Question 1

How to Get ZenChain Testnet ZTC Tokens: Faucet Guide and RPC Setup

Accepted Answer

# How to Get ZenChain Testnet ZTC Tokens: Faucet Guide and RPC Setup ZenChain is a Bitcoin-aligned Layer 1 blockchain that combines Bitcoin's security with Ethereum-compatible programmability. To build and test dApps on ZenChain Testnet, you need testnet ZTC tokens for gas fees. This guide covers how to claim ZTC from the official ZenChain faucet, alternative faucets, and how to configure your wallet with the correct RPC endpoint. Whether you are a developer deploying smart contracts or a user exploring the testnet, this article provides the essential steps to get started.

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 after using this checklist so you can test the endpoint against your real methods.

Question 2

Polygon Amoy RPC Guide: endpoints, faucet, MetaMask, and testnet checks

Accepted Answer

Polygon Amoy is the current Polygon PoS testnet. Developers use it to test contracts, wallets, dApps, and backend services before moving to Polygon mainnet. The practical setup is simple: add Amoy with chain ID 80002, fund a test wallet with POL from a faucet, connect an RPC endpoint, and verify your app’s read/write flow before launch.

This guide focuses on the checks that usually matter in development: MetaMask setup, faucet access, endpoint reliability, common RPC calls, and when to use an authenticated provider instead of a public testnet endpoint.

Question 3

What Is Chainstack? A Developer's Guide to Blockchain Infrastructure

Accepted Answer

# What Is Chainstack? A Developer's Guide to Blockchain Infrastructure Chainstack is a blockchain infrastructure platform that provides managed RPC nodes, dedicated nodes, and developer tools across 70+ blockchain networks. Founded in 2018 and headquartered in Burlington, MA, Chainstack aims to simplify access to Web3 infrastructure with features like geo-balanced Global Nodes, flat-fee pricing, and support for both mainnets and testnets. This guide explores Chainstack's core offerings, how developers use them, and how it compares to other providers like OnFinality. Whether you are building a DeFi protocol, NFT marketplace, or gaming dApp, understanding what Chainstack offers can help you evaluate the best infrastructure for your project. We'll cover key features, common use cases, and practical considerations for choosing an RPC provider.

In practice, the useful question is not just whether an endpoint exists. Teams should check supported methods, traffic shape, monitoring, pricing, and the path from testing to production. 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 after using this checklist so you can test the endpoint against your real methods.

Question 4

How to choose a TON RPC provider for production dApps?

Accepted Answer

# How to choose a TON RPC provider for production dApps? The Open Network (TON) is a sharded Layer 1 blockchain designed for mass adoption, powering Telegram Mini Apps, DeFi protocols, and payment systems. Choosing the right TON RPC provider is critical for ensuring low latency, high reliability, and access to TON-specific features like ADNL and archive data. This guide covers what to look for in a TON RPC provider, compares key criteria, and helps you select the best fit for your production workload.

In practice, the useful question is not just whether an endpoint exists. Teams should check supported methods, traffic shape, monitoring, pricing, and the path from testing to production. 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/ton after using this checklist so you can test the endpoint against your real methods.

Question 5

What is HydraDX and how do you connect to it via RPC?

Accepted Answer

# What is HydraDX and how do you connect to it via RPC? HydraDX (now rebranded as Hydration) is a next-generation DeFi protocol built as a parachain on Polkadot. Its flagship product is the Omnipool, an innovative automated market maker (AMM) that combines all assets into a single trading pool, enabling capital-efficient swaps, single-sided liquidity provisioning, and reduced slippage. For developers and infrastructure buyers, connecting to the HydraDX network via a reliable RPC endpoint is essential for building dApps, querying on-chain data, or submitting transactions. This guide covers everything you need to know about HydraDX RPC endpoints, how to choose a provider, and best practices for integration.

