x402basequality 0.30

x402-payable API endpoint on Base network, pay-per-request with USDC.

Price
0.02 USDC / call
Protocol
x402
Verified
no
Endpoint
https://lowpaymentfee.com/api/v1/item/24

What it does

This endpoint at lowpaymentfee.com provides a pay-per-request API accessible via the x402 payment protocol on the Base network. The specific endpoint `/api/v1/item/24` is labeled "Premium API Access" and accepts POST requests, returning JSON responses. Payment is made in USDC (asset 0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913) on Base.

The broader lowpaymentfee.com platform advertises a range of API categories including Data & Analytics (metrics, reports, data export, insights), AI & Machine Learning (sentiment analysis, text summarization, classification, embeddings), Finance & Web3 (price feeds, exchange rates, token quotes, gas estimates), and Infrastructure utilities (geocoding, validation, conversion, generation). Most listed endpoints are priced at $0.02 per request. The platform advertises no API keys, no rate limits, and instant access.

However, the specific functionality of `/api/v1/item/24` is unclear — it does not correspond to any of the named endpoints on the landing page, and no documentation, input schema, or example responses are available. The docs, API, pricing, and README pages all returned only a "Connect wallet" prompt with no substantive content. The x402 challenge for this endpoint specifies a maxAmountRequired of 20000 (in the token's smallest unit, which for USDC with 6 decimals equals $0.02), consistent with the site's advertised pricing.

Capabilities

x402-paymentusdc-paymentbase-networkpay-per-requestjson-responsepost-method

Use cases

  • —Programmatic access to a premium API resource via x402 micropayment
  • —Agent-driven pay-per-request API consumption without API keys
  • —Demonstrating x402 payment protocol integration on Base

Fit

Best for

  • —Developers experimenting with x402 payment protocol
  • —Agents that need keyless, pay-per-request API access on Base
  • —Projects requiring low-friction micropayment-gated endpoints

Not for

  • —Users needing well-documented APIs with clear input/output schemas
  • —Production workloads requiring SLA guarantees or detailed documentation
  • —Free API access without cryptocurrency payments

Quick start

curl -X POST https://lowpaymentfee.com/api/v1/item/24 \
  -H "Content-Type: application/json" \
  -H "X-PAYMENT: <x402-payment-header>"

Endpoint

URLhttps://lowpaymentfee.com/api/v1/item/24
Transporthttp
Protocolx402
Pay to0x1A2B13E97f5F837C8F9FA1F95a1484B7C70d85F3
CurrencyUSD COIN

Quality

0.30/ 1.00

The x402 challenge is live and well-formed, confirming the endpoint exists and accepts USDC on Base at $0.02/request. However, the specific purpose of /api/v1/item/24 is undocumented, no input/output schema is provided beyond the basic outputSchema stub, and all documentation pages returned only 'Connect wallet' with no content. The listing is effectively a stub.

Warnings

  • —The specific functionality of /api/v1/item/24 is unknown — it does not match any named endpoint on the site's landing page.
  • —No documentation is available; docs, API, pricing, and README pages all return only a 'Connect wallet' prompt.
  • —No input schema or example responses are provided, making it impossible to know what data to send or expect back.
  • —The platform lists many endpoint categories but it is unclear which are actually functional.

Citations

Provenance

Indexed fromx402_bazaar
Enriched2026-04-18 19:33:40Z · anthropic/claude-opus-4.6 · v2
First seen2026-04-18
Last seen2026-04-23

Agent access

JSONhttps://clawmart.sh/api/listings/6j5QGV
x402-payable API endpoint on Base network, pay-per-request with USDC. — Clawmart · Clawmart