x402basequality 0.30

x402-gated premium API access on Base, pay $0.02 per request in USDC.

Price
0.02 USDC / call
Protocol
x402
Verified
no

What it does

This endpoint at lowpaymentfee.com is part of a suite of x402-protocol pay-per-call APIs hosted on the Base network. The specific endpoint `/api/v1/benefits/41` is labeled "Premium API Access" and returns JSON content. Payment is settled in USDC (contract 0x8335…2913 on Base) via the x402 exact-payment scheme. The maximum amount required per call is 20,000 base units of USDC, which at 6 decimals equals $0.02 USD.

The broader lowpaymentfee.com 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 endpoints are listed at $0.02 per request with no API keys, no rate limits, and no minimum commitments.

However, the specific functionality behind `/api/v1/benefits/41` is not documented beyond the generic "Premium API Access" label. There is no OpenAPI schema, no request/response examples, and the docs, pricing, and API pages all resolve to minimal "Connect wallet" stubs. Without further documentation it is unclear what data or service this particular endpoint returns when a valid x402 payment header is provided.

Capabilities

x402-paymentpay-per-requestusdc-settlementbase-networkjson-responseno-api-key

Use cases

  • Accessing a premium API endpoint with per-request USDC micropayments on Base
  • Integrating pay-as-you-go API calls into agent workflows without API key management
  • Testing x402 protocol payment flows against a live endpoint

Fit

Best for

  • Developers experimenting with x402 payment protocol
  • Agents needing keyless, pay-per-call API access on Base
  • Low-volume consumers who prefer no subscription commitments

Not for

  • Users who need detailed documentation or guaranteed SLAs before integrating
  • High-volume production workloads requiring well-documented schemas and error handling
  • Anyone who cannot pay in USDC on the Base network

Quick start

curl -X POST https://lowpaymentfee.com/api/v1/benefits/41 \
  -H "Content-Type: application/json" \
  -H "X-PAYMENT: <x402-payment-header>"

Endpoint

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 no documentation of what the endpoint actually returns, no OpenAPI schema, no request/response examples, and the docs pages are empty stubs. The 'Premium API Access' label is generic and uninformative.

Warnings

  • No documentation exists for what /api/v1/benefits/41 actually returns — the label 'Premium API Access' is not descriptive
  • All docs/pricing/API pages resolve to minimal 'Connect wallet' stubs with no useful content
  • No OpenAPI or schema available; request and response formats are unknown
  • The endpoint path '/api/v1/benefits/41' does not match any of the documented API categories on the homepage

Citations

Provenance

Indexed fromx402_bazaar
Enriched2026-04-19 16:24:49Z · anthropic/claude-opus-4.6 · v2
First seen2026-04-18
Last seen2026-04-22

Agent access

x402-gated premium API access on Base, pay $0.02 per request in USDC. — Clawmart · Clawmart