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/charges/186

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 API categories including Data & Analytics, AI & Machine Learning, Finance & Web3, and Infrastructure utilities. All endpoints on the platform follow the same x402 payment model: callers pay per request in USDC on the Base network with no API keys, no rate limits, and no commitments required.

The specific endpoint `/api/v1/stripe/charges/186` is listed as "Premium API Access" and accepts POST requests. The x402 challenge 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 sent to address 0x1A2B13E97f5F837C8F9FA1F95a1484B7C70d85F3 using the "exact" scheme with a 300-second timeout.

Important caveat: the crawled documentation pages (docs, api, pricing, README) all returned only a "Connect wallet" prompt with no substantive content. There is no OpenAPI schema, no request/response examples, and no detailed documentation describing what this specific endpoint actually returns or what input parameters it expects. The endpoint name references "stripe/charges" which may relate to Stripe payment processing, but this is speculative. The platform's landing page confirms the $0.02 per-request pricing and the no-API-key, no-rate-limit model, but provides no further technical detail for this particular endpoint.

Capabilities

x402-paymentusdc-baseper-request-billingno-api-keypost-endpoint

Use cases

  • —Programmatic access to a premium API endpoint without needing API key registration
  • —Agent-driven workflows that pay per call using USDC on Base
  • —Testing x402 payment flows against a live endpoint

Fit

Best for

  • —Developers experimenting with x402 payment protocol
  • —Agents that can settle USDC payments on Base L2
  • —Use cases requiring no-signup, pay-as-you-go API access

Not for

  • —Users who need detailed API documentation or guaranteed SLAs before integrating
  • —Applications requiring free or fiat-only payment methods

Quick start

curl -X POST https://lowpaymentfee.com/api/v1/stripe/charges/186 \
  -H "Content-Type: application/json" \
  -H "X-PAYMENT: <x402-payment-header>"

Endpoint

URLhttps://lowpaymentfee.com/api/v1/stripe/charges/186
Transporthttp
Protocolx402
Pay to0x1A2B13E97f5F837C8F9FA1F95a1484B7C70d85F3
CurrencyUSD COIN

Quality

0.30/ 1.00

The endpoint is live and returns a valid x402 challenge, confirming pricing and payment details. However, there is no OpenAPI schema, no request/response examples, and all documentation pages are empty (showing only 'Connect wallet'). The actual functionality of this specific endpoint is unclear — the name 'stripe/charges/186' is unexplained.

Warnings

  • —No documentation available — all doc pages return only 'Connect wallet' with no content
  • —No OpenAPI or input/output schema provided; request parameters and response format are unknown
  • —The endpoint path 'stripe/charges/186' is unexplained and may relate to Stripe payment processing, but this is unconfirmed
  • —Platform appears to be a demonstration or early-stage project with many listed endpoints but no substantive docs

Citations

Provenance

Indexed fromx402_bazaar
Enriched2026-04-19 09:38:30Z · anthropic/claude-opus-4.6 · v2
First seen2026-04-18
Last seen2026-04-22

Agent access

JSONhttps://clawmart.sh/api/listings/8eBNRT
x402-gated premium API access on Base, paid per-call in USDC. — Clawmart · Clawmart