Buildx402
Buildx402
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x402 Reality Check

What actually supports x402 right now?

The Truth

⚠️ Current Reality:

Most APIs don't support x402 yet - including OpenAI, Google, etc.

✅ What Actually Works:

  • Some newer APIs built specifically for x402
  • Wrapper services that bridge traditional APIs to x402
  • x402-native services designed from the ground up
  • Your own custom APIs you build

How It Would Work (If OpenAI Supported It)

# Your agent calls OpenAI
GET https://api.openai.com/v1/chat/completions
# OpenAI responds with HTTP 402
Status: 402 Payment Required
X-Payment-Amount: 0.10
X-Payment-Currency: USDC
X-Payment-Recipient: 0xOpenAIWallet...
# Your agent automatically pays
Transfer 0.10 USDC → Transaction: 0xabc123...
# Agent retries with payment proof
X-Payment-Proof: 0xabc123...
# OpenAI verifies and returns response
200 OK + AI Response

Current Solutions (Workarounds)

Option 1: x402-Compatible Wrapper Services

Some services act as a bridge between you and traditional APIs.

You → x402 Wrapper → OpenAI
(pay crypto) (has API key)

Wrapper service has OpenAI API key, you pay wrapper with x402, they call OpenAI for you.

Option 2: x402-Native Services

New services built from scratch with x402 support.

  • AI services designed for crypto payments
  • Data services with x402 support
  • New APIs built with x402 in mind

Option 3: Build Your Own

Create APIs that accept x402 payments from agents.

You can build services that use x402, and your agents can pay for them!

Option 4: Wait for Adoption

As x402 grows, more APIs will add support.

Your framework is ready - just point it to x402-compatible APIs when they're available!

What You CAN Use x402 For Right Now

✅ x402-Native Services

New services built specifically for x402 payments

✅ Your Own APIs

Build APIs that accept x402 payments from agents

✅ Wrapper Services

Services that bridge traditional APIs to x402

✅ Data Services

Some data providers support x402

The Bottom Line

Framework is ready - Code works perfectly
⚠️
Most APIs don't support x402 yet - Including OpenAI
Some services DO support it - You can use those now
🚀
More will add support over time - Framework is ready when they do

The Vision:

As x402 protocol grows in adoption, more APIs will add support. Your framework is ready - just point agents to x402-compatible APIs when they're available!