Base RPC node & API — chain ID 8453

Last updated: September 23, 2026

Get API key Read the documentation

Network details

What works today

Reads cover the standard EVM surface — balances, code and storage, blocks and receipts, transactions, gas and fee history. eth_getLogs is capped at 10,000 blocks per query; a wider range returns -32005 block_range_exceeds_10000, so split the range or read whole blocks with eth_getBlockReceipts. JSON-RPC batches are accepted and every element counts as one request.

Under investigation

WebSocket logs — we are not promising this surface while the defect is open, and it carries no CTA anywhere on the site. Until it is closed, poll eth_getLogs in 10,000-block windows instead of subscribing. The status here changes when the registry entry changes, not when the copy is rewritten.

Flashblocks, and what we do not claim about it

Base produces Flashblocks — preconfirmation blocks published ahead of the full L2 block. Triport relays that stream on wss://triport.io/ws/base-feed from Pro with the base:feed scope. An address filter is mandatory: a connection without one is refused with filter_required. We publish no latency numbers for this feed, because we have not measured them end to end through our own path — see Flashblocks.

Published but not sold yet

Transaction submission is published as accept_unverified: the route is implemented and confirmed, but acceptance of a valid transaction has not been verified end to end. See transactions.

Not supported on Base

admin_peers, engine_newPayloadV3, estimateUserOperationGas, eth_clientVersion, eth_sendPrivateRawTransaction, eth_sendRawTransactionConditional, optimism_outputAtBlock, optimism_rollupConfig, optimism_syncStatus, rollup_getInfo, txpool_content, txpool_inspect, txpool_status are not served. Asking for them returns an error rather than a silent fallback — see what is missing.

Limits and plans

Enterprise carries the same 250 RPS read ceiling as Business on Base — the difference is contractual, not a higher number. Plans: Basic $20, Pro $249, Business $499, Enterprise from $999 per month. Free is a 7-day trial with a single key in the EU region, not a permanent plan. See Base limits.

Every plan with its limits on every network, and what a plan costs at its cap: RPC pricing.

Quickstart

# curl
curl https://triport.io/rpc/base \
  -H 'x-token: $TRIPORT_API_KEY' -H 'Content-Type: application/json' \
  -d '{"jsonrpc":"2.0","id":1,"method":"eth_blockNumber","params":[]}'

# viem
import { createPublicClient, http } from "viem";
import { base } from "viem/chains";
const client = createPublicClient({
  chain: base,
  transport: http("https://triport.io/r/<API_KEY>/rpc/base"),
});

# Hardhat / Foundry
networks: { base: { url: "https://triport.io/r/<API_KEY>/rpc/base", chainId: 8453 } }
rpc_endpoints = { base = "https://triport.io/r/<API_KEY>/rpc/base" }

Base read methods

• eth_blockNumber
• eth_call
• eth_chainId
• eth_estimateGas
• eth_feeHistory
• eth_gasPrice
• eth_getBalance
• eth_getBlockByHash
• eth_getBlockByNumber
• eth_getBlockReceipts
• eth_getBlockTransactionCountByHash
• eth_getBlockTransactionCountByNumber
• eth_getCode
• eth_getLogs
• eth_getStorageAt
• eth_getTransactionByBlockHashAndIndex
• eth_getTransactionByBlockNumberAndIndex
• eth_getTransactionByHash
• eth_getTransactionCount
• eth_getTransactionReceipt
• eth_maxPriorityFeePerGas
• eth_syncing
• net_version
• web3_clientVersion