Enterprise grade RPC endpoints
Optimize for uptime, speed and cross-chain operation.
Advanced health checks and load balancing systems maximize cross-network uptime.
Web3 RPC API supports 15 chains.
Ethereum
BNB Chain
Polygon
Optimism
Arbitrum
Gnosis
Avalanche
ZKsync
Base
Linea
Unichain
Sonic
Solana
Cronos
Monad
1inch Business is built for faster workflows
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.
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.
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Support
Answers to common questions and 24/7 support regardless of subscription.