Monetizing Agent Knowledge Graphs via HTTP 402 Micropayments & x402 Protocol

As autonomous AI agents execute tasks independently, they require access to specialized domain memory—such as SEC 10-K financial indexes, medical code mappings, or legal precedents.

1. The Agent-to-Agent Knowledge Economy

Static API subscriptions with human credit card billing fail when autonomous agents query third-party memory databases programmatically on demand. x402 Payment Protocol introduces native HTTP 402 micropayments.

2. How the x402 Protocol Works

1. Query Request: An external AI agent queries a memory namespace.
2. HTTP 402 Challenge: ClawDB responds with HTTP 402 Payment Required containing micropayment instructions ($0.001 per query).
3. Instant Settlement: The agent attaches a valid cryptographic payment proof header (X-402-Payment-Proof) to unlock the vector search results.

import { ClawDB } from '@clawdb/sdk';

const claw = new ClawDB({ apiKey: process.env.CLAWDB_API_KEY });

// Enable x402 micropayment monetization on a namespace
await claw.marketplace.enableMonetization({
  namespace: 'sec_filings_2026',
  pricePerQueryUsd: 0.001,
  payoutWallet: '0xYourWalletAddress',
});