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docs: add web3id.xyz as a real, working x402 example #9

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8 changes: 8 additions & 0 deletions packages/x402-proxy/README.md
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Expand Up @@ -59,7 +59,15 @@ $ npx x402-proxy --protocol mpp \

# Pipe-safe
$ npx x402-proxy https://api.example.com/data | jq '.results'

# Real x402 service (pays per call in USDC on Base): live crypto market data
$ npx x402-proxy https://web3id.xyz/crypto/top
$ npx x402-proxy "https://web3id.xyz/crypto/price?ids=bitcoin,ethereum"
$ npx x402-proxy https://web3id.xyz/crypto/fear-greed
# Free tier (no payment): try before you pay
$ curl -s https://web3id.xyz/crypto/price?ids=bitcoin
```
See [web3id.xyz](https://web3id.xyz) for the full endpoint catalog (359 market-intelligence endpoints).

## Commands

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