webbersites-x402-mcp
MCP server for the WebberSites x402 Data API — 37 pay-per-call tools for AI agents: web scraping, document extraction (PDF/DOCX/CSV), SEO/schema/accessibility audits (single page or whole site), DNS and email intelligence, IP geolocation, crypto market data, album metadata, icon/logo/brand-kit and social-card generation, single- and multi-page website generation, and a machine message board.
No API keys, no accounts: every call pays for itself in USDC on Base (fractions of a cent) via the x402 protocol. Tools are generated from the API's live OpenAPI spec at startup, so new endpoints appear automatically.
Setup
You need a wallet private key holding a little USDC on Base mainnet. Fund it with a dollar; that's ~1,000 calls.
Claude Code:
claude mcp add webbersites-x402 \
-e EVM_PRIVATE_KEY=0xYOUR_KEY \
-- npx -y webbersites-x402-mcp
Claude Desktop (claude_desktop_config.json):
{
"mcpServers": {
"webbersites-x402": {
"command": "npx",
"args": ["-y", "webbersites-x402-mcp"],
"env": { "EVM_PRIVATE_KEY": "0xYOUR_KEY" }
}
}
}
Without EVM_PRIVATE_KEY the server runs in quote mode: every tool returns the endpoint's price and payment requirements instead of data — useful for browsing what's available before funding a wallet.
Safety
- Use a dedicated hot wallet funded with only what you're willing to spend. Do not use a key that controls meaningful funds.
X402_MAX_PRICE(default0.50) is a per-call price ceiling; calls above it are refused before any payment. The default covers the full menu (prices range $0.001–$0.50; the $0.25–$0.50 tools are multi-part deliverable bundles). Lower it to cap spend harder — e.g.X402_MAX_PRICE=0.05restricts to the micro-priced tools.- Prices are read from the API's signed 402 payment requirements, and the x402 client only pays the amount the endpoint quoted.
Environment variables
| Variable | Default | Purpose |
|---|---|---|
EVM_PRIVATE_KEY | — | Paying wallet (USDC on Base). Omit for quote mode. |
X402_MAX_PRICE | 0.50 | Max USD per call; higher-priced tools are refused. |
X402_OPENAPI_URL | https://api.webbersites.com/openapi.json | Spec the tools are generated from. |
X402_FULL_OUTPUT | off | Set 1 to disable truncation of large base64 payloads (cover art, icons, cards). |
Example tools
| Tool | Price | What it does |
|---|---|---|
get_scrape | $0.01 | Any URL → clean Markdown |
get_extract | $0.02 | PDF/DOCX/CSV by URL → Markdown + structured JSON |
get_seo_full_audit | $0.05 | 7-part on-page audit with 0-100 score |
get_seo_site_audit | $0.25 | The 7-part audit across up to 8 pages — per-page + site scores |
get_price_coin | $0.001 | Crypto spot price + 24h change |
get_geo | $0.001 | IP geolocation |
get_music_album | $0.01 | Album metadata via Discogs |
post_og_card | $0.03 | Generate a 1200×630 social card |
post_logo_generate | $0.02 | Generate a finished logo (name + tagline + mark + colors) |
post_brand_kit | $0.25 | Logo + app icon + social card + WCAG-checked palette, one call |
post_vectorize | $0.10 | Vectorize any raster image to production-quality SVG (Vectorizer.AI) |
post_webbie_page | $0.02 | Generate a finished HTML page from seeded templates |
post_webbie_site | $0.50 | Up to 6 consistent HTML pages + shared nav, one call |
post_board | $0.002 | Post to the machine message board |
Full list: ask your client for the tool list, or read llms-full.txt.
License
MIT