Base API: Build Faster with Enterprise-Grade Wallet Data
Complete Base API Product Suite
Production-ready endpoints that power the next generation of Base applications.
Get comprehensive wallet holdings with real-time pricing and portfolio analytics
Monitor DeFi positions across thousands of protocols with detailed yield and risk analytics
Access enriched transaction data with smart contractinteraction details
Subscribe to wallet activities with real-time notifications and custom triggers
Track portfolio performance with detailed profit and loss calculations
Our API is designed for flexibility. Request custom data aggregations, specialized analytics, or enterprise-specific endpoints.
Trusted by Leading dApps, Wallets, and Enterprises
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Why Choose Our Base API?
Data updates within milliseconds of new blocks.
Used by apps serving millions of onchain users.
Integration
Add blockchain data to apps without any backend work
Base Network Snapshot
Ethereum L2 for everyone. Base is a Coinbase-backed Layer-2 netowork with OP Stack technology, providing developers with a robust foundation for building scalable decentralized applications.
Key features
- EVM-compatible smart contracts
- Low transaction costs
- Fast finality and high throughput
- Ethereum security inheritance
- Close integration with Coinbase and Base App
Built for Consumer Scale and Enterprise Reliability
Powering applications from startups to fintech companies with infrastructure that scales seamlessly and delivers consistently.
RPS
Guaranteed
Uptime
Infrastructure Built to Scale
Zerion API requires no nodes or infrastructure from your side.
Supports Base and all other chains — one call does it all.
Only fetch portfolio data when there are new transactions.
Fetch a full portfolio (tokens, DeFi, NFTs) from one endpoint.
Ideal for wallets, trackers, fintech, AI agents, and more.
Built for Consumer Scale and Enterprise Reliability
Simple, Transparent Tiers
Start building for free. Upgrade as you scale.
For solo builders and teams who want to test before scaling.
For growing teams who want to move fast
For fast-growing teams with higher traffic & support needs
For scale-ups & enterprises with high volume or custom needs
Real results from teams shipping with Zerion API
Trusted by Industry Leaders
Join thousands of satisfied developers who trust our APIs for their mission-critical applications.
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helped validate key wallet use-cases well before Warpcast Wallet even existed."
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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.
Start Building for FreeNo credit card required • 5 minute setup • 24/7 support
FAQ
Zerion's Base API offers comprehensive onchain wallet data coverage with 8000+ DeFi protocols tracked, real-time updates, and enterprise-grade reliability. We provide enriched data with context, not just raw blockchain data, making it easier for developers to build sophisticated consumer applications.
Getting started is simple:
- Sign up by filling out a form,
- Get your API key by email,
- Make your first API call using our interactive playground,
- Follow our documentation and guides to integrate Zerion API into your app.
You can be up and running in no time.
Rate limits vary by plan. You can check out the rate limits for different tiers in the pricing. Enterprise customers get custom rate limits based on their needs. Also, keep in mind that with Zerion API, one call can fetch data across all supported chains in addition to Base.
Zerion API provides real-time data with sub-second latency for critical endpoints like prices and balances.
Zerion API maintains 99.9% uptime with enterprise-grade infrastructure. Our infrastructure is designed to handle high-volume production workloads.
Zerion API offers comprehensive support including detailed documentation, code examples, interactive playground, community Discord, and email support. The Enterprise plan include priority support with dedicated account management.
Yes, Zerion API is designed for commercial use. All paid plans include commercial usage rights. We serve wallets, fintech companies, trading platforms, portfolio trackers, and DeFi protocols. Enterprise plans offer additional terms for mission-critical applications.
Yes, Zerion API offers webhook subscriptions for real-time notifications on wallet activities, price changes, and other events. You can set custom filters and receive instant notifications via HTTP callbacks to your application endpoints. You can also use webhooks to trigger call to other endpoints only when a when a new transaction occured.
Yes, with Zerion API you can fetch historical data including past transactions with prices.
Still have questions?
Can't find the answer you're looking for? Our support team is here to help.
