Discover / qr-api-production-7adc.up.railway.app

qr-api-production-7adc.up.railway.app

□ No challenge detected

Generate SVG or PNG QR codes for links, text and standard payloads. Includes a four-module quiet zone, selectable error correction and validated foreground/background contrast.

x402
Base
USDC

Listed price: $0.02
Challenge detected: 0 of the last 2 checks
Last checked: 9 Oct, 15:20 UTC
In our index since: 8 Oct 2026

Endpoint

curl -i https://qr-api-production-7adc.up.railway.app/v1/qr/render
# 402 Payment Required: pay with an x402 client (USDC on Base),
# then send the same request again with the payment attached.

Agents can find it through the Superstables MCP server and JSON API: GET /api/v1/services/qr-api-production-7adc.up.railway.app

Recent checks

8 Oct 2026One bar per check, showing up to 20 recent checks. Coloured bars show relative response time, with a minimum visible height; full-height grey bars mean no challenge was detected. “Challenge detected” means HTTP 402 or another detected payment-challenge signal.9 Oct 2026

All 2 checks

When (UTC)	Result	HTTP	Response
9 Oct, 15:20 UTC	No challenge detected	404	55ms
8 Oct, 06:21 UTC	No challenge detected	404	125ms

Questions

Did our last probe detect a payment challenge?

No. At our last probe on 9 Oct, 15:20 UTC, we detected no payment challenge.

What price is recorded for qr-api-production-7adc.up.railway.app?

Its listed price is $0.02.

What payment terms does qr-api-production-7adc.up.railway.app advertise?

The listing advertises x402, Base and USDC. It names cdp as its facilitator. Check the seller's current payment challenge and authentication requirements before paying.

Where is qr-api-production-7adc.up.railway.app listed?

In x402 Bazaar. Superstables first indexed it on 8 Oct 2026.

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