guide10 min read
Boba Mainnet RPC for Wallet Builders
Boba Network RPC checks for wallets: chain ID 288 / 0x120, ETH gas near 0.001 gwei, safe and finalized lag, and 7 public endpoints that passed 8 probes.
Oct 16, 2026Read more →
RPC Directory Blog
Guides, tutorials, and insights to help you navigate the world of blockchain RPC endpoints, compare providers, and build better Web3 applications.
guide10 min read
Taiko Mainnet RPC for Wallet Builders
Taiko RPC checks for wallets: chain ID 167000 / 0x28c58, ETH gas at 0.01 gwei, Hekla vs Hoodi testnet IDs, and 9 public endpoints that passed 8 probes.
Oct 15, 2026Read more →
guide9 min read
Chiliz Mainnet RPC for Wallet Builders
Chiliz RPC checks for wallets: chain ID 88888 / 0x15b38, CHZ gas at 2,500 gwei, Spicy testnet mix-ups, and 4 public endpoints that passed 8 probes.
Oct 14, 2026Read more →
guide10 min read
Soneium Mainnet RPC for Wallet Builders
Soneium RPC checks for wallets: chain ID 1868 / 0x74c, ETH gas on an OP Stack L2, 2 s blocks, and the public endpoints that passed 8 probes.
Oct 13, 2026Read more →
guide13 min read
Monad Mainnet RPC for Wallet Builders
Monad RPC checks for wallets: chain ID 143 / 0x8f, MON gas charged on the gas limit, 0.3 s blocks, and the public endpoints that passed 8 probes.
Oct 12, 2026Read more →
guide10 min read
Metis Andromeda Mainnet RPC for Wallet Builders
Metis Andromeda RPC checks for wallets: chain ID 1088 / 0x440, METIS gas, legacy gasPrice, safe vs finalized tags, public endpoints that passed 8 probes.
Oct 9, 2026Read more →
guide10 min read
Rootstock Mainnet RPC for Wallet Builders
Rootstock mainnet RPC checks for wallets: chain ID 30 / 0x1e, RBTC gas, EIP-1191 checksums, confirmation counts, and public endpoints that passed 8 probes.
Oct 8, 2026Read more →
guide10 min read
Sonic Mainnet RPC for Wallet Builders
What to check before a wallet points at Sonic mainnet: chain ID 146 / 0x92, S gas, sub-second finality, Fantom Opera legacy confusion, public endpoints that passed an 8-round probe, and public vs dedicated RPC.
Oct 7, 2026Read more →
guide11 min read
Unichain Mainnet RPC for Wallet Builders
What to check before a wallet points at Unichain mainnet: chain ID 130 / 0x82, ETH gas, 1-second blocks, Flashblocks and the pending tag, OP Stack safe and finalized tags, public endpoints that passed an 8-round probe, and public vs dedicated RPC.
Oct 6, 2026Read more →
guide9 min read
Why Public RPC Endpoints Go Dead, and How to Health-Check One
What five days of re-probing listed public RPC endpoints found: DNS gone, keys now required, origins down, rate limits, and a node stuck at genesis. Plus an eth_chainId, head freshness, retry, 429, and fallback recipe to run before you hardcode a URL.
Oct 5, 2026Read more →
guide13 min read
Celo Mainnet RPC for Wallet Builders
What to check before a wallet points at Celo mainnet: chain ID 42220 / 0xa4ec, CELO gas and token duality, CIP-64 fee currencies and which wallets honor them, the 200 gwei minimum base fee, OP Stack safe and finalized tags, the 7-day withdrawal, verified public endpoints, and public vs dedicated RPC.
Oct 2, 2026Read more →
guide12 min read
Gnosis Mainnet RPC for Wallet Builders
What to check before a wallet points at Gnosis mainnet: chain ID 100 / 0x64, xDAI as the gas token, wei-level EIP-1559 fees, safe and finalized tags, the xDAI bridge claim step, Chiado testnet, verified public endpoints, and public vs dedicated RPC.
Oct 1, 2026Read more →
guide11 min read
Mantle Mainnet RPC for Wallet Builders
What to check before a wallet points at Mantle mainnet: chain ID 5000 / 0x1388, MNT as the gas token, the post-Arsia fee split and eth_estimateTotalFee, OP Stack safe and finalized tags, verified public endpoints, and public vs dedicated RPC.
Sep 30, 2026Read more →
guide10 min read
Sei Mainnet RPC for Wallet Builders
What to check before a wallet points at Sei mainnet: EVM chain ID 1329 / 0x531 vs Cosmos pacific-1, SEI gas, instant finality tags, verified public endpoints, and public vs dedicated RPC.
Sep 29, 2026Read more →
guide9 min read
Blast Mainnet RPC for Wallet Builders
What to check before a wallet points at Blast mainnet: chain ID 81457 / 0x13e31, OP Stack safe and finalized tags, rebasing ETH balances, Blast Sepolia and name-collision mix-ups, and public vs dedicated endpoints.
Sep 28, 2026Read more →
guide10 min read
zkSync Era Mainnet RPC for Wallet Builders
What to check before a wallet points at zkSync Era mainnet: chain ID 324 / 0x144, EraVM vs Ethereum and OP Stack, native account abstraction, EIP-712 0x71 transactions, pubdata gas, and public vs dedicated endpoints.
Sep 25, 2026Read more →
guide7 min read
Scroll Mainnet RPC for Wallet Builders
What to check before a wallet points at Scroll mainnet: chain ID 534352 / 0x82750, Scroll zkEVM vs Ethereum L1 and OP Stack, Scroll Sepolia mix-ups, and public vs dedicated endpoints.
