What it does
Blockscout searches supported blockchain addresses, transactions, tokens and contracts. Public explorer browsing is accompanied by optional saved-account features and an API with a lasting free allowance and paid capacity tiers.
Begin with the chain as well as the address. Blockscout’s multichain search can find the same address format on several networks; the chain-specific result determines which transfers and contract activity you are inspecting. Token-transfer views and readable transaction summaries help identify what moved.
For repeated monitoring, sign in to My Account with email or GitHub, then choose Watchlist and Add address. Enter the address, give it a private tag and choose the activity types that should generate email alerts. Native coins, ordinary tokens and collectibles can have different notification selections. The saved list can be edited or removed later. My Account organizes public data and does not store wallet keys or allow withdrawals.
The developer API is a separate connection for other software. Its published allowances include:
| API option | Monthly price | Credit allowance | Request rate |
|---|---|---|---|
| Free | $0 | 100,000 per day | Five per second |
| 100-million-credit tier | $49 | 100 million per month | Fifteen per second |
| 500-million-credit tier | $199 | 500 million per month | Thirty per second |
No card is required for the free tier.
Credits are not identical to requests. The Dev Portal’s API call costs table explains each endpoint; most use twenty credits, while heavier queries cost more. Top API endpoints and Chain distribution help locate a sudden increase in consumption.
Existing integrations need attention during the current API migration. Blockscout says old MyAccount keys and per-instance routes do not work with the unified API. Generate a key in the Dev Portal and follow the new route documentation before moving a production integration.
Strengths
- Private tags keep personal address labels separate from public metadata
- Contract pages include verification and interaction tools
- Developer reports separate credit use by endpoint and blockchain
Watch out for
- Saved watchlists and API keys require accounts
- Older per-instance API keys and routes need migration
Best for
- People monitoring recurring address activity across supported chains
- Developers comparing endpoint usage with an API credit allowance
Sources
- Blockscout multichain search and explorer features (Oct 27, 2026)
- Blockscout personal accounts and saved research tools (Oct 27, 2026)
- Blockscout address watchlist and notification controls (Oct 27, 2026)
- Blockscout free and paid API plans and cross-chain access (Oct 27, 2026)
- Blockscout credit usage and endpoint-cost reporting (Oct 27, 2026)
- Blockscout unified API migration notice (Oct 27, 2026)
- Blockscout public browsing and separate account features (Oct 27, 2026)