Abstract RPC Endpoint

Flat-rate Abstract RPC provider and Abstract RPC node access: free tier, no KYC, HTTP & WebSocket. Abstract mainnet chain ID 2741.

Abstract is an Ethereum ZK rollup built on ZKsync's ZK Stack by Igloo Inc., the parent company of Pudgy Penguins. It uses ETH for gas and targets consumer apps such as games, NFTs and social products.

About Abstract

Abstract opened its mainnet to the public in January 2025. It runs on the ZK Stack, posts data to Ethereum as blobs, and proves state with STARK proofs wrapped in SNARKs. Users typically interact through the Abstract Global Wallet, a smart contract wallet built on native account abstraction that signs in with email, social accounts or passkeys.

Abstract runs the ZKsync VM rather than the EVM, so its bytecode differs from Ethereum's. Developers should expect differences in contract deployment, some opcodes and precompiles, gas refunds and nonce handling, and should compile with ZKsync-compatible tooling. Standard JSON-RPC reads such as eth_call and eth_getLogs work as usual.

Common Use Cases on Abstract

• Onchain games
• NFT collections and marketplaces
• Social and consumer apps
• Smart-wallet onboarding with Abstract Global Wallet

Abstract Mainnet RPC URL (HTTP)

Abstract WebSocket RPC URL

Quick Start: Connect to Abstract

cURL

curl -X POST https://rpc.swiftnodes.io/rpc/abstract?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/abstract?key=YOUR_API_KEY"
);

const blockNumber = await provider.getBlockNumber();
console.log("Abstract block:", blockNumber);

viem

import { createPublicClient, http } from "viem";

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

const blockNumber = await client.getBlockNumber();

web3.py

from web3 import Web3

w3 = Web3(Web3.HTTPProvider("https://rpc.swiftnodes.io/rpc/abstract?key=YOUR_API_KEY"))
print("Abstract block:", w3.eth.block_number)

Add Abstract to MetaMask

Features of SwiftNodes for Abstract

• 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 Abstract

Rate Limits

Frequently Asked Questions: Abstract

Abstract RPC methods

Measured weekly through this endpoint: what each method returns on Abstract, its limits, and an example request.

• eth_blockNumbersupported
• eth_chainIdsupported
• eth_getBalancesupported
• eth_getBlockByNumbersupported
• eth_getTransactionByHashsupported
• eth_getTransactionReceiptsupported
• eth_callsupported
• eth_estimateGasnot measured
• eth_gasPricesupported
• eth_maxPriorityFeePerGassupported
• eth_sendRawTransactionsupported
• eth_getTransactionCountsupported
• eth_getCodesupported
• eth_subscribesupported
• eth_getLogssupported
• eth_getBlockReceiptssupported
• eth_feeHistorysupported
• eth_getProofnot available
• eth_createAccessListnot available
• debug_traceCallsupported
• trace_blocknot available
• trace_transactionnot available

Abstract guides from the blog

• Abstract RPC: A Developer's Guide (Chain ID 2741)Abstract is a ZK Stack rollup where most transactions come from smart accounts. Measured: 0.58 s blocks, a flat 0.045 gwei gas price, transfers using ~95k gas, a 10,000-log result cap, ~3.8 h to finalized, and full history from block 1.

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