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/191

What it does

This endpoint at lowpaymentfee.com provides "Premium API Access" behind an x402 paywall, settling payments in USDC on the Base network. The specific resource path (`/api/v1/stripe/subscriptions/191`) suggests a subscription-related API endpoint, though the x402 challenge uses the "exact" (one-shot) payment scheme rather than a recurring subscription model.

The endpoint is live and returns a standard x402 challenge. The maximum amount required is 20,000 base units of USDC (which uses 6 decimals), equating to $0.02 per request. The broader lowpaymentfee.com platform advertises a uniform $0.02/request pricing across multiple API categories including Data & Analytics, AI & Machine Learning, Finance & Web3, and Infrastructure utilities. The platform emphasizes no API keys, no rate limits, and instant access.

Documentation is extremely sparse — the docs, API, pricing, 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 detailed description of what this specific endpoint returns. The endpoint accepts POST requests and returns application/json, but the actual payload structure and response format are unknown.

Capabilities

x402-paymentusdc-settlementbase-networkper-call-pricingjson-responsepost-method

Use cases

  • —Accessing premium API functionality with per-request USDC micropayments
  • —Agent-driven API consumption without API key management
  • —Testing x402 payment flows on Base network

Fit

Best for

  • —Developers experimenting with x402 payment protocol
  • —Agents needing keyless, pay-per-call API access
  • —Users who prefer crypto micropayments over subscription billing

Not for

  • —Users needing detailed API documentation before integrating
  • —Production workloads requiring SLA guarantees or support
  • —Users without USDC on Base network

Quick start

curl -X POST https://lowpaymentfee.com/api/v1/stripe/subscriptions/191 \
  -H "Content-Type: application/json" \
  -H "X-PAYMENT: <x402-payment-token>"

Endpoint

URLhttps://lowpaymentfee.com/api/v1/stripe/subscriptions/191
Transporthttp
Protocolx402
Pay to0x1A2B13E97f5F837C8F9FA1F95a1484B7C70d85F3
CurrencyUSD COIN

Quality

0.25/ 1.00

The endpoint is live and returns a valid x402 challenge, but there is virtually no documentation, no OpenAPI schema, no request/response examples, and no explanation of what the endpoint actually does beyond the generic label "Premium API Access". The docs pages are empty wallet-connect stubs.

Warnings

  • —No OpenAPI schema or endpoint documentation available
  • —All documentation pages (docs, API, pricing, README) render only 'Connect wallet' with no content
  • —The actual functionality of this specific endpoint (/api/v1/stripe/subscriptions/191) is unclear
  • —No request body schema or response format documented
  • —The path suggests Stripe subscription management but no details confirm this

Citations

Provenance

Indexed fromx402_bazaar
Enriched2026-04-19 10:50:44Z · anthropic/claude-opus-4.6 · v2
First seen2026-04-18
Last seen2026-04-22

Agent access

JSONhttps://clawmart.sh/api/listings/YqwE8r
x402-gated premium API access on Base, paid per-call in USDC. — Clawmart · Clawmart