Get real-time, reliable blockchain data across any EVM chain
A multi-chain Indexer with balances, prices, contract events, and webhooks to power your project, with data you can trust.
Get real-time, reliable blockchain data across any EVM chain
A multi-chain Indexer with balances, prices, contract events, and webhooks to power your project, with data you can trust.
Works with any EVM Chain
Power essential crypto use cases with real-time data
Get all token balances for an account from any EVM chain instantly
Fetch wallet balances in < 300ms with a single API request across all EVM chains
Run offchain workflows from contract webhooks
Fetch all unique tokens from a contract
Track multiple stablecoin asset balances onchain
Query the blockchain in real-time
- Balances
- Instant ERC20, ERC721, and ERC1155 token balances with native tokens, price data, and collectibles per account.
- Transactions
- Transaction history and receipts with advanced filtering.
- Events
- Contract-specific and address-specific event logs, with support for subscription endpoints.
- Metadata
- Token and contract metadata, including name, symbol, images, traits, attributes, and properties.
- Supplies
- Token supplies per token ID and per contract.
USDC on ArbitrumWhy developers love Sequence Indexer
Fast & Reliable
99.99% availability and 3x faster response times than other solutions in the market.
Complete coverage
Every ERC20, ERC721, and ERC1155 indexed across EVMs, with metadata bundles and token images.
Built-in price data
Get price-aware balances out of the box, with USD values. No need to wire up third-party pricing services.
Easy to integrate
Use straightforward REST endpoints or our SDKs, and wire webhooks n minutes, not months.
Trusted by the top builders, backed by crypto leaders
Developers building with Sequence have the support of major ecosystems, partners, and investors, including Arbitrum, Coinbase, Polygon, and more.
FAQ
Ready to build? Plug in your API key, call GetTokenBalancesSummary, and ship your first priced portfolio view in minutes. Then add webhooks or subscriptions for real-time updates.
What chains do you support?
We support a wide range of EVM mainnets and testnets. You can see the complete live networks list on our status page.How fast is the Indexer?
Cached reads return in under 300ms, while new onchain events are indexed and available in under one second.Can I get token and NFT metadata with my balance calls?
Yes. Balance calls return ERC721 and ERC1155 metadata inline, or you can use the Metadata API for direct queries and refreshes.Do you support real-time notifications?
Yes. You can subscribe to receipts and events via RPC, or configure webhooks directly to your backend.How do you prevent spam tokens?
Sequence Indexer verifies tokens using multiple trusted sources, and by default, only returns verified tokens. You can also include unverified tokens if needed. Any contract deployed through Sequence Builder is automatically verified, and you can submit a PR to our token directory to verify your token.Get real-time, reliable blockchain data today