In practice, the useful question is not just whether an endpoint exists. Teams should check supported methods, traffic shape, monitoring, pricing, and the path from testing to production. 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/polkadot after using this checklist so you can test the endpoint against your real methods.

Question 6

What Is the SORA Blockchain and How Do You Connect to It?

Accepted Answer

# What Is the SORA Blockchain and How Do You Connect to It? SORA is a blockchain platform designed to create a decentralized monetary system and economic infrastructure. Built on Hyperledger Iroha v3, it uses a single logical ledger, deterministic finality, and lane-based scaling to support payments, DeFi, CBDCs, and enterprise applications. The network is governed through democratic mechanisms and aims to provide a unified state for global markets. For developers and infrastructure buyers, connecting to SORA requires reliable RPC endpoints. This guide covers SORA’s architecture, how to interact with the network, and best practices for choosing RPC infrastructure. OnFinality offers public RPC endpoints and dedicated node services for SORA, enabling seamless integration without managing your own node.

In practice, the useful question is not just whether an endpoint exists. Teams should check supported methods, traffic shape, monitoring, pricing, and the path from testing to production. 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/sora after using this checklist so you can test the endpoint against your real methods.

Question 7

Solana RPC API Guide: Methods, WebSocket & Commitment

Accepted Answer

Solana RPC API is a JSON-RPC 2.0 interface for reading on-chain state, submitting transactions, and subscribing to live updates. It supports HTTP POST for request-response methods and WebSocket for subscription methods. Use it to build wallets, dApps, and indexers. Core HTTP calls include `getAccountInfo`, `getBalance`, `getProgramAccounts`, `getLatestBlockhash`, `sendTransaction`, `simulateTransaction`, `getBlock`, and `getSlot`. The same method set runs on mainnet, devnet, and testnet, but use the environment that matches your workflow: mainnet uses real SOL, devnet uses test SOL from the official faucet, and testnet is for validator testing. Public endpoints (`https://api.mainnet-beta.solana.com` and `https://api.devnet.solana.com`) are fine for experiments; production workloads should verify provider rate limits, archive support, and WebSocket availability. Every method accepts an optional `commitment` parameter—`processed`, `confirmed`, or `finalized`—that determines how recent the returned data is. For transactions, simulate first, then submit with a recent blockhash, and confirm through signature status or WebSocket. Check the OnFinality Solana network page for endpoint details before you build.

Question 8

Solana RPC Providers for Mainnet, Devnet & Testnet

Accepted Answer

A practical Solana RPC setup covers more than one endpoint. Mainnet is the production cluster where real SOL and user traffic live. Devnet is the development cluster for testing programs and transactions with free test SOL from the official faucet at https://faucet.solana.com. Testnet is a separate cluster used for validator performance, network upgrades, and release exercises; it is not a general application testing environment. Public endpoints—https://api.mainnet-beta.solana.com for mainnet and https://api.devnet.solana.com for devnet—are available, but they are rate-limited and best for light tests. Managed RPC providers can offer authenticated endpoints, clearer limits, WebSocket support, and better observability across environments. Evaluate providers by whether they support the exact environments your team uses, match your RPC method mix, and provide a path from shared to dedicated capacity. OnFinality maintains Solana mainnet and Devnet resources; check the current plan for testnet coverage. Start with Devnet for iterating, use Mainnet for production, and keep environment configuration separate. Always verify current rate limits and endpoint availability in official or provider documentation, because they can change.

