X402 Api

This connects Claude to 22 marketing and content APIs that bill you per request in USDC on Base using the x402 payment protocol. Instead of managing API keys and subscription tiers, you pay directly for each call with stablecoins. The x402 standard embeds payment signatures in HTTP headers, so Claude can make a request, get a 402 response with pricing, sign a payment proof, and retry with credentials attached. It's useful if you want Claude to access paywalled marketing tools or content APIs without pre-funding accounts, or if you're building agents that need to spend money autonomously on external services. The payment flow is crypto native but feels like normal HTTP once configured.