The Chainstack Alternative That Doesn’t Punish You for Growing

Chainstack meters monthly request units, counts archive and trace twice and bills overage beyond the plan. SwiftNodes has no monthly quota on paid plans, charges one flat rate, accepts card or crypto and serves 128 chains on one key.

Feature-by-feature: SwiftNodes vs Chainstack

Feature data sourced from Chainstack’s public pricing page and SwiftNodes’ own published rates. Last reviewed 2026-10-13. Pricing changes frequently — verify on the source site before deciding.

What the same traffic costs

• List prices from each provider's public pricing page, checked 2026-10-13, billed monthly (annual discounts not applied).
• Ethereum mainnet, typical dApp mix: 30% eth_call, 20% eth_getBalance, 15% eth_blockNumber, 15% eth_getTransactionReceipt, 15% eth_getLogs, 5% eth_sendRawTransaction.
• SwiftNodes plans cap requests per second, not monthly volume; each row uses the cheapest plan that covers a peak of twice the average rate for that volume.
• Chainstack: 1 request unit per full-node request; archive and debug/trace requests (2 RU) would raise these figures.

Switching from Chainstack: what changes in your code

Standard JSON-RPC and WebSocket calls need only a new URL. Your Chainstack endpoint:

https://ethereum-mainnet.core.chainstack.com/<AUTH_TOKEN>

becomes:

https://rpc.swiftnodes.io/rpc/<chain>?key=YOUR_API_KEY
wss://rpc.swiftnodes.io/ws/<chain>?key=YOUR_API_KEY
(over HTTP the key can go in an x-api-key header instead; <chain> is eth, base, arbitrum, solana, ... see /docs/supported-chains)

Before

import { createPublicClient, http } from "viem";
import { mainnet } from "viem/chains";

const client = createPublicClient({
  chain: mainnet,
  transport: http("https://ethereum-mainnet.core.chainstack.com/YOUR_TOKEN"),
});

After

import { createPublicClient, http, webSocket } from "viem";
import { mainnet } from "viem/chains";

const client = createPublicClient({
  chain: mainnet,
  transport: http("https://rpc.swiftnodes.io/rpc/eth?key=YOUR_API_KEY"),
});

// Subscriptions: same key over WebSocket
const ws = createPublicClient({
  chain: mainnet,
  transport: webSocket("wss://rpc.swiftnodes.io/ws/eth?key=YOUR_API_KEY"),
});

Point a staging deployment at SwiftNodes first and compare a few hundred real calls against Chainstack; standard JSON-RPC methods return the same chain data from any provider, so differences point at a real problem worth knowing about before you cut over.

Plans are month to month: you can run both providers side by side during the switch and cancel Chainstack when you are satisfied.

Measured, not claimed

Every week we call each method on every EVM chain through the same endpoint customers use, and publish the result. From the run on 2026-10-18:

• 107EVM chains probed weekly through the customer path
• 97serve debug_traceCall
• 46serve trace_block (Parity traces)
• 88serve archive state with &archive=1
• 85accept JSON-RPC batch requests

Per-chain detail is on the method support matrix and in the method reference, including what each chain actually returns for everyday calls such as eth_estimateGas and eth_subscribe.

Why developers switch from Chainstack to SwiftNodes

Frequently asked questions