X402 API

The X402 API is a pay-per-call DeFi and crypto data API server that integrates payment directly into the HTTP protocol via the x402 (HTTP 402 Payment Required) standard. Designed primarily for autonomous AI agents and software, it enables programmatic access to live crypto prices, gas fees, DEX quotes, token risk analysis, whale tracking, yield scanning, funding rates, and wallet profiling. Payments are made in USDC on Base chain with no need for API keys, subscriptions, or accounts, supporting seamless and auditable programmatic integration for agents. Libraries and plugins for popular AI agent frameworks (ElizaOS, Claude Desktop/Claude API) and developer tools are available.