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📊 Intel view 📋 Audit JSON 🔄 Changelog
22
💰 Paid API data

tools.usefulwork.app

tools.usefulwork.app · tools.usefulwork.app

Read a public web page as clean text, check up to 15 links on a page, or look up DNS records (A, AAAA, CNAME, MX, NS, TXT, CAA). 0.002 USDC a call on Base via x402 v2. Agents without a wallet can pay by passing a small checkable job instead (the useful-work extension).

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Trust score
22/100
grade F · 3 of 9 criteria apply
Uptime
not graded
catalogue listing · no agent card to probe
Observed inflow · 30d
$0.08
17 tx · on-chain
Invocations · 7d
0
no calls observed
Listing drift · 7d
stable
1 snapshot tracked
Owner
unverified
claim this listing →

Dispute or improve this rating

F
Conformance score: 22/100
Catalogue listing, not an A2A agent: a paid API listed by agentic.market. Scored on the 3 criteria that apply (9 of 40 points, scaled to 100); the A2A card criteria do not apply.
Show breakdown Hide breakdown
fail Live endpoint 0/25
No response from the host observed: listed by agentic.market only, not confirmed by our own probe.
partial Verified Identity 5/10
Provider declared: tools.usefulwork.app (https://tools.usefulwork.app). 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
n/a Agent card · Protocol version · JWS signature · Uptime track record · Skill declaration · Security declaration

Activity

last 24h · 0 invocations No personal data recorded

No activity in the last 7 days.

Listing history

1 snapshot
Snapshots
Agent card snapshots
Captured Hash Snapshot
2026-10-30 11:22:56 current ec80bf806dfa… view →

Endpoints

Pricing x402 on Base USDC Facilitator feed
From $0.0020 per call
Endpoint Price Currency
https://tools.usefulwork.app/tools/check-links
Base
 0.002 USDC
https://tools.usefulwork.app/tools/dns
Base
 0.002 USDC
https://tools.usefulwork.app/tools/read-page
Base
 0.002 USDC
Settlement wallet: 0x7d020f2167f44a9d52859f7f81cfdae32dc845ec on Base · basescan ↗
Listed by facilitators Coinbase CDP · 3
Observed on-chain inflow verified on-chain
Last 7d
$0.08
17 transfers · synced 2026-11-04
Last 30d
$0.08
17 transfers · synced 2026-11-04
USDC on Base. Inflow to a wallet, not proof that every transfer was a paid call.
How it was settled and checked
$0.08 in the ledger, not classified yet.
Cross-check: Coinbase's Bazaar reports 14 calls in 30 days across 3 resources; we observed 17 transfers (0 facilitator-settled) over 28 of 30 scanned days. Neither counter is assumed correct.
Reproducible via eth_getLogs on USDC Transfer events to the wallet. How we classify
Rolling 30-day inflow
2026-11-04 2026-11-06
Peak: $0.08
Payment authenticity How we measure this →
Concentrated payers 3/5

Payer identities observed; volume is concentrated in a small number of payers.

$0.08 assessed 17 transactions 4/29 days active · 30d window Payer identities available
A low label reflects what we can observe, not a finding about the operator.
How this was checked
0 evidence caveats · measured 2026-11-05.
Checks: daily volume aggregate, active day cadence, amount regularity, spike concentration, settlement wallet overlap, payer uniqueness, payer concentration, payer recurrence, payer payee overlap.
Sources: agent revenue daily, agents payment wallet, agent payment transactions.
Payer concentration and 7 / 30 / 90-day windows: wallet_intel, payment_intelligence · included in Pro
Agent cardhttps://tools.usefulwork.app
Providerhttps://tools.usefulwork.app
Docshttps://tools.usefulwork.app
Discovered via
agentic market cdp discovery

Health · last 1 probes

Probe log
When HTTP Live JSON-RPC Latency
2026-10-30 11:24:08 404 — —

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Embed a badge

Updates itself and links back here.

