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The Ultimate
Onchain Data API

Portfolio data across tokens, DeFi, and NFTs
Human-readable onchain activity feeds
Live & Historical prices for every token
Built for humans and AI Agents
View Docs
Trusted by great builders

50+ chains — in a few lines of code.

Ethereum logo
Ethereum
Arbitrum logo
Arbitrum
Optimism logo
Optimism
Base logo
Base
Polygon logo
Polygon
Avalanche logo
Avalanche
BNB Chain logo
BNB Chain
Solana logo
Solana
ZKsync logo
ZKsync
Blast logo
Blast
Bitcoin logo
Bitcoin
Flow logo
Flow
Linea logo
Linea
Scroll logo
Scroll
Zora logo
Zora
Metis logo
Metis
Ink logo
Ink
Fantom logo
Fantom
Berachain logo
Berachain
Mantle logo
Mantle
Arbitrum Nova logo
Arbitrum Nova
Taiko logo
Taiko
Gnosis logo
Gnosis
Celo logo
Celo
Unichain logo
Unichain
opBNB logo
opBNB
Mode logo
Mode
Story logo
Story
Abstract logo
Abstract
+21
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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.

Learn More

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.

Complete Portfolio Data

Surfaces every token balance held by an address.

Real-time balance updates
Coverage of every token from memecoins to bluechips
Token metadata and prices
View docs
tokens interface

Onchain Activity

Presents the onchain activity of specific address(s) in a simple descriptive summary.

Combined multi-chain views
Metadata on accounts, tokens, or NFTs involved
Filterable by chain, token, or type
View docs
account-timeline interface

Endless possibilities

Token prices for any token with an onchain market.

Real-time sourced price data
Price history with customizable timeframes
Liquidity, market cap, holders, and supply
View docs
token-prices interface
46
Chains Supported
3.8M+
Tokens with Historical Prices
3.9M+
DeFi Tokens (e.g., LP tokens)
67 Billion
Human-readable Transactions

Onchain information is disorganized and unreadable.

The quantity of onchain applications is increasing exponentially — no centralized entity will be able to organize everything.
To solve this problem, an open network of curators contribute to the Zapper Protocol — transforming onchain data and empowering builders with an easy to use API.

An open interpretation layer, built by you.

We've created powerful tools allowing anyone to easily contribute and make blockchains human-readable. No coding is required.

Transaction Interpretation

Transaction Interpreters are used on onchain transactions to translate them into human-readable output, and augment them with contextual, and often off-chain, information.

Position Interpretation

App Token Interpreters are used to index app-centric token balances for users. This can be loans, deposits, pools, etc... The majority of these tokens do not have a market price; rather, they are priced based on the tokens they are redeemable for.

Coming Soon

Powered by $ZAP

The ZAP token is central to the protocol 一 serving as an incentive to interpret onchain information and as a payment for accessing its data.

Be a part of the movement

Join our community, and help us make blockchains readable to everyone!
Get Started