Latest updates
Product news, technical deep-dives, and announcements from the NodeFlare team.
Arc Mainnet RPC, From Day One
Circle's Arc L1 opened to the public today. NodeFlare serves it from its own node — Chain ID 5042, USDC-native gas, 500 ms blocks. Free public endpoint, no API key.
Read postDedicated Polygon RPC Node — Own Bare-Metal, Full eth_getLogs
Dedicated Polygon (POL) RPC on NodeFlare's own bare-metal. 3M CU/month free, no card. Full standard JSON-RPC. eth_getLogs and simulation included. No debug_* or trace_* on Polygon.
How to Add a Pre-Trade Token Safety Check to Your Trading Bot
One API call before every buy: detect honeypots, ownership risk, and proxy contracts before your trading agent executes a swap. Works on every EVM chain NodeFlare serves — including new ones Alchemy and QuickNode skip.
Dedicated Optimism RPC Node — Full Method Access on Your Own Bare-Metal
Run a dedicated Optimism RPC node with debug_traceTransaction and trace_* unlocked on NodeFlare's own bare-metal. 3M CU/mo free, or a private node with SLA. No shared pool.
Dedicated Avalanche RPC Node — Full Method Access on Our Own Bare-Metal
Run a dedicated Avalanche C-Chain RPC node with eth_getLogs, debug_* and trace_* unlocked on NodeFlare's own bare-metal. 3M CU/mo free, or a private node with SLA. No shared pool.
Token Safety API: Scam, Honeypot, and Rug-Risk Checks in One Call
Screen any ERC-20 for scams and honeypots in one API call: ownership, proxy risk, holder concentration, honeypot simulation. Works on every chain we serve, including young ones Alchemy and revoke.cash skip.
Dedicated Sonic RPC Node — Full Method Access on Our Own Bare-Metal
Run Sonic on a dedicated NodeFlare RPC node: bare-metal, not a shared pool, full debug_/trace_ access, no noisy-neighbour rate spikes. Free keyed endpoint or a private node with an SLA.
On-Chain Due Diligence for AI Trading Agents
Agentic trading is here — AI agents that place trades on their own. But the trade side doesn't check whether a token is a scam. NodeFlare's Onchain Answer Engine and token-safety API are the pre-trade due-diligence layer: ask 'is this a scam?' and get a cited verdict, over MCP or x402.
Free Sonic RPC Endpoint
Free Sonic RPC endpoint (Chain ID 146) — no API key required. aBFT instant finality, no reorgs, 1-second blocks, 3M compute units/month free. One of the few independent Sonic providers.
Free Mode Network RPC Endpoint
Free Mode RPC endpoint (Chain ID 34443) — no API key required. OP-Stack Superchain, SFS revenue sharing, 3M compute units/month free, multi-region failover.
Free XLayer RPC Endpoint
Free XLayer RPC endpoint (Chain ID 196, OKB gas) — no API key required. OKX's zkEVM, multi-region nodes, 3M compute units/month free. One of the few independent XLayer providers.
Pay-Per-Request RPC Is Live: x402 on All 23 Chains
NodeFlare now supports x402 — pay for RPC calls in USDC on Base with no account or API key. $0.001 per call, heavy methods included, listed in the x402 Bazaar for AI agents.
Free Zircuit RPC Endpoint
Free Zircuit RPC endpoint (Chain ID 48900) — no API key required. zk-rollup with sequencer-level security screening, multi-region failover, 3M compute units/month free.
Free BOB RPC Endpoint
Free BOB (Build on Bitcoin) RPC endpoint (Chain ID 60808) — no API key required. Served from two regions with automatic failover, 3M compute units/month free.
Free Ink RPC Endpoint
Connect to Ink mainnet, chain ID 57073, with NodeFlare. Try a public RPC request or use a free key with 3M CU/month. Includes curl and wallet setup examples.
Free Robinhood Chain RPC Endpoint
Free Robinhood Chain RPC endpoint — Chain ID 4663 (0x1237), no API key needed. Add to MetaMask in seconds. Works with Klik, DeFi, and RWA apps on Robinhood's Arbitrum Orbit L2.
Free Soneium RPC Endpoint
Free Soneium RPC endpoint (Chain ID 1868) — no API key required. Multi-region RPC for Sony's OP-Stack L2, 3M compute units/month free.
Free Unichain RPC Endpoint
Free Unichain RPC endpoint (Chain ID 130) — no API key required. 1-second blocks, multi-region failover, 3M compute units/month free. One of the few independent Unichain providers.
NodeFlare Now Serves 23 EVM Chains
We tripled our chain coverage in one release: 16 new EVM networks — including Unichain, Robinhood Chain, Sonic, Soneium, Sei and Plasma — all on our own bare-metal nodes, all with free public endpoints.
Free Arbitrum RPC Endpoint — No API Key Required
Get a free Arbitrum One RPC endpoint in seconds. NodeFlare provides multi-region Arbitrum nodes with eth_getLogs, trace_, and WebSocket support — 3M CU/mo free, no credit card.
Free Base RPC Endpoint
Free Base RPC endpoint (Chain ID 8453) — no API key. 3M compute units/month, eth_getLogs and WebSocket on the free tier. Multi-region nodes with automatic failover.
How to Add a Custom RPC Endpoint to MetaMask
Step-by-step guide to adding a custom RPC to MetaMask for Ethereum, Base, Arbitrum, Optimism, BNB Chain, HyperEVM, and Avalanche. Free NodeFlare endpoints included — no API key required.
Free Alchemy Alternative for 2026 — NodeFlare RPC
Looking for a free Alchemy or Infura alternative? NodeFlare gives developers 3,000,000 compute units/month free — no credit card. eth_getLogs, trace_, debug_ and WebSocket included on the free tier.
Free HyperLiquid RPC Endpoint — Connect to HyperEVM
Get a free HyperLiquid RPC endpoint for HyperEVM (Chain ID 999). No credit card. 3M compute units/month, eth_getLogs and WebSocket included on the free tier.
Best Free Ethereum RPC Endpoints in 2026
A developer's guide to the best free Ethereum RPC endpoints available in 2026 — comparing uptime, rate limits, supported methods, and geographic coverage.
Fairer Billing with Compute Units
Not all RPC calls are equal. eth_getLogs is 25× heavier than eth_blockNumber. We've switched to Compute Units so your quota reflects actual infrastructure cost.
17 Nodes, 5 Regions, WebSocket — NodeFlare Just Got Faster
We've expanded from 1 region to 5, added Avalanche, and launched WebSocket endpoints for all chains. Here's what changed.
Introducing NodeFlare: High-Performance EVM RPC for Builders
NodeFlare is a multi-chain RPC provider built for developers who need reliability, speed, and transparent pricing. Here's what we're launching with.
Build on multi-region RPC
Free to start — every chain, automatic failover, no credit card.
Get your free API key →