The onchain data layer for fintech
Bring crypto balances, transaction history, portfolio performance, and DeFi positions into your product through one multichain integration.
KuCoin
Bitget
KuCoinBitgetWhy now
The next generation of financial accounts will include both traditional and onchain assets.
Zerion provides the data layer fintechs need to make that experience complete, accurate, and understandable.
Product mapping
The endpoints a finance app is built on — and what each one returns.
/portfolioPortfolio
Net worth and allocation by chain and position type, one call.
/positionsPositions
Every holding — tokens, staking, lending, LP, vaults — normalized.
/transactionsTransactions
Statement-ready multichain history, decoded into clear actions.
/pnlPnL
Realized and unrealized gains, cost basis, net invested.
/balance-chartChart
Portfolio value over time for performance graphs.
/fungiblesFungibles
Token metadata, logos, live and historical prices.
/chainsChains
40+ chains, EVM and Solana normalized.
How it works
We index every chain
Zerion runs the nodes and indexers for 40+ chains and 4,500+ protocols, continuously — so you don't.
We interpret the data
Raw activity is decoded, priced, and normalized into one clean schema: positions, transactions, NFTs, and PnL.
You serve it in one call
A single REST request returns render-ready JSON — no post-processing, token lists, or price feeds to maintain.
Focus on building,
not infrastructure.
Ship faster
Live in minutes
One key, one request, and you're serving portfolio data. No nodes, no indexers, nothing to maintain.
Reliability
Battle-tested at scale
The same infrastructure behind Zerion Wallet and the industry's biggest wallets.
Real-time
Fresh with every block
Balances, positions, and transactions that move with the chain. Never stale, never guessing.
Coverage
Every chain, one schema
EVM and Solana, normalized into a single response. One integration covers everything your users touch.
“We have a lot more features coming soon. I'm expecting tens of millions of API calls, and a lot more than that soon. And we're shipping faster than ever. This wouldn't have been possible without the Zerion team.”
What can you build?
Stablecoins
Moving stablecoins? Balances, transfers, and statement-ready history across every chain and issuer — built for payment flows.
Wallets
Embedding a wallet? Portfolio views, decoded transactions, and real-time alerts — the same data behind Uniswap Wallet and Privy.
Stay ahead with the Zerion API
New endpoints, chains, and webhooks — straight to your inbox.
Simple, transparent tiers
Start building for free. Upgrade as you scale.
For early prototypes and proofs of concept
Get Started Free- 2K requests / day
- 3 RPS limit
- Chat widget
- Best effort support
For shipping MVP without running any Infrastructure
Start building- Up to 250K requests / month
- 10 RPS
- Telegram group
- Priority support
For apps preparing for launches or already in production
Start building- Up to 1M requests / month
- 25 RPS
- Slack or Telegram channel
- Priority support
Custom pricing & features
For scale-ups & enterprises with high volume or custom needs
Contact salesDeFi Positions, Wallet Portfolio Chart, and Wallet P&L endpoints are limited to 25% of every plan quota and aren’t covered by overages.
Building at scale? Talk to our team.
Volume pricing, a guaranteed uptime SLA, and a dedicated team behind your integration — for the products serving millions of users.
99.9% uptime SLA
Guaranteed reliability backed by an SLA, on infrastructure built for production workloads.
Custom volume pricing
Plans that scale with your request volume — from launch to hundreds of millions of calls a month.
Dedicated support
A dedicated account manager and priority channel, from integration through scale.
Let's build
together
Talk to the team behind the wallet data in Coinbase, Uniswap, Safe, and Kraken. Tell us what you're building and we'll get back to you as soon as possible.