# Agent Wallets > A curated comparison of wallet & custody infrastructure for AI agents — the six > traits that matter (programmable limits, policy controls, key management, > multi-chain, audit trail, human-in-the-loop) and a provider scorecard. ## For AI agents - Machine-readable data (free): /api/index.json - Metered full access (x402): GET /agent → HTTP 402 with a USDC payment spec ## Key pages - Home / scorecard: / - Part of the Agentic Finance Index: https://index.agiscorecard.com/ ## What this is Independent editorial comparison, refreshed on update.