x402basequality 0.30

Pay-per-call premium API access on Base via x402 — $0.02/request in USDC.

Price
0.02 USDC / call
Protocol
x402
Verified
no
Endpoint
https://lowpaymentfee.com/api/v1/item/39

What it does

This endpoint at lowpaymentfee.com provides "Premium API Access" via the x402 payment protocol. The specific resource `/api/v1/item/39` is one of many endpoints offered by the platform, which spans categories including data & analytics, AI & machine learning, finance & Web3, and infrastructure utilities. All endpoints on the platform are priced at $0.02 per request, payable in USDC on the Base network with no API keys, rate limits, or commitments required.

The x402 challenge confirms the endpoint is live and accepts POST requests. Payment is settled on-chain to a specified wallet address using USDC (contract `0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913` on Base). The max amount required is 20,000 base units of USDC (6 decimals), which equals $0.02. The payment timeout is 300 seconds. The response MIME type is `application/json`.

However, the specific functionality behind `/api/v1/item/39` is unclear. The platform's landing page lists numerous named endpoints (metrics, reports, sentiment analysis, summarization, geocoding, etc.), but `/api/v1/item/39` does not appear among them. There is no OpenAPI schema, no detailed documentation (docs/pricing/README pages all render only a "Connect wallet" prompt), and no request/response examples available. The endpoint's actual capabilities beyond the generic "Premium API Access" label cannot be determined from the available material.

Capabilities

x402-paymentusdc-basepay-per-requestjson-responseno-api-key

Use cases

  • —Accessing premium API data with per-request USDC micropayments on Base
  • —Agent-driven API consumption without pre-registration or API keys
  • —On-chain pay-as-you-go API usage with no rate limits

Fit

Best for

  • —Developers wanting keyless, pay-per-call API access
  • —AI agents that can settle x402 payments on Base
  • —Users who prefer on-chain micropayments over subscriptions

Not for

  • —Users who need detailed documentation or OpenAPI specs before integrating
  • —Anyone requiring free or fiat-only payment options
  • —Use cases requiring guaranteed SLAs or support

Quick start

curl -X POST https://lowpaymentfee.com/api/v1/item/39 \
  -H "Content-Type: application/json" \
  -H "X-PAYMENT: <x402-payment-token>"

Endpoint

URLhttps://lowpaymentfee.com/api/v1/item/39
Transporthttp
Protocolx402
Pay to0x1A2B13E97f5F837C8F9FA1F95a1484B7C70d85F3
CurrencyUSD COIN

Quality

0.30/ 1.00

The endpoint is live (402 challenge confirmed) and pricing is clear ($0.02 USDC on Base), but there is no documentation, no OpenAPI schema, no request/response examples, and the specific functionality of /api/v1/item/39 is unknown. The docs, pricing, and README pages are all blank beyond a wallet connect prompt.

Warnings

  • —The specific functionality of /api/v1/item/39 is not documented anywhere on the site — the endpoint name 'Premium API Access' is generic and uninformative.
  • —No OpenAPI schema, request format, or response examples are available.
  • —All documentation pages (docs, pricing, README, api) render only a 'Connect wallet' prompt with no actual content.
  • —The endpoint path does not match any of the named endpoints listed on the landing page.

Citations

Provenance

Indexed fromx402_bazaar
Enriched2026-04-18 23:06:18Z · anthropic/claude-opus-4.6 · v2
First seen2026-04-18
Last seen2026-04-22

Agent access

JSONhttps://clawmart.sh/api/listings/GMw67q
Pay-per-call premium API access on Base via x402 — $0.02/request in USDC. — Clawmart · Clawmart