Question 1

TON API: How to Choose and Use Endpoints for Mainnet and Testnet

Accepted Answer

TON API services provide HTTP and WebSocket access to the TON blockchain. Developers can choose between public endpoints, hosted APIs like TON Center and TonAPI, or dedicated node infrastructure from providers like OnFinality. This article compares available options, lists endpoint settings, and covers common setup and debugging steps.

Question 2

Fantom API: Methods, Endpoints, and How to Start Building

Accepted Answer

The Fantom API provides JSON-RPC methods for interacting with the Fantom Opera blockchain, covering balances, transactions, event logs, gas estimation, and debugging. This reference covers public endpoints, supported methods, and how to connect reliably for production dApps.

Question 3

What is the Aleph Zero RPC endpoint and how do you connect?

Accepted Answer

Aleph Zero is a Layer 1 blockchain focusing on privacy and scalability using a novel consensus mechanism. Its RPC endpoint allows developers to interact with the chain via JSON-RPC calls. This page covers chain settings, available endpoints, common JSON-RPC methods, and how to choose a reliable RPC provider for production workloads.

Question 4

What is an Abstract RPC and how do I start using it?

Accepted Answer

Abstract is an Ethereum Layer 2 chain that uses zero-knowledge proofs. To connect, you need an Abstract RPC endpoint, chain ID, and the native token address. This guide covers mainnet and testnet settings, faucet URLs, and common debugging tips. Use a reliable RPC provider to ensure low-latency access to Abstract's infrastructure.

Question 5

Solana RPC Access: Authentication, Rate Limits & Common Errors

Accepted Answer

Solana RPC access uses JSON-RPC over HTTP and WebSocket. Public endpoints such as https://api.mainnet-beta.solana.com require no key but enforce changing rate limits and are intended for devnet/testnet work or low-volume testing. Production workloads should use an authenticated managed endpoint from OnFinality or another provider; you supply an API key as a header or query parameter. If the key is missing, expired, or lacks plan entitlements, requests return 401 Unauthorized or 403 Forbidden. Exceeding your plan or public limit returns 429 Too Many Requests; implement client-side throttling and exponential backoff with jitter instead of retrying immediately. Timeouts can come from node congestion or network path issues, so use bounded timeouts and one or more fallback endpoints with a circuit breaker. Stale data occurs when reads come from a lagging node or cached response; enforce a minimum confirmed commitment and check recent blockhash freshness before signing. Before moving traffic, verify the current Solana endpoints, plan limits, WebSocket support, and fallback configuration on the Solana network page. Collect request IDs, timestamps, endpoint URLs, and response bodies before contacting support.

Question 6

Solana Public RPC Endpoints

Accepted Answer

Solana public RPC endpoints are free, shared JSON-RPC gateways that let developers read network state, send transactions, and subscribe to updates without running their own node. The mainnet endpoint is `https://api.mainnet-beta.solana.com`; Devnet uses `https://api.devnet.solana.com`. They require no API key and support standard Solana RPC methods, which makes them convenient for prototyping, development, and low-volume testing. Public endpoints are shared across all users, so the operator enforces rate limits and can change them without notice. They do not provide archive data by default, WebSocket capacity is shared, and there is no uptime guarantee. That makes them unsuitable for production dApps with real users or high request volumes. For development, use Devnet and test SOL from the official faucet. For production, a managed Solana RPC service or dedicated node provides predictable capacity, HTTP/WebSocket access, archive support, and a support path. Before choosing, estimate request volume, required RPC methods, and latency expectations. Always check the current Solana cluster documentation before relying on a public endpoint.

Question 7

Abstract RPC Endpoint: What You Need to Connect to Abstract

Accepted Answer

Abstract is an Ethereum Layer 2 network built with zkSync technology. To connect your dApp or wallet to Abstract, you need an RPC endpoint address. This article provides the official Abstract RPC endpoints for mainnet and testnet, chain IDs, and developer resources like faucets and explorers. We also discuss how to evaluate RPC providers for reliability and performance on Abstract.

Question 8

What is Bittensor RPC and how do you connect to it?

