Question 1

How to Stake on BNB Smart Chain: A Step-by-Step Walkthrough

Accepted Answer

This walkthrough explains how to stake BNB on BNB Smart Chain (BSC), covering both delegation to validators and liquid staking options. It includes practical steps for connecting your wallet, choosing a validator, and monitoring your stake, plus guidance on RPC reliability for staking transactions.

Question 2

How to Get and Use USDC on BNB Testnet

Accepted Answer

This article explains how to obtain and use USDC on the BNB Smart Chain testnet. It covers the difference between native and bridged USDC, how to get testnet USDC via faucets or by deploying your own mock, and how to configure your dApp to interact with the token contract.

Question 3

What is the RPC URL for Binance Smart Chain?

Accepted Answer

The official public RPC URL for BNB Smart Chain is https://bnb.api.onfinality.io/public. This endpoint lets you query the BNB Smart Chain mainnet without running your own node. For production workloads, you should evaluate managed and dedicated RPC options that offer higher rate limits, archive data, and WebSocket support.

Question 4

What is the BNB Smart Chain RPC URL and how do I use it?

Accepted Answer

The BNB Smart Chain (BSC) RPC URL is the endpoint your dApp, wallet, or script uses to send JSON-RPC requests to the BSC network. The official OnFinality public endpoint is https://bnb.api.onfinality.io/public. This article explains how to configure it, what to check when choosing an RPC provider, and how to debug common issues.

Question 5

What is a BNB node and when should you run one?

Accepted Answer

A BNB node is a client that stores the BNB Smart Chain state and processes transactions. Running one gives you direct access to the chain, but it requires significant hardware and maintenance. For most applications, a managed RPC service like OnFinality provides a more practical way to interact with BNB Chain without the operational overhead.

Question 6

BNB Smart Chain Nodes: Full, Archive, Validator & RPC Nodes

Accepted Answer

BNB Smart Chain nodes are client instances that maintain a copy of BSC state, validate blocks, and serve JSON-RPC requests. Full nodes store current state and validate new blocks; archive nodes retain historical state for queries at any past block; fast nodes optimize throughput by skipping state verification; validator nodes participate in Proof of Staked Authority consensus. RPC nodes expose HTTP and WebSocket endpoints for wallets, dApps, and indexers. Most development teams need RPC access, not validator operations. You can run a node with the official BSC client or bsc-erigon, but self-hosting requires ongoing sync, storage, upgrades, backups, and monitoring. Managed RPC services remove that operational burden while providing production-grade endpoints, archive data, and failover. Use BNB Smart Chain mainnet chain ID 56 (0x38) and testnet chain ID 97 (0x61). OnFinality provides EVM-compatible HTTPS and WebSocket RPC, archive support, and public endpoints for mainnet and testnet. This guide covers node roles, self-hosting, archive workloads, validator vs. RPC operations, and a decision checklist for choosing infrastructure.

Question 7

BNB Smart Chain RPC Endpoint and Chain Settings

Accepted Answer

BNB Smart Chain (BSC) is an EVM-compatible network with mainnet chain ID 56 (hex 0x38) and testnet chain ID 97 (hex 0x61). To connect, you need an RPC URL, the correct chain ID, currency symbol BNB (tBNB on testnet), and a block explorer. Official public mainnet endpoints, such as https://bsc-dataseed.bnbchain.org, are available for testing and light use, while OnFinality offers a public mainnet endpoint at https://bnb.api.onfinality.io/public with EVM-compatible HTTPS and WebSocket RPC, archive support, and trace/API access. Before trusting any endpoint, send an eth_chainId request: a mainnet response returns 0x38, and testnet returns 0x61. Using the wrong chain ID is a common cause of rejected transactions and can lead to funds loss if you connect to the wrong network. Public endpoints often have rate limits and may disable eth_getLogs, so production applications should evaluate managed endpoints with predictable throughput, archive data, and WebSocket support. This guide covers wallet configuration, curl, ethers, and viem setup, common endpoint failures, and a path to OnFinality's BNB network hub and testnet guide.

