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Explorer review · Updated Sep 2026

PolygonScan review: the Polygon explorer most people start with

PolygonScan is the Etherscan-built block explorer behind most Polygon links. We used it daily for months and put every feature, from contract verification to the API, to the test.

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Updated: 9 min read Reviewed by the Polygon Explorer editorial team
Glowing orange network of connected blocks representing a blockchain explorer
  • Rated 4.8 out of 5
  • Built by the Etherscan team
  • API via Etherscan V2
  • Amoy and zkEVM subdomains
4.8

Our score

PolygonScan

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The most complete Polygon explorer you can use today. Deep data, contract tools and a free account make it the default; the busy layout and keyed API are the only real trade-offs.

Data depth4.9
Speed4.7
Ease of use4.6
API4.5
Extra tools4.9

What we like

  • Deepest decoding and labels on Polygon PoS
  • Contract verification, read and write
  • Token approval checker built in
  • Free watchlists, alerts and CSV export
  • Familiar Etherscan layout

What could be better

  • Dense interface with ads
  • API needs a key, free tier limited
  • Not open source

PolygonScan is the most complete Polygon explorer available in 2026 and earns a 4.8 out of 5 in our review. Built by the Etherscan team, it lets you look up any Polygon PoS transaction, wallet, token or contract, verify and interact with smart contracts, check token approvals and pull data through Etherscan API V2. The trade-offs are a busy interface and a keyed API.

Our verdict in 30 seconds

If you only bookmark one Polygon explorer, make it PolygonScan. It decoded everything in our test set, has the best labels and the only built-in approval checker among the big explorers. Choose Blockscout instead if you prefer open-source software or need an API without registering.

We have used PolygonScan almost every working day since before the MATIC-to-POL rename. For this review we went through it systematically in September 2026: the same USDC transfer, failed swap, NFT mint and exchange wallet we use to test every explorer in our Polygon explorer ranking, plus a contract we deployed and verified ourselves.

What PolygonScan is and who runs it

PolygonScan is the Polygon PoS edition of Etherscan, the best-known Ethereum explorer. The same team builds and operates it, and it shares Etherscan's code base, design and account system. That matters in practice: every habit you have built on Etherscan — where to find the input data, how to read logs, how the token tracker works — carries over one to one.

It is not run by Polygon Labs. There is no single official Polygon explorer, but PolygonScan is the closest thing to one: it is the block explorer URL in MetaMask's default Polygon network settings, and most wallets, bridges and dApps link to it when they show you a transaction. When somebody sends you a "Polygon tx link", it is usually a polygonscan.com link.

4.8/5Our overall rating, Sep 2026
chainid=137Polygon PoS in Etherscan API V2
3Networks: PoS, Amoy, zkEVM archive

Features: what the PolygonScan Polygon explorer can do

The feature list is long. Here are the parts we actually use and how well they worked.

Transactions. Every transaction page shows status (Success, Fail or Pending), block and confirmations, timestamp, from and to, value in POL, transaction fee, gas price in gwei, gas limit and usage, nonce, and a list of every ERC-20, ERC-721 and ERC-1155 transfer inside it. Input data is decoded for verified contracts, and the Logs tab shows every emitted event. Internal transactions — value moved by contracts rather than wallets — have their own tab. In our failed-swap test, PolygonScan showed the revert message right beside the status, which saved a trip to a debugger.

Addresses. A wallet page gives you the POL balance with a USD estimate, a token holdings dropdown with values, and tabbed histories for normal transactions, internal transactions, token transfers and NFT transfers. Labels matter here: the exchange hot wallet in our test set was clearly tagged, which none of the smaller explorers matched.

Tokens and NFTs. Token tracker pages show total supply, holders, transfers, the contract, and — for tokens whose issuers have submitted information — the official website and social links. NFT pages list token IDs and ownership. PolygonScan also flags many suspicious tokens and hides obvious spam in wallet views, though no filter catches everything. For the stablecoins people most often get tricked with, compare contracts against our USDT and USDC explorer page.

Contracts. You can verify source code (single file, multi-file, standard JSON input and via common frameworks' plugins), then read state and call write functions by connecting a wallet. Proxy contracts are detected, and you can read the implementation through the proxy. Our own test contract verified in under a minute using the standard JSON option.

