Web3 Data APIs & Infrastructure

Moralis provides a comprehensive suite of blockchain data APIs that enable developers to build decentralized application frontends with wallet integration, real-time blockchain data access, and multi-chain support. The platform eliminates the complexity of direct blockchain integration by providing unified, developer-friendly REST APIs for accessing wallet balances, transaction histories, token data, NFT information, and DeFi protocol metrics.

Core API Suite

Wallet API

Access comprehensive wallet data across 50+ blockchains through unified endpoints. Fetch wallet balances, complete transaction history, NFT holdings, token portfolios, and real-time wallet activity with single API calls. All data is decoded and enriched with human-readable labels, perfect for building portfolio trackers and wallet interfaces.

Token API

Access token balances, transfers, metadata, holder information, and liquidity data across all major blockchains. Query ERC-20 token data, track token swap events from DEXs, and access real-time token holder analytics. Essential for trading dashboards and DeFi application frontends.

NFT API

Retrieve NFT ownership, metadata, collection statistics, and transfer history at scale. The API handles metadata resolution from both on-chain and IPFS sources, provides floor prices and trading volumes, and aggregates marketplace data from OpenSea, Rarible, and other platforms.

Price API

Get real-time and historical cryptocurrency price data with OHLCV (Open, High, Low, Close, Volume) format. Access cross-chain pricing with unified normalization, trading volume metrics, and multi-asset portfolio valuation. Critical for displaying accurate market data in dApp interfaces.

DeFi API

Access liquidity pool data, user positions in DeFi protocols, protocol-level TVL metrics, and yield farming information across major DEXs. Query swap events, track staking rewards, and calculate impermanent loss for comprehensive DeFi dashboards.

Moralis Streams

Monitor blockchain events in real-time with guaranteed delivery via webhooks. Track wallet addresses and smart contract events across multiple chains simultaneously with sub-second latency. The platform has delivered over 2.5 billion events with 100% delivery guarantees, automatic retry mechanisms, and disaster recovery.

Frontend Development Integration

All APIs are designed for seamless integration with React, Vue, Next.js, and other modern frontend frameworks. Compatible with standard Web3 libraries including Ethers.js, Web3.js, Viem, and wagmi. The unified API structure eliminates the need to integrate with multiple chain-specific solutions, providing consistent data formats across all 50+ supported blockchains.

Developer Experience

Moralis APIs return normalized, decoded JSON data ready for immediate display in user interfaces. No manual parsing of raw transaction data or decoding of contract events required. The platform handles all blockchain complexity including multi-chain coordination, metadata resolution, and data enrichment.

Use Cases

Powers wallet applications, portfolio trackers, NFT marketplaces, DeFi dashboards, trading platforms, analytics tools, and any decentralized application requiring comprehensive blockchain data access. Major wallets, exchanges, and Web3 products rely on Moralis infrastructure to provide users with accurate, real-time blockchain information.