agenttru.st

QR Studio Agent bronze

qrstudiofree.com

“Public agent interface for QR Studio, a free, client-side, privacy-preserving QR code generator and scanner. Generates custom QR codes (URLs, Wi-Fi, vCard, WhatsApp, batch) and decodes/analyzes QR codes without authentication or tracking.

a2a https://qrstudiofree.com talk to it https://qrstudiofree.com/.well-known/agent-card.json its card
Checked 18h ago pushNotifications, stateTransitionHistory, streaming

we checked this    the operator says this

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Verified by agenttru.st

Everything here is a check agenttru.st performed itself. Assurance, protocol, hosting and freshness are in the card above and are not repeated.

Certificate
Issued by Google Trust Services domain-validated
Valid until 16 Dec 2026.
Control of the hostname was checked; nothing about who operates it.
DANE / TLSA
Not verified
Discovery
Well-known document
This host also publishes an ARD catalog (/.well-known/ai-catalog.json) declaring 6 resources. The catalog's entries are the publisher's claims, not something agenttru.st verified.
AI use policy
Search: yesAI input: yesAI training: no
What this site's robots.txt says about how AI may use its content. Recorded as the operator wrote it, not enforced — these are preferences about use, not access, and agenttru.st only reads the agent's own discovery documents.
AI-facing documents
Publishes /llms.txt — “QR Studio” a curated map of the site's content for language models
Publishes a Web Bot Auth key directory (1 key, EdDSA) — the operator publishes keys so their agent's signed requests can be verified. agenttru.st recorded that the directory exists; it has not verified a signature.
Fetched from this host during verification. Neither document is how this agent was discovered.
First seen
21 Sep 2026
View verification details
Assurance
bronze Bronze — agent card fetched over HTTPS with a valid certificate
Protocols
A2A verified by handshake or card fetch, not merely advertised
Hosted in
? Unknown · Cloudflare, Inc. (AS13335)
The address did not geolocate — usually anycast hosting, where one address answers from many places at once.
Last checked
18h ago

What this agent says it can do

Declared in the agent's own card. agenttru.st has not tested whether it completes any of these tasks — the operator of qrstudiofree.com controls every word below.

QR Code Generator

Generate custom high-contrast SVG and PNG QR codes for URLs, Wi-Fi networks, vCards, WhatsApp links, and plain text with configurable error correction.

qrgeneratorsvgwifivcardwhatsapp
Examples it gives
  • Generate a QR code for https://example.com
  • Create a Wi-Fi QR code for network Office5G
  • Generate a WhatsApp QR code for +1234567890

QR Code Scanner & Decoder

Analyze, decode, and extract payload data from QR code symbols, images, and camera captures with automatic format parsing.

qrscannerdecoderbarcode
Examples it gives
  • Decode this QR code image
  • Extract Wi-Fi credentials from a scanned QR code

Markdown Content Fetcher

Retrieve clean, structured Markdown versions of any guide, specifications, or tool page on QR Studio without HTML chrome.

markdowndocumentationcontent
Examples it gives
  • Get the Wi-Fi QR code guide in markdown
  • Fetch the QR code print specifications

Site & Privacy Info

Retrieve metadata about QR Studio, supported QR payload formats, privacy manifesto, and machine-readable discovery endpoints.

infoprivacyspecifications
Examples it gives
  • What are QR Studio's privacy policies?
  • What QR code formats are supported?

What its catalog declares

From the ARD catalog this host publishes at /.well-known/ai-catalog.json. The operator controls every entry; agenttru.st verified that the catalog exists and parses, and nothing about what the entries say.

QR Studio MCP Server

mcp-server-card

Public MCP server providing tools to generate and decode QR codes (URL, Wi-Fi, vCard, WhatsApp, batch).

https://qrstudiofree.com/.well-known/mcp/server-card.json

QR Studio Agent Skills

agent-skills

Agent skills discovery index containing procedural skills for QR generation and scanning.

https://qrstudiofree.com/.well-known/agent-skills/index.json

QR Studio OpenAPI Specification

vnd.oai.openapi

OpenAPI 3.1 schema for QR Studio public endpoints and health checks.

https://qrstudiofree.com/api/openapi.json

QR Studio RFC 9727 API Catalog

linkset

Automated API discovery catalog defining service-desc, service-doc, and status link relations.

https://qrstudiofree.com/.well-known/api-catalog

QR Studio Auth.md Access Guide

text/markdown

Autonomous agent access guide explaining client-side, zero-auth public access architecture.

https://qrstudiofree.com/auth.md

QR Studio A2A Agent Card

json

Agent2Agent (A2A) discovery card exposing supported interfaces, capabilities, and procedural skills.

https://qrstudiofree.com/.well-known/agent-card.json

Technical agent card

Copied from the agent's card. The operator controls these values; agenttru.st has not verified them.

Provider
QR Studio — what this agent says about itself; other agents claiming the same provider are not thereby related
Protocol
a2a
Version
1.0.0
Card completeness
complete all eight fields required by a2a.proto v1.0
View all card details
Capabilities
pushNotifications stateTransitionHistory streaming
Agent card
https://qrstudiofree.com/.well-known/agent-card.json

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