Tools. A gas tracker, charts and statistics (daily transactions, addresses, gas used), a unit converter, a token approval checker, and a CSV export for transactions and token transfers. The gas tracker splits prices into low, average and high tiers in gwei.

Use the approval checker every few months. Every DEX trade or NFT listing usually grants a contract permission to move your tokens. Open the Token Approvals tool, connect your wallet, and revoke anything you no longer use — especially "unlimited" approvals to contracts you do not recognise. Revoking costs a small gas fee in POL.

UI walkthrough: reading a PolygonScan transaction page

The layout is dense, so here is the order we read a transaction page in. It takes about fifteen seconds once you are used to it.

  1. Status and confirmations. Top of the Overview tab. Success plus a handful of confirmations is final — since Heimdall v2 in July 2025, Polygon reaches finality in about five seconds.
  2. From and To. "To" is often a contract (a token, a router, a bridge), not the final recipient. For token payments, the real recipient appears in the transfers section below.
  3. ERC-20 Tokens Transferred. This is the line that matters for USDT and USDC payments. Check the amount, the recipient and — crucially — click the token to confirm its contract address.
  4. Value and Transaction Fee. Value is native POL moved. The fee is what the sender paid for gas, usually fractions of a cent.
  5. More details. Expand it to see gas price, gas limit and usage, nonce and input data. Switch to the Logs tab for raw events.

The biggest improvement in the last couple of years is the transaction "action" summary near the top, which describes swaps and transfers in a sentence. It is not as polished as Blockscout's version, but it helps beginners. If you want a gentler introduction to every field, our guide to checking a Polygon transaction follows the same field order and applies to any Etherscan-style explorer.

Free account features: watchlists, alerts, notes and exports

You can use PolygonScan without an account, but a free one (shared with Etherscan) is worth the two minutes. It gives you:

  • Watchlists for addresses, with email notifications for incoming and outgoing transactions — ideal for monitoring a donation or business wallet.
  • Private name tags and notes, visible only to you, so "0x8f3…" becomes "Supplier A".
  • CSV exports of transaction and token-transfer history, useful for bookkeeping. The export has row limits per download, so split long periods.
  • API keys, which you will need for any programmatic access.
  • Token and address submissions if you are a project owner updating your token profile.

If you want to follow a wallet without creating any account at all, our wallet tracking guide shows the alternatives, including our own explorer's address view.

The PolygonScan API in 2026: Etherscan API V2

The standalone PolygonScan API has been folded into Etherscan API V2. One key, created on etherscan.io, works across all supported chains; you choose the network with a chainid parameter. For Polygon PoS that is 137, for Amoy it is 80002.

curl "https://api.etherscan.io/v2/api?chainid=137&module=account&action=balance&address=0xYourAddress&tag=latest&apikey=YOUR_KEY"

The modules are the familiar Etherscan ones: account (balances, transaction lists, token transfers), contract (ABI, source code, verification), transaction (receipt status), block, logs, token and a proxy module that forwards common JSON-RPC calls. Responses are JSON with a status, message and result.

The free tier requires a key and is rate-limited; the exact per-second and per-day limits, and which chains are included for free, have changed more than once. Check the current plan in the Etherscan API documentation before building on it. If you only need moderate volume and prefer not to register, Blockscout's keyless API is the easier start — we compare both, plus public RPC endpoints, in our Polygon explorer API guide.

Testnet and zkEVM subdomains

PolygonScan runs separate sites for Polygon's other networks. Knowing which is which saves a lot of "my transaction disappeared" panic.

SubdomainWhat it covers
polygonscan.comPolygon PoS mainnet (chain ID 137)
amoy.polygonscan.comAmoy testnet (80002), anchored to Sepolia
zkevm.polygonscan.comzkEVM archive (1101), read-only
mumbai.polygonscan.comRetired testnet, no live data

Amoy is where you test contracts before deploying to mainnet; the explorer has the same verification and read/write tools as the main site. See our Amoy testnet explorer page for faucets and network settings. The zkEVM site is now an archive: Polygon zkEVM was sunset and its sequencer shut down in July 2026, so it is useful for looking up historical transactions but availability may change — our zkEVM explorer page covers what to do with remaining funds.

Limits, weak spots and privacy

No explorer is perfect, and PolygonScan's weaknesses are worth knowing.