Accepted Answer

Bittensor RPC enables developers to interact with Bittensor's decentralized AI network via Substrate (subtensor) and EVM APIs. This reference covers mainnet and testnet endpoints, chain settings, code examples, and criteria for choosing an RPC provider for your dApp or AI agent.

Question 9

How to Connect to Pichiu Network RPC for Oracle Data

Accepted Answer

Pichiu Network provides decentralized oracle services on Kusama. This article explains how developers can integrate with Pichiu using RPC endpoints, configure chain settings, and debug common connection issues. Whether you are building DeFi, gaming, or NFT applications, Pichiu's oracle infrastructure offers verifiable off-chain data. We cover endpoint selection, WebSocket setup, and provider considerations for production workloads.

Question 10

How do I connect to Optimism RPC and what should I consider when choosing an endpoint?

Accepted Answer

Optimism RPC endpoints allow applications to read and write data on OP Mainnet and OP Sepolia. This article covers network settings, JSON-RPC methods, node requirements, and criteria for selecting a reliable RPC provider for production use.

Question 11

What Is Stellar RPC and How to Use It for Your dApp?

Accepted Answer

Stellar RPC refers to the remote procedure call interface that allows applications to interact with the Stellar blockchain. Unlike Ethereum, Stellar uses a different API called Horizon, which provides RESTful endpoints for querying the ledger, submitting transactions, and managing accounts. For developers, finding a reliable Stellar RPC provider is key to building production dApps without running full nodes. OnFinality offers Stellar RPC endpoints that abstract infrastructure complexity, giving you scalable access to the Stellar network.

When choosing a Stellar RPC provider, consider factors like rate limits, uptime, and support for Horizon-specific features like streaming endpoints. OnFinality provides both shared and dedicated Stellar nodes, with transparent pricing and multi-region availability, making it a strong choice for developers scaling their Stellar projects.

Question 12

Peaq RPC Endpoint: Chain Settings, Faucet, and Debugging

Accepted Answer

Find the official Peaq RPC endpoint, chain ID, native currency, and step-by-step setup for EVM-compatible wallets. Learn how to use the Peaq faucet, configure your development environment, and debug common RPC issues. Whether you're building a DePIN dApp or integrating machine economy assets, this guide covers everything you need to connect reliably.

API Service

Dedicated Nodes

Enterprise Nodes

Indexer Services

Network Prototyping Tools

Staking & Validators

AI Agent

RPC documentation entries

TON API: How to Choose and Use Endpoints for Mainnet and Testnet

Fantom API: Methods, Endpoints, and How to Start Building

What is the Aleph Zero RPC endpoint and how do you connect?

What is an Abstract RPC and how do I start using it?

Solana RPC Access: Authentication, Rate Limits & Common Errors

Solana Public RPC Endpoints

Abstract RPC Endpoint: What You Need to Connect to Abstract

What is Bittensor RPC and how do you connect to it?

How to Connect to Pichiu Network RPC for Oracle Data

How do I connect to Optimism RPC and what should I consider when choosing an endpoint?

What Is Stellar RPC and How to Use It for Your dApp?

Peaq RPC Endpoint: Chain Settings, Faucet, and Debugging

Never Worry about Infrastructure Again

Supported Networks

Product

Company

Resources

Network RPC RPC Assistant

RPC documentation entries

TON API: How to Choose and Use Endpoints for Mainnet and Testnet

Fantom API: Methods, Endpoints, and How to Start Building

What is the Aleph Zero RPC endpoint and how do you connect?

What is an Abstract RPC and how do I start using it?

Solana RPC Access: Authentication, Rate Limits & Common Errors

Solana Public RPC Endpoints

Abstract RPC Endpoint: What You Need to Connect to Abstract

What is Bittensor RPC and how do you connect to it?

How to Connect to Pichiu Network RPC for Oracle Data

How do I connect to Optimism RPC and what should I consider when choosing an endpoint?

What Is Stellar RPC and How to Use It for Your dApp?

Peaq RPC Endpoint: Chain Settings, Faucet, and Debugging

Never Worry about Infrastructure Again

Supported Networks

Product

Company

Resources