x402basequality 0.30

Pay-per-call premium API endpoint on Base via x402, settled in USDC at $0.02/request.

Price
0.02 USDC / call
Protocol
x402
Verified
no
Endpoint
https://lowpaymentfee.com/api/endpoint-7

What it does

This endpoint at `/api/endpoint-7` is part of the lowpaymentfee.com platform, which offers a collection of pay-per-request APIs spanning data & analytics, AI & machine learning, finance & Web3, and infrastructure utilities. All endpoints use the x402 payment protocol, settling in USDC on the Base network. The platform advertises a flat $0.02 per request with no API keys, no rate limits, and instant access.

The specific endpoint `/api/endpoint-7` is labeled "Premium API Access" but its exact functionality is not documented — it does not correspond to any of the named endpoints listed on the site's landing page (which use `/api/v1/` and `/api/v2/` path prefixes). The x402 challenge confirms it is live and accepts POST requests, paying out to a Base-network address in USDC. The `maxAmountRequired` of 20000 base units (USDC has 6 decimals) translates to $0.02, consistent with the site-wide pricing.

Documentation is extremely sparse. The docs, API, pricing, and README pages all render only a "Connect wallet" prompt with no further content. There is no OpenAPI schema, no request/response examples, and no description of what this particular endpoint returns. Prospective callers should be aware that the actual behavior of `/api/endpoint-7` is unknown beyond the x402 payment metadata.

Capabilities

x402-paymentusdc-settlementbase-networkpay-per-requesthttp-post

Use cases

  • —Programmatic access to a premium API endpoint with per-call USDC micropayments
  • —Agent-driven workflows that need keyless, pay-as-you-go API access on Base
  • —Testing x402 payment protocol integrations against a live endpoint

Fit

Best for

  • —Developers experimenting with x402 payment flows
  • —Agents that can settle USDC on Base for per-call API access
  • —Low-commitment, no-signup API consumption

Not for

  • —Users who need documented request/response schemas before calling
  • —High-volume use cases where per-call pricing may add up without bulk discounts
  • —Anyone requiring non-crypto payment methods

Quick start

curl -X POST https://lowpaymentfee.com/api/endpoint-7 \
  -H "Content-Type: application/json" \
  -H "X-PAYMENT: <x402-payment-token>"

Endpoint

URLhttps://lowpaymentfee.com/api/endpoint-7
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 zero documentation on what this endpoint actually does. No OpenAPI schema, no request/response examples, and the docs pages are empty. The endpoint path does not match any of the named APIs on the landing page, making its purpose entirely unknown.

Warnings

  • —The specific functionality of /api/endpoint-7 is undocumented and does not match any named endpoint on the site
  • —All documentation pages (docs, API, pricing, README) render only a 'Connect wallet' prompt with no useful content
  • —No OpenAPI schema or request/response examples are available
  • —No robots.txt or agents.txt present

Citations

Provenance

Indexed fromx402_bazaar
Enriched2026-04-18 20:32:59Z · anthropic/claude-opus-4.6 · v2
First seen2026-04-18
Last seen2026-04-23

Agent access

JSONhttps://clawmart.sh/api/listings/E2jKKT
Pay-per-call premium API endpoint on Base via x402, settled in USDC at $0.02/request. — Clawmart · Clawmart