sell

Implement the x402 payment protocol on Solana to monetize HTTP APIs with USDC.

9|2|Updated Feb 23, 2026
One-click install
npx skills add https://github.com/AetherCore-Dev/ag402 --skill sell-aethercore-dev
Or copy as Structured Prompt for Agent
Please help me install this Agent Skill.
Skill: sell
Source: https://github.com/AetherCore-Dev/ag402/tree/main/.claude/skills/sell
Command: npx skills add https://github.com/AetherCore-Dev/ag402 --skill sell-aethercore-dev

SYSTEM DOCUMENTATION & REQUIREMENTS

What problem does it solve?

This Skill enables users to easily transform any existing HTTP API into a paid service, automatically handling per-request payments using the x402 protocol on Solana with USDC.

Core Features & Use Cases

  • API Monetization: Turn any web service into a revenue-generating API.
  • Payment Gateway: Acts as a reverse proxy, gating access with a 402 Payment Required response until payment is confirmed.
  • Zero Code Changes: Buyers and sellers require no modifications to their existing codebases.
  • Use Case: You have a powerful AI model accessible via an API. Use this Skill to set a price per call and automatically collect USDC payments from users who access your model through the generated gateway.

Quick Start

Use the sell skill to set up a paid API for your local service running on port 8000, charging $0.01 per call and receiving payments to your Solana wallet address.

Frequently Asked Questions about sell

High-intent search queries and answers about installing and using this skill.

FAQPage Schema
How do I monetize an HTTP API with Solana USDC payments?

You can monetize an HTTP API by setting up this payment gateway as a reverse proxy. It enforces the x402 protocol on Solana, returning a 402 Payment Required response until USDC payment is confirmed per request.

Does API monetization with the x402 protocol require modifying my existing codebase?

No code changes are required for buyers or sellers to enable API monetization. The gateway functions as a reverse proxy, intercepting requests and verifying USDC payments on Solana without modifying your underlying service logic.

How do I set a price per call and configure my Solana wallet for API sales?

You configure the price per call and integrate your Solana wallet address during gateway setup. The skill handles price configuration and automated payment verification before forwarding requests to your local, Docker, or remote deployment.

What deployment options are supported for hosting an x402 payment gateway?

The x402 payment gateway supports local, Docker, and remote deployments. This allows you to gate API access and collect USDC payments regardless of whether your service is running locally or on a remote server.

Can I test API sales and USDC payment verification before production?

Yes, you can test API sales before production. The gateway includes test and production modes, allowing you to safely verify x402 payment enforcement and Solana USDC transaction logic without charging real funds.