hs58
MCP server for the DRAIN payment protocol. Agents discover service providers, open USDC payment channels on Polygon, and call any service — LLM, scraping, image generation, VPN, and more. Pay per use, no API keys, no subscriptions.
Why use this skill?
Integrate the hs58 skill to access LLMs, scraping, and image gen via the DRAIN payment protocol. No subscriptions, no keys, just pay-per-use via Polygon.
Install via CLI (Recommended)
clawhub install openclaw/skills/skills/kimbo128/hs58What This Skill Does
The hs58 skill provides a robust gateway to the DRAIN protocol, a decentralized, pay-per-use marketplace for digital services. By integrating this skill, your OpenClaw agent can discover, connect to, and pay for a vast array of services ranging from LLM inference and web scraping to image generation and VPN leases—all without traditional API keys, subscriptions, or credit card dependencies. The protocol operates on the Polygon blockchain, utilizing USDC for payments via secure, smart-contract-enforced channels. Because the user’s private key is used locally solely for signing vouchers, it never leaves the local environment, ensuring that spending is strictly limited to the user-defined deposit per channel. This makes hs58 an ideal utility for agents needing elastic, on-demand compute and data services.
Installation
To begin using the DRAIN protocol with OpenClaw, ensure you have Node.js installed on your system. Run the command npm install -g drain-mcp to install the required MCP server. Once installed, configure your OpenClaw environment by adding the drain-mcp server to your mcpServers configuration, ensuring you provide a secure Polygon wallet private key in the DRAIN_PRIVATE_KEY environment variable. It is highly recommended to use a dedicated wallet pre-funded with at least 1-5 USDC for service payments and a small amount of POL for gas fees.
Use Cases
- Dynamic LLM Switching: Rotate between various LLM providers (GPT-4, Claude, etc.) based on cost-efficiency or specific capability needs without maintaining multiple API subscriptions.
- Scalable Data Extraction: Utilize specialized scraping providers to harvest web data for research projects without managing complex auth or recurring billing.
- Media Production: Access high-end image and audio generation services on a micro-transaction basis.
- Private Networking: Lease VPN access through DRAIN providers for secure, per-request or per-session private browsing directly from your agent.
Example Prompts
- "Find me a scraping provider that can extract financial data from a company's 'About' page, then retrieve their documentation and help me format the request."
- "List my active DRAIN payment channels and identify if any have expired so I can close them and reclaim my USDC."
- "I need to generate a high-quality product image. Search for image generation providers, find the cheapest one, and use their documentation to construct a valid request."
Tips & Limitations
- Always Check Docs: The DRAIN protocol's greatest strength is its flexibility. Because providers vary, always call
drain_provider_infobefore interacting with a new service to understand its unique payload structure. - Wallet Hygiene: Never use your primary wallet containing significant assets. Use a dedicated, low-balance hot wallet for DRAIN operations.
- Channel Management: Be proactive about
drain_close_channel. Once a channel reaches its expiry, the unspent USDC remains locked in the smart contract until you trigger the closing process. - Pre-funding: Keep your channel deposits modest. You can always add more, but start small to manage your risk effectively.
Metadata
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Find the right skillPaste this into your clawhub.json to enable this plugin.
{
"plugins": {
"official-kimbo128-hs58": {
"enabled": true,
"auto_update": true
}
}
}Tags(AI)
Flags: network-access, external-api