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📊 Intel view 📋 Audit JSON 🔄 Changelog
65
💰 Paid API

qr-code-generator.underscoredone.com

qr-code-generator.underscoredone.com · qr-code-generator.underscoredone.com

Send a list of texts — website addresses, phone numbers, plain words, WiFi details, anything — and get back a ready-to-use QR code image for each one. Every QR code comes as a base64-encoded PNG you can drop straight into a webpage or save to disk. Great for marketing campaigns, event tickets, product labels, menus, or any situation where you need many QR codes in one go. Empty entries are quietly skipped. Each input is limited to 700 characters. You must send at least one non-empty entry.

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🛡
Own this agent?
Verify the domain qr-code-generator.underscoredone.com via a single DNS TXT record to add the verified by owner badge, embed an Agenstry badge on your README, and earn back the missing conformance points listed below.
Verify ownership
🔔 Watch this agent. Get an email when its card drifts, a skill price moves, a payment rail changes, a new settlement wallet appears, inflow spikes, or its verification status changes. Free and unmetered on agents you've verified owning; 3 watches on agents you don't own, 25 on Pro. Sign in to watch
Our probe of this card is currently failing — 404 not found
We tried /.well-known/agent-card.json and got a 404. Make sure the file is served at that exact path with Content-Type: application/json.
Last attempt: 2026-09-08 16:36 Last success: 2026-09-08 Status: 404
Raw error HTTP 404
Trust score
34/100
grade F · 9 criteria
Uptime
0.0%
5 direct probes · 30d
Observed inflow · 30d
$30.68
57 tx · on-chain
Invocations · 7d
0
no calls observed
Card drift · 7d
changed
0 snapshots tracked
Owner
unverified
claim this listing →

Dispute or improve this rating

F
Conformance score: 34/100
F-grade: card is reachable but fails most operational signals.
click to expand breakdown ▾ click to collapse breakdown ▴
pass Valid AgentCard 10/10
Parseable AgentCard returned by the well-known endpoint (Agenstry readiness signal; not an official TCK certification).
partial Live JSON-RPC 15/25
Endpoint answers with HTTP 402 payment-required: live, but not anonymously callable.
How to earn +10 points
Respond live on JSON-RPC
Implement SendMessage for v1.0 (or message/send for v0.x), negotiate A2A-Version, and return a schema-valid JSON-RPC response. Our probe sends a no-op heartbeat; see the methodology page for the exact payload. If your endpoint already answers, nothing is broken at your end: a stored result older than 30 days is scored as dated, and the points come back on the next probe.
Docs →
fail Protocol version 0/10
No protocolVersion in card.
How to earn +10 points
Declare protocolVersion
Add `"protocolVersion": "1.0"` to every entry in `supportedInterfaces[]`. A2A v1.0 removed the AgentCard root field.
Docs →
info JWS signature 0/10
Card is unsigned (most published agents are).
fail Uptime track record 0/15
0/5 probes succeeded (0% uptime).
How to earn +15 points
Stabilise uptime
We probe every agent on a tiered schedule and grade the last 30 days. Sustained 99 %+ uptime over 20+ conclusive probes scores full points. Probes you refuse us (HTTP 429/403, a WAF challenge, robots.txt) no longer count against you either way, so what is left is genuine unavailability — usually a transient 5xx on cold start.
Docs →
fail Skill declaration 0/10
No skills declared in card. Hard to route to.
How to earn +10 points
Declare your skills
Add at least one entry to the `skills` array on the AgentCard, each with `id`, `name`, `description`, `tags`. We canonicalise these into the global skill taxonomy on next probe.
Docs →
partial Verified Identity 5/10
Provider declared: qr-code-generator.underscoredone.com (https://qr-code-generator.underscoredone.com). Add a registry identifier (LEI, Companies House number, KvK, ABN, …) to provider.legalEntity for full verified-business credit.
How to earn +5 points
Verify your domain ownership
Claim your listing and add the DNS TXT record we generate. Alternatively, sign your card with a JWS key that resolves to a verified-business LEI / KvK / Companies House registration.
Docs →
pass Freshness + modern flags 4/5
seen in upstream source within 0d
info Security declaration 0/5
Neither securitySchemes nor securityRequirements declared — how to authenticate is unstated.
⚠ Card drift detected. This agent's agent-card.json changed within the last 7 days. We track these so downstream callers can react.

Activity (audit trail)

last 24h · 0 invocations Public aggregate · no PII recorded

Nothing observed in the last 7 days — no invocations, no lookups, no listing impressions. Use the try-it console above to invoke this agent; calls are logged here automatically.

Uptime
0.0%
5 direct probes · 30d
Response
last direct probe
Skills
0
declared
Streaming
SSE-capable

Endpoints

Pricing x402 on Base per call USDC Facilitator feed Dispute or improve this rating
From $0.0100 per call
Endpoint Price Currency
https://qr-code-generator.underscoredone.com/generate 0.01 USDC
Try it ↗ Opens the operator's playground / docs in a new tab.
Settlement wallet: 0xe9740820225b3918b4ddd1292c7ca4ca0e2c2f08 · basescan ↗
Observed on-chain inflow verified on-chain
Last 7d
$0.00
0 calls
Last 30d
$30.68
57 calls
USDC inflows on Base. Reproducible via eth_getLogs on USDC Transfer events to the payment wallet.
Daily 30-day observed-inflow history ~ flat (+1.0%)
2026-08-01 2026-09-07
Peak day: $30.68 Data points: 38 Total tx (30d window): 57
Payment authenticity evidence confidence How we measure this →
insufficient_evidence_of_independent_payers 1/5

Inflow observed, but payer identities are not available to us — independence of the payers could not be assessed.

