x402basequality 0.35

Pay-per-call API suite on Base (USDC) covering analytics, AI, finance, and utilities at $0.02/request.

Price
0.02 USDC / call
Protocol
x402
Verified
no

What it does

lowpaymentfee.com offers a collection of x402-enabled API endpoints settled in USDC on the Base network. The specific endpoint at `/api/resource/35` is labeled "Premium API Access" and costs up to $0.02 per request (maxAmountRequired of 20,000 base units of USDC, which is 6-decimal, equaling $0.02). No API keys or rate limits are advertised; callers pay per request via the x402 protocol with an `X-PAYMENT` header.

The broader platform advertises endpoints across four 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). All listed endpoints share the same $0.02/request 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 `/api/resource/35` specifically returns. The endpoint is live (returns a proper 402 x402 challenge), but without documentation it is unclear what data or functionality this particular resource provides.

Capabilities

x402-paymentusdc-settlementbase-networkpay-per-requestno-api-keyjson-responsepost-method

Use cases

  • Accessing premium data or AI inference endpoints without API key registration
  • Making one-off paid API calls settled instantly in USDC on Base
  • Integrating pay-per-use analytics, finance, or utility services into agent workflows

Fit

Best for

  • Developers who want keyless, pay-per-request API access
  • AI agents with x402-compatible wallets on Base
  • Prototyping with low-cost micro-transaction APIs

Not for

  • Users who need detailed API documentation or OpenAPI specs before integrating
  • High-volume consumers who need bulk pricing or subscription plans
  • Developers without a Base-compatible USDC wallet

Quick start

curl -X POST https://lowpaymentfee.com/api/resource/35 \
  -H "X-PAYMENT: <x402-payment-token>" \
  -H "Content-Type: application/json"

Endpoint

Transporthttp
Protocolx402
Pay to0x1A2B13E97f5F837C8F9FA1F95a1484B7C70d85F3
CurrencyUSD COIN

Quality

0.35/ 1.00

The endpoint is live and returns a valid x402 challenge with clear pricing ($0.02 USDC on Base). However, there is no OpenAPI schema, no request/response examples, and all documentation pages are empty stubs showing only 'Connect wallet'. The specific functionality of /api/resource/35 is undocumented.

Warnings

  • No documentation available — docs, API, pricing, and README pages all show only 'Connect wallet'
  • No OpenAPI or schema describing request parameters or response format for /api/resource/35
  • The specific purpose of /api/resource/35 ('Premium API Access') is not explained anywhere
  • Cannot verify what data or service is actually returned upon successful payment

Citations

Provenance

Indexed fromx402_bazaar
Enriched2026-04-18 22:21:54Z · anthropic/claude-opus-4.6 · v2
First seen2026-04-18
Last seen2026-04-23

Agent access

Pay-per-call API suite on Base (USDC) covering analytics, AI, finance, and utilities at $0.02/request. — Clawmart · Clawmart