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Unichain Wallet Data API by Zerion

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Complete Unichain API Product Suite

Production-ready endpoints that power the next generation of Base applications.

Wallet Portfolio

Complete portfolio aggregation in one call

/wallets/{address}/portfolio

Get comprehensive wallet holdings with real-time pricing and portfolio analytics

Multi-Chain balances

Portfolio breakdown

USD valuations

Portfolio Docs

DeFi Positions

Track positions across 8000+ protocols

/wallets/{address}/positions

Monitor DeFi positions across thousands of protocols with detailed yield and risk analytics

Lending positions

LP tokens

Staking rewards

Protocol coverage

DeFi Docs

Wallet Transactions

Transaction history with context

/wallets/{address}/transactions

Access enriched transaction data with smart contractinteraction details

Decoded transactions

DeFi interactions

Filters

Transactions Docs

Transaction Subscriptions

Real-time wallet monitoring

/tx-subscriptions

Subscribe to wallet activities with real-time notifications and custom triggers

Instant notifications

Custom filters

Webhook delivery

Subscriptions Docs

Wallet PnL

Profit & loss analytics

/wallets/{address}/pnl

Track portfolio performance with detailed profit and loss calculations

Realized gains

Unrealized PnL

Net Invested Amounts

Transactions Docs

Need custom endpoints?

Our API is designed for flexibility. Request custom data aggregations, specialized analytics, or enterprise-specific endpoints.

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Trusted by Leading dApps, Wallets, and Enterprises

Use the API that powers apps for 1000,000+ users.

our benefits

Why Choose Our Unichain API?

Lightning-Fast Freshness

Data updates within milliseconds of new blocks.

Battle-Tested Reliability

Used by apps serving millions of onchain users.

Easy
Integration

Add blockchain data to apps without any backend work

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robust foundation

Unichain Network Snapshot

Unichain is a high-performance Layer-2 network built to bring Ethereum’s security together with ultra-low fees and fast finality. Developed by Uniswap Labs, Unichain is designed specifically for the next generation of onchain applications.

It uses OP Stack technology combined with Uniswap-native optimizations, enabling seamless interoperability with Ethereum while delivering scalable blockspace for developers.

For teams building apps that need instant reads, smooth UX, and reliable state access, Unichain provides familiar EVM tooling with modern performance enhancements.

Key features

EVM-equivalent architecture
Fast finality, perfect for DeFi
Low fees
Unified liquidity from across chains

Mainnet

NETWORK STATUS

BLOCK TIME

$125M

TOTAL VALUE LOCKED

$0.01

AVG GASS FEE

Enterprise infrastructure

Built for Consumer Scale and Enterprise Reliability

Powering applications from startups to fintech companies with infrastructure that scales seamlessly and delivers consistently.

1000+

RPS

SLA

Guaranteed

99.9%

Uptime

Enterprise infrastructure

Infrastructure Built to Scale

Cross-Chain by Default

Supports Base and all other chains — one call does it all.

Made for Builders

Ideal for wallets, trackers, fintech, AI agents, and more.

No Setup Required

Zerion API requires no nodes or infrastructure from your side.

Smart Webhooks

Only fetch portfolio data when there are new transactions.

Unified Endpoint

Fetch a full portfolio (tokens, DeFi, NFTs) from one endpoint.

Crosschain

Built for Consumer Scale and Enterprise Reliability

26+

Supported Chains

Explore all chains

Pricing Tiers

Simple, Transparent Tiers

Start building for free. Upgrade as you scale.

Developer

$0/ forever

For solo builders and teams who want to test before scaling.

Key features:

3K requests/day

2 RPS limit

Local development only

Community support

Get Started Free

Builder

$149/ month

For useful data analysis.

