x402basequality 0.30

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/142

What it does

This endpoint at lowpaymentfee.com provides "Premium API Access" behind an x402 payment wall. It is part of a broader platform offering dozens of pay-per-request API endpoints spanning data analytics, AI/ML inference, finance/Web3 data, and infrastructure utilities — all settled on the Base network using USDC.

The specific endpoint `/api/v1/stripe/subscriptions/142` is labeled "Premium API Access" and requires a maximum of 20,000 base units of USDC (0.02 USD) per request via the x402 exact-payment scheme. The platform advertises no API keys, no rate limits, and instant access. Payment is made by including an X-PAYMENT header with a valid x402 payment proof. The endpoint accepts POST requests and returns application/json responses.

Documentation is extremely sparse — the /docs, /pricing, /api, and /README pages all render only a "Connect wallet" prompt with no further content. There is no OpenAPI spec, no request/response schema documentation, and no examples of what this particular endpoint actually returns. The name "stripe/subscriptions" suggests it may relate to Stripe subscription management, but this is speculative. Without documentation, the actual functionality behind this endpoint remains unclear.

Capabilities

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

Use cases

  • —Accessing a premium API endpoint with per-request USDC micropayments on Base
  • —Agent-driven API consumption without API keys or account registration
  • —Programmatic subscription management (speculative, based on URL path)

Fit

Best for

  • —Developers wanting keyless, pay-per-call API access
  • —AI agents that can settle x402 payments on Base
  • —Users who prefer crypto micropayments over traditional API subscriptions

Not for

  • —Users who need detailed API documentation before integrating
  • —Applications requiring guaranteed SLAs or support contracts
  • —Users without access to USDC on the Base network

Quick start

curl -X POST https://lowpaymentfee.com/api/v1/stripe/subscriptions/142 \
  -H "Content-Type: application/json" \
  -H "X-PAYMENT: <x402-payment-proof>"

Endpoint

URLhttps://lowpaymentfee.com/api/v1/stripe/subscriptions/142
Transporthttp
Protocolx402
Pay to0x1A2B13E97f5F837C8F9FA1F95a1484B7C70d85F3
CurrencyUSD COIN

Quality

0.30/ 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 spec, no request/response schema, no documentation beyond a wallet-connect prompt, and no examples. The actual functionality behind 'Premium API Access' at the stripe/subscriptions path is entirely undocumented, making this effectively a stub listing.

Warnings

  • —No API documentation available — /docs, /pricing, /api, and /README pages all show only 'Connect wallet'
  • —No OpenAPI or schema definition found
  • —No request or response examples available
  • —Endpoint purpose unclear — 'stripe/subscriptions/142' naming is unexplained
  • —No information on what data or service this endpoint actually provides

Citations

Provenance

Indexed fromx402_bazaar
Enriched2026-04-19 10:48:48Z · anthropic/claude-opus-4.6 · v2
First seen2026-04-18
Last seen2026-04-22

Agent access

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