Question 1

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 2

Solana Devnet RPC: Endpoint, Faucet & Developer Setup

Accepted Answer

Solana Devnet is a public test cluster for building and testing Solana programs with free test SOL—no real value. The primary public RPC endpoint is `https://api.devnet.solana.com`, with WebSocket support at `wss://api.devnet.solana.com`. This endpoint is free but shared, and Solana enforces rate limits that can change; for heavy development, QA, or CI pipelines, a managed RPC provider is often more reliable.

To get started, request test SOL from the official faucet at `https://faucet.solana.com` or use the Solana CLI airdrop. Configure the Solana CLI with `solana config set --url devnet`, or in JavaScript/TypeScript create a `Connection` using the Devnet URL via `@solana/web3.js`. For production-like testing or repeated runs, evaluate a managed Devnet RPC endpoint such as OnFinality’s Solana Devnet offering—check the [network page](/networks/solana-devnet) for current endpoint options and WebSocket access. Remember: Devnet is for development and testing only; never deploy production workloads there. Choose a setup that matches your request volume, observation needs, and path to mainnet.

Question 3

How should teams use Arbitrum testnet RPC for releases?

Accepted Answer

# How should teams use Arbitrum testnet RPC for releases? Arbitrum testnet RPC matters because Web3 applications depend on stable endpoint access for reads, transactions, dashboards, and backend workflows. The right setup should match your workload, support the networks and testnets you need, make limits visible, and give you a scaling path when shared RPC is no longer enough. For Arbitrum Sepolia builders, infrastructure leads, DeFi teams, wallets, games, analytics teams, and backend engineers, this is part of production architecture. A basic endpoint can be fine for a prototype, but production systems need predictable latency, clear request behavior, reliable support, and enough observability to debug incidents.

In practice, the useful question is not just whether an endpoint exists. Teams should check testnet endpoint access, chain settings, faucet assumptions, staging checks, and the path to mainnet. That turns the page from a definition into a decision tool: it helps you decide what to test first, what belongs in staging, and when a production workload may need stronger isolation or clearer request visibility. If you already know the network you need, open /networks/arbitrum after using this checklist so you can test the endpoint against your real methods.

Question 4

How should teams use BNB testnet RPC for releases?

Accepted Answer

BNB testnet RPC matters because Web3 applications depend on stable endpoint access for reads, transactions, dashboards, and backend workflows. The right setup should match your workload, support the networks and testnets you need, make limits visible, and give you a scaling path when shared RPC is no longer enough. For BNB Testnet builders, infrastructure leads, DeFi teams, wallets, games, analytics teams, and backend engineers, this is part of production architecture. A basic endpoint can be fine for a prototype, but production systems need predictable latency, clear request behavior, reliable support, and enough observability to debug incidents.

In practice, the useful question is not just whether an endpoint exists. Teams should check BNB Smart Chain method support, testnet requirements, throughput patterns, and backend reliability. That turns the page from a definition into a decision tool: it helps you decide what to test first, what belongs in staging, and when a production workload may need stronger isolation or clearer request visibility. If you already know the network you need, open /networks/bnb-testnet after using this checklist so you can test the endpoint against your real methods.

Question 5

How should developers choose testnet RPC endpoints?

Accepted Answer

# How should developers choose testnet RPC endpoints? testnet RPC matters because multi-chain testnet applications depend on stable endpoint access for reads, transactions, dashboards, and backend workflows. The right provider should match your workload, support the networks and testnets you need, make limits visible, and give you a scaling path when shared RPC is no longer enough. For developers, QA teams, protocol teams, and release engineers, the provider decision is part of production architecture. A basic endpoint can be fine for a prototype, but production systems need predictable latency, clear request behavior, reliable support, and enough observability to debug incidents. This guide explains how to compare testnet RPC reliability for staging, QA, contract deployments, and release workflows without turning the decision into a generic vendor list.

In practice, the useful question is not just whether an endpoint exists. Teams should check testnet endpoint access, chain settings, faucet assumptions, staging checks, and the path to mainnet. That turns the page from a definition into a decision tool: it helps you decide what to test first, what belongs in staging, and when a production workload may need stronger isolation or clearer request visibility. If you already know the network you need, open /networks/eth-sepolia after using this checklist so you can test the endpoint against your real methods.

Question 6

How do I choose a Solana devnet RPC endpoint?

Accepted Answer

# How do I choose a Solana devnet RPC endpoint? Solana devnet RPC matters because Solana Devnet applications depend on stable endpoint access for reads, transactions, dashboards, and backend workflows. The right provider should match your workload, support the networks and testnets you need, make limits visible, and give you a scaling path when shared RPC is no longer enough. For Solana developers, QA teams, wallet teams, and backend engineers preparing releases, the provider decision is part of production architecture. A basic endpoint can be fine for a prototype, but production systems need predictable latency, clear request behavior, reliable support, and enough observability to debug incidents. This guide explains how to compare devnet endpoint reliability, staging workflows, and path to Solana mainnet RPC without turning the decision into a generic vendor list.

In practice, the useful question is not just whether an endpoint exists. Teams should check Solana methods, devnet support, request patterns, and whether shared or dedicated access fits the workload. That turns the page from a definition into a decision tool: it helps you decide what to test first, what belongs in staging, and when a production workload may need stronger isolation or clearer request visibility. If you already know the network you need, open /networks/solana-devnet after using this checklist so you can test the endpoint against your real methods.

API Service

Dedicated Nodes

Enterprise Nodes

Indexer Services

Network Prototyping Tools

Staking & Validators

AI Agent

RPC documentation entries

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

Solana Devnet RPC: Endpoint, Faucet & Developer Setup

How should teams use Arbitrum testnet RPC for releases?

How should teams use BNB testnet RPC for releases?

How should developers choose testnet RPC endpoints?

How do I choose a Solana devnet RPC endpoint?

Never Worry about Infrastructure Again

Supported Networks

Product

Company

Resources

Testnet RPC RPC Assistant

RPC documentation entries

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

Solana Devnet RPC: Endpoint, Faucet & Developer Setup

How should teams use Arbitrum testnet RPC for releases?

How should teams use BNB testnet RPC for releases?

How should developers choose testnet RPC endpoints?

How do I choose a Solana devnet RPC endpoint?

Never Worry about Infrastructure Again

Supported Networks

Product

Company

Resources