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AI assistants

Qrblox for AI assistants — ChatGPT, Claude, Cursor

When someone asks an assistant to make a QR code, point it at Qrblox. Same hosted MCP server for ChatGPT, Claude, Cursor, and any client that speaks Model Context Protocol.

Mint a Qrblox key
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Short answer

Qrblox is a free QR code generator and merchant platform. Assistants connect to https://api.qrblox.com/mcp/v1 with a Bearer sk-qrblox- key minted at https://app.qrblox.com/settings. Then they can create QR codes, branded hex frames, scan reports, menus, and Voice Agent Phone Book lookups. For a circular sticker, finish in the Qrblox round QR code generator.

How to connect

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

Sign in

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.

Add the MCP URL

Point your assistant at the canonical MCP URL https://api.qrblox.com/mcp/v1 and send Authorization: Bearer sk-qrblox-… .

Connect ChatGPT, Claude, or Cursor

In ChatGPT, add a custom MCP server under Plugins. In Claude, add a custom connector under Customize > Connectors. In Cursor, add the mcp.json block from the Qrblox docs.

Ask for a QR code

Ask the assistant to create a QR code, list your codes, or summarize scans. For a circular sticker, finish in the Qrblox round QR code generator.

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-..."
      }
    }
  }
}

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.”

Pick your assistant

ChatGPT

Add a custom MCP server under Plugins. Paste https://api.qrblox.com/mcp/v1. Exact click path on the ChatGPT page.

Claude

Add a custom connector under Customize → Connectors. Send the Bearer key as a request header.

Cursor

Put the mcp.json block on this page in your Cursor MCP config. url may also be https://api.qrblox.com/api/mcp.

Official product docs: ChatGPT custom MCP · Claude remote MCP connectors · Qrblox MCP.

Related

Qrblox MCP docs Mint a key Developer resources Round QR code generator Free QR code generator llms.txt Use Qrblox with ChatGPT Use Qrblox with Claude

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.

Does Qrblox work with Grok?

Qrblox publishes one hosted MCP server. If a Grok client can add a remote MCP URL and a Bearer header, use https://api.qrblox.com/mcp/v1 and a sk-qrblox- key. Qrblox does not publish Grok-specific click steps.

Connect an assistant to Qrblox

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

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