Question 1

What is a TON RPC node and how do you use one?

Accepted Answer

# What is a TON RPC node and how do you use one? The Open Network (TON) is a layer-1 blockchain designed for high-speed, scalable transactions. To interact with the TON blockchain—whether you're building a wallet, a dApp, or an analytics tool—you need a TON RPC node. A TON RPC node acts as a gateway, allowing your application to query blockchain data and submit transactions. This guide explains what a TON RPC node is, the different node modes, how to choose between running your own node or using a managed provider, and best practices for production use.

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 2

Polkadot RPC: A Complete Guide to Endpoints, Methods, and Providers

Accepted Answer

# Polkadot RPC: A Complete Guide to Endpoints, Methods, and Providers Polkadot's unique architecture as a Layer 0 relay chain with multiple parachains requires a nuanced understanding of its RPC infrastructure. Unlike single-chain networks, Polkadot exposes multiple RPC endpoints—one for the relay chain, one for each parachain (like Asset Hub), and optional Ethereum-compatible JSON-RPC endpoints for EVM-based tools. This guide covers everything you need to know about Polkadot RPC endpoints, JSON-RPC methods, and how to choose a reliable RPC provider for your dApp or infrastructure. Whether you are a developer building on Polkadot Hub, a parachain team needing dedicated node access, or an infrastructure buyer evaluating providers, this article provides practical, actionable information. We'll explore the available RPC methods, how to connect to different networks, and what to look for in a production-grade RPC service.

Question 3

Polygon RPC Providers & Nodes: Public, Managed & Dedicated

Accepted Answer

Polygon RPC providers expose JSON-RPC endpoints that let dApps, wallets, and backend services read chain data, send transactions, and interact with smart contracts. Polygon PoS mainnet uses chain ID 137, while Amoy testnet uses 80002. This guide compares public, shared managed, and dedicated access options without vendor rankings. Instead, evaluate providers by production fit: method coverage, rate limits, WebSocket reliability, monitoring, archive and Trace support, and the ability to move from shared to dedicated infrastructure when needed. Public endpoints suit prototyping and low-traffic development; shared managed plans add higher limits and operational visibility; dedicated nodes offer isolated capacity and custom configuration for high-volume or latency-sensitive workloads. Bor and Heimdall serve different layers—Bor handles execution and JSON-RPC, while Heimdall manages consensus and checkpoints. Understanding these roles helps you troubleshoot and plan capacity. Use the decision framework below to match infrastructure to your actual workload, test with Amoy, and review current plan details before production.

Question 4

What is Stellar RPC and how do you use it?

Accepted Answer

Stellar RPC (Remote Procedure Call) is the standard interface for interacting with the Stellar blockchain network. It allows developers to query ledger data, submit transactions, and manage accounts programmatically. Stellar's RPC API is distinct from Ethereum-compatible JSON-RPC; it uses a custom Horizon API built on RESTful principles, but also supports a Soroban RPC for smart contract interactions. This guide covers the essential endpoints, authentication, and best practices for building on Stellar. Whether you are building a payment application, a decentralized exchange, or a smart contract on Soroban, reliable RPC access is critical. OnFinality provides managed Stellar RPC endpoints with high availability and low latency, supporting both Horizon and Soroban RPC for production workloads.

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

Question 5

Polkadot Asset Hub Migration: A Developer's Guide to the Relay Chain Transition

Accepted Answer

# Polkadot Asset Hub Migration: A Developer's Guide to the Relay Chain Transition The Polkadot Asset Hub migration, executed on November 4, 2025, moved core user-facing functions—balances, staking, governance—from the Relay Chain to the Asset Hub system parachain. This architectural shift reduces Relay Chain bloat, enables faster upgrades, and prepares the network for the JAM (Join-Accumulate Machine) era. For developers and infrastructure operators, understanding the migration's impact on RPC endpoints, transaction workflows, and node operations is critical. This guide covers what changed, how to update your integrations, and best practices for connecting to Asset Hub via reliable RPC infrastructure.

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

How to Use a Bittensor Explorer to Monitor the TAO Network

Accepted Answer

# How to Use a Bittensor Explorer to Monitor the TAO Network A Bittensor explorer is a web-based tool that lets you view live blockchain data for the Bittensor network, including blocks, transactions, extrinsics, events, and subnet activity. Unlike general-purpose block explorers, Bittensor explorers are tailored to the Subtensor chain and provide specialized views for staking, delegation, subnet tokens, and validator performance. Whether you are a miner, validator, or developer, using a Bittensor explorer is essential for tracking on-chain operations, debugging transactions, and analyzing network health. This guide covers the core features of Bittensor explorers, how to interpret key data, and how to access the Bittensor network programmatically using RPC endpoints. For developers who need reliable infrastructure, OnFinality offers managed RPC APIs and dedicated nodes for Bittensor, ensuring low-latency access to the Subtensor chain.

Question 7

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 8

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 9

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 10

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 11

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 12

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.

API Service

Dedicated Nodes

Enterprise Nodes

Indexer Services

Network Prototyping Tools

Staking & Validators

AI Agent

RPC documentation entries

What is a TON RPC node and how do you use one?

Polkadot RPC: A Complete Guide to Endpoints, Methods, and Providers

Polygon RPC Providers & Nodes: Public, Managed & Dedicated

What is Stellar RPC and how do you use it?

Polkadot Asset Hub Migration: A Developer's Guide to the Relay Chain Transition

How to Use a Bittensor Explorer to Monitor the TAO Network

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

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 Providers for Mainnet, Devnet & Testnet

Never Worry about Infrastructure Again

Supported Networks

Product

Company

Resources

OnFinality RPC Assistant

RPC documentation entries

What is a TON RPC node and how do you use one?

Polkadot RPC: A Complete Guide to Endpoints, Methods, and Providers

Polygon RPC Providers & Nodes: Public, Managed & Dedicated

What is Stellar RPC and how do you use it?

Polkadot Asset Hub Migration: A Developer's Guide to the Relay Chain Transition

How to Use a Bittensor Explorer to Monitor the TAO Network

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

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 Providers for Mainnet, Devnet & Testnet

Never Worry about Infrastructure Again

Supported Networks

Product

Company

Resources