Question 1

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 2

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 3

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 4

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 5

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 6

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.

Question 7

What is Kusama Asset Hub and How Do You Connect to It?

Accepted Answer

# What is Kusama Asset Hub and How Do You Connect to It? Kusama Asset Hub (formerly Statemine) is a common-good parachain on the Kusama network that enables the issuance and transfer of fungible and non-fungible assets. It also serves as a low-cost chain for holding and transferring KSM tokens. After recent runtime upgrades, Asset Hub now supports smart contracts and hosts features previously on the Relay Chain, making it the primary network for everyday activity on Kusama. Developers building on Asset Hub need reliable RPC endpoints to interact with the chain, query asset balances, submit transactions, and deploy contracts. This guide covers what Asset Hub is, how to use it, and how to connect via RPC endpoints.

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

Question 8

What should I know about the xx network?

Accepted Answer

# What should I know about the xx network? The xx network is a quantum-resistant layer 1 blockchain integrated with a decentralized mixnet (cMix) for private communications. Founded by cryptography pioneer David Chaum, it uses Nominated Proof-of-Stake (NPoS) consensus and offers low-fee, scalable infrastructure for dApps and messaging. For developers, reliable RPC endpoints and dedicated nodes are essential to interact with the network. OnFinality provides xx network RPC API and dedicated node services to support production applications.

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

Question 9

Peaq RPC: How to Connect to the DePIN Layer 1

Accepted Answer

# Peaq RPC: How to Connect to the DePIN Layer 1 Peaq is a Layer 1 blockchain built on Substrate, operating as a Polkadot parachain, designed for Decentralized Physical Infrastructure Networks (DePIN) and the Machine Economy. It offers dual execution environments—EVM-compatible smart contracts and Substrate pallets—enabling developers to build applications for mobility, energy, and autonomous machines. To interact with Peaq, you need a reliable RPC endpoint. This guide covers Peaq RPC endpoints, how to connect, and best practices 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/peaq after using this checklist so you can test the endpoint against your real methods.

Question 10

How should developers evaluate RPC endpoints across Sepolia, Polygon, Solana Devnet, Base Sepolia, and peaq?

Accepted Answer

Choosing the right RPC endpoint is critical for dApp performance and reliability. This guide walks through key evaluation criteria—rate limits, chain IDs, testnet reliability, and when to upgrade to managed or dedicated infrastructure—across five popular networks: Ethereum Sepolia, Polygon, Solana Devnet, Base Sepolia, and peaq. Whether you're prototyping on a testnet or scaling on mainnet, understanding these factors helps you avoid bottlenecks and ensure smooth development.

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

Question 11

What should I know about Optimism RPC endpoints?

Accepted Answer

# What should I know about Optimism RPC endpoints? Optimism RPC endpoints matter 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 Optimism 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 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/optimism after using this checklist so you can test the endpoint against your real methods.

Question 12

What should I know about Arbitrum RPC endpoints?

Accepted Answer

# What should I know about Arbitrum RPC endpoints? Arbitrum RPC endpoints matter 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 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 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/arbitrum 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

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

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

Gnosis RPC: Endpoints, Providers, and Best Practices

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

What is Kusama Asset Hub and How Do You Connect to It?

What should I know about the xx network?

Peaq RPC: How to Connect to the DePIN Layer 1

How should developers evaluate RPC endpoints across Sepolia, Polygon, Solana Devnet, Base Sepolia, and peaq?

What should I know about Optimism RPC endpoints?

What should I know about Arbitrum RPC endpoints?

Never Worry about Infrastructure Again

Supported Networks

Product

Company

Resources

Network RPC RPC Assistant

RPC documentation entries

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

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

Gnosis RPC: Endpoints, Providers, and Best Practices

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

What is Kusama Asset Hub and How Do You Connect to It?

What should I know about the xx network?

Peaq RPC: How to Connect to the DePIN Layer 1

How should developers evaluate RPC endpoints across Sepolia, Polygon, Solana Devnet, Base Sepolia, and peaq?

What should I know about Optimism RPC endpoints?

What should I know about Arbitrum RPC endpoints?

Never Worry about Infrastructure Again

Supported Networks

Product

Company

Resources