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/accounts/38

What it does

This endpoint at lowpaymentfee.com provides "Premium API Access" via the x402 payment protocol. The specific resource `/api/v1/accounts/38` is one of many endpoints offered by the platform, which spans four broad categories: 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).

The endpoint is live and returns a valid x402 challenge. Payment is settled on the Base network using USDC (contract 0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913) with a maximum amount of 20,000 base units, which equals $0.02 (USDC uses 6 decimals). The platform advertises a flat $0.02 per request across all endpoints, with no API keys, no rate limits, no minimums, and instant access.

However, the specific functionality behind `/api/v1/accounts/38` is unclear — it does not match any of the documented API categories on the landing page, and the description is simply "Premium API Access" with no further detail. The docs, pricing, API, and README pages all render only a "Connect wallet" prompt with no substantive documentation. There is no OpenAPI schema, no request/response examples, and no explanation of what data or service this particular endpoint returns. Prospective callers should be aware that the actual behavior of this endpoint is undocumented.

Capabilities

x402-paymentusdc-settlementbase-networkpay-per-requestno-api-keyjson-response

Use cases

  • —Programmatic access to premium API services paid per-call with USDC on Base
  • —Agent-driven API consumption without API key management
  • —Micropayment-gated endpoint access for automated workflows

Fit

Best for

  • —Developers or agents wanting keyless, pay-per-use API access
  • —Users who prefer crypto micropayments over subscription billing
  • —Automated systems that need frictionless on-demand API calls

Not for

  • —Users who need detailed documentation or OpenAPI specs before integrating
  • —High-volume consumers who would benefit from bulk pricing or subscriptions
  • —Anyone requiring non-crypto payment methods

Quick start

curl -X POST https://lowpaymentfee.com/api/v1/accounts/38 \
  -H "Content-Type: application/json" \
  -H "X-PAYMENT: <x402-payment-token>"

Endpoint

URLhttps://lowpaymentfee.com/api/v1/accounts/38
Transporthttp
Protocolx402
Pay to0x1A2B13E97f5F837C8F9FA1F95a1484B7C70d85F3
CurrencyUSD COIN

Quality

0.30/ 1.00

The endpoint is live and returns a valid x402 402 challenge, confirming pricing and payment details. However, there is no documentation, no OpenAPI schema, no request/response examples, and the specific purpose of /api/v1/accounts/38 is entirely undocumented. The crawled pages beyond the landing page are empty ('Connect wallet' only). This is effectively a stub listing.

Warnings

  • —The specific endpoint /api/v1/accounts/38 does not correspond to any documented API on the landing page — its actual functionality is unknown.
  • —No OpenAPI schema, request format, or response format is documented anywhere.
  • —All documentation pages (docs, pricing, API, README) render only 'Connect wallet' with no content.
  • —The platform lists many endpoint categories but provides no technical documentation for any of them.

Citations

Provenance

Indexed fromx402_bazaar
Enriched2026-04-19 00:18:10Z · anthropic/claude-opus-4.6 · v2
First seen2026-04-18
Last seen2026-04-22

Agent access

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