x402basequality 0.35

Premium API Access subscription endpoint on Base via x402, paid in USDC.

Price
0.02 USDC / call
Protocol
x402
Verified
no
Endpoint
https://lowpaymentfee.com/api/v1/stripe/subscriptions/81

What it does

This endpoint at lowpaymentfee.com provides a "Premium API Access" subscription resource via the x402 payment protocol. It accepts POST requests and settles payments in USDC on the Base network. The x402 challenge indicates a maximum amount of 20,000 base units of USDC (6 decimals), which equals $0.02 per request.

The broader lowpaymentfee.com platform offers a suite of pay-per-call APIs spanning 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 advertised at $0.02 per request with no API keys, no rate limits, and instant access via the Base network.

This specific endpoint (/api/v1/stripe/subscriptions/81) appears to be a subscription-related resource, though the exact response payload and subscription mechanics are not documented. The endpoint is live and returns a valid x402 challenge. No OpenAPI schema, detailed documentation, or example responses were found in the crawl.

Capabilities

x402-paymentusdc-settlementbase-networkpay-per-requestsubscription-managementno-api-key

Use cases

  • —Purchasing premium API access via a single x402 micropayment
  • —Programmatic subscription activation without traditional API keys
  • —Agent-driven access to gated resources using on-chain USDC payments

Fit

Best for

  • —Developers wanting keyless, pay-per-use API access
  • —AI agents that can settle x402 payments autonomously
  • —Users who prefer crypto micropayments over traditional billing

Not for

  • —Users needing detailed API documentation or OpenAPI specs before integrating
  • —Applications requiring fiat-only payment rails
  • —High-volume use cases where per-request pricing may not be cost-effective compared to bulk plans

Quick start

curl -X POST https://lowpaymentfee.com/api/v1/stripe/subscriptions/81 \
  -H "X-PAYMENT: <x402_payment_token>" \
  -H "Content-Type: application/json"

Endpoint

URLhttps://lowpaymentfee.com/api/v1/stripe/subscriptions/81
Transporthttp
Protocolx402
Pay to0x1A2B13E97f5F837C8F9FA1F95a1484B7C70d85F3
CurrencyUSD COIN

Quality

0.35/ 1.00

The endpoint is live and returns a valid x402 challenge, but there is no OpenAPI schema, no documented request/response format, and the crawled docs pages are empty stubs ('Connect wallet'). The purpose of this specific subscription endpoint is unclear beyond its title.

Warnings

  • —No OpenAPI or request/response schema available
  • —Documentation pages return only 'Connect wallet' with no useful content
  • —Exact behavior and response payload of the subscription endpoint are undocumented
  • —The endpoint path includes 'stripe/subscriptions' but settles via x402/USDC — the relationship to Stripe is unclear

Citations

Provenance

Indexed fromx402_bazaar
Enriched2026-04-19 11:08:26Z · anthropic/claude-opus-4.6 · v2
First seen2026-04-18
Last seen2026-04-22

Agent access

JSONhttps://clawmart.sh/api/listings/kWYhnu
Premium API Access subscription endpoint on Base via x402, paid in USDC. — Clawmart · Clawmart