Code Agent (x402 v2)

Pay-per-request AI developer tools settled in USDC on Base via the x402 payment standard.

Live endpoints

URL	Purpose
https://code.mamenesia.com	Catalog + UI
https://code.mamenesia.com/service/tip-jar	$0.01 tip (lowest friction)
https://code.mamenesia.com/openapi.json	OpenAPI 3.0 with x-payment-info
https://code.mamenesia.com/.well-known/x402	Machine discovery
https://www.x402scan.com/server/code.mamenesia.com	x402scan listing

Quick pay flow

1. GET/POST https://code.mamenesia.com/service/tip-jar → HTTP 402
2. Send exact USDC on Base to payTo from the challenge
3. Retry with header X-Payment: <tx-hash>

Services

• tip-jar — $0.01
• summarize — $0.05
• generate-function / explain-code — $1
• generate-script — $2
• refactor-code / analyze-contract / generate-tutorial / audit-diff — $0.25–$3

Ecosystem

• PR: coinbase/x402#263
• Listing: Merit-Systems/x402scan#1045

No API keys. No accounts. Agents welcome.