Block explorer

Arbiscan

Block explorer for Arbitrum One built by the Etherscan team, sharing Etherscan's multichain API plans.

Visit website ↗Arbiscan alternatives

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Facts checked Sep 26, 2026

Arbiscan key facts

CategoryBlock explorer
ChainsArbitrum One
PlatformsWeb, API
CompanyEtherscan
ChainsArbitrum One, Arbitrum Sepolia
PricingLite $49/mo, Standard $199/mo, Advanced $299/mo, Professional $399/mo, Pro Plus $899/mo
Free plan3 calls/sec, up to 100,000 calls/day, attribution required
US availabilityAvailable: terms name no country restrictions
Official site ↗
About

What is Arbiscan?

Arbiscan is a block explorer and analytics site for Arbitrum One, built by Team Etherscan. It shows L1 to L2 and L2 to L1 transactions and batches, and its API is the Etherscan multichain API, free at 3 calls per second with paid plans from $49 a month.

How Arbiscan works

Arbiscan indexes Arbitrum One and Arbitrum Sepolia and shows blocks, transactions, token transfers and verified contracts.

It also covers views specific to a rollup. The Batches page lists each transaction batch the sequencer posts to Ethereum, with its L1 status and L1 block, and separate lists show L1 to L2 and L2 to L1 transactions. You can verify a contract through the web form, which accepts Solidity single-file, multi-part and Standard-JSON input as well as Vyper, or through the API. A verification request returns a GUID, and you poll that GUID until the result comes back.

How to start with Arbiscan

  1. Browsing does not require an account.
  2. For API access you register at etherscan.io, create a key in the API dashboard, and send requests to the Etherscan V2 endpoint with chainid=42161 for Arbitrum One.
  3. The same key works on all 60+ supported chains.
  4. Arbitrum One and Arbitrum Sepolia are both on the free tier.
  5. Etherscan warns against putting keys in client-side code or public repositories and says you should route calls through your own backend.

Arbiscan fees and limits

  • Lite at $49 a month raises the limit to 5 calls per second.
  • Standard at $199 adds PRO endpoints at 10 calls per second and 200,000 a day.
  • Advanced is $299, Professional is $399, and Pro Plus is $899 with up to 1.5 million calls a day.
  • Quarterly billing is 10% off and yearly billing is 15% off.

The free plan allows 3 calls per second and up to 100,000 calls a day, shared across all your keys, and it requires attribution. On the free plan, ENS forward resolution is limited to 1 call per second.

Risks to know before using Arbiscan

  • Verification only shows that the published source reproduces the bytecode deployed on chain.
  • Pro Plus is limited to one app license.
  • An API key counts against your plan limits and should be treated like a credential.
  • If a key leaks, Etherscan's docs say to remove it from the dashboard and create a new one.
Block explorerWebAPI

Arbiscan alternatives

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Where Arbiscan ranks on DappAtlas

Best Block Explorers#5 of 7

Arbiscan pros and cons

Pros
  • Shows L1 to L2 and L2 to L1 messages and batches
  • Free API tier: 3 calls/sec, up to 100,000 calls/day
  • Same API key works across Etherscan's 60+ chains
Cons
  • API Pro endpoints start at $199/month
  • Free API tier needs attribution and covers selected chains only

Arbiscan FAQ

What is Arbiscan?

Arbiscan is a block explorer and analytics site for Arbitrum One, built by Team Etherscan. It shows L1 to L2 and L2 to L1 transactions and batches, and its API is the Etherscan multichain API, free at 3 calls per second with paid plans from $49 a month.

Which chains does Arbiscan support?

Arbitrum One.

How much does Arbiscan cost?

Lite $49/mo, Standard $199/mo, Advanced $299/mo, Professional $399/mo, Pro Plus $899/mo, according to Arbiscan’s own page (checked Sep 26, 2026). Free plan: 3 calls/sec, up to 100,000 calls/day, attribution required.

Is Arbiscan available in the US?

Available: terms name no country restrictions, according to Arbiscan’s own page (checked Sep 26, 2026).

Sources

  1. Arbiscan: official site
  2. Arbiscan: Site footer
  3. Arbiscan: API pricing
  4. Arbiscan: Terms
  5. Arbiscan: Arbitrum One batches
  6. Arbiscan: Verify contract
  7. Etherscan docs: Set up your API key
  8. Etherscan docs: Rate limits
  9. Etherscan docs: Supported chains
  10. Etherscan docs: Verify with the API
  11. Etherscan docs: Make your first call

How this page works

Sources: Arbiscan: official site, Arbiscan: Site footer, Arbiscan: API pricing. Data as of Sep 26, 2026.

How we review

Not affiliated with any project listed. Educational content, not financial advice.