Question 8

BSC API: JSON-RPC Methods, WebSocket, Finality & Examples

Accepted Answer

The BSC API is the JSON-RPC interface for BNB Smart Chain (BSC), an EVM-compatible network with mainnet chain ID 56 and testnet chain ID 97. Developers use standard Ethereum-style methods such as eth_blockNumber, eth_getBalance, eth_call, eth_getLogs, and eth_sendRawTransaction, plus BSC-specific finality methods like eth_getFinalizedHeader, eth_getFinalizedBlock, and eth_newFinalizedHeaderFilter. OnFinality exposes EVM-compatible HTTPS and WebSocket endpoints for BSC, including a public mainnet endpoint at https://bnb.api.onfinality.io/public and a public testnet endpoint at https://bnb-testnet.api.onfinality.io/public. For production workloads, use your OnFinality API key and private endpoint from the dashboard. This page covers method categories, finality behavior, WebSocket subscriptions, and curl/viem examples. Use the official BNB public endpoints only for testing: the public list rate limit is 10K/5min and eth_getLogs is disabled on listed mainnet endpoints; OnFinality endpoints are managed separately and should be validated against your plan.

Question 9

BNB Testnet RPC: Endpoint, Chain ID, Faucet & Wallet Setup

Accepted Answer

BNB Smart Chain Testnet (BSC Testnet) uses chain ID 97 (0x61) and tBNB as gas. For light testing, you can use the official public endpoint https://bsc-testnet-dataseed.bnbchain.org (and other official dataseed endpoints), but those are rate-limited to 10,000 requests per 5 minutes and may disable eth_getLogs. OnFinality provides a public BNB testnet RPC at https://bnb-testnet.api.onfinality.io/public with EVM-compatible HTTPS and WebSocket support, archive data, and trace/API access for developers who need more consistent test infrastructure. To start, request tBNB from the BNB faucet, add the network to MetaMask with the correct settings, and verify connectivity with eth_chainId or eth_blockNumber. Keep the testnet endpoint separate from mainnet (chain ID 56 / 0x38). If you encounter 429 rate-limit errors or wrong-network rejections, switch to a private endpoint or recheck the chain ID. For contract deployment and CI/CD workflows, refer to the BNB Smart Chain Testnet Developer Guide.

Question 10

Binance Smart Chain Developer Guide for BNB Smart Chain

Accepted Answer

Binance Smart Chain, now officially BNB Smart Chain (BSC), is an EVM-compatible layer-1 blockchain with 3-second block times, mainnet chain ID 56, and testnet chain ID 97. Solidity developers can reuse Ethereum tooling—Hardhat, Foundry, OpenZeppelin, ethers.js, and web3.js—with minimal configuration changes. You need a reliable RPC endpoint: OnFinality provides EVM-compatible HTTPS and WebSocket RPC endpoints, Archive support, and trace/API access at https://bnb.api.onfinality.io/public for mainnet and https://bnb-testnet.api.onfinality.io/public for testnet. For testnet development use chain ID 97 and obtain tBNB from a faucet; for mainnet use chain ID 56 and BNB for gas. Deployment follows standard EVM flow: compile, test, estimate gas, send signed transaction, monitor receipt, and verify on BscScan. Handle nonces sequentially to avoid stuck or rejected transactions. Use testnet-to-mainnet promotion with security checks, secret management, contract verification, and rollback readiness. This guide covers Solidity tooling, chain configuration, contract deployment, finality, nonce/gas handling, RPC error diagnosis, and pre-mainnet operational checklists.

