wmcp.sh
Add any website to Claude, Cursor, or Codex as agent-callable MCP tools — in one line of config. No per-server build, no SDK.
    
<p align="center"> <a href="https://wmcp.sh/demo/hero.mp4"> <img src="https://wmcp.sh/og.png" alt="wmcp.sh — paste any URL, get agent-callable MCP tools in Claude/Cursor/Codex" width="640" /> </a> <br/> <em><a href="https://wmcp.sh/demo/hero.mp4">▶ Watch the 30-sec demo</a> — paste a URL → tools appear → agent calls add_to_cart.</em> </p>
wmcp.sh is a real, spec-compliant MCP server (JSON-RPC 2.0 over Streamable HTTP) that turns any URL into agent-callable tools — Shopify product pages, OpenAPI specs, JSON-LD pages, OAuth-protected APIs. Every other MCP server is one-per-service and hand-built; wmcp is one endpoint that adapts to whatever URL you point it at. Paste a config line and your agent can read prices, list variants, or call an API on a site that ships no MCP server of its own.
Live now: wmcp.sh · Directory · Blog · /llms.txt
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30-second quickstart
Connect any URL to your MCP client (the flagship)
Point any MCP client — Claude Code, Claude Desktop, Cursor, Codex, Cline, VS Code — at a per-URL endpoint: /mcp/u/<base64url-of-your-url>. That's the whole install. The server exposes that page's extracted tools natively (tools/list + tools/call):
{
"mcpServers": {
"allbirds": {
"type": "http",
"url": "https://wmcp.sh/mcp/u/aHR0cHM6Ly93d3cuYWxsYmlyZHMuY29tL3Byb2R1Y3RzL21lbnMtd29vbC1ydW5uZXJz"
}
}
}That base64url string decodes to https://www.allbirds.com/products/mens-wool-runners. Encode your own:
node -e "process.stdout.write(Buffer.from('https://your-url.example').toString('base64url'))"Compose several sites into one MCP server — repeat the url param; tool names are namespaced per host (site_a__add_to_cart):
{ "mcpServers": { "wmcp": { "type": "http", "url": "https://wmcp.sh/mcp/url?url=https://site-a.example&url=https://site-b.example" } } }tools/list (discovery) is free. tools/call (live execution) needs a paid key, passed as a Bearer header:
{ "mcpServers": { "wmcp": { "type": "http", "url": "https://wmcp.sh/mcp/u/<base64url>", "headers": { "Authorization": "Bearer webmcp_live_…" } } } }type may be "http" or "streamable-http" (same transport). For Claude Desktop builds without remote-MCP support, bridge with npx mcp-remote <url>. Full walkthrough: /how-to/install-claude-desktop-mcp.
Or just hit the REST API (no client, no key for reads)
# any URL → MCP-shaped tool list
curl 'https://wmcp.sh/api/v1/tools?url=https://www.allbirds.com/products/mens-wool-runners'Returns a JSON tool list in the Claude tool_use / OpenAI function_call / MCP shape — get_price, add_to_cart, list_variants — that any agent can invoke.
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How it works
A 5-tier extraction chain turns most URLs into tools with zero per-site work. Each tier is tried in order; the first that detects the URL wins. The last tier is an LLM fallback that produces best-effort tools and caches the result.
┌──────────────────────────────────────────────────┐
│ URL in → │
│ 1. Shopify (~4M storefronts, <50ms) │
│ 2. JSON-LD (schema.org Product, etc.) │
│ 3. OpenAPI (any 3.x / Swagger 2.0 → tools)│
│ 4. Provider (Stripe, GitHub, Slack…) │
│ 5. LLM-fallback (Claude Haiku, cached 30d) │
│ → MCP tools out │
└──────────────────────────────────────────────────┘Cached on Cloudflare KV; sub-50ms on a cache hit. Discovery (tools/list) is free; live execution (tools/call) runs through the same engine and needs a paid key. For sites that block bot fetches or hydrate client-side from authed APIs, a Chrome extension extracts schemas in your browser and pushes them back to the shared cache. Full design in docs/ARCHITECTURE.md.
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What makes it different
Today, "an MCP server for X" means someone wrote, built, and deployed a dedicated server for service X. There are hundreds of them, each one a separate repo and a separate install.
wmcp inverts that:
| | Hand-built MCP server | wmcp.sh | |---|---|---| | Coverage | One service per server | Any URL, one endpoint | | Setup | Clone, build, configure, deploy | Paste one config line | | New target | Write & ship a new server | Encode the URL — done | | Auth'd upstreams | Bake credentials into each server | Shared OAuth/credential vault proxy at /mcp/<provider> | | Discovery | Find/trust each repo | Public directory of what's already cached |
There's also a saved toolset endpoint — /mcp/set/<id> — that bundles a curated set of URLs behind one stable MCP server (a Pro feature). It's genuinely novel: instead of one-per-service, wmcp turns arbitrary URLs into MCP tools on demand.
