Frames Registry Pay-per-call API gateway for AI agents. 10 services available via the x402 payment protocol. No API keys, no subscriptions — just pay per request with crypto. Base URL Prerequisites A crypto wallet funded with USDC is required to use paid endpoints. Two options: - AgentWallet (recommended for agents) — server-side wallet that handles 402 detection, payment signing, and retries automatically via a single call. No private key management needed on your side. - Self-managed wallet — any EVM wallet (Base) or Solana wallet with USDC. You sign x402 payment headers directly. Quick Sta…