Quantum Companies

About

Connects to the Quantum Companies directory, which lists companies building quantum computers, software, sensors, networks and components. You can search listings by text, country, region, city and category, open a single company record, and read counts and data sources. Results carry attribution and source license information.

It also exposes affiliate products with the price seen on a given date and an outbound buy link. The hosted streamable HTTP endpoint needs no sign-in or API key for the read tools. A service token in the Authorization header makes additional write tools appear, depending on its scopes.

What you can do

• Search quantum companies by text, place and category
• Fetch one company record by slug
• List places and categories with counts
• Check dataset stats and source licenses
• Browse affiliate quantum products and prices

Tools 11

• search_listingsRead-only

  Search published quantum companies by text, place and category.

• get_listingRead-only

  Get one published quantum company by its slug.

• list_placesRead-only

  List countries, regions and cities that have quantum companies.

• list_categoriesRead-only

  List categories with their quantum company counts.

• get_statsRead-only

  Get counts of companies, places and categories, and when data last changed.

• list_sourcesRead-only

  List data sources with the license and refresh of each.

• list_productsRead-only

  List affiliate products with the price on the day checked, filterable by category.

• get_productRead-only

  Get one affiliate product by slug, with its page and outbound link.

• list_product_categoriesRead-only

  List product categories with their product counts.

• list_coursesRead-only

  List Courses

• get_courseRead-only

  Get Course

Read from the live server on 15 Nov 2026. Read-only, Writes and Can delete are hints the server declares; your client decides whether to ask before running a tool.

Example prompts

• Find quantum sensing companies in Boulder.

• List the categories of quantum companies and how many each has.

• Show details for the Forward Photonics listing.

• Which affiliate quantum products are available, and at what price?

Set up

Every client connects to quantumcompanies.fyi. Pick yours; the page remembers your choice.

claude mcp add --transport http quantum-companies https://quantumcompanies.fyi/mcp

https://quantumcompanies.fyi/mcp

{
  "mcpServers": {
    "quantum-companies": {
      "url": "https://quantumcompanies.fyi/mcp"
    }
  }
}

code --add-mcp '{"name":"quantum-companies","type":"http","url":"https://quantumcompanies.fyi/mcp"}'

{
  "servers": {
    "quantum-companies": {
      "type": "http",
      "url": "https://quantumcompanies.fyi/mcp"
    }
  }
}

{
  "mcpServers": {
    "quantum-companies": {
      "serverUrl": "https://quantumcompanies.fyi/mcp"
    }
  }
}

codex mcp add quantum-companies --url https://quantumcompanies.fyi/mcp

[mcp_servers.quantum-companies]
url = "https://quantumcompanies.fyi/mcp"

gemini mcp add --transport http quantum-companies https://quantumcompanies.fyi/mcp

{
  "mcpServers": {
    "quantum-companies": {
      "type": "http",
      "url": "https://quantumcompanies.fyi/mcp"
    }
  }
}

Embed

Show Quantum Companies in a README or on your site. Each embed links to this page, uses the server’s own URL, and sets no cookies. How embeds work

The card, the iframe and the JSON are in English. Add ?lang=it, fr, de or es to their address for another language.

README badge Website card iframe JSON AI prompt

README badge

Markdown

[![Quantum Companies on mcp.tc](https://mcp.tc/i/quantum-companies/badge.svg)](https://mcp.tc/i/quantum-companies)

HTML

<a href="https://mcp.tc/i/quantum-companies"><img src="https://mcp.tc/i/quantum-companies/badge.svg" alt="Quantum Companies on mcp.tc" height="20"></a>

It follows the reader’s light or dark mode. Add ?theme=light or ?theme=dark to fix it, or ?style=compact to show the mark without the word.

Website card

HTML

<script src="https://mcp.tc/w/quantum-companies.js" async></script>

The card appears where the tag is. Add data-theme="dark" or data-size="compact" to the tag to change it. The file holds everything it needs, so it makes no other requests and sets no cookies.

iframe

HTML

<iframe src="https://mcp.tc/embed/quantum-companies" title="Quantum Companies on mcp.tc" width="420" height="200" loading="lazy" allow="clipboard-write" style="border:0;border-radius:8px;max-width:100%"></iframe>

Use it on pages that don’t allow scripts. Add ?theme=light or ?theme=dark to the address to fix the colors.

JSON

The listing as data for your own pages and tools: name, tagline, the server’s own URL, tools and the “Add to” links. Any site can read it (CORS is open).

https://mcp.tc/i/quantum-companies.json

What each field means

AI prompt

Paste this into an AI coding assistant, such as Claude Code or Cursor, and it adds the Quantum Companies card to your site.

Markdown

Add the mcp.tc card for Quantum Companies, an MCP server, to my website. It is one static script: no build step, no package to install, no cookies.

