A developer-friendly skill for AI agents to make and receive instant stablecoin payments using the x402 open standard.
Install & Download
1. ClawHub CLI
The fastest way to install a skill directly from the registry.
npx clawhub@latest install xclaw02
2. Manual Installation
Copy the skill folder to one of these locations
~/.openclaw/skills/ <project>/skills/ Priority: Workspace > Local > Bundled
3. Prompt Installation
Copy this prompt to OpenClaw to install it automatically.
Help me install xclaw02 using Clawhub. If Clawhub is not installed, install it first (npm i -g clawhub).
Prefer to download?
Get the raw skill files in a ZIP archive.
What is xClaw02?
xClaw02 is a specialized tool designed for the agentic web, providing a seamless way for AI agents to interact with the x402 protocol. By utilizing this addition to your collection of Openclaw Skills, agents can handle 402 Payment Required HTTP responses by paying for resources with USDC on the Base network. It bridges the gap between AI autonomy and the traditional pay-per-use economy.
Built by Primer, this skill simplifies the complex process of wallet management and on-chain settlement. Whether your agent needs to access a paid API or you want to monetize your own service, xClaw02 provides the CLI and SDK components necessary to implement robust payment workflows in Node.js or Python environments.
xClaw02 Use Cases
- Resolving 402 Payment Required errors when accessing premium web resources.
- Automating payments for API access using USDC stablecoins.
- Creating and managing secure agent wallets directly from the CLI.
- Checking token balances and managing transaction limits for AI-driven purchases.
- Implementing paywalls for your own agent-ready APIs using provided middleware.
How xClaw02 Works
- The agent triggers a request to a URL and detects a 402 Payment Required status code.
- Using the probe command, the agent retrieves the cost, recipient, and network details from the response headers.
- The agent checks its local wallet balance and prompts the user for payment confirmation if required.
- A payment signature is generated and processed through a facilitator for on-chain settlement.
- The agent retries the original HTTP request with the required payment headers to successfully access the data.
xClaw02 Setup
To begin using this skill within your Openclaw Skills environment, choose your preferred runtime:
Node.js Installation
npx xclaw02 openclaw init
Python Installation
pip install xclaw02
xclaw02 openclaw init
After installation, you will need to fund your generated wallet address with USDC on the Base network to enable live payments.
xClaw02 Data Schema & Taxonomy
The skill organizes its local data and environment settings as follows:
| Component | Detail |
|---|---|
| Config Path | ~/.openclaw/skills/xclaw02/ |
| Key Variable | XCLAW02_PRIVATE_KEY (0x + 64 hex characters) |
| Default Network | eip155:8453 (Base) |
| Metadata | Requires node, npx, python3, or pip binary dependencies |
| Supported Assets | Primarily USDC for transactions across EVM chains |
xClaw02 Advanced Features
- Gasless transactions for payers, where the facilitator handles the network gas fees.
- Comprehensive middleware support for Express.js and FastAPI to build paid endpoints.
- Interoperability with multiple facilitators including Primer, Coinbase, and x402.org.
- Spending limits via the max-amount flag to prevent unauthorized overspending.
- Support for a wide range of EVM-compatible networks including Arbitrum, Optimism, and Polygon.
SKILL.md
Loading
Related Openclaw Skills
Primattography Resolve Master
An expert-level engineering skill for developing custom DCTL transforms and professional color science workflows within DaVinci Resolve Studio.
CSGO Skin Intelligent Monitor
An AI-powered monitoring and analysis system for CSGO skins that tracks prices, volatility, and platform arbitrage opportunities via the CSQAQ API.
PriceWorld
PriceWorld provides real-time, verified pricing intelligence across web hosting, SaaS, and financial services to reveal true costs beyond marketing claims.
Zoho Support Integration
A powerful integration that connects Zoho Desk with OpenClaw to ingest historical tickets and automate the generation of support draft replies.
x402 Payment Protocol
A protocol for instant, gasless stablecoin payments over HTTP using the 402 Payment Required status code.
Crypto Scam Detector
A high-performance, database-first security tool for identifying cryptocurrency scams and malicious addresses instantly.
Featured*
