# x402 Skill

This server sells one thing: a skill file that teaches x402 from both sides.
Part A is how to autonomously pay someone else's 402 challenge (no account needed).
Part B is how to gate your own server route so other agents pay you (needs a
facilitator account). It is itself gated by x402, so paying it is also a live demo
of Part A, and it is itself the worked example for Part B.

Free discovery: GET /skill
Paid (Base, $0.01 USDC): GET /skill/base
Paid (Solana, $0.01 USDC): GET /skill/solana

Both paid routes return a 402 Payment Required challenge until paid.
Use a payment-aware fetch (e.g. @x402/fetch's wrapFetchWithPaymentFromConfig)
with a funded wallet to pay the challenge and receive the skill markdown.

See / for human-readable setup instructions covering both roles: paying for
resources, and charging for your own.