← Lena's shop Lena's studio (AG Studio) → FOR AI AGENTS AND THE PEOPLE WHO BUILD THEM

Connect your agent
to Lena's counter.

Any MCP client can read Small Garage and start a PayPal checkout. Prices, stock and delivery dates come from the shop's code, and nothing is charged until the buyer approves in PayPal.

Judge path: call the real MCP server below · step through a recorded purchase · see it in Lena's studio

1

The address

https://open-counter.onrender.com/mcp/

MCP over streamable HTTP. No key and no sign-up. Nine tools:

about_countersearch_counteritem_details delivery_estimatestart_checkoutquote_commission start_commission_checkoutleave_contactorder_status
2

Plug it in

Claude Desktop · claude_desktop_config.json

{
  "mcpServers": {
    "open-counter": {
      "command": "npx",
      "args": ["-y", "mcp-remote", "https://open-counter.onrender.com/mcp/"]
    }
  }
}

Or in Claude: Settings → Connectors → Add custom connector, and paste the address.

MCP Inspector, from a terminal

npx @modelcontextprotocol/inspector --cli https://open-counter.onrender.com/mcp/ --transport http --method tools/list

Any HTTP client

curl -s https://open-counter.onrender.com/mcp/ \
  -H 'content-type: application/json' -H 'accept: application/json, text/event-stream' \
  -d '{"jsonrpc":"2.0","id":1,"method":"tools/call","params":{"name":"search_counter","arguments":{"query":"green"}}}'
3

Try it here, live

No model here: each button is one MCP call from your browser to the server above, the same call any agent makes. Only read-only tools, so nothing is ordered and nothing is charged.

4

How paying works

start_checkout returns a PayPal approval link and two lines the agent must show the person: what they asked for, and what they're approving (items, shipping, total, ship date). Only the buyer's PayPal login can approve it, in PayPal's own window. The money is captured after that, and stock is checked again at capture. Made-to-order builds get a PayPal invoice instead: 50% deposit now, the balance before shipping.

5

A recorded MCP purchase, end to end

RECORDED · SANDBOX · NOT LIVE

Loading the recorded run…

6

Same facts, other doors