rpc/metal-l2?key=YOUR_API_KEYwss://rpc.swiftnodes.io/ws/metal-l2?key=YOUR_API_KEYFeatures of SwiftNodes for Metal L2
- Load-balanced across multiple upstream nodes wherever a chain has more than one, with automatic failover
- Health-checked every 2 minutes with automatic failover
- Free tier available — no credit card or KYC required
- Flat-rate monthly pricing with no per-request fees
- HTTP and WebSocket support
- One API key works across all 75+ supported chains, including Metal L2
Rate Limits
| Plan | Price | HTTP req/s | WS msg/s |
|---|---|---|---|
| Free | $0/mo | 2 | 1 |
| Starter | $49/mo | 50 | 25 |
| Growth | $89/mo | 150 | 75 |
| Scale | $149/mo | 300 | 150 |
| Pro | $249/mo | 500 | 250 |
Frequently Asked Questions: Metal L2
What is the Metal L2 chain ID?
The Metal L2 mainnet chain ID is 1750 (hex 0x6d6).
What token pays gas on Metal L2?
ETH. Metal L2 uses the default OP Stack gas token, not METAL.
How is Metal L2 related to Metal Blockchain?
They are separate networks from Metallicus: Metal Blockchain is a Layer 0 for institution subchains, while Metal L2 is an OP Stack rollup settling to Ethereum.
Related L2 & rollup chains
Explore RPC endpoints for other L2 & rollup networks on SwiftNodes:
Ready to start building on Metal L2? Connect your wallet and get a free API key in 30 seconds. No email or KYC required.