Sep 24, 2026Read more →
guide6 min read
Linea Mainnet RPC for Wallet Builders
What to check before a wallet points at Linea mainnet: chain ID 59144 / 0xe708, Consensys zkEVM vs Ethereum L1, Linea Sepolia mix-ups, and public vs dedicated endpoints.
Sep 23, 2026Read more →
guide6 min read
Ethereum Mainnet RPC for Wallet Builders
What to check before a wallet points at Ethereum mainnet: chain ID 1 / 0x1, Sepolia and Hoodi mix-ups, L2 RPC paste mistakes, and public vs dedicated endpoints.
Sep 22, 2026Read more →
guide7 min read
Base Mainnet RPC for Wallet Builders
What to check before a wallet points at Base mainnet: chain ID 8453 / 0x2105, OP Stack vs Ethereum L1, Flashblocks vs finality, and public vs dedicated endpoints.
Sep 21, 2026Read more →
guide10 min read
Arbitrum Mainnet RPC: What to Check Before You Send Traffic
Before you point production traffic at an Arbitrum One mainnet RPC, check chain ID 42161, Nitro soft confirmations vs safe/finalized, and public vs dedicated endpoints.
Sep 20, 2026Read more →
guide8 min read
Avalanche C-Chain RPC for Builders: Gas and API Traps vs Ethereum
What breaks when you treat Avalanche C-Chain like Ethereum: chain ID 43114 vs net_version 1, AVAX gas, Coreth fee methods, accepted finality, and /ext/bc/C/rpc.
Sep 20, 2026Read more →
guide9 min read
eth_getLogs Range Limits Across Listed EVM Hubs
Starting block-range chunk sizes for eth_getLogs on Ethereum, Base, Arbitrum, Optimism, Polygon, BNB, Avalanche, and other EVM hubs this directory lists. Same filter, different provider errors.
Sep 20, 2026Read more →
guide8 min read
Optimism / OP Stack Mainnet RPC for L2 Teams
Sequencer vs public RPC on Optimism mainnet, what safe and finalized mean on OP Stack, and what to probe before L2 production traffic.
Sep 20, 2026Read more →
guide7 min read
Polygon Mainnet RPC for Wallet Builders
What to check before a wallet points at Polygon mainnet: chain ID 137 / 0x89, POL vs MATIC, PoS vs zkEVM mix-ups, and public vs dedicated endpoints.
Sep 20, 2026Read more →
guide6 min read
opBNB Mainnet RPC for Wallet Builders
opBNB mainnet RPC for wallets: chain ID 204 / 0xcc, OP Stack L2 vs the BSC parent, public vs dedicated endpoints, and wallet-add fields that go wrong.
Sep 11, 2026Read more →
guide6 min read
Tron Mainnet RPC for Wallet and Payments Builders
Tron mainnet RPC for wallets and payments: JSON-RPC vs the HTTP API, chain ID 728126428, address formats, and public vs dedicated endpoints.
Sep 10, 2026Read more →
guide7 min read
BNB Smart Chain RPC Checklist Before Production Traffic
BNB Smart Chain RPC checklist before production: confirm chain ID 56, full vs archive state, WebSocket uptime, and what safe and finalized return.
Sep 9, 2026Read more →
guide11 min read
Base Flashblocks Across RPC Providers: Pending vs Confirmed
Flashblocks method matrix for Base providers this directory lists. Pending vs latest, WebSocket subscriptions, and per-call cost from repo data.
Aug 26, 2026Read more →
guide13 min read
eth_getLogs Caps Across Ethereum, L2s, and Providers
Block range, address/topic, and timeout limits for eth_getLogs on Ethereum, Base, Arbitrum, and other EVM chains this directory lists. How to chunk queries.
Aug 25, 2026Read more →
tutorial8 min read
Add a Custom RPC to MetaMask: Extension and Mobile Steps
Add any EVM chain to MetaMask with a custom RPC: current extension and mobile steps, Chainlist, wallet_addEthereumChain, chain IDs, and common fixes.
Jan 15, 2025Read more →
tutorial5 min read
How to Add Custom RPC Networks to Rabby
Add any EVM-compatible blockchain to Rabby using custom RPC endpoints. Step-by-step guide with chain IDs, network configuration, and troubleshooting.
Jan 15, 2025Read more →
tutorial4 min read
How to Add Custom RPC Networks to Rainbow
Add any EVM-compatible blockchain to Rainbow using custom RPC endpoints. Step-by-step guide with chain IDs, network configuration, and troubleshooting.
Jan 15, 2025Read more →
tutorial4 min read
How to Add Custom RPC Networks to Phantom
Add any EVM-compatible blockchain to Phantom using custom RPC endpoints. Step-by-step guide with chain IDs, network configuration, and troubleshooting.
Jan 15, 2025Read more →
tutorial4 min read
How to Add Custom RPC Networks to Bifrost
Add any EVM-compatible blockchain to Bifrost using custom RPC endpoints. Step-by-step guide with chain IDs, network configuration, and troubleshooting.
Jan 15, 2025Read more →
tutorial5 min read
How to Add Custom RPC Networks to Talisman
Add any EVM-compatible blockchain to Talisman using custom RPC endpoints. Step-by-step guide with chain IDs, network configuration, and troubleshooting.
Jan 15, 2025Read more →
guide6 min read
Public vs Paid RPC Providers: When to Upgrade
Compare free public RPC endpoints with paid providers. Understand rate limits, SLAs, archive access, and the pricing models (flat-rate vs compute units) that affect total cost of ownership.
Jan 10, 2025Read more →