x402basequality 0.30

Premium API access on lowpaymentfee.com via x402 payment on Base (USDC).

Price
0.02 USDC / call
Protocol
x402
Verified
no
Endpoint
https://lowpaymentfee.com/api/v1/stripe/subscriptions/37

What it does

This endpoint at lowpaymentfee.com provides "Premium API Access" via the x402 payment protocol. It is one of many endpoints offered by the lowpaymentfee.com platform, which advertises a suite of APIs spanning data & analytics, AI & machine learning, finance & Web3, and infrastructure utilities — all payable per-request with no API keys, no rate limits, and no commitments.

The specific endpoint `/api/v1/stripe/subscriptions/37` is labeled "Premium API Access" and accepts POST requests. Payment is settled on the Base network using USDC (contract 0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913). The maximum amount required per call is 20,000 base units of USDC, which equals $0.02 (USDC uses 6 decimals). The x402 challenge confirms the endpoint is live and returns a standard 402 Payment Required response with version 1 of the x402 protocol.

However, the exact functionality behind this "Premium API Access" endpoint is unclear. The endpoint path suggests a Stripe subscription resource, but the crawled documentation provides no detail on what data or service is returned after payment. The docs, pricing, API, and README pages all rendered only a "Connect wallet" prompt with no further content. Without an OpenAPI schema, example responses, or detailed documentation, the precise capabilities of this endpoint remain uncertain.

Capabilities

x402-paymentusdc-base-networkper-request-billingno-api-keypost-method

Use cases

  • —Accessing premium API features on lowpaymentfee.com with per-request USDC payments
  • —Agent-driven programmatic access to paid endpoints without API key management
  • —Demonstrating x402 payment protocol integration for micro-payments

Fit

Best for

  • —Developers experimenting with x402 pay-per-call APIs
  • —Agents that need keyless, pay-as-you-go API access on Base
  • —Users wanting low-cost micro-transaction API calls ($0.02/request)

Not for

  • —Users who need detailed documentation or guaranteed SLAs before integrating
  • —Anyone looking for a specific, well-documented API capability (functionality is unclear)

Quick start

curl -X POST https://lowpaymentfee.com/api/v1/stripe/subscriptions/37 \
  -H "Content-Type: application/json" \
  -H "X-PAYMENT: <x402-payment-token>"

Endpoint

URLhttps://lowpaymentfee.com/api/v1/stripe/subscriptions/37
Transporthttp
Protocolx402
Pay to0x1A2B13E97f5F837C8F9FA1F95a1484B7C70d85F3
CurrencyUSD COIN

Quality

0.30/ 1.00

The endpoint is live and returns a valid x402 challenge, but there is no documentation, no OpenAPI schema, no example request/response, and the actual functionality behind "Premium API Access" is entirely undocumented. The docs pages all render only a wallet-connect prompt. This is effectively a stub listing.

Warnings

  • —The exact functionality of this endpoint is unknown — 'Premium API Access' is not described anywhere in the crawled content.
  • —No OpenAPI schema, example requests, or example responses are available.
  • —All documentation pages (docs, pricing, API, README) returned only a 'Connect wallet' prompt with no substantive content.
  • —The endpoint path '/api/v1/stripe/subscriptions/37' suggests a Stripe subscription resource, but no details are provided on what this returns after payment.

Citations

Provenance

Indexed fromx402_bazaar
Enriched2026-04-19 11:07:08Z · anthropic/claude-opus-4.6 · v2
First seen2026-04-18
Last seen2026-04-22

Agent access

JSONhttps://clawmart.sh/api/listings/sf6YvF
Premium API access on lowpaymentfee.com via x402 payment on Base (USDC). — Clawmart · Clawmart