What this skill does
Build internet-native payments with the x402 open protocol - HTTP 402 Payment Required for on-chain micropayments with no accounts or API keys. Use when developing paid APIs, paywalled content, AI agent payment flows, or MCP tools that charge per call. Covers the TypeScript, Python, and Go SDKs across EVM, Solana, Stellar, Aptos, NEAR, and XRPL.
x402-development is part of the Developer Tools category — developer tools that help your agent write, review, debug, and ship code. You can install it on its own or alongside other developer tools skills from the OpenClaw catalog.
How to install x402-development
The easiest path is via the OpenClaw Easy desktop app — one click, no terminal required:
- Download OpenClaw Easy for macOS or Windows (free, one-click installer, ~30 seconds).
- Open the in-app Skills panel.
- Search for
x402-developmentand click Install. - The skill activates automatically when an incoming message matches its description.
Install from the command line
If you already run the OpenClaw CLI, add x402-development with a single command:
openclaw skills add x402-development
This pulls x402-development from ClawHub and installs it into ~/.openclaw/skills/x402-development/. Restart the OpenClaw gateway afterwards so the new skill is discovered.
How to use x402-development
Once installed, x402-development activates on its own: when an incoming message on WhatsApp, Telegram, Slack, Discord, Feishu or Line matches the skill's description, your OpenClaw agent loads it and runs the workflow. You can also trigger it explicitly by describing the task in chat. No extra configuration is required after install.
Manual install (advanced)
If you prefer manual installation:
- Click the Download .zip button above to grab
x402-development-0.11.1.zipdirectly from our S3 mirror. - Unzip into
~/.openclaw/skills/x402-development/(create the directory if it does not exist). - Restart OpenClaw Easy (or the OpenClaw CLI gateway) so the new skill is discovered.
Frequently asked questions
How do I install x402-development?
Install x402-development in the OpenClaw Easy desktop app by opening the Skills panel, searching for x402-development, and clicking Install. From a terminal you can run: openclaw skills add x402-development. Either way the skill is placed in ~/.openclaw/skills/x402-development/.
Is x402-development free?
Yes. x402-development is free and open-source, distributed under the Apache-2.0 license through ClawHub. No account or payment is required to download or run it.
What does x402-development do?
Build internet-native payments with the x402 open protocol - HTTP 402 Payment Required for on-chain micropayments with no accounts or API keys.
Related: more developer tools skills
If x402-development looks useful, you may also want to check out other developer tools skills in the OpenClaw catalog:
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Free, open-source · Apache-2.0 · Works with Claude, ChatGPT, Gemini, or local Ollama models