PnL Tracking is Now Live!

Build Incredible WALLETS

Enterprise-Grade Wallet Data API

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API SHOWCASE

Just 1 Request for All EVM + Solana

Get all data across 24+ blockchains with a single call to one of Zerion's REST API endpoints.

/Portfolio

Get Portfolio Data

Track tokens, NFTs, and balances across EVM & Solana.

/transactions

Get All Transactions

Pull full multichain transaction history with just one call.

/DeFi

Get DeFi & Protocol Positions

Fetch active DeFi positions, rewards, and liquidity pools for 8000+ protocols.

/PnL

Get PnL (Profit and Loss)

Calculate historical gains, losses, and invested value per wallet or position.

/Webhooks

Get Alerts for Transactions

Set up webhooks for any wallet address to get real-time notifications for new transactions.

/NFT

Get NFTs Held by an Address

Analyze owned NFTs, metadata, floor price, and more.

our benefits

Focus on Building, Not Infrastructure

Stop wrestling with complex blockchain data and infrastructure. Zerion API handles the heavy lifting so you can focus on your product.

Lightning-Fast Freshness

Data updates within milliseconds of new blocks.

Battle-Tested Reliability

Used by apps serving millions of onchain users.

Build the App, Not the Backend

Ditch your indexers, get real-time data instantly.

Get Easy Access to Wallet Data

Use cases

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

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Consumer

OpenSea, Farcaster, Surrapp, Privy & Para

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Crypto Accounting & Institutional Infra

Waltio, Kubera, P2P.org & CMT Digital

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Key Features

Built for Consumer Scale and Enterprise Reliability

26+

Supported Chains

Explore all chains

1000+

RPS

SLA

Guaranteed

99.9%

Uptime

Don’t see your chain? Request it here

Request Your Chain

Advantages

Add Blockchain Data to Your App

Everything you need to build powerful Web3 applications.

Atomic Transaction Parsing

Support for EIP-7702 batched transactions and AA addresses. Easily identify swaps, approvals, transfers, and even custom labels.

Built for Wallets

Plug-and-play endpoints for building portfolio trackers, wallets, PnL, with just a few lines of code.

Lightning Fast, Fully Enriched

Millisecond API responses with built-in enriched token & protocol metadata.

Multi-Chain Support

Unified support for all major EVM blockchains and Solana with uniform schema.

Enterprise Ready

Battle-tested for scale, uptime, security, and trusted by institutional partners.

Real-Time Webhooks

Follow wallet activity, protocol interactions, and token transfers with instant updates via webhooks.

Pricing

Simple, Transparent Pricing

Developer

$0/ forever

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

Key features:

5 K requests/month

10 RPS

Community support

Get Started FREE

Trusted by Industry Leaders

"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 Warpcast

"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 webhook 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

"Launching OS2 at scale required serious infra—we relied on Zerion API for real-time portfolio data supporting 1000+ RPS at launch, and it handled the load effortlessly."

David Finlay

Director of Engineering of OpenSea

"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