Question 9

Sui gRPC Guide: Endpoints, Streaming & JSON-RPC Migration

Accepted Answer

Sui gRPC is the type-safe, Protocol Buffers-based RPC interface exposed by Sui full nodes. It is the recommended production path for reading chain state, executing transactions, and consuming real-time streams. OnFinality provides managed Sui gRPC and RPC infrastructure on mainnet and testnet; the current endpoint details are published on /networks/sui. In practice, you use grpcurl with a GRPC_ENDPOINT placeholder and authorization metadata from your provider, then target services by name. LedgerService covers checkpoints and consensus data, StateService covers object reads and balances, TransactionExecutionService provides ExecuteTransaction and SimulateTransaction workflows, and SubscriptionService offers SubscribeCheckpoints, SubscribeTransactions, and SubscribeEvents for streaming. Because JSON-RPC is being retired, teams should plan a migration by mapping legacy read, write, and subscription workflows to these gRPC services. Work from generated clients or proto definitions, not hand-built JSON calls. Test on testnet with the faucet at https://faucet.sui.io, keep mainnet separate, and verify stream reconnection and field masks before production.

Question 10

Gnosis RPC: Endpoints, Providers, and Best Practices

Accepted Answer

# Gnosis RPC: Endpoints, Providers, and Best Practices Gnosis Chain (formerly xDai) is an EVM-compatible L1 blockchain known for its stable gas token (xDAI) and low transaction costs. To interact with Gnosis Chain, developers and applications need a reliable RPC (Remote Procedure Call) endpoint. This guide covers everything you need to know about Gnosis RPC—from public endpoints and professional providers to best practices for production use. Whether you're building a dApp, running a validator, or simply connecting a wallet, choosing the right Gnosis RPC provider is critical for performance, reliability, and security. We'll explore the available options and help you make an informed decision.

In practice, the useful question is not just whether an endpoint exists. Teams should check supported methods, traffic shape, monitoring, pricing, and the path from testing to production. 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/gnosis after using this checklist so you can test the endpoint against your real methods.

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

What is a Moonbeam RPC and how do you use it?

Accepted Answer

# What is a Moonbeam RPC and how do you use it? Moonbeam is an Ethereum-compatible smart contract parachain on the Polkadot network. A Moonbeam RPC (Remote Procedure Call) endpoint allows wallets, dApps, and other Web3 applications to interact with the Moonbeam blockchain by sending JSON-RPC requests. This guide covers what Moonbeam RPC endpoints are, how to find and use them, and best practices for choosing a reliable provider for your project.

In practice, the useful question is not just whether an endpoint exists. Teams should check supported methods, traffic shape, monitoring, pricing, and the path from testing to production. 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/moonbeam 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

How to Get ZenChain Testnet ZTC Tokens: Faucet Guide and RPC Setup

Polygon Amoy RPC Guide: endpoints, faucet, MetaMask, and testnet checks

What Is Chainstack? A Developer's Guide to Blockchain Infrastructure

How to choose a TON RPC provider for production dApps?

What is HydraDX and how do you connect to it via RPC?

What Is the SORA Blockchain and How Do You Connect to It?

Solana RPC API Guide: Methods, WebSocket & Commitment

Solana RPC Providers for Mainnet, Devnet & Testnet

Sui gRPC Guide: Endpoints, Streaming & JSON-RPC Migration

Gnosis RPC: Endpoints, Providers, and Best Practices

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

What is a Moonbeam RPC and how do you use it?

Never Worry about Infrastructure Again

Supported Networks

Product

Company

Resources

OnFinality RPC Assistant

RPC documentation entries

How to Get ZenChain Testnet ZTC Tokens: Faucet Guide and RPC Setup

Polygon Amoy RPC Guide: endpoints, faucet, MetaMask, and testnet checks

What Is Chainstack? A Developer's Guide to Blockchain Infrastructure

How to choose a TON RPC provider for production dApps?

What is HydraDX and how do you connect to it via RPC?

What Is the SORA Blockchain and How Do You Connect to It?

Solana RPC API Guide: Methods, WebSocket & Commitment

Solana RPC Providers for Mainnet, Devnet & Testnet

Sui gRPC Guide: Endpoints, Streaming & JSON-RPC Migration

Gnosis RPC: Endpoints, Providers, and Best Practices

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

What is a Moonbeam RPC and how do you use it?

Never Worry about Infrastructure Again

Supported Networks

Product

Company

Resources