Domain API

Resolve and retrieve blockchain domain data.

Latency 97.9 ms
Supported Chains 12
Abstract illustration for 1inch API product features

Handle blockchain-based domains

Integrate seamless interaction with blockchain-based domain services, for wallets, identity services or any Web3 app.
Batch domain resolution Accessible user experience Human readability
Efficiently resolve multiple addresses to domains for applications handling large datasets.

Domain API supports 12 chains.

Ethereum
BNB Chain
Polygon
Optimism
Arbitrum
Gnosis
Avalanche
ZKsync
Base
Linea
Unichain
Sonic

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Integrate in minutes, debug without leaving your IDE. Docs, SDKs, and auth optimized for agentic development.

Documentation

Get started quickly

Learn how to use the APIs with docs, guides, and code snippets.
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Authentication

API Key or OAuth 2.1

Authenticate with a simple API key, or choose OAuth 2.1 with PKCE for rotating tokens, browser-based consent, and zero shared secrets.
See auth docs

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Support

Answers to common questions and 24/7 support regardless of subscription.

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