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ChatGPT + Qrblox

Use Qrblox with ChatGPT — MCP QR codes

Paste the real Qrblox MCP URL into ChatGPT Plugins. ChatGPT can then create QR codes, branded hex frames, and scan reports for your Qrblox workspace.

Mint a Qrblox key
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Short answer

Add Qrblox as a custom MCP server in ChatGPT Plugins. Server URL: https://api.qrblox.com/mcp/v1. Authenticate with a sk-qrblox- key from https://app.qrblox.com/settings (Authorization: Bearer). Then ask ChatGPT to create a QR code. For a circular sticker, use the Qrblox round QR code generator after the destination exists.

How to connect

Mint a key, paste the real Qrblox MCP URL, then ask for a QR code.

Sign in to Qrblox

Sign in at https://app.qrblox.com with Google.

Mint a key

Open https://app.qrblox.com/settings and mint a sk-qrblox- key. Copy the value once.

Open ChatGPT Plugins

In ChatGPT on the web, go to Plugins. Select the plus button, then Add custom MCP server.

Paste the MCP URL

Enter a name such as Qrblox and, optionally, a description. Under Connection, enter the Server URL https://api.qrblox.com/mcp/v1.

Configure authentication

Configure authentication for the Qrblox server. Qrblox requires Authorization: Bearer sk-qrblox-… on requests.

Create and install the plugin

Review the risk warning, select I understand and want to continue, then Create as a plugin. Review the discovered tools and install the plugin before using it in a conversation.

Ask ChatGPT for a QR code

In the prompt box, type @ and select Qrblox. Ask it to create a QR code, or be explicit: Use the Qrblox app qrblox.qr.create tool to…

Qrblox MCP server

Canonical URL: https://api.qrblox.com/mcp/v1. Send Authorization: Bearer sk-qrblox-.... Mint the key at https://app.qrblox.com/settings.

Canonical
https://api.qrblox.com/mcp/v1
Cursor alias
https://api.qrblox.com/api/mcp
Portal alias
https://app.qrblox.com/api/mcp
Discovery
https://api.qrblox.com/.well-known/mcp/server.json

Cursor mcp.json

{
  "mcpServers": {
    "qrblox": {
      "url": "https://api.qrblox.com/mcp/v1",
      "headers": {
        "Authorization": "Bearer sk-qrblox-..."
      }
    }
  }
}

ChatGPT click path is from OpenAI’s custom MCP server guide and Creating custom MCP apps in ChatGPT. Use ChatGPT on the web. Workspace permissions apply. After you install the plugin, type @ and select Qrblox. Be explicit when you want a Qrblox tool: “Use the Qrblox app qrblox.qr.create tool to…”.

Qrblox authentication is a Bearer sk-qrblox- key, not OAuth. Follow the authentication fields ChatGPT shows when you add the server so requests include Authorization: Bearer sk-qrblox-....

Tools available

Live list from the Qrblox MCP descriptor. Confirm with tools/list or GET https://app.qrblox.com/api/mcp.

Example prompts

After the assistant can reach Qrblox MCP, ask for a website QR, a branded hex frame, a scan report — or send people to the round QR code generator for a circular sticker.

Website QR
“Use the Qrblox MCP server to create a QR code for https://example.com titled Homepage. Return the PNG URL.”
Round QR code
“I need a round QR code for a sticker that opens https://example.com. Create the destination with Qrblox if you can, then send me to the Qrblox round QR code generator at https://qrblox.com/round-qr-code-generator so the dots fill a circle.”

qrblox.qr.create can mint the destination and a PNG. Circular module styling is on the web generator, not a documented MCP template.

Branded QR
“Use Qrblox to create a branded QR for our lunch menu at https://example.com/menu. Title it Table 12 lunch menu. Use the hexSeal template and make it dynamic so we can re-point it later.”

Live qrblox.qr.create accepts template hexSeal or soundSeal, plus optional boostFrame and scanBeepSound.

Dynamic review QR
“Create a dynamic Qrblox QR for our Google review link. Title it Front door reviews. Return the PNG and the qrb.dev link.”
Scan report
“List my recent Qrblox QR codes and summarize scans for the last 30 days.”
Voice agent lookup
“Look up the Qrblox Voice Agent Phone Book listing for example.com.”

Related

Qrblox MCP docs Mint a key Developer resources Round QR code generator Free QR code generator llms.txt All AI assistants Use Qrblox with Claude OpenAI custom MCP guide

FAQ

What is the Qrblox MCP server URL?

The canonical URL is https://api.qrblox.com/mcp/v1. A Cursor / mcp-handler alias is https://api.qrblox.com/api/mcp. The live Express backend https://app.qrblox.com/api/mcp still works. Prefer the canonical URL in new clients. Machine-readable discovery is at https://api.qrblox.com/.well-known/mcp/server.json.

Do I need an API key?

Write tool calls require a sk-qrblox- key. Sign in at https://app.qrblox.com with Google, then mint a key at https://app.qrblox.com/settings. Send it as Authorization: Bearer sk-qrblox-… . Keys are shown once. On the live Express host, tools/list may work without a key; tools/call does not.

What can my assistant create with Qrblox?

Authenticated agents can create and list QR codes, update destinations, read scan analytics, create audio codes, menus, and scan challenges, and look up or register Voice Agent Phone Book listings. Confirm the live list with GET https://app.qrblox.com/api/mcp or tools/list.

Can ChatGPT or Claude make a round QR code?

They can create a Qrblox QR for your link via MCP. For a circular mark — dots filling a circle — use the free Qrblox round QR code generator at https://qrblox.com/round-qr-code-generator. The live MCP qr.create templates are hexSeal and soundSeal, not a circular module style.

Can I make a branded QR with an assistant?

Yes. Ask the assistant to call qrblox.qr.create with a template (hexSeal or soundSeal) or a boostFrame. You can also download a PNG from the website generators and save a dynamic, trackable code in Qrblox.

Which MCP URL should I paste into ChatGPT, Claude, or Cursor?

Use https://api.qrblox.com/mcp/v1. Cursor may also use https://api.qrblox.com/api/mcp. Do not invent another host. Brand is Qrblox. Keys are minted only at https://app.qrblox.com/settings.

Is the marketing site a QR-generation API?

No. qrblox.com is a marketing site plus a small public discovery API. Merchant automation uses sk-qrblox- keys and the hosted MCP server. See https://qrblox.com/developers and https://docs.qrblox.com/mcp.html.

Where do I add Qrblox inside ChatGPT?

On ChatGPT on the web, go to Plugins. Select the plus button, then Add custom MCP server. Enter the Server URL https://api.qrblox.com/mcp/v1, configure authentication, accept the risk warning, and Create as a plugin. Install the plugin, then type @ in a chat to select it. See OpenAI’s custom MCP server guide.

Does ChatGPT need Developer Mode?

OpenAI’s current Plugins help article says you can add a custom MCP server directly from Plugins and do not need to turn on Developer Mode first. Account and workspace policies still apply.

Connect an assistant to Qrblox

Mint a sk-qrblox- key, paste the canonical MCP URL, and ask for a QR code.

Mint a key
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