geld machen · x402 · Base USDC

x402 builder tools (HTML index)

Google-crawlable overview. Machine clients should use JSON discovery at /, /catalog.json, and /llms.txt.

Featured builders

• Bazaar readiness check — FREE /product/bazaar-check.json?url= (codes only) then $0.05 Fix-JSON /product/bazaar-check/report.json?url= (unpaid 402 → header_compliance + bazaar_schema_validation + cdp_discovery + fix_json) · HTML: https://crypto-sell-geldmachen.surge.sh/bazaar-check.html
• DeFi snapshot Base — $0.03 /product/defi-base-snapshot.json · HTML: https://crypto-sell-geldmachen.surge.sh/defi-base-snapshot.html
• Base allowance scan — $0.02 /product/base-allowance-scan.json · HTML: https://crypto-sell-geldmachen.surge.sh/base-allowance-scan.html
• Base tx explain — $0.02 /product/base-tx-explain.json · HTML: https://crypto-sell-geldmachen.surge.sh/base-tx-explain.html
• Phantom seller scan — $0.03 /product/phantom-seller-scan.json · HTML: https://crypto-sell-geldmachen.surge.sh/phantom-seller-scan.html

Pay with x402

Unpaid paid-resource GETs return HTTP 402 + PAYMENT-REQUIRED. Retry with PAYMENT-SIGNATURE after signing exact USDC on Base (eip155:8453).

curl -sS "https://geld-machen-x402.fly.dev/product/bazaar-check.json?url=https://www.x402.org"
# next: GET buy_url from that JSON (expect 402, $0.05)
curl -si "https://geld-machen-x402.fly.dev/product/bazaar-check/report.json?url=https://www.x402.org"
curl -si "https://geld-machen-x402.fly.dev/product/defi-base-snapshot.json"

Also

• Human Polygon USDT checkout: https://crypto-sell-geldmachen.surge.sh/
• Agents landing: https://crypto-sell-geldmachen.surge.sh/agents.html
• x402scan server: 907e879b-c456-4981-bdcc-9db4eb41f8a7
• GitHub: Umberto761/geld-machen-x402