The Ankr Alternative That Doesn’t Punish You for Growing

Ankr's premium RPC charges prepaid credits per request, $20 per million EVM calls, failed ones included. SwiftNodes charges one flat monthly rate, accepts card or crypto, requires no KYC and serves 128 chains on one key.

Feature-by-feature: SwiftNodes vs Ankr

Feature data sourced from Ankr’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.
• Ankr: 200 API credits per EVM request at $0.10 per million credits ($20 per million requests), from Ankr's docs. One older Ankr page describes Premium as flat-rate via sales; confirm with Ankr for large volumes.

Switching from Ankr: what changes in your code

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

https://rpc.ankr.com/eth/<API_KEY>

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://rpc.ankr.com/eth/YOUR_ANKR_KEY"),
});

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"),
});

Ankr-specific methods and what to call instead

Point a staging deployment at SwiftNodes first and compare a few hundred real calls against Ankr; 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 Ankr 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 Ankr to SwiftNodes

Frequently asked questions