Question 1

Sepolia Beacon RPC: Endpoints, Methods, and How to Use Them

Accepted Answer

The Sepolia Beacon RPC exposes the consensus layer of the Sepolia testnet, letting you query validator, block, and finality data. This page covers the key endpoints, common methods, and how to choose a reliable provider for your testnet development.

Question 2

How to Choose a Kaia RPC Provider for Production Apps

Accepted Answer

Choosing a Kaia RPC provider means balancing reliability, latency, data access, and pricing against your app's traffic patterns. Public endpoints are fine for prototyping, but production apps often need a managed provider with higher rate limits, WebSocket support, and archive data. This guide walks through the key criteria and common pitfalls so you can pick infrastructure that won't break under load.

Question 3

What is the SORA Network and how do you connect to it?

Accepted Answer

The SORA Network is a decentralized blockchain platform focused on creating a sovereign economic system. It uses the XOR token and a token bonding curve to manage supply, and it supports democratic governance and cross-chain interoperability. Developers can build on SORA using its Substrate-based chain, with tools like Polkaswap for DeFi. To interact with the network, you need a reliable RPC endpoint for reading data and submitting transactions. This guide explains what SORA is, how to choose an RPC provider, and how to get started with development.

Question 4

Base RPC Providers: Public, Managed & Dedicated Options

Accepted Answer

Base RPC providers fall into three broad tiers: public endpoints, shared managed endpoints, and dedicated nodes. Public access, including OnFinality’s public Base endpoint, is convenient for experiments and smoke tests but is rate-limited shared infrastructure and not suitable for production. Shared managed access adds API-key enforcement, higher capacity, clearer request limits, and optional archive or Trace support, making it appropriate for many development, staging, and moderate production workloads. Dedicated Base nodes isolate your traffic, provide custom configuration, and offer stronger monitoring for high-volume or business-critical applications. Before choosing, confirm support for Base mainnet chain ID 8453 and Base Sepolia chain ID 84532, verify archive or Trace availability, check WebSocket transport, test latency from your deployment regions, and review current plan limits, pricing, and support tiers. The most useful comparison is workload fit: how consistently the endpoint behaves under your read, write, subscription, and historical-query patterns, and whether a clear upgrade path exists as demand grows.

Question 5

Fastest Solana RPC: How to Measure Latency & Endpoint Performance

Accepted Answer

Fastest Solana RPC is not a single endpoint; it depends on workload, region, and the methods you call. Latency comes from network round-trip time, server processing, and payload size. A provider with a nearby node and well-tuned hardware may show excellent p50 latency for light reads like `getSlot`, but p95 for heavy methods like `getProgramAccounts` can spike under load. To choose an endpoint, measure from your application's region, test the specific JSON-RPC methods your dApp uses, and track tail latency (p95, p99) rather than averages. Also evaluate WebSocket subscription stability and rate-limit behavior; throttling and retries add perceived delay. Public endpoints like `https://api.mainnet-beta.solana.com` are useful for development but have shared capacity and limits that can change. For production, a managed Solana RPC endpoint or dedicated node can provide more predictable latency. OnFinality offers Solana endpoints (verify current plan details on the [Solana network page](/networks/solana)), but always benchmark against your own workload before committing. A reproducible test suite that captures p50/p95, method-specific response times, WebSocket reconnects, and rate-limit headroom gives you the only reliable comparison.

Question 6

Avalanche API: What Should Developers Know About RPC, Data, and Node Access?

Accepted Answer

The Avalanche API is the set of interfaces developers use to read and write data on Avalanche's primary network and its Layer 1s. It includes JSON-RPC methods for the C-Chain, P-Chain, and X-Chain, plus higher-level data APIs for balances, transactions, and token metadata. Choosing the right API access depends on your workload: simple dApp calls can use public RPC endpoints, while production apps often need dedicated or managed infrastructure for reliability and rate limits.

Question 7

Best Solana APIs for Validators: Monitoring, Data & Operations

Accepted Answer

Best Solana APIs for validators are rarely one product. Validator operators need a small set of purpose-built interfaces: monitoring APIs that expose vote-account and skip-rate telemetry, analytics APIs for epoch-level performance and rewards, RPC endpoints for transaction submission and chain state, and reporting APIs for historical or exported data. The right combination depends on whether you run one validator or a fleet, and whether you need live alerting, historical reporting, or both. Start by mapping the operational jobs—slot health, vote distance, leader slots, stake account changes, reward accrual—to the API categories that actually cover them. Then compare providers on data freshness, authentication, retention windows, and failover behavior. Do not assume that a generic Solana RPC provider or a public endpoint will give you the vote-account and epoch-level detail a validator needs. For production validator operations, a dedicated or reliable shared RPC layer plus a monitoring/data API is often a more practical baseline than a single 'best' API.

Question 8

How do pay-as-you-go blockchain nodes work, and when should you use them?

