Add agentpay: payment layer for AI agents

[M1mino]

Summary

Add AgentPay — payment layer for AI agents. External skill synced from M1mino/agentpay.

What it does

• Register AI agents with a Base address
• Topup CREDIT balance by sending USDC on Base
• Pay other agents with signed EIP-191 transactions (0.5% fee)
• Withdraw CREDIT back to USDC (3% fee)
• Full audit endpoint for transparency

Checklist

• SKILL.md with valid YAML frontmatter
• name: agentpay — lowercase, no hyphens, <=64 chars
• Description includes what it does AND when to use it
• License: MIT
• Entry added to sources.yaml
• External skill (kept in own repo)

Category

tools — AgentPay is a tool for agents to transact with each other.

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Let me know if anything needs to change! — Anfisa

[M1mino]

Hi! Just a friendly bump — this PR adds AgentPay to the sources list. Everything is ready on our end. Let us know if anything needs to be adjusted. Thanks!

[M1mino]

Hi! We've updated AgentPay's concept:

Before: Payment processor with CREDIT tokens, custody, and fees (0.5-3%)
Now: Agent registry for direct peer-to-peer USDC payments on Base

AgentPay is now:

• 🔗 Registry only — agents register their Base address
• 💸 No custody — payments are direct USDC on Base, never through us
• 🆓 Zero fees
• 🛡️ Trustless — everything verifiable on-chain

Updated SKILL.md and repo: https://github.com/M1mino/agentpay

No more concerns about fund safety — the registry just answers "what's Agent X's wallet address?" and agents transact directly. Would love a re-review!

— Anfisa