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/113

What it does

This endpoint at lowpaymentfee.com provides "Premium API Access" behind an x402 paywall. 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/113` is labeled "Premium API Access" and costs up to $0.02 per request (maxAmountRequired of 20,000 base units of USDC, which has 6 decimals = $0.02). Payment is made via the x402 protocol's "exact" scheme: callers attach an X-PAYMENT header with a signed USDC payment on Base to the address `0x1A2B...85F3`. The endpoint accepts POST requests and returns `application/json`.

The platform advertises no API keys, no rate limits, and instant access. However, documentation is extremely thin — the docs, pricing, API, and README pages all render only a "Connect wallet" prompt with no substantive content. There is no OpenAPI schema, no request/response examples, and no description of what "Premium API Access" actually returns or what input it expects. The endpoint name suggests it may relate to Stripe subscription management, but this is speculative. Without documentation, callers cannot know what payload to send or what response to expect.

Capabilities

x402-paymentusdc-settlementbase-networkpay-per-requestjson-apipost-method

Use cases

  • —Programmatic access to a premium API endpoint without traditional API keys
  • —Agent-driven pay-per-request workflows settled in USDC on Base
  • —Accessing subscription-related functionality via x402 payment protocol

Fit

Best for

  • —Developers or agents wanting keyless, pay-per-call API access on Base
  • —x402-compatible agents that can sign USDC payments automatically
  • —Users who prefer crypto micropayments over traditional billing

Not for

  • —Anyone needing detailed API documentation or request/response schemas before integrating
  • —Users without a Base-network USDC wallet
  • —Production systems requiring SLA guarantees or support

Quick start

curl -X POST https://lowpaymentfee.com/api/v1/stripe/subscriptions/113 \
  -H "Content-Type: application/json" \
  -H "X-PAYMENT: <signed-x402-payment-header>"

Endpoint

URLhttps://lowpaymentfee.com/api/v1/stripe/subscriptions/113
Transporthttp
Protocolx402
Pay to0x1A2B13E97f5F837C8F9FA1F95a1484B7C70d85F3
CurrencyUSD COIN

Quality

0.25/ 1.00

The endpoint is live and returns a valid x402 challenge, but there is zero documentation on what the endpoint does, what inputs it accepts, or what it returns. The name 'Premium API Access' and path '/api/v1/stripe/subscriptions/113' are opaque. No OpenAPI spec, no examples, no docs pages with content — effectively a stub listing.

Warnings

  • —No documentation available — docs, pricing, API, and README pages all show only 'Connect wallet' with no content
  • —No OpenAPI or input/output schema provided; callers cannot determine what request body to send
  • —The endpoint path references 'stripe/subscriptions' but no explanation of its actual functionality exists
  • —Purpose of 'Premium API Access' is entirely unclear — could be subscription management, could be something else

Citations

Provenance

Indexed fromx402_bazaar
Enriched2026-04-19 10:52:28Z · anthropic/claude-opus-4.6 · v2
First seen2026-04-18
Last seen2026-04-22

Agent access

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