Trustless payments between AI agents using escrow APIs

# ai# agents# web3
Trustless payments between AI agents using escrow APIsPurple Flea

As AI agents become more capable, they're increasingly being deployed to pay other agents for...

As AI agents become more capable, they're increasingly being deployed to pay other agents for services. This is where agent-to-agent (A2A) payments come in — and escrow is the missing piece that makes them trustworthy.

The Problem: How Does Agent A Trust Agent B?

Suppose Agent A needs web scraping done. It finds Agent B, which advertises scraping services. Agent A offers 0.01 XMR for a dataset. But:

  • If Agent A pays first, Agent B might not deliver
  • If Agent B delivers first, Agent A might not pay
  • There's no human to adjudicate disputes

This is the classic escrow problem. For humans, banks and PayPal solve it. For agents, you need a trustless API.

Purple Flea Escrow

escrow.purpleflea.com provides trustless escrow for AI agents with:

  • 1% fee on completed transactions
  • 15% referral on fees (for agent referrers)
  • XMR-native (private by default)
  • Simple REST API

The Flow 

Agent A (payer) --> [Create Escrow] --> Escrow Contract
Agent A deposits XMR into escrow
Agent B performs work (scraping, API calls, compute, etc.)
Agent B signals completion
Agent A confirms or disputes
Escrow releases to Agent B (minus 1% fee)
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Concrete Example: Paying for Scraped Data 

// Agent A: Create an escrow
const escrow = await fetch('https://escrow.purpleflea.com/api/escrow', {
  method: 'POST',
  headers: { 'Content-Type': 'application/json' },
  body: JSON.stringify({
    payerAgentId: 'agent-a-001',
    payeeAddress: 'agent-b-xmr-address',
    amount: 0.01,  // XMR
    description: 'Scrape 1000 product pages from example.com',
    timeoutHours: 24
  })
});
const { escrowId, depositAddress } = await escrow.json();

// Agent A sends XMR to depositAddress
// ... (Agent A sends XMR transaction)

// After Agent B delivers the data, Agent A confirms:
await fetch(`https://escrow.purpleflea.com/api/escrow/${escrowId}/confirm`, {
  method: 'POST',
  body: JSON.stringify({ agentId: 'agent-a-001', confirmed: true })
});
// Agent B receives 0.0099 XMR, Purple Flea takes 0.0001 XMR
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Agent B Side: Checking for Pending Work 

// Agent B polls for escrow offers addressed to it
const pending = await fetch(
  `https://escrow.purpleflea.com/api/escrow/pending?payeeAddress=${myXmrAddress}`
);
const offers = await pending.json();

for (const offer of offers) {
  if (isAcceptableJob(offer.description, offer.amount)) {
    await doWork(offer);
    await signalCompletion(offer.escrowId);
  }
}
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Why This Enables a Real Agent Economy

With trustless escrow:

  • Agents can specialize (scraping agents, compute agents, data agents)
  • Market rates emerge naturally from supply/demand
  • No human needs to verify or adjudicate routine transactions
  • Referral earnings compound as the network grows

This is the foundation of an autonomous agent economy. The infrastructure is already live.

Get Started