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feat(chains): add Mars Credit chain (chainId 110110)#4742

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lifeofjer:add-mars-credit
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feat(chains): add Mars Credit chain (chainId 110110)#4742
lifeofjer wants to merge 1 commit into
wevm:mainfrom
lifeofjer:add-mars-credit

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@lifeofjer

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Description

Adds Mars Credit (chainId 110110) to viem/chains.

Mars Credit is an Ethash-PoW, EVM-compatible L1 (go-ethereum v1.10.18 fork, London active from genesis, ~4.7M blocks, ~18 months uptime).

Checklist

  • Chain merged into ethereum-lists/chains
  • Unique Chain ID: 110110
  • Human-readable name: Mars Credit
  • Native currency: MARS (18 decimals)
  • Public RPC URL: https://rpc.marscredit.xyz (live, verified)
  • Block explorer: https://blockscan.marscredit.xyz (Blockscout, EIP-3091 compliant)
  • Changeset added (patch)
  • Exported alphabetically in src/chains/index.ts (between mapProtocol and matchain)

multicall3 is not deployed on Mars Credit yet, so it's intentionally omitted (the contributing guide marks it as a "nice to have").

Verification

  • RPC: curl -X POST https://rpc.marscredit.xyz -H 'Content-Type: application/json' -d '{"jsonrpc":"2.0","method":"eth_chainId","params":[],"id":1}'0x1ae9e (110110)
  • Explorer: https://blockscan.marscredit.xyz/block/0 resolves to genesis (EIP-3091)
  • ethereum-lists entry: eip155-110110.json

Additional context

A follow-up PR (ethereum-lists/chains#8446) is pending upstream to attach the Blockscout explorer and add the EIP-1559 / EIP-155 feature flags to the ethereum-lists entry; this viem PR uses the same explorer that PR references.

@changeset-bot

changeset-bot Bot commented Jun 18, 2026

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🦋 Changeset detected

Latest commit: 93f9825

The changes in this PR will be included in the next version bump.

This PR includes changesets to release 1 package
Name Type
viem Patch

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Click here if you're a maintainer who wants to add another changeset to this PR

@vercel

vercel Bot commented Jun 18, 2026

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@lifeofjer is attempting to deploy a commit to the Wevm Team on Vercel.

A member of the Team first needs to authorize it.

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