Agent-Readable Payment Links
HTTP 402 • Payment Required
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Short Links

Turn complex payment URIs into shareable 402x.ai/abc123 links

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LLM-Friendly

JSON API designed for AI agents to parse and execute payments

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Status Tracking

Track pending, paid, and expired states with tx verification

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Multi-Chain

Ethereum, Bitcoin, Solana, Base, Arbitrum, and more

Create a payment link
POST /api/create
{
  "uri": "ethereum:0x1234...?value=1e18&chainId=8453",
  "merchant": "Coffee Shop"
}

→ { "url": "https://402x.ai/a8Fk2", ... }
Agent reads payment details
GET /api/a8Fk2

→ {
  "status": "pending",
  "payment": { "chain": "Base", "amount": "1.0", "token": "native" },
  "summary": "Payment for 1.0 native on Base to 0x1234...5678"
}
EIP-681 (Ethereum)
BIP-21 (Bitcoin)
Solana Pay

Built for Agentic Commerce

Payment infrastructure for AI agents, vaults, and autonomous transactions.

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