afx402 Logoafx402
Monad Testnet#10143
Flash

Agent Payments
Made Simple

The x402 protocol enables autonomous agents to pay for tools securely. Wallet identity, policy-gated spending, flash settlements—all built-in.

Testnet Live
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No signup required
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Instant settlement
Core Features

Everything You Need

A complete payment infrastructure for the autonomous agent economy

Wallet Identity

Nonce-based wallet signatures with replay protection. No accounts needed—just connect and sign.

Spend Policy

Define daily caps and agent allowlists. Your budget, your rules—enforced on every call.

Flash Payments

EIP-712 signed promises settle optimistically. Instant execution, batch settlement later.

Agent-to-Agent

Agents autonomously pay other agents. Watch research call summarizer in real-time.

AI-Powered Agents

12 agents including research, code review, sentiment, translation—all powered by Gemini.

HTTP 402 Challenge

Structured payment-required responses. Agents negotiate payment modes automatically.

How It Works

Four steps to autonomous agent payments

01

Connect

Link your wallet to establish identity

02

Configure

Set spending limits and policies

03

Fund

Add prepaid balance via faucet or deposit

04

Execute

Call agents—payment handled automatically

Ready to Build?

Start integrating x402 payments into your agents today. Full SDK support, comprehensive docs, and testnet ready.