Etherscan Supported Target Chains Reference
<!-- Generated by scripts/generate-evm-atlas.ts. Registry metadata comes from crypto-registry data/chains.json; edit skills/evm-atlas/references/atlas-overlays.json for Atlas-only fields. -->Source: https://docs.etherscan.io/supported-chains Live list: https://api.etherscan.io/v2/chainlist (returns the
provider's authoritative chainid set)
Verified against the live chainlist endpoint on 2026-07-08 (64 provider chains). This file intentionally lists only
chains from references/generated/target-mainnets.json; provider-supported chains outside that list are out of scope
for this skill.
Target Mainnets (Free Tier Available)
| Chain | Chain ID | Notes |
|---|---|---|
| Abstract | 2741 |
|
| Arbitrum | 42161 |
|
| Berachain | 80094 |
|
| Blast | 81457 |
|
| Celo | 42220 |
|
| Ethereum | 1 |
Default chain |
| Fraxtal | 252 |
|
| Gnosis | 100 |
|
| HyperEVM | 999 |
|
| Linea | 59144 |
|
| Monad | 143 |
|
| Polygon | 137 |
|
| Sei | 1329 |
|
| Sonic | 146 |
|
| Taiko | 167000 |
|
| Unichain | 130 |
|
| World Chain | 480 |
|
| XDC | 50 |
Target Mainnets (Paid Plan Required)
The following target chains require a paid Etherscan plan for data endpoints (balances, transactions, logs, etc.).
Lite ($49/mo) is sufficient; module=contract endpoints (getsourcecode, getabi, etc.) work on every plan.
| Chain | Chain ID |
|---|---|
| Avalanche | 43114 |
| Base | 8453 |
| BNB Chain | 56 |
| Optimism | 10 |
Target Mainnets Not on Etherscan V2
Route these target chains to Blockscout when available, then to the primaryPublicRpc from
references/generated/target-mainnets.json if needed. Do not query Etherscan V2 for them.
| Chain | Chain ID | Notes |
|---|---|---|
| Arbitrum Nova | 42170 |
Not returned by the live chainlist; nova.arbiscan.io redirects to Blockscout |
| Chiliz | 88888 |
Not returned by the live chainlist |
| Core Dao | 1116 |
Not returned by the live chainlist |
| Fantom | 250 |
Not returned by the live chainlist |
| Filecoin | 314 |
Not returned by the live chainlist |
| IoTeX | 4689 |
Not returned by the live chainlist |
| Lightlink | 1890 |
Not returned by the live chainlist |
| Mode | 34443 |
Not returned by the live chainlist |
| Morph | 2818 |
Not returned by the live chainlist |
| Robinhood Chain | 4663 |
Not returned by the live chainlist |
| Ronin | 2020 |
Not returned by the live chainlist |
| Scroll | 534352 |
Removed from Etherscan V2 on 2026-04-16; api.scrollscan.com no longer resolves |
| Sophon | 50104 |
Not returned by the live chainlist |
| Superseed | 5330 |
Not returned by the live chainlist |
| ZKsync Era | 324 |
Not currently supported by Etherscan V2 |
| Zora | 7777777 |
Not returned by the live chainlist |
Testnets are outside this skill's target list. If the user asks about any non-target chain, ask them to file a feature request in https://github.com/PaulRBerg/agent-skills.