BNB Smart Chain (BSC) RPC endpoint — node URL

Last updated: November 1, 2026

Get API key Read the documentation

Network details

curl https://triport.io/public/bsc \
  -H "Content-Type: application/json" \
  -d '{"jsonrpc":"2.0","id":1,"method":"eth_chainId","params":[]}'
# -> {"jsonrpc":"2.0","id":1,"result":"0x38"}

What works today

Read-only, and why that is stated first

BSC on Triport serves reads. There is no submission category on any plan, so eth_sendRawTransaction is not available here at all — if your application signs and broadcasts transactions, this endpoint covers the reading half only. Saying that up front is cheaper for both of us than a failed integration on the day you ship.

The /ws/bsc WebSocket

wss://triport.io/ws/bsc is mounted on both production regions. It speaks the standard EVM JSON-RPC Pub/Sub shape used by the BSC streaming channel: eth_subscribe for newHeads (pro), logs (basic, with a non-empty address or topics filter) and newPendingTransactions (free, mempool hashes), plus eth_unsubscribe and ordinary JSON-RPC and batch calls over the same socket. Reorg handling pushes the new canonical block's logs; orphaned-block removed: true notifications are not sent, and there is no syncing channel. For head tracking it replaces a polling loop against eth_getBlockByNumber.

Limits worth knowing before you build

eth_getLogs covers up to 50,000 blocks and 50,000 logs per response on the primary heavy class, with a secondary class chunked at 10,000 blocks and wide ranges split automatically. A result set that would exceed the logs ceiling is rejected with an upstream limit error rather than silently truncated, so page large scans by block range, keep an address filter where possible, and treat a range error as a signal to split.

txpool_* is one node's pool. txpool_content, txpool_inspect and txpool_status return the local pool of whichever node served the request, which is a sample of pending activity and not the network mempool. For a live pending feed use the /ws/bsc newPendingTransactions subscription, and still treat it as partial.

debug_traceBlockByNumber, debug_traceTransaction and trace_block are served through a deterministic trace router across the trace-capable nodes — best-effort, no SLA, and they share the heavy read budget.

Terms on this page: Event log · Archive node · Transaction receipt.

Limits and plans

2× burst buffer, included. Finite request-rate limits show sustained RPS and short burst capacity. A full buffer at 20 RPS can absorb up to 40 requests at once and refills at 20 requests per second. There is no quota on the number of bursts and no extra charge for them. Size ongoing traffic to sustained RPS. Categories with no per-category cap have no numeric burst ceiling. How burst capacity works.

Both BSC rows are operational defaults inherited from Polygon of the same plan — they are not the result of a BSC load test, and we publish them as per-category RPS limits rather than measured capacity. Unusually for our networks, the heavy budget equals the ordinary read budget here, so logs and archive reads are not rationed separately. 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. See BSC 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/bsc \
  -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 { bsc } from "viem/chains";
const client = createPublicClient({
  chain: bsc,
  transport: http("https://triport.io/r/<API_KEY>/bsc"),
});

# Hardhat / Foundry
networks: { bsc: { url: "https://triport.io/r/<API_KEY>/bsc", chainId: 56 } }
rpc_endpoints = { bsc = "https://triport.io/r/<API_KEY>/bsc" }

BNB Smart Chain read methods

• eth_blockNumber
• eth_call
• eth_chainId
• eth_estimateGas
• eth_feeHistory
• eth_gasPrice
• eth_getBalance
• eth_getBlockByNumber
• eth_getBlockReceipts
• eth_getBlockTransactionCountByNumber
• eth_getCode
• eth_getProof
• eth_getStorageAt
• eth_getTransactionByHash
• eth_getTransactionCount
• eth_getTransactionReceipt
• eth_maxPriorityFeePerGas
• eth_syncing
• net_listening
• net_peerCount
• net_version
• web3_clientVersion