An agent-native suite of 62 pay-per-call utility and data endpoints powered by x402 payments on the Base network, removing the need for API keys or user accounts.
Install & Download
1. ClawHub CLI
The fastest way to install a skill directly from the registry.
npx clawhub@latest install webbersites-data-api
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 webbersites-data-api 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 WebberSites x402 Data API?
The WebberSites x402 Data API is a developer-centric suite of 62 utility endpoints tailored specifically for autonomous agents. By utilizing the x402 standard over the Base network, agents can execute paid tasks directly without traditional API keys, credit cards, or user accounts. The system issues a 402 Payment Required response with signed payment parameters, allowing agents to pay fractions of a cent ($0.001 to $0.05) in USDC and complete the request securely.
This setup transforms an agent's Web3 wallet into its durable identity. The API features high-precision calculations, persistent memory across sessions, website analytics, and lightweight LLM inference. Integrating this skill with Openclaw Skills enables workflows where execution cost is dynamically paid by the agent's hot wallet.
WebberSites x402 Data API Use Cases
- Executing lightweight LLM inference (Claude Haiku) on-demand without provisioning a personal API key.
- Persisting cross-session memory, task lists, or structured database rows securely owned by the agent's EVM wallet.
- Running accurate financial, mathematical, or date-time calculations that standard LLM architectures struggle to solve natively.
- Monitoring application endpoints, checking latency, and diagnosing SSL or DNS errors on scheduled cron jobs.
- Auditing website platforms, scraping page contents into clean Markdown, or performing SEO audits dynamically.
How WebberSites x402 Data API Works
- Discovery: The agent queries an endpoint at
https://api.webbersites.comor accesses the live OpenAPI catalog. - Challenge Response: The API returns a
402 Payment Requiredstatus containing cryptographic, signed payment details. - Payment Execution: The agent's wallet (managed via an Openclaw Skills workflow or the MCP server) signs and processes a gasless USDC transaction on the Base network using EIP-3009.
- Request Verification: The agent resubmits the request, attaching the payment signature in the
X-PAYMENTheader. - Execution & Return: The server verifies the payment, processes the requested utility, and delivers the structured payload back to the agent.
WebberSites x402 Data API Setup
To integrate with Openclaw Skills, you can deploy the tools using the Model Context Protocol (MCP) or coordinate with a wallet skill.
Using the MCP Server
Set your EVM private key for a dedicated hot wallet holding a small amount of USDC on Base, and run the server:
export EVM_PRIVATE_KEY="your_private_key_here"
npx -y webbersites-x402-mcp
Note: If no private key is provided, the tool starts in quote mode, displaying execution prices without processing requests.
Using agentcash-wallet
Ensure the agentcash-wallet skill is active on your host. This skill naturally handles the discovery, signature, and payment execution cycle for any standard x402 endpoint.
WebberSites x402 Data API Data Schema & Taxonomy
The WebberSites Data API structures its endpoints into functional spaces. Data stored via the scratchpad or store endpoints is mapped strictly to the paying EVM address.
| Endpoint Category | Method / Path | Primary Schema / Input Parameters |
|---|---|---|
| LLM Inference | POST /api/llm |
{ "prompt": "string", "system": "string" } |
| Scratchpad | POST /api/scratchpad/{name} |
Text or JSON payload (up to 64KB per file) |
| Datastore | POST /api/store/{collection} |
JSON objects representing structured database rows |
| Uptime Diagnostics | GET /api/uptime/report?url=... |
Returns waterfall, TLS certificate days, and network breakdown |
| Precision Math | POST /api/calc/finance |
JSON with parameters for NPV, IRR, amortization, or BigInt conversions |
Note: Storage lifetime is extended with activity. Reads keep the scratchpad/store active for 30 days, while write operations extend it for 60 days.
WebberSites x402 Data API Advanced Features
- Durable Wallet Identity: Eliminates accounts and keys; the paying EVM address acts as the secure, global key to retrieve stored data from any machine.
- Gasless Transactions: Built on Base network using the EIP-3009 standard, ensuring agents pay exactly the quoted USDC price without needing local Ether for gas.
- Loyalty Reward Multipliers: Any transaction exceeding $0.001 opens a 24-hour promotional window, reducing the cost of all $0.001 endpoints to $0.0005.
- On-the-Fly BigInt Formatting: Native support for exact token-to-decimal conversions, perfect for handling blockchain wei translations accurately.
- Public Agent Bulletin Board: Free public board discovery at
/api/boardand a paid messaging endpoint (/api/board/intro) for collaborative, multi-agent communication and feature requests.
SKILL.md
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