Monad Testnet API: Build on The Fastest EVM L1
Complete Monad Testnet 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
%201.png)
%201.png)
Why Choose Our Monad Testnet 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
Monad Testnet Network Snapshot
Monad is a fully EVM-compatible high-performance Layer 1 testnet. Monad Testnet mimics the upcoming Monad mainnet’s execution capabilities, allowing developers and users to build, test, and interact with dApps in a realistic environment before mainnet launch.
Key features
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.
%201.svg)
helped validate key wallet use-cases well before Warpcast Wallet even existed."
%202.svg)
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
Call the /positions endpoint with the wallet address and specify Monad’s chain ID. Zerion API returns normalized balances across native MON tokens, ERC-20 tokens, and bridged assets, just like on Ethereum or other EVM chains.
Yes. Zerion API’s /transactions endpoint supports Monad Testnet, returning decoded activity such as transfers, swaps, and contract interactions. This saves you from parsing raw logs and receipts.
Zerion API can fetch NFT balances and metadata via the /nft-positions endpoint. This includes token IDs, images, and collection information, making it possible to display Monad NFTs in your app just like Ethereum or Polygon NFTs.
Zerion API enriches Monad wallet balances with real-time market pricing. By calling /portfolio, you get wallet holdings on Monad with USD values, providing a unified portfolio view across testnet and mainnet chains.
No. Zerion API handles the indexing of Monad Testnet. Developers can query balances, transactions, tokens, and NFTs directly without setting up infrastructure — allowing faster prototyping of dApps and wallets.
Still have questions?
Can't find the answer you're looking for? Our support team is here to help.