Key features:

Up to 250K requests/month

50 RPS

Production-ready API keys

Telegram/Email support

Start Building

Real results from teams shipping with Zerion API

Wallets & DeFi

Rainbow, Kraken, Backpack & Infinex

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AI Agents

HeyElsa, Ask Gina, Loomlay & Kirha.ai

LEARN MORE

Consumer

OpenSea, Farcaster, Surrapp, Privy & Para

LEARN MORE

Crypto Accounting & Institutional Infra

Waltio, Kubera, P2P.org & CMT Digital

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Testimonials

Trusted by Industry Leaders

Join thousands of satisfied developers who trust our APIs for their mission-critical applications.

"We love Zerion API because it made it easy to add recent activity to Web3Modal without the need to run our own infrastructure. Their API works across 18+ networks and also includes NFTs besides transactions."

Derek Rein

CTO of WalletConnect

"It was effortless for our engineers to build Rainbow's UX integrating Zerion API for transactions and positions data. Their infra has handled our load seamlessly!”

Jin Chung

Co-Founder of Rainbow Wallet

"Zerion's multi-chain wallet API gives our AI agents the ability to understand users' complete portfolios across all major networks. This visibility enables personalized experiences for blockchain users.”

Founder of Heurist.ai

"Zerion API helped us reduce the latency in fetching the user portfolio significantly. Since Elsa enables users to write or speak a prompt, getting portfolio details in seconds is magical."

Hey Elsa Team

"Zerion API is a swiss army knife for blockchain agents, delivering sophisticated aggregation of wallet analytics like cross chain PnL through one unified API call. Integrating them into our MCP aggregator empowers AIs with comprehensive, real time blockchain intelligence."

Pierre

CEO & Founder of Kirha

"Zerion API has been powering our EVM data since day one, fueling everything from enriched transactions to NFT positions and charts. It
helped validate key wallet use-cases well before Warpcast Wallet even existed."

Varun Srinivasan

Co-Founder of Farcaster

"We've worked with Zerion API since day zero even before we launched Uniswap Wallet. From multichain positions to custom labels and EIP-7702 batching support, theyʼve been a key partner across every wallet update."

Noah Citron

Engineering Lead of Uniswap Wallet

"Zerion’s portfolio and APIs are integral to Infinex’s cross-chain experience. Their infra gives us the speed and reliability needed for real-time crypto UX."

Kain Warwick

Founder of Infinex & Synthetix

"Zerion’s transaction and portfolio APIs power Privy’s wallet experience - everywhere we show wallet balances in the dashboard is powered by Zerion. Their reliable data has given our engineers the speed and reliability to deliver a core part of Privy's value to developers."

Max

COO of Privy

Ready to Build the Future?

Join the thousands of developers already building on our platform. Start with our free tier and scale as you grow.

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No credit card required • 5 minute setup • 24/7 support

If you have any questions

FAQ

Can Zerion API fetch token balances for any wallet on Unichain?

Yes. Zerion API supports Unichain, allowing you to fetch all ERC-20 and native token balances for any address through the wallets/address/positions/ endpoint.

How can I get a full DeFi portfolio (positions, LPs, staked assets) on Unichain?

Use Zerion API's wallets/address/positions/ endpoint with the 'only_complex' filter to retrieve protocol-level positions (DEX LP, staking, lending, etc.) for any Unichain wallet.

Does Zerion API support transaction history on Unichain?

Absolutely. You can get the full transaction history for any address using the /wallets/address/transactions Zerion API endpoint, including swaps, transfers, mints, bridges, and contract interactions on Unichain.

Can Zerion API help me identify which apps a wallet uses on Unichain?

Yes. With /wallets/address/transactions and wallets/address/positions/ endpoints surface protocol names, contract interactions, and asset movements, making it easy to map out wallet behavior across Unichain apps.

‍

How can I track NFTs on Unichain?

With Zerion API, you can fetch NFT balances and metadata for any Unichain address, using the /wallets/address/nft-positionss endpoint. It supports all ERC-721 and ERC-1155 collections on Unichain. You can also use /wallets/address/nft-collections endpoint to get the list of NFT collections for any Unichain address.

Still have questions?

Can't find the answer you're looking for? Our support team is here to help.

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