Optimistic Etherscan vs Otterscan
A detailed head-to-head comparison of Optimistic Etherscan and Otterscan — pricing, features, and which one wins for different use cases.
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 →Otterscan
Fast, self-hosted open-source explorer that runs on your own Erigon node
Otterscan is a free, open-source, self-hosted block explorer designed to run directly on top of your own Erigon (or compatible) Ethereum node, giving you an Etherscan-like experience with complete pri…
Full review →Feature Comparison
| Feature | Optimistic Etherscan | Otterscan |
|---|---|---|
| Transaction History | ✓ | ✓ |
| Contract Verification | ✓ | ✗ |
| Token Tracking | ✓ | ✓ |
| Nft Tracking | ✓ | ✗ |
| Api Access | ✓ | ✗ |
| Multi Chain Support | ✗ | ✗ |
| Gas Tracker | ✓ | ✗ |
| Source Code Viewer | ✓ | ✓ |
| Address Labels | ✓ | ✓ |
| Private Notes | Pro plans | ✗ |
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
Otterscan Pricing
Otterscan
Free
Free
- ✓Fully open-source
- ✓Self-hosted on your Erigon node
- ✓Private, fast local lookups
- ✓Internal-tx tracing
- ✓Approval + history analysis
Verdict: Which Should You Choose?
Optimistic Etherscan is the better pick if you need canonical explorer for op mainnet. Otterscan wins when runs on your own node — fully private, no third-party queries. Both are production-ready — the right choice depends on your team's workflow and budget.