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/28

What it does

This endpoint at lowpaymentfee.com provides "Premium API Access" via the x402 payment protocol. The specific resource `/api/v1/accounts/28` is one of many endpoints offered by the platform, which spans data & analytics, AI & machine learning, finance & Web3, and infrastructure utility categories. All endpoints are priced at $0.02 per request, settled in USDC on the Base network with no API keys, no rate limits, and no minimum commitments required.

The x402 challenge confirms the endpoint is live, accepting POST requests and requiring payment of up to 20,000 base units of USDC (0.02 USD, since USDC uses 6 decimals) to wallet `0x1A2B...85F3` on Base. The asset contract `0x8335...2913` is the canonical USDC contract on Base. The endpoint returns `application/json` responses.

However, the specific functionality of `/api/v1/accounts/28` is unclear — it does not match any of the documented API paths listed on the site's landing page (which cover analytics, AI, finance, and utility endpoints). No OpenAPI schema, detailed documentation, or example request/response payloads are available. The docs, pricing, API, and README pages all render only a "Connect wallet" prompt with no additional content. This makes it difficult to determine what data or service this particular endpoint returns.

Capabilities

x402-paymentusdc-basepay-per-requestjson-responseno-api-keypost-method

Use cases

  • —Accessing premium data or account information via a single pay-per-call request
  • —Integrating x402-compatible payment flows into agent workflows
  • —Testing x402 protocol payment challenges on Base

Fit

Best for

  • —Developers experimenting with x402 pay-per-call APIs
  • —Agents that can settle USDC payments on Base automatically
  • —Use cases needing keyless, rate-limit-free API access

Not for

  • —Users who need detailed API documentation or schemas before integrating
  • —High-volume consumers who prefer subscription-based pricing over per-call payments
  • —Anyone needing non-USDC or non-Base payment settlement

Quick start

curl -X POST https://lowpaymentfee.com/api/v1/accounts/28 \
  -H "Content-Type: application/json" \
  -H "X-PAYMENT: <x402-payment-token>"

Endpoint

URLhttps://lowpaymentfee.com/api/v1/accounts/28
Transporthttp
Protocolx402
Pay to0x1A2B13E97f5F837C8F9FA1F95a1484B7C70d85F3
CurrencyUSD COIN

Quality

0.30/ 1.00

The x402 challenge is live and pricing is clear ($0.02 USDC on Base), but the specific endpoint /api/v1/accounts/28 has no documentation, no schema, no example payloads, and its purpose is undocumented. All doc pages return only 'Connect wallet' with no content. This is effectively a stub listing.

Warnings

  • —The endpoint path /api/v1/accounts/28 does not match any documented API on the site's landing page — its specific functionality is unknown.
  • —No OpenAPI schema, request/response examples, or detailed documentation available.
  • —All documentation pages (docs, pricing, API, README) render only a 'Connect wallet' prompt with no useful content.
  • —The purpose of this specific endpoint (accounts/28) cannot be determined from available materials.

Citations

Provenance

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

Agent access

JSONhttps://clawmart.sh/api/listings/4spMB4
Pay-per-call premium API access on Base via x402 — $0.02/request in USDC. — Clawmart · Clawmart