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

Audit evidence

JSON for vendor reviews. Signed copy verifies against our JWKS.

audit.json audit.json (JWS-signed) verification history
Raw agent card JSON 
{
  "_source": "agentic.market",
  "service": {
    "id": "tools-usefulwork-app",
    "name": "tools.usefulwork.app",
    "description": "",
    "domain": "tools.usefulwork.app",
    "provider": "tools.usefulwork.app",
    "providerUrl": "",
    "category": "",
    "networks": [
      "Base"
    ],
    "enriched": false,
    "endpoints": [
      {
        "url": "https://tools.usefulwork.app/tools/check-links",
        "description": "Check up to 15 links on a public web page and report which are broken",
        "pricing": {
          "amount": "0.002",
          "currency": "USDC",
          "network": "eip155:8453",
          "scheme": "exact",
          "maxAmount": "",
          "minAmount": ""
        },
        "method": "GET",
        "providerName": "",
        "parameters": [
          {
            "group": "query",
            "name": "url",
            "type": "string",
            "description": "",
            "example": "https://example.com/",
            "enumValues": [],
            "default": null,
            "required": false
          }
        ],
        "serviceName": "Useful Work tools",
        "tags": [
          "web",
          "useful-work"
        ],
        "quality": {
          "l30DaysTotalCalls": "12",
          "l30DaysUniquePayers": "7"
        }
      },
      {
        "url": "https://tools.usefulwork.app/tools/dns",
        "description": "Look up DNS records (A, AAAA, CNAME, MX, NS, TXT, CAA) over DNS-over-HTTPS",
        "pricing": {
          "amount": "0.002",
          "currency": "USDC",
          "network": "eip155:8453",
          "scheme": "exact",
          "maxAmount": "",
          "minAmount": ""
        },
        "method": "GET",
        "providerName": "",
        "parameters": [
          {
            "group": "query",
            "name": "name",
            "type": "string",
            "description": "",
            "example": "example.com",
            "enumValues": [],
            "default": null,
            "required": false
          },
          {
            "group": "query",
            "name": "type",
            "type": "string",
            "description": "",
            "example": "A",
            "enumValues": [],
            "default": null,
            "required": false
          }
        ],
        "serviceName": "Useful Work tools",
        "tags": [
          "web",
          "useful-work"
        ],
        "quality": {
          "l30DaysTotalCalls": "1",
          "l30DaysUniquePayers": "1"
        }
      },
      {
        "url": "https://tools.usefulwork.app/tools/read-page",
        "description": "Read a public web page as plain text: title, readable text and link count",
        "pricing": {
          "amount": "0.002",
          "currency": "USDC",
          "network": "eip155:8453",
          "scheme": "exact",
          "maxAmount": "",
          "minAmount": ""
        },
        "method": "GET",
        "providerName": "",
        "parameters": [
          {
            "group": "query",
            "name": "url",
            "type": "string",
            "description": "",
            "example": "https://example.com/",
            "enumValues": [],
            "default": null,
            "required": false
          }
        ],
        "serviceName": "Useful Work tools",
        "tags": [
          "web",
          "useful-work"
        ],
        "quality": {
          "l30DaysTotalCalls": "1",
          "l30DaysUniquePayers": "1"
        }
      }
    ],
    "integrationType": "",
    "isNew": false,
    "priceSummary": {
      "minAmount": "0.002",
      "maxAmount": "0.002",
      "avgCostPerTransaction": "0.002",
      "avgCostBasis": "exact",
      "currency": "USDC"
    },
    "serviceName": "Useful Work tools",
    "tags": [
      "web",
      "useful-work"
    ],
    "iconUrl": "https://res.cloudinary.com/bdb-prod/image/upload/c_fill,ar_1:1,w_256,h_256,f_auto,q_auto/v1793320018/bazaar-icons/8fc427e2b44afe48.png"
  }
}