Discover / anibalb.duckdns.org

Proyecto Ayuda Data API

■ Challenge detected

Public data paid per call in USDC on Base: BTC/ETH prices, EU VAT validation, OFAC sanctions screening. No API keys, no accounts.

Listed price
$0.001
Challenge detected
3 of the last 9 checks
Median response
572 ms
Last checked
16 Oct, 18:49 UTC
In our index since
5 Oct 2026

Endpoint

curl -i https://anibalb.duckdns.org/x402/btc-price
# 402 Payment Required: pay with an x402 client (USDC on Base),
# then send the same request again with the payment attached.
4 listed endpoints · on x402-list.com

Checks and payment terms on this page refer to the endpoint above. Other listed endpoints have not been checked individually.

Base URLhttps://anibalb.duckdns.org/x402

  • GET/eth-price$0.001Precio actual de ETH en USD (fuente: CoinGecko publico)
  • GET/sanctions-check$0.005Busca un nombre en la lista de sanciones OFAC (SDN). Parametro: name
  • GET/btc-price$0.001Precio actual de BTC en USD (fuente: CoinGecko publico)
  • GET/vat-check$0.005Valida un numero de IVA de la UE (VIES). Parametros: country (ej DE), vat (ej 123456789)

A dash means the listing gives no price or method. Copy buttons copy the full URL.

Showing 4 of 4 listed endpoints.

Agents can find it through the Superstables MCP server and JSON API: GET /api/v1/services/anibalb.duckdns.org

Recent checks

5 Oct 2026One bar per check, showing up to 20 recent checks. Coloured bars show relative response time, with a minimum visible height; full-height grey bars mean no challenge was detected. “Challenge detected” means HTTP 402 or another detected payment-challenge signal.16 Oct 2026
All 9 checks
When (UTC)ResultHTTPResponse
16 Oct, 18:49 UTCChallenge detected402572ms
15 Oct, 14:11 UTCChallenge detected402550ms
14 Oct, 08:45 UTCChallenge detected402596ms
12 Oct, 22:31 UTCNo challenge detected2001162ms
11 Oct, 00:15 UTCNo challenge detected8001ms
9 Oct, 15:32 UTCNo challenge detected2001177ms
8 Oct, 09:33 UTCNo challenge detected2001117ms
7 Oct, 06:40 UTCNo challenge detected2001070ms
5 Oct, 05:04 UTCNo challenge detected2001111ms

Questions

Did our last probe detect a payment challenge?

At our last probe on 16 Oct, 18:49 UTC, it returned HTTP 402 or another detected payment-challenge signal. This check did not test payment, delivery or compatibility with the Superstables client.

What price is recorded for Proyecto Ayuda Data API?

Its listed price is $0.001.

What payment terms does Proyecto Ayuda Data API advertise?

The listing advertises x402, Base and USDC. Check the seller's current payment challenge and authentication requirements before paying.

Where is Proyecto Ayuda Data API listed?

In x402-list.com. Superstables first indexed it on 5 Oct 2026.

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