Tools / Web & data
QR Generator $0.002 / call
QR codes as SVG or terminal text.
GET /v1/qrEncodes any string into a QR code, returned as scalable SVG by default or as terminal block-art with format=text. Error-correction level is selectable.
Parameters
data required | Content to encode (max 2048 chars) |
format | svg (default) or text |
ecc | Error correction: L, M, Q, or H |
Example
macOS / Linuxcurl -s "https://quartermaster.surewhynot.app/v1/qr?data=https://quartermaster.surewhynot.app"curl.exe -s "https://quartermaster.surewhynot.app/v1/qr?data=https://quartermaster.surewhynot.app"Unpaid, these return 402 Payment Required with the payment details in the header (add -i to see them). curl.exe ships with Windows 10+ and works in cmd and both PowerShell versions. To actually pay, use an x402 client (see Connect) or call it as the MCP tool. Cost: $0.002 per call.
FAQ
What can I encode?
Any text up to 2048 characters — URLs, payment links, plain text, Wi-Fi strings, whatever your workflow needs.
How do I pay for this endpoint?
Call it with no payment and you receive HTTP 402 with machine-readable payment requirements. Attach a USDC payment on Base with any x402 client (for example @x402/fetch) and retry — the whole loop is two requests. This call costs $0.002 in USDC.
Do I need an account or API key?
No. There are no accounts, logins, or API keys anywhere in Quartermaster. Payment is per call over the x402 protocol; your wallet is your identity.
Can I call this as an MCP tool instead?
Yes. Quartermaster is also an MCP server at /mcp, so any MCP client (Claude Code, Claude.ai, Cursor) can mount this tool. See /connect for setup.