See every onchain fund position
Aggregated positions across every fund wallet, PnL with cost basis, and decoded history on 40+ chains — one API for fund operations.
Threely
Genius Terminal
Yieldschool
InfinexThreelyGenius TerminalYieldschoolInfinexWhy now
Tracking positions and transactions across chains requires an ongoing engineering effort.
Zerion API takes care of that so your team can focus on strategies, not data plumbing.
Product mapping
The endpoints a fund runs on — and what each one returns.
/wallet-setsWallet Sets
One EVM and one Solana address, aggregated as a set.
/positionsPositions
Every holding — tokens, staking, lending, LP, vaults — normalized.
/pnlPnL
Realized and unrealized gains, cost basis, net invested.
/transactionsTransactions
Full multichain history, decoded into Send, Swap, Borrow, Claim.
/balance-chartChart
Portfolio value over time for performance graphs.
/subscriptionsAlerts
Real-time push on new transactions and balance changes.
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.
“Zerion API powers Kraken 2.0 with reliable token balances, P&L, and transaction history through one consolidated integration, making it easier to scale to more users.”
What can you build?
DeFi
Fund positions are DeFi positions. Track staked, lent, and LP capital across 4,500+ protocols — with accrued rewards, normalized.
Stablecoins
Track stablecoin balances and flows across your fund's wallets — every chain, every issuer, one schema.
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.