AI code services.
Pay per request, not per seat.
Six live AI services from $0.005 to $3.00. Five more coming. No subscriptions, no API keys. Send a request, pay in USDC, get your result. The payment is the auth.
How x402 Works
Three steps. No API keys. No OAuth. No billing portal.
Send a Request
POST your code to any endpoint. No payment? Get a 402 with the exact price.
Pay with USDC
Transfer USDC on Base L2. Instant, low-fee, on-chain. Your AI agent handles it.
Get Your Result
Retry with the receipt. Verified on-chain, result delivered. No accounts needed.
Six Services, One Protocol
Six live services. Five more in development. Every request settled in USDC on Base L2.
Explain Code
Clear explanation of what code does, how it works, and why.
Debug Assist
Find bugs, explain errors, suggest fixes with severity ratings.
Code Review
Security, performance, architecture review with quality score.
Security Audit
OWASP Top 10, CVSS scores, attack scenarios, remediation.
Automation Script
Production-ready scripts from requirements. Complete with docs.
MCP Blueprint
Full MCP server architecture, schemas, and deployment guide.
Web Reader
Fetch any URL and return clean readable text. Zero AI cost, flat rate.
Document Extractor
Extract titles, facts, entities, and action items from any document.
Image Analyzer
Analyze images: objects, text, charts, diagrams. Transcribes visible text.
Session Summarizer
Summarize conversation transcripts into decisions, actions, and open questions.
Content Summarizer
Summarize articles and long-form text into key takeaways.
Try It Free
Paste code and get an instant explanation. 5 free requests per day.
Your explanation will appear here...
Powered by Claude Haiku · 500 character limit · 5 requests remaining today
The Human Layer of the x402 Economy
x402 is backed by the Linux Foundation with 50+ member organizations including Coinbase, Cloudflare, Stripe, Visa, and AWS. We build the services that run on it.
No API Keys
The payment is the auth. No credential management.
Agent-Native
Built for AI agents. Discover, pay, consume -- no human needed.
On-Chain Settlement
Every payment on Base L2. Transparent, instant, final.
Ready to try AI code analysis?
No signup. Paste code, get answers. Start with 5 free requests.
Try the Demo