Basescan vs Optimistic Etherscan
A detailed head-to-head comparison of Basescan and Optimistic Etherscan — pricing, features, and which one wins for different use cases.
Basescan
The official Etherscan-family explorer for Coinbase's Base L2
Basescan is the Etherscan-built block explorer for Base, Coinbase's fast-growing Ethereum layer-2. It provides the full Etherscan toolset scoped to Base: transaction and address lookup, Solidity contr…
Full review →Optimistic Etherscan
The Etherscan-family explorer for the OP Mainnet layer-2
Optimistic Etherscan is the official Etherscan-built block explorer for OP Mainnet, the flagship chain of the Optimism / OP Stack ecosystem. It brings Etherscan's full feature set to Optimism: transac…
Full review →Feature Comparison
| Feature | Basescan | Optimistic Etherscan |
|---|---|---|
| Transaction History | ✓ | ✓ |
| Contract Verification | ✓ | ✓ |
| Token Tracking | ✓ | ✓ |
| Nft Tracking | ✓ | ✓ |
| Api Access | ✓ | ✓ |
| Multi Chain Support | ✗ | ✗ |
| Gas Tracker | ✓ | ✓ |
| Source Code Viewer | ✓ | ✓ |
| Address Labels | ✓ | ✓ |
| Private Notes | Pro plans | Pro plans |
Basescan Pricing
Basescan
Free
Free
- ✓Full explorer access
- ✓Unified V2 API (5 calls/sec)
- ✓Contract verification
- ✓Token + gas tracking
Basescan
Pro Starter
$19/mo
$190/yr billed annually
- ✓10 calls/sec
- ✓Address watchlist alerts
- ✓Private notes
- ✓Priority support
Basescan
Pro Standard
$99/mo
$990/yr billed annually
- ✓30 calls/sec
- ✓Advanced monitoring
- ✓CSV exports
- ✓5 user seats
Optimistic Etherscan Pricing
Optimistic Etherscan
Free
Free
- ✓Full explorer access
- ✓Unified V2 API (5 calls/sec)
- ✓Contract verification
- ✓Token + gas tracking
Optimistic Etherscan
Pro Starter
$19/mo
$190/yr billed annually
- ✓10 calls/sec
- ✓Address watchlist alerts
- ✓Private notes
- ✓Priority support
Optimistic Etherscan
Pro Standard
$99/mo
$990/yr billed annually
- ✓30 calls/sec
- ✓Advanced monitoring
- ✓CSV exports
- ✓5 user seats
Verdict: Which Should You Choose?
Basescan is the better pick if you need reference explorer for the high-activity base l2. Optimistic Etherscan wins when canonical explorer for op mainnet. Both are production-ready — the right choice depends on your team's workflow and budget.