World Chain API: Wallet Data, Tokens, NFTs, and More
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Complete World Chain 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 World Chain 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
World Chain Network Snapshot
World Chain is an EVM-compatible network focused on scalable onchain experiences. It's permissionless, open source and created for community governance. Build World Chain apps with Zerion API, which provides a unified read layer to pull wallet data, tokens, transactions, NFT, and DeFi positions in one schema.
Key features
- EVM compatibility and familiar tooling
- Unified **/positions** endpoint across protocols and NFTs
- Part of Optimism's Superchain
- Prioritizes real humans verified with Orb
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
Supports Base and all other chains — one call does it all.
Ideal for wallets, trackers, fintech, AI agents, and more.
Zerion API requires no nodes or infrastructure from your side.
Only fetch portfolio data when there are new transactions.
Fetch a full portfolio (tokens, DeFi, NFTs) from one endpoint.
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
Use **/positions** to retrieve normalized DeFi and NFT holdings. The endpoint resolves protocol-specific data into a consistent structure so your product can render a complete portfolio.
Yes. Combine **/positions** with **/transactions** for a full picture of holdings plus recent actions. Add token metadata and prices to compute valuations and show intuitive labels.
No. Zerion runs the infrastructure. You rely on our read endpoints while we handle node connectivity, indexing, and caching.
Yes. The unified schema ensures the same integration works across EVM chains. You can expand multi-chain coverage with minimal code changes.
Create a dev key for Zerion API, select a known address, call **/positions** to populate holdings, then wire up **/transactions** and token metadata for a polished MVP.
Still have questions?
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