💰 Paid API other

www.qrbase.xyz

www.qrbase.xyz · www.qrbase.xyz

Paid ping endpoints from QRBase on Base. GET /api/x402/ping (0.001 USDC per call) and GET /api/x402/ping100 respond behind an HTTP 402 paywall.

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Verify the domain www.qrbase.xyz 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

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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: 2026-09-16 12:24
      
        Last success: 2026-09-16
      
        Status: 404

Raw error

HTTP 404

Trust score

40/100

grade D · 9 criteria

Uptime

0.0%

5 direct probes · 30d

Observed inflow · 30d

—

no payment wallet declared

Dispute or improve this rating

D

Conformance score: 40/100

D-grade: significant issues, auth-gated, partially broken, or stale.

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 →

partial Skill declaration 6/10

Declares 1 skill, usable but thin.

            How to earn +4 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: www.qrbase.xyz (https://www.qrbase.xyz). 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

—

no direct probe retained

Skills

declared

Streaming

—

SSE-capable

Endpoints

Pricing x402 on Base per call USDC Third-party catalog Dispute or improve this rating

From $0.0010 per call

Endpoint	Price	Currency
`https://www.qrbase.xyz/api/x402/ping`	0.001	USDC
`https://www.qrbase.xyz/api/x402/ping100`	100.0	USDC

Try it ↗ Opens the operator's playground / docs in a new tab.

Agent card	`https://www.qrbase.xyz/.well-known/agent-card.json`
Provider	https://www.qrbase.xyz
Docs	https://www.qrbase.xyz

Discovered via

agentic_market recrawl_warm

Skills · 1 declared · mapped to canonical taxonomy

www.qrbase.xyz

Ping - 0.001 USDC on Base

canonical Data Engineering match 84%

Health · last 0 probes

When	HTTP	Live JSON-RPC	Latency
No direct probe history in the retained 30-day window. Upstream catalogue observations do not count as uptime probes.

Cheaper or better alternatives per-skill

      
      ↑ 1 higher quality

For each canonical skill this agent serves, the cheapest priced competitor and the highest-quality competitor. Only shown when at least one beats the current agent. Skills where this agent is already best on both axes are hidden.

Data Engineering oasf

50 other agents serve this

↑ Higher quality +20pts

Nansen

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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.

Markdown / HTML snippets

[![Agenstry grade](https://agenstry.com/badge/www.qrbase.xyz.svg)](https://agenstry.com/agents/www.qrbase.xyz)
[![Verified Business](https://agenstry.com/badge/www.qrbase.xyz/identity.svg)](https://agenstry.com/agents/www.qrbase.xyz)
[![Uptime](https://agenstry.com/badge/www.qrbase.xyz/uptime.svg)](https://agenstry.com/agents/www.qrbase.xyz)
[![A2A version](https://agenstry.com/badge/www.qrbase.xyz/protocol.svg)](https://agenstry.com/agents/www.qrbase.xyz)

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": "www-qrbase-xyz",
    "name": "www.qrbase.xyz",
    "description": "",
    "domain": "www.qrbase.xyz",
    "provider": "www.qrbase.xyz",
    "providerUrl": "",
    "category": "",
    "networks": [
      "Base"
    ],
    "enriched": false,
    "endpoints": [
      {
        "url": "https://www.qrbase.xyz/api/x402/ping",
        "description": "Ping - 0.001 USDC on Base",
        "pricing": {
          "amount": "0.001",
          "currency": "USDC",
          "network": "eip155:8453",
          "scheme": "exact",
          "maxAmount": "",
          "minAmount": ""
        },
        "method": "",
        "providerName": "",
        "parameters": [],
        "serviceName": "",
        "tags": [],
        "quality": {
          "l30DaysTotalCalls": "3",
          "l30DaysUniquePayers": "2"
        }
      },
      {
        "url": "https://www.qrbase.xyz/api/x402/ping100",
        "description": "Ping - 100 USDC on Base",
        "pricing": {
          "amount": "100",
          "currency": "USDC",
          "network": "eip155:8453",
          "scheme": "exact",
          "maxAmount": "",
          "minAmount": ""
        },
        "method": "",
        "providerName": "",
        "parameters": [],
        "serviceName": "",
        "tags": [],
        "quality": null
      }
    ],
    "integrationType": "",
    "isNew": false,
    "priceSummary": {
      "minAmount": "0.001",
      "maxAmount": "100",
      "avgCostPerTransaction": "50",
      "avgCostBasis": "exact",
      "currency": "USDC"
    },
    "serviceName": "",
    "tags": [],
    "iconUrl": ""
  }
}

Activity (audit trail)

Endpoints

Skills · 1 declared · mapped to canonical taxonomy

Health · last 0 probes

Cheaper or better alternatives per-skill

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Embed your Agenstry badge

Audit-grade evidence bundle

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