Mezo RPC Endpoint
Flat-rate Mezo RPC provider and Mezo RPC node access: free tier, no KYC, HTTP & WebSocket. Mezo mainnet chain ID 31612.
https://rpc.swiftnodes.io/rpc/mezo?key=YOUR_API_KEYwss://rpc.swiftnodes.io/ws/mezo?key=YOUR_API_KEYMezo is a Bitcoin-focused EVM chain built by Thesis, the team behind tBTC, that uses BTC as its gas token. Its flagship product is MUSD, a BTC-backed stablecoin minted on the chain.
mezoMezo on the SwiftNodes fleet, right now
6 of 12 probed RPC methods supported (archive, debug_traceCall, eth_getProof, eth_feeHistory). 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
Mezo developer facts, measured
- Block time:
- ~3.86 s (average of the last 1,000 blocks)
- Finality:
- the latest block is already reported as finalized
- eth_getLogs range:
- 10,000-block ranges accepted; the next size we test was refused
- 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 Mezo
Mezo launched its mainnet on May 28, 2025. The chain client, mezod, is a heavily modified fork of Evmos built on the Cosmos SDK with CometBFT consensus, and BTC enters the chain through bridges such as tBTC.
Mezo is fully EVM-compatible, so Hardhat, Foundry and Ethereum JSON-RPC tools work as usual. The native BTC balance uses 18 decimals on both testnet and mainnet, so do not assume Bitcoin's 8 decimals when formatting amounts.
Common Use Cases on Mezo
- Borrowing MUSD against BTC
- BTC-gas DeFi and payments
- Bridging BTC via tBTC
- BTC yield strategies
Mezo Mainnet RPC URL (HTTP)
https://rpc.swiftnodes.io/rpc/mezo?key=YOUR_API_KEYMezo WebSocket RPC URL
wss://rpc.swiftnodes.io/ws/mezo?key=YOUR_API_KEYQuick Start: Connect to Mezo
cURL
curl -X POST https://rpc.swiftnodes.io/rpc/mezo?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/mezo?key=YOUR_API_KEY"
);
const blockNumber = await provider.getBlockNumber();
console.log("Mezo block:", blockNumber);viem
import { createPublicClient, http } from "viem";
const client = createPublicClient({
transport: http("https://rpc.swiftnodes.io/rpc/mezo?key=YOUR_API_KEY"),
});
const blockNumber = await client.getBlockNumber();web3.py
from web3 import Web3
w3 = Web3(Web3.HTTPProvider("https://rpc.swiftnodes.io/rpc/mezo?key=YOUR_API_KEY"))
print("Mezo block:", w3.eth.block_number)Add Mezo to MetaMask
https://rpc.swiftnodes.io/rpc/mezo?key=YOUR_API_KEYwss://rpc.swiftnodes.io/ws/mezo?key=YOUR_API_KEYFeatures of SwiftNodes for Mezo
- 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 Mezo
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: Mezo
What is the Mezo chain ID?
The Mezo mainnet chain ID is 31612 (0x7b7c).
How many decimals does BTC have on Mezo?
18. Mezo uses BTC as the native currency with 18 decimals on testnet and mainnet.
What consensus does Mezo use?
Mezo's client, mezod, is built on the Cosmos SDK and the CometBFT consensus engine, forked from Evmos.
Related L2 & rollup chains
Explore RPC endpoints for other L2 & rollup networks on SwiftNodes:
Ready to start building on Mezo? Connect your wallet and get a free API key in 30 seconds. No email or KYC required.