# Extension Board Company

> Small online shop for extension boards, power strips, USB charging strips and made-to-order custom extension boards (India, prices in INR).

IMPORTANT: All products, prices and stock on this site are SAMPLE / PLACEHOLDER data. No payment is processed and no checkout is automated: "checkout" records an order REQUEST that a human follows up. No safety certifications are claimed.

## Site map
- https://extensionboardcompany.com/ : home
- https://extensionboardcompany.com/products : paginated product list (12 per page, ?page=, ?category=)
- https://extensionboardcompany.com/products/{slug} : product page (JSON-LD Product schema)
- https://extensionboardcompany.com/products/custom : custom extension board configurator
- https://extensionboardcompany.com/products.json : machine-readable product feed
- https://extensionboardcompany.com/about : about and contact
- https://extensionboardcompany.com/sitemap.xml, https://extensionboardcompany.com/robots.txt
- https://extensionboardcompany.com/mcp : MCP server (see below)

## Categories (12 active products)
- Extension boards (3)
- Heavy duty (3)
- Power strips (3)
- USB charging strips (3)

## Reading products
GET https://extensionboardcompany.com/products.json?page=1&per_page=20&category=Heavy%20duty
- per_page: 1-100 (default 20). page: starts at 1. category: optional exact category name.
- Response: { sample, currency: "INR", page, per_page, total, pages, next, prev, products: [{ slug, name, category, price, specs, description, image, stock }] }
- "next" / "prev" are relative URLs or null.

## Custom configurator rules (/products/custom)
Inputs: current rating in amperes 6/10/16/20/25/32 A; cable length 1-10 whole metres; conductor cross-section 0.75/1/1.5/2.5/4/6 mm2; voltage 1p = 230 V single phase or 3p = 415 V three phase.
Capacity kW = V x A x power factor / 1000 (multiplied by sqrt(3) for three phase). Assumed power factor: 0.9.
Conservative copper ampacity table (max amps per cross-section): 0.75 mm2 -> 6 A, 1 mm2 -> 10 A, 1.5 mm2 -> 16 A, 2.5 mm2 -> 20 A, 4 mm2 -> 25 A, 6 mm2 -> 32 A.
A spec is NOT purchasable if the cross-section's limit is below the chosen amperage. Runs over 10 m at 16 A or more get a voltage-drop warning.
Custom units are made to order. All values are placeholders to be confirmed by a qualified electrician.

## MCP server
Endpoint: POST https://extensionboardcompany.com/mcp (Streamable HTTP, stateless, no auth, read-only, rate limited).
Tools: search_products(query?, category?, page?), get_product(slug), list_categories(), get_site_info(), validate_custom_spec(amps, length_m, mm2, voltage: "1p"|"3p").
There are no write tools: orders cannot be placed through MCP.

## Contact
hello@extensionboardcompany.com