Where it shines

  • Correct decoding of every transaction in our test set
  • The richest entity labels on Polygon
  • Contract tools that developers rely on daily
  • Stable under load; pages loaded quickly in our tests

Where it falls short

  • Crowded layout; ads and sponsored slots near search
  • Closed source, so you cannot self-host or audit it
  • Occasional bot checks when browsing quickly
  • Keyed API with tier limits

Privacy. Browsing without an account is anonymous in the usual web sense: your IP address and browser details reach the site, and standard analytics and advertising cookies apply depending on your consent choices. With an account, your watchlists and tags are linked to your email. Remember that any address you look up is public anyway; the privacy question is whether your interest in an address is linked to you. If that matters, use a tool that runs queries from your browser without accounts — our live Polygon explorer does exactly that — and decline non-essential cookies.

Scale. Very large wallets (exchanges, bridges) have histories in the millions of transactions. The web UI paginates and the CSV export caps rows per file, so for full histories use the API or a data platform such as Dune.

Pro tips for PolygonScan power users

  • Search by more than hashes. The search box accepts token names, labelled contract names and block numbers, not just hashes and addresses. Typing "USDC" shows several tokens — pick the one whose contract matches Circle's native address 0x3c499c542cEF5E3811e1192ce70d8cC03d5c3359.
  • Use the "Click to see more" section on transactions: gas price and nonce are the two fields you need when a transaction is stuck. Our mempool explorer page explains how to replace one.
  • Bookmark the verified contract of any dApp you use often and interact through "Write Contract" if the front end goes down.
  • Check before you pay. Paste the recipient address into the search box first. A fresh, empty address is fine for a new wallet, but a label like "Fake_Phishing" is a hard stop.
  • Share responsibly. A PolygonScan link is the standard proof of payment. If the other side prefers a clean receipt or PDF, our payment verification guide shows how to produce one.

If you need POL for gas or stablecoins to test with, get them from a regulated exchange that holds licences in several jurisdictions and can withdraw directly to Polygon PoS — confirm the withdrawal network is Polygon, not Ethereum, before you send.

Our verdict on PolygonScan

PolygonScan is still the best everyday Polygon block explorer in 2026. Its data is the deepest, its labels the richest and its contract tools the ones developers expect. The interface is busier than we would like and the API now always needs a key, but neither is a reason to look elsewhere for most people. Pair it with Blockscout for a second opinion and an open API, and read our alternatives roundup if you need specialised tools for debugging, tracing or analytics.

Frequently asked questions

Is PolygonScan the official Polygon explorer?

Not formally. PolygonScan is built and operated by the Etherscan team, an independent company, and Polygon's documentation lists it alongside other ecosystem explorers. It is, however, the de facto standard: MetaMask's default Polygon network settings use polygonscan.com as the block explorer URL, and most wallets and dApps link to it. Always type the domain yourself to avoid lookalike sites.

Is PolygonScan free to use?

Yes. Searching transactions, addresses, tokens, blocks and contracts is free and needs no account. A free account adds watchlists, email notifications, private notes and name tags, and CSV exports. The API is also available on a free tier, but it requires an API key and has rate limits. Paid plans raise those limits for heavy users.

How do I get a PolygonScan API key?

PolygonScan's API now runs through Etherscan API V2. Create an account on etherscan.io, generate a key in the API section, and call https://api.etherscan.io/v2/api with chainid=137 for Polygon PoS. The same key works for other supported chains. Limits and free-tier coverage change from time to time, so check the current plan in the Etherscan docs and our API guide.

Why does PolygonScan show my transaction as Fail?

Fail means the transaction was included in a block but the smart contract reverted it — for example because of slippage on a swap, an expired deadline or insufficient allowance. Your funds did not move, but the gas fee was spent. Open the transaction and look for the error message next to the status, then retry with corrected settings. Our transaction guide covers common causes.

Does PolygonScan still work for Mumbai and zkEVM?

Mumbai was deprecated in April 2024, so mumbai.polygonscan.com no longer shows live data; use amoy.polygonscan.com for the current testnet. Polygon zkEVM was sunset in 2026 and its sequencer shut down in July; zkevm.polygonscan.com remains available as a read-only archive for historical transactions, although availability may change.

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