Catalogue listing, not an A2A agent: a paid API listed by cdp_discovery. Scored on the 3 criteria that apply (24 of 40 points, scaled to 100); the A2A card criteria do not apply.

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partial Live endpoint 15/25

Our probe received an HTTP 402 payment challenge from the host: live, but paid.

partial Verified Identity 5/10

Provider declared: api.gptshopltd.com (https://api.gptshopltd.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
2026-11-02 14:16:05 current	`f2df1f76fa91…`	view →

Endpoints

Pricing x402 on Base / Solana USDC Verified live · 402 challenge

From $0.0010 per call

Endpoint	Price	Currency
`https://api.gptshopltd.com/v1/util/ping` Base · live 402	0.001	USDC
`https://api.gptshopltd.com/v1/util/ping` Solana · live 402	0.001	USDC
`https://api.gptshopltd.com/v1/util/uuid` Base · live 402	0.001	USDC
`https://api.gptshopltd.com/v1/util/uuid` Solana · live 402	0.001	USDC
`https://api.gptshopltd.com/v1/util/time` Base · live 402	0.001	USDC
`https://api.gptshopltd.com/v1/util/time` Solana · live 402	0.001	USDC
`https://api.gptshopltd.com/v1/solana/token-risk` Base · declared in manifest	—	USDC
`https://api.gptshopltd.com/v1/base/token-risk` Base · declared in manifest	—	USDC
`https://api.gptshopltd.com/v1/prices/llm` Base · declared in manifest	—	USDC
`https://api.gptshopltd.com/v1/prices/gpu` Base · declared in manifest	—	USDC
`https://api.gptshopltd.com/v1/web/markdown` Base · declared in manifest	—	USDC
`https://api.gptshopltd.com/v1/evm/4byte` Base · declared in manifest	—	USDC
`https://api.gptshopltd.com/v1/web/status` Base · declared in manifest	—	USDC
`https://api.gptshopltd.com/v1/crypto/price` Base · declared in manifest	—	USDC
`https://api.gptshopltd.com/v1/dns/lookup` Base · declared in manifest	—	USDC

Try it ↗

Observed inflow wallet: 0x51dec2df04885ba291fc56125dd7c7d85a8ce44e on Base · basescan ↗

Listed by facilitators PayAI · 1

Observed on-chain inflow verified on-chain

Last 7d

                  $0.01
                

6 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

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

Payment authenticity How we measure this →

Concentrated payers 3/5

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

Daily settled amounts repeat identically across days, which is consistent with scheduled or scripted activity as well as with flat-rate demand.

$0.01 assessed 6 transactions 2/16 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

2 evidence caveats · measured 2026-11-04.
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 card	`https://api.gptshopltd.com/`
Provider	https://api.gptshopltd.com/
Docs	https://api.gptshopltd.com/v1/util/ping

Discovered via

cdp discovery

Skills · 1 declared

Api

Cheapest possible paid call for testing an x402 client end to end. Returns pong plus server time. $0.001.

AI Inference Query match 90%

Health · last 1 probes

Probe log

When	HTTP	Live JSON-RPC	Latency
2026-11-02 15:32:31	404	—	—

Cheaper or better alternatives

      
      ↑ 1 higher quality

AI Inference Query ml

50 other agents serve this

↑ Higher quality +30pts

www.x402scan.com

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Embed a badge

Updates itself and links back here.

[![Agenstry grade](https://agenstry.com/badge/api.gptshopltd.com.svg)](https://agenstry.com/agents/api.gptshopltd.com)
[![Verified Business](https://agenstry.com/badge/api.gptshopltd.com/identity.svg)](https://agenstry.com/agents/api.gptshopltd.com)
[![Uptime](https://agenstry.com/badge/api.gptshopltd.com/uptime.svg)](https://agenstry.com/agents/api.gptshopltd.com)
[![A2A version](https://agenstry.com/badge/api.gptshopltd.com/protocol.svg)](https://agenstry.com/agents/api.gptshopltd.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": "cdp_discovery",
  "resource_count": 1,
  "sample": "https://api.gptshopltd.com/v1/util/ping"
}