Catalogue listing, not an A2A agent: a paid API listed by agentic.market. Scored on the 3 criteria that apply (19 of 40 points, scaled to 100); the A2A card criteria do not apply.

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partial Live endpoint 10/25

The host publishes a payment manifest; we have not yet observed a live 402 challenge.

partial Verified Identity 5/10

Provider declared: linkproof.zopip.com (https://linkproof.zopip.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

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
2026-11-15 03:57:16 current	`e352d102b214…`	view →

Endpoints

Browse x402 resources on this host

Pricing x402 Self-declared · /.well-known/x402

Endpoint	Price	Currency
`https://linkproof.zopip.com/v1/verify-links`	—
`https://linkproof.zopip.com/v1/verify-citations`	—
`https://linkproof.zopip.com/v1/find-archive`	—

Try it ↗

Settlement wallet: 0x80042a9f07df4373fa72a798c9764aea7863c2ec on Base · basescan ↗

Listed by facilitators Coinbase CDP · 3

Agent card	`https://linkproof.zopip.com`
Provider	https://linkproof.zopip.com
Docs	https://linkproof.zopip.com

Discovered via

agentic market

Health · last 1 probes

Probe log

When	HTTP	Live JSON-RPC	Latency
2026-11-15 08:45:16	404	—	—

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Embed a badge

Updates itself and links back here.

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

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": "linkproof-zopip-com",
    "name": "linkproof.zopip.com",
    "description": "",
    "domain": "linkproof.zopip.com",
    "provider": "linkproof.zopip.com",
    "providerUrl": "",
    "category": "",
    "networks": [
      "Base"
    ],
    "enriched": false,
    "endpoints": [
      {
        "url": "https://linkproof.zopip.com/v1/find-archive",
        "description": "LinkProof archive: for up to 10 URLs (e.g. dead links), find the closest Internet Archive Wayback Machine snapshot, optionally nearest to a given date. Returns snapshot URL, capture timestamp, captured HTTP status and distance in days from the requested date. Use it to replace or back up rotted citations.",
        "pricing": {
          "amount": "0.005",
          "currency": "USDC",
          "network": "eip155:8453",
          "scheme": "exact",
          "maxAmount": "",
          "minAmount": ""
        },
        "method": "POST",
        "providerName": "",
        "parameters": [
          {
            "group": "body",
            "name": "urls",
            "type": "array",
            "description": "",
            "example": [],
            "enumValues": [],
            "default": null,
            "required": false
          }
        ],
        "serviceName": "LinkProof",
        "tags": [
          "archive",
          "wayback",
          "dead-link",
          "url",
          "citation"
        ],
        "quality": {
          "l30DaysTotalCalls": "1",
          "l30DaysUniquePayers": "1"
        }
      },
      {
        "url": "https://linkproof.zopip.com/v1/verify-citations",
        "description": "LinkProof citations: verify up to 10 references an agent is about to cite. Accepts DOI, arXiv id, PubMed id, free-text reference, or {title, authors, year}. Checks Crossref/DataCite, arXiv and PubMed; returns per citation exists, matched metadata (title, authors, year, venue, URL), field mismatches, confidence and verdict (verified, mismatch, not_found). Catches hallucinated or misattributed papers.",
        "pricing": {
          "amount": "0.01",
          "currency": "USDC",
          "network": "eip155:8453",
          "scheme": "exact",
          "maxAmount": "",
          "minAmount": ""
        },
        "method": "POST",
        "providerName": "",
        "parameters": [
          {
            "group": "body",
            "name": "citations",
            "type": "array",
            "description": "",
            "example": [],
            "enumValues": [],
            "default": null,
            "required": false
          }
        ],
        "serviceName": "LinkProof",
        "tags": [
          "citation",
          "doi",
          "verification",
          "hallucination",
          "research"
        ],
        "quality": {
          "l30DaysTotalCalls": "1",
          "l30DaysUniquePayers": "1"
        }
      },
      {
        "url": "https://linkproof.zopip.com/v1/verify-links",
        "description": "LinkProof: verify up to 10 URLs before an agent cites or sends them. Per URL returns verdict (live, soft_404, parked, dead, blocked, unreachable), HTTP status, final URL after redirects, title, meta description, and optional check that an expected phrase appears on the page. Catches hallucinated or rotted links.",
        "pricing": {
          "amount": "0.005",
          "currency": "USDC",
          "network": "eip155:8453",
          "scheme": "exact",
          "maxAmount": "",
          "minAmount": ""
        },
        "method": "POST",
        "providerName": "",
        "parameters": [
          {
            "group": "body",
            "name": "urls",
            "type": "array",
            "description": "",
            "example": [],
            "enumValues": [],
            "default": null,
            "required": false
          }
        ],
        "serviceName": "LinkProof",
        "tags": [
          "url",
          "link-checker",
          "citation",
          "verification",
          "hallucination"
        ],
        "quality": {
          "l30DaysTotalCalls": "1",
          "l30DaysUniquePayers": "1"
        }
      }
    ],
    "integrationType": "",
    "isNew": false,
    "priceSummary": {
      "minAmount": "0.005",
      "maxAmount": "0.01",
      "avgCostPerTransaction": "0.006667",
      "avgCostBasis": "exact",
      "currency": "USDC"
    },
    "serviceName": "LinkProof",
    "tags": [
      "archive",
      "wayback",
      "dead-link",
      "url",
      "citation",
      "doi",
      "verification",
      "hallucination",
      "research",
      "link-checker"
    ],
    "iconUrl": ""
  }
}