Put this tag where the card should appear. The card renders right before it:

```html
<script src="https://mcp.tc/w/quantum-companies.js" async></script>
```

To show the card somewhere else, put this placeholder there and load the same script once, for example before `</body>`. Keep the link inside: visitors without JavaScript see it.

```html
<div data-mcptc="quantum-companies"><a href="https://mcp.tc/i/quantum-companies">Quantum Companies on mcp.tc</a></div>
```

Options:
- `data-theme="light"` or `"dark"` on the tag or the placeholder fixes the colors. Without it, the card follows the visitor’s light or dark mode.
- `data-size="compact"` gives a smaller card without the tagline.
- The CSS variable `--mcptc-max-width` on the placeholder or a parent sets the width (default `520px`).
- `?lang=` on the script URL sets the card’s language: `en`, `it`, `fr`, `de` or `es`.

If the site has a Content Security Policy, allow `script-src https://mcp.tc` and `img-src data:` (the icon is inline).

For a README or other Markdown docs, use the badge instead:

```markdown
[![Quantum Companies on mcp.tc](https://mcp.tc/i/quantum-companies/badge.svg)](https://mcp.tc/i/quantum-companies)
```

Reference: https://mcp.tc/embed

Change history

We read this server’s tool list every 3 hours and record what changes. Last read 15 Nov 2026, 02:47 UTC.

1. 12 Nov 2026, 08:47 UTC, Automatic check

   Server instructions changed.

   New server instructions

   Details, 12 Nov 2026, 08:47 UTC

   Server instructions

   Before

   Quantum Companies lists quantum companies. Call list_places and list_categories first to learn the place and category slugs. Then call search_listings, and get_listing for one record. Every result has meta.attribution and meta.sources. Show the credit line, and keep the license of each source. A quantum company is a record, not an endorsement. list_product_categories, list_products and get_product read the affiliate products. A price is the one seen on price_as_of, not a live price; buy_url is an affiliate link. list_courses and get_course read the published academy courses. Exam questions and answers are never returned. With a service token in the Authorization header, tools/list also offers the write tools that the token's scopes allow.

   After

   Quantum Companies lists quantum companies. Privacy policy: https://quantumcompanies.fyi/privacy. Call list_places and list_categories first to learn the place and category slugs. Then call search_listings, and get_listing for one record. Every result has meta.attribution and meta.sources. Show the credit line, and keep the license of each source. A quantum company is a record, not an endorsement. list_product_categories, list_products and get_product read the affiliate products. A price is the one seen on price_as_of, not a live price; buy_url is an affiliate link. list_courses and get_course read the published academy courses. Exam questions and answers are never returned. With a service token in the Authorization header, tools/list also offers the write tools that the token's scopes allow.

2. 11 Nov 2026, 20:57 UTC, Automatic check

   11 tools changed.

   Details, 11 Nov 2026, 20:57 UTC

   Changed 11

   • get_coursetitle

     title

     Before

     none

     After

     Get Course

   • get_listingtitle

     title

     Before

     none

     After

     Get Listing

   • get_producttitle

     title

     Before

     none

     After

     Get Product

   • get_statstitle

     title

     Before

     none

     After

     Get Stats

   • list_categoriestitle

     title

     Before

     none

     After

     List Categories

   • list_coursestitle

     title

     Before

     none

     After

     List Courses

   • list_placestitle

     title

     Before

     none

     After

     List Places

   • list_product_categoriestitle

     title

     Before

     none

     After

     List Product Categories

   • list_productstitle

     title

     Before

     none

     After

     List Products

   • list_sourcestitle

     title

     Before

     none

     After

     List Sources

   search_listings

3. 4 Nov 2026, 23:45 UTC, Automatic check

   2 tools added. Server instructions changed.

   New server instructions

   Details, 4 Nov 2026, 23:45 UTC

   Added 2

   • get_courseRead-only

     Get one published academy course by its slug, with its objectives, lessons and FAQ. Exam questions and answers are never returned.

   • list_coursesRead-only

     List the published academy courses with their level, length, pass mark and certificate validity.

   Server instructions

   Before

   Quantum Companies lists quantum companies. Call list_places and list_categories first to learn the place and category slugs. Then call search_listings, and get_listing for one record. Every result has meta.attribution and meta.sources. Show the credit line, and keep the license of each source. A quantum company is a record, not an endorsement. list_product_categories, list_products and get_product read the affiliate products. A price is the one seen on price_as_of, not a live price; buy_url is an affiliate link. With a service token in the Authorization header, tools/list also offers the write tools that the token's scopes allow.

   After

   Quantum Companies lists quantum companies. Call list_places and list_categories first to learn the place and category slugs. Then call search_listings, and get_listing for one record. Every result has meta.attribution and meta.sources. Show the credit line, and keep the license of each source. A quantum company is a record, not an endorsement. list_product_categories, list_products and get_product read the affiliate products. A price is the one seen on price_as_of, not a live price; buy_url is an affiliate link. list_courses and get_course read the published academy courses. Exam questions and answers are never returned. With a service token in the Authorization header, tools/list also offers the write tools that the token's scopes allow.

4. 3 Nov 2026, 20:27 UTC, Automatic check

   Tracking started: 9 tools.

FAQ