Avalanche C-Chain RPC Nodes & Endpoints

Avalanche C-Chain RPC URLs you can use right now

Third-party endpoints, free and shared. They serve the C-Chain only, which is the chain almost every integration means, and they rate-limit like any other public endpoint once you index rather than browse.

import { JsonRpcProvider } from "ethers";

const provider = new JsonRpcProvider("https://api.avax.network/ext/bc/C/rpc");
const blockNumber = await provider.getBlockNumber();
console.log("Avalanche C-Chain block:", blockNumber);

The C-Chain is not the whole of Avalanche

Avalanche is not one chain but a platform running three built-in ones, and an RPC URL points at exactly one of them. The C-Chain is the EVM chain, the one with chain ID 43114 that your Solidity contracts, wallets, and ethers code target; it is what people almost always mean by an Avalanche RPC endpoint. The X-Chain handles asset creation and transfers under a different model entirely, and the P-Chain coordinates validators and subnets. They speak different APIs, so EVM tooling that works perfectly against the C-Chain has nothing to say to the other two.

Subnets extend the same idea further. An Avalanche subnet is its own network with its own validators, its own chain ID, and its own RPC, so a subnet integration is a separate endpoint and a separate indexed history rather than a parameter on your C-Chain connection. This matters for anyone planning capacity: institutional and gaming deployments on Avalanche frequently span the C-Chain plus one or more subnets, and each of those is a distinct node to reach, not a distinct route on the same one.

Where shared C-Chain endpoints stop being enough

Avalanche's pitch is deterministic finality in one to two seconds, and shared RPC quietly spends that advantage. If the C-Chain finalises in a second but your reads queue behind other tenants at a public gateway, the user experience is set by the gateway, not by Snowman consensus. Institutional and RWA platforms on Avalanche also tend to carry SLAs that a best-effort public endpoint simply cannot back.

A dedicated Avalanche RPC node makes the chain's speed visible again: reads return at hardware pace, subscriptions do not drop during volume spikes, and there is a real throughput figure you can put in front of a compliance team. On BLAZED.sh, your service runs in a container on the node host, so the path from consensus to your code is a local socket.

Avalanche RPC latency is a distance problem

One to two seconds of finality is only meaningful if the read path does not add its own seconds. Remote gateways add a public-internet round trip, typically tens to low hundreds of milliseconds per call, and more under load. Co-location deletes that term from the equation: on our live Ethereum product, calls from the co-located container finish in under 10 milliseconds, and dedicated Avalanche C-Chain nodes will run on the same architecture.

What dedicated Avalanche node hosting will cost

BLAZED.sh prices node access in per-request credits granted monthly by your subscription, with a deliberately narrow weight spread: most RPC methods cost a single credit, and only a handful of heavy operations cost more. Dedicated Avalanche C-Chain nodes will launch on the same credit model, with the waitlist deciding rollout priority.

C-Chain workloads skew toward plain reads and event queries, which are single-credit calls, so institutional teams can forecast a month's RPC bill from expected request counts alone.

Perfect for

What is Avalanche?

Avalanche splits its primary network into three chains; the C-Chain is where smart contracts live and where developers point EVM tooling using chain ID 43114. Its Snowman consensus gives deterministic finality in roughly one to two seconds, which is attractive for exchanges, RWA platforms, and games that want fast settlement without deep reorg risk. Beyond the C-Chain, Avalanche's subnet architecture lets teams run app-specific chains, but the C-Chain remains the main RPC target for most integrations. As always, the chain's speed only translates into a fast user experience if the RPC layer keeps up under sustained reads and subscriptions: the case for a dedicated, low-latency node.

Avalanche RPC: frequently asked questions