Sei block explorer — view transactions and network state
A block explorer lets you read any transaction, address, or contract on the Sei chain. The two most-used explorers are seitrace.com and seistream.app. Both are public, free, and maintained by community operators. Sei Wallet also includes a built-in explorer view for quick lookups without leaving the app.
- Open source
- Free & open license
- Independent audit
- Signed builds
seitrace.com
The most-used explorer on Sei. Comprehensive transaction, address, validator, governance, and contract coverage. Includes token-approval manager and address-association lookup.
seitrace.comseistream.app
Alternative explorer with a focus on real-time data and clean UX. Strong for transaction tracking and wallet address history.
seistream.appMintscan (Cosmos legacy)
Cosmos-side view of Sei — governance proposals via Cosmos governance module, IBC channels, CosmWasm contracts. Being phased out alongside the rest of the Cosmos stack.
mintscan.io/seiWhat you can do with a block explorer
- Look up a transaction by hash. Paste a 0x… 64-character string from your wallet's history. See success/fail, block, gas used, exact contract function called, and any internal transfers.
- Look up an address. Paste a 0x or sei1 address. See SEI balance, ERC-20 holdings, recent history, and whether the address is associated to a counterpart in the other format.
- Look up a validator. Paste a seivaloper1… address or search by name. See total stake, commission rate and history, uptime, self-bond, voting record, and slashing history. For more, see /staking/validators.
- Look up a smart contract. See bytecode, verified source (where verified), event logs, recent calls. Useful for verifying a dApp's contract before approving allowances.
- Check a block. See all transactions, sub-400ms timestamp, block proposer, gas used, and block hash.
- Track a token contract. See total supply, holder count, recent transfers, top holders, and transfer activity.
How to read transaction states
| State | What it means |
|---|---|
| Success / Confirmed | Transaction included in a block and executed without errors. State changes happened. |
| Failed | Included in a block but reverted. Gas was paid; no state changes happened. The explorer usually shows the revert reason. |
| Pending | Submitted but not yet included. On Sei this is usually transient (~400ms). |
| Dropped / Replaced | Submitted but never included, or replaced by a higher-fee version. Wallet UIs sometimes label this "Cancelled". |
Common revert reasons: insufficient allowance, insufficient balance, slippage too high, out of gas.
Things explorers can't do
- Recover a lost seed phrase. The explorer shows funds at an address; it cannot generate the private key for that address. Anyone offering "recovery via the explorer" is a scammer.
- Reverse a transaction. Once on-chain, it's permanent. Explorers don't have a reverse button — the chain itself doesn't.
- Identify scams ahead of time. Some explorers flag known scam addresses after the fact; they can't predict which contract will exploit users next.
- Provide customer support. Block explorers are public infrastructure run by community operators. Contact the wallet, dApp, or chain's support directly.
Useful features beyond basic lookup
- Token approval manager (seitrace.com). Shows all contract approvals your address has granted; revoke directly. Worth doing periodically.
- Address watchlist. Bookmark addresses for monitoring — useful for treasuries or specific contracts.
- CSV transaction export. Useful for tax filing or accounting. Filter for the address-association case so paired sei1/0x history merges cleanly.
- Real-time API / WebSocket. For developers and power users — see the explorer's docs, plus /learn/sei-rpc for direct RPC endpoints.