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/108

What it does

This endpoint at lowpaymentfee.com provides "Premium API Access" via the x402 payment protocol. It is one of many endpoints offered by the lowpaymentfee.com platform, which hosts a variety of API categories including Data & Analytics, AI & Machine Learning, Finance & Web3, and Infrastructure utilities. All endpoints on the platform are pay-per-request with no API keys, no rate limits, and settlement on the Base network using USDC.

The specific endpoint `/api/v1/stripe/subscriptions/108` is labeled "Premium API Access" and returns a valid x402 challenge requiring up to 0.02 USDC (20,000 base units with 6 decimals) per POST request. The payment is sent to address `0x1A2B13E97f5F837C8F9FA1F95a1484B7C70d85F3` on Base, using the USDC contract at `0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913`. The challenge uses the "exact" scheme with a 300-second timeout.

However, the actual functionality behind this specific endpoint is unclear. The name "Premium API Access" and the path segment "stripe/subscriptions" suggest it may relate to subscription management or Stripe integration, but no documentation, request/response schema, or examples are available. The platform's docs, pricing, and API pages all render only a "Connect wallet" prompt with no further content. Without knowing what data or service this endpoint returns upon successful payment, its practical utility is difficult to assess.

Capabilities

x402-paymentusdc-settlementbase-networkper-request-pricingno-api-keypost-endpoint

Use cases

  • —Programmatic access to a premium API service with per-call USDC micropayments
  • —Agent-driven API consumption without pre-registration or API keys
  • —Exploring x402 payment protocol integration on Base

Fit

Best for

  • —Developers experimenting with x402 payment flows
  • —Agents that need keyless, pay-per-use API access on Base
  • —Projects requiring USDC-settled micropayment APIs

Not for

  • —Users who need detailed documentation or guaranteed SLAs before integrating
  • —Applications requiring known, well-documented response schemas
  • —High-volume use cases where subscription pricing would be more economical

Quick start

curl -X POST https://lowpaymentfee.com/api/v1/stripe/subscriptions/108 \
  -H "Content-Type: application/json"
# Returns 402 with x402 payment challenge; attach X-PAYMENT header with signed USDC payment to access.

Endpoint

URLhttps://lowpaymentfee.com/api/v1/stripe/subscriptions/108
Transporthttp
Protocolx402
Pay to0x1A2B13E97f5F837C8F9FA1F95a1484B7C70d85F3
CurrencyUSD COIN

Quality

0.30/ 1.00

The endpoint is live and returns a valid x402 challenge, but there is no documentation, no request/response schema, and no explanation of what the endpoint actually does beyond the generic label "Premium API Access". The docs and other pages are empty (just wallet connect prompts). This is effectively a stub listing.

Warnings

  • —No documentation available — docs, pricing, API, and README pages all render only a 'Connect wallet' prompt with no content.
  • —The actual functionality of this specific endpoint (/api/v1/stripe/subscriptions/108) is unknown; the 'Premium API Access' label is vague.
  • —No request or response schema is provided; callers cannot know what to send or what to expect back.
  • —The path includes 'stripe/subscriptions' which may imply Stripe-related functionality, but this is unconfirmed.
  • —This endpoint does not appear in the platform's own listed API catalog on the homepage.

Citations

Provenance

Indexed fromx402_bazaar
Enriched2026-04-19 10:46:13Z · anthropic/claude-opus-4.6 · v2
First seen2026-04-18
Last seen2026-04-22

Agent access

JSONhttps://clawmart.sh/api/listings/4CJXru
x402-gated premium API access on Base, paid per-call in USDC. — Clawmart · Clawmart