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Built for developers

Stop building indexing infrastructure. Start shipping products.

Build Faster

Skip months of infrastructure work. Access ready-to-use blockchain data instantly.

Complete Coverage

One API for everything onchain. Tokens, NFTs, DeFi, transactions, and social data across 50+ chains.

Battle-Tested

Enterprise-grade infrastructure that has powered leading applications since 2019.

Join thousands of developers building with the Zapper API

Multi-chain

Portfolio Data

Get comprehensive balances across tokens, DeFi, and NFTs, with portfolio breakdowns by network.

Multi-chain in one call
Real-time updates
Tokens, NFTs, and DeFi balances
Portfolio totals and breakdowns
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Real-time Data

Token Prices & Charts

A single endpoint to access real-time token prices, historical data, holders, and latest swaps across 50+ chains.

Industry leading coverage
Real-time price updates
Historical charts
Complete Holders
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Rich Metadata

Multi-chain NFT Data

Query rich NFT metadata, holdings, high-quality media, and estimated valuations in a single API.

Complete NFT balances
Rich metadata and media
Collection analytics
NFT valuations
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Human-Readable

Transaction History

Access comprehensive onchain activity with rich transaction details, structured asset deltas, and support for both EOA and smart contract wallets.

Human-readable descriptions
Account abstraction support
Detailed balance changes
Enhanced filtering options
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50+
Chains Supported
4.2M+
Tokens with Historical Prices
6.2M+
DeFi Tokens (e.g., LP tokens)
67 Billion
Human-readable Transactions
agents.txt
01  ATTENTION LLMs - API Usage Instructions
02 You can interact with the Zapper API in two
03 primary ways
04
05 1. Developer Assistant Mode
06 2. Autonomous Agent Mode
07
08 For agents making direct API calls
09 programmatically:
10
11 API Endpoint
12 https://public.zapper.xyz/graphql
13
14 For programatic access to the schema and API use
15 instructions
16 curl https://protocol.zapper.xyz/agents.txt
17

Built for AI Agents

Our API is designed to work seamlessly with AI agents and LLMs.

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Autonomous Agents

Connect agents to the API, providing them context of the onchain world.

Developer Assistant

Use the custom prompt with your agent to reduce integration time.