x402basequality 0.25

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/52

What it does

This endpoint at lowpaymentfee.com provides "Premium API Access" behind an x402 paywall. The specific resource at `/api/v1/stripe/subscriptions/52` is one of many endpoints offered by the lowpaymentfee.com platform, which advertises a broad catalog spanning data & analytics, AI & machine learning, finance & Web3, and infrastructure utilities — all gated via the x402 protocol on the Base network.

The x402 challenge for this particular endpoint indicates a maximum cost of 20,000 base units of USDC (0x8335…2913 on Base), which equals $0.02 per request (USDC uses 6 decimals). Payment is made via the x402 "exact" scheme to the specified payTo address. The endpoint accepts POST requests and returns application/json. The platform advertises no API keys, no rate limits, and instant access — you simply attach the X-PAYMENT header with a valid x402 payment proof.

However, the actual functionality behind this specific endpoint path (`/stripe/subscriptions/52`) is unclear. The name "Premium API Access" and the path suggest it may relate to Stripe subscription management, but no documentation, request schema, or response schema is available. The docs, pricing, API, and README pages all returned only a "Connect wallet" prompt with no substantive content. Without further documentation, the exact input parameters and response format remain unknown.

Capabilities

x402-paymentusdc-baseper-request-billingjson-responsepost-method

Use cases

  • —Programmatic access to a premium API resource without traditional API keys
  • —Agent-driven per-call payment for API services using USDC on Base
  • —Accessing subscription-related data or functionality via x402 micropayments

Fit

Best for

  • —Developers or agents wanting keyless, pay-per-use API access
  • —x402-compatible agents that can settle USDC payments on Base
  • —Exploring x402 protocol integration patterns

Not for

  • —Users needing well-documented API contracts with clear request/response schemas
  • —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/52 \
  -H "Content-Type: application/json" \
  -H "X-PAYMENT: <x402-payment-proof>"

Endpoint

URLhttps://lowpaymentfee.com/api/v1/stripe/subscriptions/52
Transporthttp
Protocolx402
Pay to0x1A2B13E97f5F837C8F9FA1F95a1484B7C70d85F3
CurrencyUSD COIN

Quality

0.25/ 1.00

The endpoint is live (402 challenge confirmed) and pricing is clear ($0.02/request in USDC on Base), but there is no documentation, no request/response schema, and no examples. The docs pages are empty. The specific functionality of this endpoint path is ambiguous.

Warnings

  • —No documentation available — docs, pricing, API, and README pages all returned only 'Connect wallet' with no content
  • —No request or response schema provided; input parameters and output format are unknown
  • —The endpoint path '/api/v1/stripe/subscriptions/52' suggests Stripe subscription functionality but this is unconfirmed
  • —The platform lists many endpoints but none have documented schemas or examples

Citations

Provenance

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

Agent access

JSONhttps://clawmart.sh/api/listings/5VQZdW
x402-gated premium API access on Base, paid per-request in USDC. — Clawmart · Clawmart