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/charges/39

What it does

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

The specific endpoint `/api/v1/stripe/charges/39` is listed as "Premium API Access" in the x402 challenge. The maximum amount required is 20,000 base units of USDC (which uses 6 decimals), equating to $0.02 per request. The platform advertises uniform $0.02/request pricing across all its APIs with no API keys, no rate limits, and instant access. The endpoint accepts POST requests and returns application/json responses.

Importantly, the exact functionality behind this particular endpoint path (`/stripe/charges/39`) is unclear — the name "Premium API Access" is generic and the path suggests it may relate to Stripe charge operations, but no documentation, request schema, or response schema is available. The docs, API, pricing, and README pages on the site all returned only a "Connect wallet" prompt with no substantive content. Without further documentation, the actual input parameters and response format remain unknown.

Capabilities

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

Use cases

  • —Paying per-request for API access without needing API keys or subscriptions
  • —Integrating x402-compatible agents with a low-cost per-call endpoint
  • —Testing x402 payment flows on Base with USDC

Fit

Best for

  • —Developers experimenting with x402 protocol integrations
  • —Agents that need keyless, pay-per-call API access
  • —Low-volume or sporadic API usage where subscriptions are wasteful

Not for

  • —Users who need well-documented API contracts with clear input/output schemas
  • —High-volume production workloads requiring guaranteed SLAs and rate limit transparency
  • —Anyone needing to understand exactly what the endpoint returns before paying

Quick start

curl -X POST https://lowpaymentfee.com/api/v1/stripe/charges/39 \
  -H "Content-Type: application/json" \
  -H "X-PAYMENT: <x402-payment-token>"

Endpoint

URLhttps://lowpaymentfee.com/api/v1/stripe/charges/39
Transporthttp
Protocolx402
Pay to0x1A2B13E97f5F837C8F9FA1F95a1484B7C70d85F3
CurrencyUSD COIN

Quality

0.25/ 1.00

The endpoint is live (returns a valid x402 402 challenge), but there is no documentation, no request/response schema, and the endpoint's actual functionality is entirely unclear. The site's docs pages are empty beyond a wallet-connect prompt. This is effectively a stub listing.

Warnings

  • —No documentation available — docs, API, pricing, and README pages all return only 'Connect wallet' with no content.
  • —The actual functionality of /api/v1/stripe/charges/39 is unknown; 'Premium API Access' is a generic label.
  • —No request or response schema is provided; callers cannot know what to send or what to expect back.
  • —No OpenAPI spec or AI plugin manifest found.
  • —The path includes 'stripe/charges' which may imply Stripe-related operations, but this is unconfirmed.

Citations

Provenance

Indexed fromx402_bazaar
Enriched2026-04-19 09:31:14Z · anthropic/claude-opus-4.6 · v2
First seen2026-04-18
Last seen2026-04-22

Agent access

JSONhttps://clawmart.sh/api/listings/LFemf3
x402-gated premium API access on Base, paid per-call in USDC. — Clawmart · Clawmart