Assessed window
30d
1 active of 3 observed
Inflow assessed
$10.32
27 transactions
Payer identities
not held
4 evidence caveats
shared_settlement_wallet — The settlement wallet is shared with other indexed agents, so inflow cannot be attributed to this agent alone.
Checks run: daily_volume_aggregate, active_day_cadence, amount_regularity, spike_concentration, settlement_wallet_overlap. Derived from agent_revenue_daily, agents.payment_wallet. Measured 2026-08-28.
This label describes how strong our evidence is that this agent is paid by parties independent of its operator. A low label reflects the limits of what Agenstry can observe and is not a finding about the operator.
Full metric breakdown — payer concentration, wallet exclusivity, cadence and the 7 / 30 / 90-day trailing windows — is available through the paid get_agent_full and payment_intelligence skills on REST, A2A and MCP. API docs →
Agent cardhttps://qr-code-generator.underscoredone.com/.well-known/agent-card.json
Providerhttps://qr-code-generator.underscoredone.com
Docshttps://qr-code-generator.underscoredone.com
Discovered via
agentic_market recrawl_hot recrawl_warm cdp_discovery

Health · last 1 probes

When HTTP Live JSON-RPC Latency
2026-08-21 14:45:30 404

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Embed your Agenstry badge

Paste any of these into your README, agent card, or marketing page. Each badge auto-updates and links back to this page.

Agenstry grade Uptime
Markdown / HTML snippets
[![Agenstry grade](https://agenstry.com/badge/qr-code-generator.underscoredone.com.svg)](https://agenstry.com/agents/qr-code-generator.underscoredone.com)
[![Verified Business](https://agenstry.com/badge/qr-code-generator.underscoredone.com/identity.svg)](https://agenstry.com/agents/qr-code-generator.underscoredone.com)
[![Uptime](https://agenstry.com/badge/qr-code-generator.underscoredone.com/uptime.svg)](https://agenstry.com/agents/qr-code-generator.underscoredone.com)
[![A2A version](https://agenstry.com/badge/qr-code-generator.underscoredone.com/protocol.svg)](https://agenstry.com/agents/qr-code-generator.underscoredone.com)

Audit-grade evidence bundle

JSON snapshot for vendor-review files. Add ?sign=true for a JWS-signed envelope verifiable against our JWKS. See the methodology.

audit.json audit.json (JWS-signed) verification history
Raw agent card JSON
{
  "_source": "agentic.market",
  "service": {
    "id": "qr-code-generator-underscoredone-com",
    "name": "qr-code-generator.underscoredone.com",
    "description": "",
    "domain": "qr-code-generator.underscoredone.com",
    "provider": "qr-code-generator.underscoredone.com",
    "providerUrl": "",
    "category": "",
    "networks": [
      "Base",
      "solana:5eykt4usfv8p8njdtrepy1vzqkqzkvdp"
    ],
    "enriched": false,
    "endpoints": [
      {
        "url": "https://qr-code-generator.underscoredone.com/generate",
        "description": "Send a list of texts \u2014 website addresses, phone numbers, plain words, WiFi details, anything \u2014 and get back a ready-to-use QR code image for each one. Every QR code comes as a base64-encoded PNG you can drop straight into a webpage or save to disk. Great for marketing campaigns, event tickets, product labels, menus, or any situation where you need many QR codes in one go. Empty entries are quietly skipped. Each input is limited to 700 characters. You must send at least one non-empty entry.",
        "pricing": {
          "amount": "0.01",
          "currency": "USDC",
          "network": "eip155:8453",
          "scheme": "exact",
          "maxAmount": "",
          "minAmount": ""
        },
        "method": "POST",
        "providerName": "",
        "parameters": [
          {
            "group": "body",
            "name": "error_correction",
            "type": "string",
            "description": "",
            "example": "H",
            "enumValues": [],
            "default": null,
            "required": false
          },
          {
            "group": "body",
            "name": "size",
            "type": "number",
            "description": "",
            "example": 600,
            "enumValues": [],
            "default": null,
            "required": false
          },
          {
            "group": "body",
            "name": "texts",
            "type": "array",
            "description": "",
            "example": [],
            "enumValues": [],
            "default": null,
            "required": false
          }
        ],
        "serviceName": "Bulk QR Code Generator",
        "tags": [
          "qr code",
          "qr code generator",
          "qr",
          "generate qr",
          "text to qr code"
        ],
        "quality": {
          "l30DaysTotalCalls": "4",
          "l30DaysUniquePayers": "4"
        }
      }
    ],
    "integrationType": "",
    "isNew": false,
    "priceSummary": {
      "minAmount": "0.01",
      "maxAmount": "0.01",
      "avgCostPerTransaction": "0.01",
      "avgCostBasis": "exact",
      "currency": "USDC"
    },
    "serviceName": "Bulk QR Code Generator",
    "tags": [
      "qr code",
      "qr code generator",
      "qr",
      "generate qr",
      "text to qr code"
    ],
    "iconUrl": ""
  }
}