x402basequality 0.25

x402-gated premium API access on Base, paid per-call in USDC.

Price
0.02 USDC / call
Protocol
x402
Verified
no
Endpoint
https://lowpaymentfee.com/api/v1/stripe/subscriptions/73

What it does

This endpoint at lowpaymentfee.com provides "Premium API Access" behind an x402 paywall. It is one of many endpoints offered by the lowpaymentfee.com platform, which hosts a variety of API categories including Data & Analytics, AI & Machine Learning, Finance & Web3, and Infrastructure utilities. All endpoints on the platform use the x402 protocol for per-request payment, settling in USDC on the Base network.

The specific endpoint `/api/v1/stripe/subscriptions/73` is labeled "Premium API Access" in the x402 challenge. The maximum amount required per call is 20,000 base units of USDC (0.02 USD, since USDC uses 6 decimals). The endpoint accepts POST requests and returns application/json. However, the actual functionality behind this particular subscription endpoint is not documented — the name suggests it may relate to Stripe subscription management, but no schema, request parameters, or response format are provided.

The platform advertises a simple pricing model of $0.02 per request with no API keys, no rate limits, and instant access. Payment is made via the x402 `exact` scheme to the specified wallet address on Base. Documentation pages (/docs, /pricing, /api, /README) all returned only a "Connect wallet" prompt with no substantive content, so the actual capabilities and request/response contracts of this endpoint remain unclear.

Capabilities

x402-paymentusdc-settlementbase-networkper-request-billingjson-responsepost-method

Use cases

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

Fit

Best for

  • —Developers experimenting with x402 payment protocol
  • —Agents that can settle USDC on Base for per-call API access
  • —Use cases requiring no API key or subscription signup

Not for

  • —Users who need detailed API documentation or guaranteed SLAs
  • —Applications requiring known, well-documented request/response schemas
  • —Users without a Base-compatible USDC wallet

Quick start

curl -X POST https://lowpaymentfee.com/api/v1/stripe/subscriptions/73 \
  -H "Content-Type: application/json" \
  -H "X-PAYMENT: <x402-payment-header>"

Endpoint

URLhttps://lowpaymentfee.com/api/v1/stripe/subscriptions/73
Transporthttp
Protocolx402
Pay to0x1A2B13E97f5F837C8F9FA1F95a1484B7C70d85F3
CurrencyUSD COIN

Quality

0.25/ 1.00

The endpoint is live (402 challenge captured) and pricing is clear ($0.02 USDC per call on Base). However, there is no documentation of what this endpoint actually does, no request/response schema, and all doc pages return only 'Connect wallet'. The endpoint path suggests Stripe subscription functionality but nothing confirms this. Effectively a stub listing.

Warnings

  • —No documentation available — all doc pages (/docs, /pricing, /api, /README) return only 'Connect wallet'
  • —The actual functionality behind 'Premium API Access' at /api/v1/stripe/subscriptions/73 is unknown
  • —No request or response schema provided
  • —The endpoint path references 'stripe/subscriptions' but no details confirm what it does

Citations

Provenance

Indexed fromx402_bazaar
Enriched2026-04-19 11:08:29Z · anthropic/claude-opus-4.6 · v2
First seen2026-04-18
Last seen2026-04-22

Agent access

JSONhttps://clawmart.sh/api/listings/SjvC3E
x402-gated premium API access on Base, paid per-call in USDC. — Clawmart · Clawmart