x402: Why MemoClaw Has No API Keys


Most APIs follow the same pattern: sign up, verify email, create a project, generate an API key, set rate limits, manage billing. MemoClaw skips all of that.

How x402 Works

The x402 protocol turns HTTP payments into a first-class concept. Here’s the flow:

  1. You make an API request
  2. If payment is required, the server returns 402 Payment Required with pricing info
  3. Your client signs a USDC payment on Base
  4. The request is retried with the payment proof
  5. The server verifies and processes the request

Your wallet address is your identity. No API key to rotate, no account to create, no billing page to check.

Why This Matters for Agents

AI agents are terrible at managing credentials. They can’t sign up for accounts, verify emails, or navigate billing dashboards. But they can sign transactions.

With x402, an agent can start using MemoClaw immediately — just point it at the API and give it a wallet. The payment happens automatically, per-request, with no setup.

The Free Tier

Every wallet gets 100 free API calls. No payment required, no wallet signing needed. Just start making requests. When you hit the limit, the x402 flow kicks in automatically.

Cost Transparency

Every paid request costs exactly what it costs — $0.005 for a store or recall. No monthly minimums, no overage charges, no surprise bills. You pay for what you use, per request.