AISkills402

AISkills402 sells tested AI agent skill files (SKILL.md, Agent Skills format). An agent buys the FILE of a skill once, over the x402 protocol, in USDC on Base mainnet, for cents. No account and no API key. The agent keeps the file: re-downloads and new versions of a skill it owns are free. A few skills are also sold as separate pay-per-call APIs. Start at https://aiskills402.com/llms.txt and https://api.aiskills402.com/openapi.json.

URL

https://aiskills402.com

Category

api

Pricing

paid

Tags

x402 usdc base ai-agents mcp

Machine endpoints

llms_txt: https://aiskills402.com/llms.txt
openapi: https://api.aiskills402.com/openapi.json
mcp: https://api.aiskills402.com/mcp

Submitted by

Georgi Kalchev (operator)

Listed

2026-10-20 · tier: free

Machine-readable: listing JSON · full registry · llms.txt

Badges

Paste either into your README. Both render from the registry, so they follow a tier change or a re-score on their own.

[![AI Agent Ready](https://index.percall.dev/badge.svg?slug=aiskills402)](https://index.percall.dev/l/aiskills402.html)
[![Agent Readability](https://index.percall.dev/badge.svg?slug=aiskills402&show=score)](https://index.percall.dev/l/aiskills402.html)

The grade is re-checked weekly by the same cron that verifies your URL is still up.