Question 11

BNB Smart Chain Testnet Developer Guide for Contracts, CI/CD & Mainnet Readiness

Accepted Answer

BNB Smart Chain Testnet (chain ID 97 / 0x61) is an EVM-compatible sandbox that mirrors BNB Smart Chain mainnet and uses valueless tBNB for gas. This guide helps developers set up Hardhat and Foundry projects, deployment scripts, contract tests, frontend and backend integration, CI/CD pipelines, and a mainnet readiness checklist. OnFinality provides a public testnet endpoint at https://bnb-testnet.api.onfinality.io/public and a dedicated testnet endpoint page for workspace endpoints. Because testnet state can reset or faucets can rate-limit, treat it as a rehearsal environment: automate tBNB funding, isolate credentials, use environment variables, and add retries for transient RPC errors. The goal is not just to deploy a contract, but to validate the same request patterns, event subscriptions, and failure modes you will face on mainnet. This page focuses on BNB Smart Chain (BSC); opBNB and BNB Greenfield are separate networks. If you need endpoint details, see /rpc-assistant/bnb-chain-testnet-endpoint. Use /rpc-assistant/binance-smart-chain-developer for broader BSC developer workflows and /networks/bnb when you are ready for mainnet.

Question 12

BNB Chain RPC Providers Compared: Public, Managed & Dedicated

Accepted Answer

Choosing between public, managed, and dedicated BNB Chain RPC providers comes down to workload risk. Public endpoints, such as the official BSC dataseed URLs, are fine for quick tests but usually impose strict rate limits and disable heavy methods like eth_getLogs. Managed RPC services (including OnFinality's shared BNB endpoint at https://bnb.api.onfinality.io/public) add API key management, analytics, and support, making them suitable for many production dApps. Dedicated BNB nodes provide isolated compute and predictable capacity for high-throughput DeFi, trading, indexing, or gaming workloads. When comparing providers, verify mainnet and testnet coverage (chain IDs 56 and 97), supported methods (standard EVM plus BSC-specific calls like eth_getFinalizedHeader), archive and trace access, WebSocket stability, rate limit and burst policies, regional latency, availability history, failover communication, analytics, and pricing. Test with realistic traffic before committing. Use /networks/bnb as a starting point for endpoint details, then evaluate whether shared RPC or a dedicated node fits your scaling path.

API Service

Dedicated Nodes

Enterprise Nodes

Indexer Services

Network Prototyping Tools

Staking & Validators

AI Agent

RPC documentation entries

How to Stake on BNB Smart Chain: A Step-by-Step Walkthrough

How to Get and Use USDC on BNB Testnet

What is the RPC URL for Binance Smart Chain?

What is the BNB Smart Chain RPC URL and how do I use it?

What is a BNB node and when should you run one?

BNB Smart Chain Nodes: Full, Archive, Validator & RPC Nodes

BNB Smart Chain RPC Endpoint and Chain Settings

BSC API: JSON-RPC Methods, WebSocket, Finality & Examples

BNB Testnet RPC: Endpoint, Chain ID, Faucet & Wallet Setup

Binance Smart Chain Developer Guide for BNB Smart Chain

BNB Smart Chain Testnet Developer Guide for Contracts, CI/CD & Mainnet Readiness

BNB Chain RPC Providers Compared: Public, Managed & Dedicated

Never Worry about Infrastructure Again

Supported Networks

Product

Company

Resources

BNB Chain RPC Assistant

RPC documentation entries

How to Stake on BNB Smart Chain: A Step-by-Step Walkthrough

How to Get and Use USDC on BNB Testnet

What is the RPC URL for Binance Smart Chain?

What is the BNB Smart Chain RPC URL and how do I use it?

What is a BNB node and when should you run one?

BNB Smart Chain Nodes: Full, Archive, Validator & RPC Nodes

BNB Smart Chain RPC Endpoint and Chain Settings

BSC API: JSON-RPC Methods, WebSocket, Finality & Examples

BNB Testnet RPC: Endpoint, Chain ID, Faucet & Wallet Setup

Binance Smart Chain Developer Guide for BNB Smart Chain

BNB Smart Chain Testnet Developer Guide for Contracts, CI/CD & Mainnet Readiness

BNB Chain RPC Providers Compared: Public, Managed & Dedicated

Never Worry about Infrastructure Again

Supported Networks

Product

Company

Resources