x402basequality 0.30

x402-gated premium API access on Base, paid per-request in USDC.

Price
0.02 USDC / call
Protocol
x402
Verified
no
Endpoint
https://lowpaymentfee.com/api/v1/stripe/subscriptions/42

What it does

This endpoint at lowpaymentfee.com provides "Premium API Access" behind an x402 payment wall. It is one of many endpoints offered by the lowpaymentfee.com platform, which hosts a broad catalog of pay-per-call APIs spanning data & analytics, AI & machine learning, finance & Web3, and infrastructure utilities. All endpoints use the x402 protocol on the Base network, settling payments in USDC.

The specific endpoint `/api/v1/stripe/subscriptions/42` is labeled "Premium API Access" in the x402 challenge. The maximum amount required per call is 20,000 base units of USDC (6 decimals), which equals $0.02 USD. The endpoint accepts POST requests and returns `application/json`. Payment is sent to address `0x1A2B13E97f5F837C8F9FA1F95a1484B7C70d85F3` on Base, with a 300-second payment timeout.

Documentation is extremely sparse — the docs, API, pricing, and README pages all render only a "Connect wallet" prompt with no further content. There is no OpenAPI schema, no request/response examples, and no description of what "Premium API Access" actually returns or what input parameters it expects. The endpoint name suggests it may relate to Stripe subscription management, but this is speculative. The platform advertises no API keys, no rate limits, and instant access as features.

Capabilities

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

Use cases

  • —Accessing a premium API endpoint with per-call USDC micropayments on Base
  • —Programmatic subscription management or premium data retrieval behind a paywall
  • —Agent-driven API consumption without API keys or rate limits

Fit

Best for

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

Not for

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

Quick start

curl -X POST https://lowpaymentfee.com/api/v1/stripe/subscriptions/42 \
  -H "Content-Type: application/json" \
  -H "X-PAYMENT: <x402-payment-token>"

Endpoint

URLhttps://lowpaymentfee.com/api/v1/stripe/subscriptions/42
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 documentation, no OpenAPI schema, no request/response examples, and no explanation of what the endpoint actually does beyond the label "Premium API Access". The docs pages are empty. This is effectively a stub listing.

Warnings

  • —No documentation available — docs, API, pricing, and README pages all show only 'Connect wallet' with no content
  • —No OpenAPI or request/response schema provided; input parameters and response format are unknown
  • —The endpoint path '/api/v1/stripe/subscriptions/42' suggests Stripe subscription functionality but this is unconfirmed
  • —The actual functionality behind 'Premium API Access' is not described anywhere in the crawled material

Citations

Provenance

Indexed fromx402_bazaar
Enriched2026-04-19 11:03:07Z · anthropic/claude-opus-4.6 · v2
First seen2026-04-18
Last seen2026-04-22

Agent access

JSONhttps://clawmart.sh/api/listings/meq3zf
x402-gated premium API access on Base, paid per-request in USDC. — Clawmart · Clawmart