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Directory, SDKs & extension
- Directory — every URL the community has indexed, browsable and searchable: wmcp.sh/directory. Submit your site (free): wmcp.sh/directory/submit.
- OAuth-vault proxy — connect an OAuth-protected upstream once; call it as MCP from any client:
https://wmcp.sh/mcp/<provider>(Google, GitHub, Slack, Notion, Linear, Discord, Stripe, Anthropic). - Python SDK —
pip install wmcp. Nativefetch-style client, zero required deps. - JavaScript/TypeScript SDK —
npm install @wmcp/sdkwith one-line adapters for@wmcp/sdk/anthropic,@wmcp/sdk/openai,@wmcp/sdk/langchain, and@wmcp/sdk/vercel-ai.
import { WmcpClient } from "@wmcp/sdk";
import { toAnthropicTools } from "@wmcp/sdk/anthropic";
const client = new WmcpClient(); // anonymous = 100 reads/day per IP
const tools = toAnthropicTools(await client.tools("https://www.allbirds.com/products/mens-wool-runners"));- Chrome extension — for SPA / bot-walled / auth-walled sites. Extracts client-side, pushes cached schemas back to the hosted API so the next person gets them instantly — even if they never install it.
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Pricing
Two separate ladders. Self-serve API plans for anyone, and a done-for-you service if you want a custom adapter built and run for you.
Self-serve API (manage at /dashboard):
| Tier | Cost | What you get | |---|---|---| | Free | $0 | tools/list + REST reads, IP-rate-limited, no live execute | | Builder | $39/mo | Entry paid tier: live tools/call execute, OAuth vault, higher quotas | | Pro | $99/mo | High quotas, priority cache, full execute + vault | | Reseller | $299/mo | High-volume quotas, email support |
Done-for-you service (/managed):
| Tier | Cost | What you get | |---|---|---| | Starter | $499 one-time | Custom adapter built for your site + verified directory badge | | Managed Retainer | $999/mo | Ongoing maintenance, featured listing, white-label MCP at mcp.yourbrand.com | | Enterprise | $4,999+/mo | Self-hosted deployment + SLA + dedicated support |
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What's in the repo
.
├── adapters/ Shared adapter library (worker + extension import the same files)
│ ├── shopify.js ~4M storefronts, read + add_to_cart
│ ├── jsonld.js generic schema.org Product
│ ├── openapi.js any OpenAPI 3.x / Swagger 2.0 → tools
│ ├── llm.js Claude Haiku fallback
│ ├── CONTRACT.md the detect() / extract() / actions interface
│ ├── _template/ starter scaffold for new adapters
│ └── _test/run.mjs node:test harness, zero deps
│
├── worker/ Hosted API + MCP server at wmcp.sh
│ └── src/ Hono routes, mcp_server.ts, OAuth, billing, SEO pages, token vault
│
├── extension/ Chrome MV3 extension (cache-back path)
│
├── sdks/
│ ├── python/wmcp/ pip install wmcp
│ └── javascript/src/ @wmcp/sdk (+ anthropic / openai / langchain / vercel-ai adapters)
│
├── docs/ QUICKSTART · ARCHITECTURE · API · SELF_HOSTING
├── launch/ Launch artifacts (HN draft, registry submissions, demo)
├── AGENTS.md rules for AI coding agents working on this repo
├── CONTRIBUTING.md how to send a PR
├── ADAPTERS_WANTED.md open targets, ranked by difficulty
└── LICENSE MIT---
Contributing
New adapters are welcome via PR. The whole point is that adding a site shouldn't mean building a new server.
git clone https://github.com/New1Direction/webmcp-anything
cd webmcp-anything
cp -r adapters/_template adapters/mysite
# edit adapters/mysite/adapter.js — implement detect() + extract()
node adapters/_test/run.mjsAdapter files are plain ES modules with zero npm deps so the same file runs in Cloudflare Workers, Chrome MV3 service workers, and Node 18+. Read CONTRIBUTING.md, the adapter contract, and open targets in ADAPTERS_WANTED.md. If you're an AI coding agent, read AGENTS.md first.
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Status
- ✅ Production at wmcp.sh (Cloudflare Workers + KV)
- ✅ Spec-compliant MCP server (JSON-RPC 2.0 over Streamable HTTP) — per-URL, multi-URL, and saved-toolset endpoints
- ✅ 5-tier extraction chain + free REST API (
/api/v1/tools) - ✅ OAuth-vault proxy for 8+ providers (Google, GitHub, Slack, Notion, Linear, Discord, Stripe, Anthropic)
- ✅ Public directory (submit, badge, verified/featured)
- ✅ Python (
pip install wmcp) + JS (@wmcp/sdk) SDKs and a Chrome extension - 🟡 Stripe billing wired; self-serve dashboard upgrade in progress
- 🟡 Registry submissions in progress — see
launch/registry/SUBMISSION_PLAYBOOK.md
Found a bug? Open an issue. Have a site we should support? ADAPTERS_WANTED.md.
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License
MIT. See LICENSE. Repo: github.com/New1Direction/webmcp-anything.