Accepted Answer

Pay-as-you-go blockchain nodes are managed RPC endpoints billed by actual usage instead of a fixed monthly subscription. This model suits teams with uneven traffic, multi-chain experiments, or early-stage products because it keeps infrastructure costs aligned with demand.

Before adopting a usage-based plan, compare rate limits, overage pricing, WebSocket support, and archive data access against your projected workload. Use real traffic samples to estimate spend, and plan a path to dedicated nodes if usage becomes predictable and sustained.

Question 9

What is a MATIC RPC node and how do you connect to Polygon Mainnet?

Accepted Answer

A MATIC RPC node is a Polygon PoS endpoint exposed through JSON-RPC for reading chain state and broadcasting transactions. This reference covers Polygon Mainnet and Amoy chain settings, how to test endpoints with curl, and how to compare public RPCs against managed providers and dedicated nodes.

Use the checklist and chain IDs here to avoid the most common Polygon RPC mistakes, then decide when you need predictable throughput, WebSocket support, or archive methods for production workloads.

Question 10

What Is Manta Atlantic and How Do You Connect to It?

Accepted Answer

Manta Atlantic is a zero-knowledge Layer 1 parachain on Polkadot focused on compliance identities and zkNFTs. Its Polkadot slot expires in August 2026, and Manta is directing users and assets to Manta Pacific, an EVM Layer 2 on Ethereum.

If you're a developer or infrastructure operator, you need to know how to reach Manta Atlantic RPC endpoints, which chain settings to use, and how to plan for the sunset. This reference page covers those essentials in a practical way.

Question 11

What is the Abstract chain RPC endpoint and how do I connect to it?

Accepted Answer

Abstract is an EVM-compatible zero-knowledge rollup built on zkSync's ZK Stack for consumer applications. The mainnet HTTP RPC endpoint is https://api.mainnet.abs.xyz with chain ID 2741, and the WebSocket endpoint is wss://api.mainnet.abs.xyz/ws. The testnet uses chain ID 11124 and https://api.testnet.abs.xyz, with a Sepolia-based explorer at sepolia.abscan.org.

Public endpoints are fine for testing and light wallet use, but production dApps should evaluate throughput, archive data, WebSocket stability, and failover behavior. OnFinality provides managed Abstract RPC access and dedicated node options through its API service, so teams can move from a public endpoint to infrastructure with predictable capacity.

Question 12

What is a TON endpoint and how do I choose one?

Accepted Answer

TON endpoints are HTTP and JSON-RPC bridge endpoints that let off-chain applications read blockchain data, query smart contracts, and submit transactions on The Open Network (TON). Because TON nodes speak ADNL rather than HTTP, an endpoint such as TON Center's API or a hosted RPC provider is the standard way for wallets, bots, and backends to talk to the network.

Choosing the right TON endpoint means checking whether you need mainnet or testnet access, deciding between TON Center API v2 (liteserver-backed) and v3 (indexed), verifying rate limits, and testing the endpoint before production. This guide covers endpoint options, sample requests, and a decision checklist for developers.

API Service

Dedicated Nodes

Enterprise Nodes

Indexer Services

Network Prototyping Tools

Staking & Validators

AI Agent

RPC documentation entries

Sepolia Beacon RPC: Endpoints, Methods, and How to Use Them

How to Choose a Kaia RPC Provider for Production Apps

What is the SORA Network and how do you connect to it?

Base RPC Providers: Public, Managed & Dedicated Options

Fastest Solana RPC: How to Measure Latency & Endpoint Performance

Avalanche API: What Should Developers Know About RPC, Data, and Node Access?

Best Solana APIs for Validators: Monitoring, Data & Operations

How do pay-as-you-go blockchain nodes work, and when should you use them?

What is a MATIC RPC node and how do you connect to Polygon Mainnet?

What Is Manta Atlantic and How Do You Connect to It?

What is the Abstract chain RPC endpoint and how do I connect to it?

What is a TON endpoint and how do I choose one?

Never Worry about Infrastructure Again

Supported Networks

Product

Company

Resources

OnFinality RPC Assistant

RPC documentation entries

Sepolia Beacon RPC: Endpoints, Methods, and How to Use Them

How to Choose a Kaia RPC Provider for Production Apps

What is the SORA Network and how do you connect to it?

Base RPC Providers: Public, Managed & Dedicated Options

Fastest Solana RPC: How to Measure Latency & Endpoint Performance

Avalanche API: What Should Developers Know About RPC, Data, and Node Access?

Best Solana APIs for Validators: Monitoring, Data & Operations

How do pay-as-you-go blockchain nodes work, and when should you use them?

What is a MATIC RPC node and how do you connect to Polygon Mainnet?

What Is Manta Atlantic and How Do You Connect to It?

What is the Abstract chain RPC endpoint and how do I connect to it?

What is a TON endpoint and how do I choose one?

Never Worry about Infrastructure Again

Supported Networks

Product

Company

Resources