Question 1

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 2

What to Look for in a Dedicated Node as a Service Provider

Accepted Answer

Dedicated nodes as a service (DNaaS) provide exclusive, managed blockchain infrastructure for a single project, eliminating resource contention and offering full control over node configuration. When evaluating providers, focus on supported chains, performance guarantees, customization options, and operational support to ensure your Web3 application gets the reliability it needs without the overhead of self-hosting.

Question 3

BNB Testnet RPC: Endpoint, Chain ID, Faucet & Wallet Setup

Accepted Answer

BNB Smart Chain Testnet (BSC Testnet) uses chain ID 97 (0x61) and tBNB as gas. For light testing, you can use the official public endpoint https://bsc-testnet-dataseed.bnbchain.org (and other official dataseed endpoints), but those are rate-limited to 10,000 requests per 5 minutes and may disable eth_getLogs. OnFinality provides a public BNB testnet RPC at https://bnb-testnet.api.onfinality.io/public with EVM-compatible HTTPS and WebSocket support, archive data, and trace/API access for developers who need more consistent test infrastructure. To start, request tBNB from the BNB faucet, add the network to MetaMask with the correct settings, and verify connectivity with eth_chainId or eth_blockNumber. Keep the testnet endpoint separate from mainnet (chain ID 56 / 0x38). If you encounter 429 rate-limit errors or wrong-network rejections, switch to a private endpoint or recheck the chain ID. For contract deployment and CI/CD workflows, refer to the BNB Smart Chain Testnet Developer Guide.

Question 4

Blockchain Node as a Service: Key Criteria for Choosing a Provider

Accepted Answer

Blockchain node as a service (also called node-as-a-service or NaaS) lets developers access blockchain nodes without running, syncing, or maintaining their own infrastructure. Instead, a provider manages the hardware, node software, and networking, exposing API endpoints for your dApp to interact with the blockchain. This article outlines the key criteria you should evaluate when selecting a provider — from network coverage and node types to pricing and support — so you can make an informed decision for your Web3 project.

Question 5

Best Crypto Bridge API: What Should Developers Evaluate Before Integrating?

Accepted Answer

A crypto bridge API provides a programmatic interface for moving assets or data across blockchains. While many services offer bridge APIs, their performance and reliability depend heavily on the underlying RPC infrastructure. This article outlines the key criteria developers should consider when choosing a bridge API, with a focus on how RPC endpoint quality impacts bridge operations. We'll also discuss how OnFinality's RPC services can support bridge infrastructure needs.

Question 6

Dedicated vs Shared Node Access: A Practical Comparison for Web3 Developers

Accepted Answer

Dedicated node access gives you an exclusive blockchain node with guaranteed resources and clear rate limits. Shared node access pools multiple users onto the same node, offering lower cost but potential performance contention. This comparison covers tradeoffs in latency, reliability, cost, and scalability to help you choose the right setup for your dApp or validator infrastructure.

Question 7

Dedicated vs Shared Nodes: Performance Insights for Developers

Accepted Answer

Choosing between dedicated and shared RPC nodes impacts latency, rate limits, and reliability. Dedicated nodes provide exclusive resources, predictable performance, and full customization, while shared nodes offer cost efficiency with burst limits. This article breaks down the performance tradeoffs—throughput, response time, connection limits, and failure modes—to help you decide based on your application's needs.

Question 8

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 9

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 10

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 11

Dedicated vs Shared Node Access: A Detailed Comparison for Developers

Accepted Answer

When choosing an RPC provider, developers must decide between shared and dedicated node access. Shared nodes offer cost efficiency and quick setup, while dedicated nodes provide predictable performance, isolation, and access to advanced methods like debug or trace. This article breaks down the trade-offs across cost, performance, reliability, and scalability to help you choose the right model for your Web3 application.

Question 12

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.

API Service

Dedicated Nodes

Enterprise Nodes

Indexer Services

Network Prototyping Tools

Staking & Validators

AI Agent

RPC documentation entries

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

What to Look for in a Dedicated Node as a Service Provider

BNB Testnet RPC: Endpoint, Chain ID, Faucet & Wallet Setup

Blockchain Node as a Service: Key Criteria for Choosing a Provider

Best Crypto Bridge API: What Should Developers Evaluate Before Integrating?

Dedicated vs Shared Node Access: A Practical Comparison for Web3 Developers

Dedicated vs Shared Nodes: Performance Insights for Developers

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

Dedicated vs Shared Node Access: A Detailed Comparison for Developers

Solana Public RPC Endpoints

Never Worry about Infrastructure Again

Supported Networks

Product

Company

Resources

OnFinality RPC Assistant

RPC documentation entries

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

What to Look for in a Dedicated Node as a Service Provider

BNB Testnet RPC: Endpoint, Chain ID, Faucet & Wallet Setup

Blockchain Node as a Service: Key Criteria for Choosing a Provider

Best Crypto Bridge API: What Should Developers Evaluate Before Integrating?

Dedicated vs Shared Node Access: A Practical Comparison for Web3 Developers

Dedicated vs Shared Nodes: Performance Insights for Developers

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

Dedicated vs Shared Node Access: A Detailed Comparison for Developers

Solana Public RPC Endpoints

Never Worry about Infrastructure Again

Supported Networks

Product

Company

Resources