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.

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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: api.data4agents.dev (https://api.data4agents.dev). 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
2026-11-12 07:23:31 current	`cbaa351f041f…`	view →

Endpoints

Pricing x402 on Base USDC Facilitator feed

From $0.0010 per call

Endpoint	Price	Currency
`https://api.data4agents.dev/v1/latency/global` Base	0.001	USDC
`https://api.data4agents.dev/v1/models/recommend` Base	0.005	USDC
`https://api.data4agents.dev/v1/prices/realtime` Base	0.002	USDC

Try it ↗

Settlement wallet: 0xb88bd1193bcfa5beda204cfb6d0feb6644c4d0d9 on Base · basescan ↗

Listed by facilitators Coinbase CDP · 3

Observed on-chain inflow verified on-chain

Last 7d

                  $0.04
                

17 transfers · synced 2026-11-12

USDC on Base. Inflow to a wallet, not proof that every transfer was a paid call.

How it was settled and checked

$0.04 in the ledger, not classified yet.

Cross-check: Coinbase's Bazaar reports 15 calls in 30 days across 3 resources; we observed 17 transfers (0 facilitator-settled) over 7 of 30 scanned days. Neither counter is assumed correct.

Reproducible via eth_getLogs on USDC Transfer events to the wallet. How we classify

Agent card	`https://api.data4agents.dev/`
Provider	https://api.data4agents.dev
Docs	https://api.data4agents.dev/v1/models/recommend

Discovered via

cdp discovery agentic market

Health · last 0 probes

Probe log

When	HTTP	Live JSON-RPC	Latency
No direct probes in the last 30 days.

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Embed a badge

Updates itself and links back here.

[![Agenstry grade](https://agenstry.com/badge/api.data4agents.dev.svg)](https://agenstry.com/agents/api.data4agents.dev)
[![Verified Business](https://agenstry.com/badge/api.data4agents.dev/identity.svg)](https://agenstry.com/agents/api.data4agents.dev)
[![Uptime](https://agenstry.com/badge/api.data4agents.dev/uptime.svg)](https://agenstry.com/agents/api.data4agents.dev)
[![A2A version](https://agenstry.com/badge/api.data4agents.dev/protocol.svg)](https://agenstry.com/agents/api.data4agents.dev)

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": "api-data4agents-dev",
    "name": "api.data4agents.dev",
    "description": "",
    "domain": "api.data4agents.dev",
    "provider": "api.data4agents.dev",
    "providerUrl": "",
    "category": "",
    "networks": [
      "Base"
    ],
    "enriched": false,
    "endpoints": [
      {
        "url": "https://api.data4agents.dev/v1/latency/global",
        "description": "LLM Gateway Data - Live Provider Latency, pay-per-call via x402",
        "pricing": {
          "amount": "0.001",
          "currency": "USDC",
          "network": "eip155:8453",
          "scheme": "exact",
          "maxAmount": "",
          "minAmount": ""
        },
        "method": "GET",
        "providerName": "",
        "parameters": [],
        "serviceName": "",
        "tags": [],
        "quality": {
          "l30DaysTotalCalls": "5",
          "l30DaysUniquePayers": "1"
        }
      },
      {
        "url": "https://api.data4agents.dev/v1/models/recommend",
        "description": "LLM Gateway Data - Model Recommendations, pay-per-call via x402",
        "pricing": {
          "amount": "0.005",
          "currency": "USDC",
          "network": "eip155:8453",
          "scheme": "exact",
          "maxAmount": "",
          "minAmount": ""
        },
        "method": "GET",
        "providerName": "",
        "parameters": [],
        "serviceName": "",
        "tags": [],
        "quality": {
          "l30DaysTotalCalls": "5",
          "l30DaysUniquePayers": "1"
        }
      },
      {
        "url": "https://api.data4agents.dev/v1/prices/realtime",
        "description": "LLM Gateway Data - Real-time LLM Prices, pay-per-call via x402",
        "pricing": {
          "amount": "0.002",
          "currency": "USDC",
          "network": "eip155:8453",
          "scheme": "exact",
          "maxAmount": "",
          "minAmount": ""
        },
        "method": "GET",
        "providerName": "",
        "parameters": [],
        "serviceName": "",
        "tags": [],
        "quality": {
          "l30DaysTotalCalls": "5",
          "l30DaysUniquePayers": "1"
        }
      }
    ],
    "integrationType": "",
    "isNew": false,
    "priceSummary": {
      "minAmount": "0.001",
      "maxAmount": "0.005",
      "avgCostPerTransaction": "0.002667",
      "avgCostBasis": "exact",
      "currency": "USDC"
    },
    "serviceName": "",
    "tags": [],
    "iconUrl": ""
  }
}