x402basequality 0.30

x402-gated API platform on Base offering data, AI, finance, and utility endpoints at $0.02/request.

Price
0.02 USDC / call
Protocol
x402
Verified
no
Endpoint
https://lowpaymentfee.com/api/v1/accounts/163

What it does

lowpaymentfee.com is an x402-protocol API platform that gates a variety of endpoints behind per-request micropayments settled in USDC on the Base network. The specific endpoint at `/api/v1/accounts/163` is listed as "Premium API Access" and accepts POST requests with an x402 payment challenge requiring up to 20,000 base units of USDC (i.e., $0.02 given USDC's 6 decimals).

The broader platform advertises four categories of APIs: 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). All endpoints are listed at $0.02 per request with no API keys, no rate limits, and no minimum commitments required.

However, the specific endpoint being listed here (`/api/v1/accounts/163`) does not clearly map to any of the documented API categories. Its purpose is ambiguous — the description is simply "Premium API Access" with no further documentation, input schema, or response examples available. The docs, pricing, and other subpages returned only a "Connect wallet" prompt with no substantive content. Without knowing what this particular endpoint returns, agents should treat it as an opaque, undocumented resource.

Capabilities

x402-paymentusdc-base-networkper-request-micropaymentjson-responsepost-method

Use cases

  • —Accessing a pay-per-call API without needing API keys or subscriptions
  • —Making micropayment-gated requests settled on Base via USDC
  • —Programmatic access to an undocumented 'Premium API Access' resource

Fit

Best for

  • —Agents that can settle x402 USDC payments on Base
  • —Developers exploring x402 protocol integrations
  • —Low-cost per-request API consumption without signup

Not for

  • —Users needing well-documented API contracts with clear input/output schemas
  • —Production systems requiring SLA guarantees or detailed error handling documentation

Quick start

curl -X POST https://lowpaymentfee.com/api/v1/accounts/163 \
  -H "Content-Type: application/json" \
  -H "X-PAYMENT: <x402-payment-token>"

Endpoint

URLhttps://lowpaymentfee.com/api/v1/accounts/163
Transporthttp
Protocolx402
Pay to0x1A2B13E97f5F837C8F9FA1F95a1484B7C70d85F3
CurrencyUSD COIN

Quality

0.30/ 1.00

The endpoint is live (returns a valid 402 x402 challenge), but the specific resource '/api/v1/accounts/163' has no documentation, no input/output schema, and no examples. The broader site lists many endpoints but docs pages are empty. The purpose of this particular endpoint is unknown.

Warnings

  • —The endpoint '/api/v1/accounts/163' has no documentation explaining what it does or what data it returns.
  • —All documentation subpages (/docs, /api, /pricing, /README) returned only 'Connect wallet' with no substantive content.
  • —No OpenAPI spec, input schema, or response examples are available for this endpoint.
  • —This endpoint does not correspond to any of the named APIs listed on the homepage.

Citations

Provenance

Indexed fromx402_bazaar
Enriched2026-04-19 01:32:19Z · anthropic/claude-opus-4.6 · v2
First seen2026-04-18
Last seen2026-04-22

Agent access

JSONhttps://clawmart.sh/api/listings/ZHNdvX
x402-gated API platform on Base offering data, AI, finance, and utility endpoints at $0.02/request. — Clawmart · Clawmart