Monad is bringing a new performance frontier to the EVM world. Lightning-fast execution, parallelization, and instant finality make it a natural home for the next wave of consumer apps. And all builders need reliable wallet data — balances, tokens, NFTs, positions,and transaction history — delivered instantly, without custom indexers.
That’s where Zerion API comes in. It already powers some of the most ambitious products in crypto and helps supercharge the Monad ecosystem from day one.
What is Zerion API? The fastest way to get Monad wallet data
Zerion API is an enterprise-grade wallet data API used by wallets, DeFi apps, agent platforms, finance tools, and institutional products. It gives you instant, fully interpreted wallet data across chains without running your own infra.
Builders use it because it solves the hardest data problems:
- Sub-second balances & tokens, including the long tail
- Unified schema for EVM + Solana
- Token positions & onchain PnL in one call
- Historical transactions for reporting, tax, and analytics
- High throughput — from 150 RPS to thousands on dedicated plans
- Battle-tested reliability across consumer products with millions of users
Regardless of what you’re building, Zerion API can save you months of data indexing with a single integration.
And speed is crucial when it comes to building on a new chain.
Monad apps that use Zerion API
Monad’s speed and throughput unlock new use cases. Yet those experiences still depend on world-class wallet data that is just as fast.
Below are some of the Monad-aligned products already built with Zerion API.
Uniswap
Uniswap uses Zerion API to power wallet balance discovery, token lists, and long-tail asset coverage across chains. With a single surface for EVM + Solana, users connect their wallet and see tokens instantly — even on new chains like Monad.
By eliminating token blind spots, trading flows stay smooth and liquid.
Infinex
Infinex is a cross-chain super-app from Synthetix founder Kain Warwick. It relies on Zerion API to show a unified wallet state across users’ addresses. Tokens, balances, and positions load instantly, helping Infinex deliver a seamless, multi-chain trading and portfolio UX.
Infinex is planning to add Monad very soon. And for a high-performance chain like Monad, fast discovery is essential. Zerion provides it out of the box.
Backpack
Backpack is a user-friendly platform that combines a crypto exchange and wallet in one app.
It uses Zerion API to unify asset views across EVM and Solana without running its own indexers. Backpack users expect instant visibility into balances and positions. Zerion ensures nothing breaks when new chains or new tokens launch.
Adding Monad support becomes a configuration change, not an infra rebuild.
HeyElsa
HeyElsa is an AI copilot that helps you manage your onchain activity. Elsa uses Zerion API as its onchain data layer. Agents need fast, reliable wallet state to make decisions: balances, positions, risk, history, and more.
Zerion’s normalized data schema lets agents reason about a Monad address the same way they would about Ethereum or Solana.
P2P
P2P is the leading infrastructure provider behind major DeFi, trading, and staking products. It integrates Zerion API to streamline wallet insights and portfolio visibility across its ecosystem. For institutional-grade workflows — reconciliation, reporting, and high-throughput ingestion — wallet data is critical.
Zerion API provides reliable historical data and multi-chain positions, enabling P2P’s teams to support Monad without adding new indexing infra.
Build on Monad faster with Zerion API
Monad developers can start building instantly with Zerion API.
You get:
- Wallet data on Monad, EVM, Solana with one integration
- Instant wallet state for any address
- Positions, PnL, tokens, NFTs, history
- No nodes, no indexers, no maintenance
If you're building a wallet, a DeFi protocol, a trading app, an agent, or a tool on Monad, Zerion API gives you everything you need to ship fast.
Get your free developer key and start building for Monad today.