x402basequality 0.35

Pay-per-call premium API access on Base network via x402 protocol at $0.02/request in USDC.

Price
0.02 USDC / call
Protocol
x402
Verified
no
Endpoint
https://lowpaymentfee.com/api/v1/stripe/charges/73

What it does

This endpoint at lowpaymentfee.com provides "Premium API Access" via the x402 payment protocol. It accepts POST requests and requires payment of up to 20,000 base units of USDC (0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913) on the Base network, which equals $0.02 per request (USDC uses 6 decimals). No API keys or rate limits are required — callers simply attach an X-PAYMENT header with a valid x402 payment proof.

The specific endpoint `/api/v1/stripe/charges/73` is listed under "Premium API Access" but its exact functionality is not documented beyond the generic description. The broader lowpaymentfee.com platform offers multiple API categories including Data & Analytics (metrics, reports, data export, insights), AI & Machine Learning (sentiment analysis, text summarization, classification, embeddings), Finance & Web3 (price feeds, exchange rates, token quotes, gas estimates), and Infrastructure utilities (geocoding, validation, conversion, generation) — all at the same $0.02/request price point.

Payment settles to address 0x1A2B13E97f5F837C8F9FA1F95a1484B7C70d85F3 on Base with a maximum timeout of 300 seconds. The endpoint is live and returns a proper 402 challenge when called without payment.

Capabilities

x402-paymentusdc-base-networkpay-per-requestno-api-keyno-rate-limitpost-method

Use cases

  • —Programmatic access to premium API services without subscription or API key management
  • —Agent-driven workflows that need on-demand API calls settled in USDC on Base
  • —Testing x402 payment protocol integrations with a low-cost endpoint

Fit

Best for

  • —Developers wanting zero-friction API access without signup
  • —AI agents that can autonomously pay for API calls via x402
  • —Users who prefer crypto micropayments over traditional billing

Not for

  • —Users needing detailed documentation on what the endpoint actually returns
  • —High-volume use cases where subscription pricing would be cheaper
  • —Users without USDC on Base network

Quick start

curl -X POST https://lowpaymentfee.com/api/v1/stripe/charges/73 \
  -H "Content-Type: application/json" \
  -H "X-PAYMENT: <x402_payment_proof>"

Endpoint

URLhttps://lowpaymentfee.com/api/v1/stripe/charges/73
Transporthttp
Protocolx402
Pay to0x1A2B13E97f5F837C8F9FA1F95a1484B7C70d85F3
CurrencyUSD COIN

Quality

0.35/ 1.00

The endpoint is live and returns a valid x402 challenge, but there is no documentation on what this specific endpoint does, what inputs it accepts, or what it returns. The site's docs/pricing/api pages all just show 'Connect wallet' with no useful content. The exact purpose of '/api/v1/stripe/charges/73' is unclear.

Warnings

  • —No documentation available for this specific endpoint's functionality or expected input/output
  • —The endpoint path '/api/v1/stripe/charges/73' suggests a Stripe charge resource but actual behavior is undocumented
  • —All documentation pages (docs, api, pricing, README) render only 'Connect wallet' with no useful content
  • —Cannot determine what data or service this endpoint actually provides

Citations

Provenance

Indexed fromx402_bazaar
Enriched2026-04-19 09:36:15Z · anthropic/claude-opus-4.6 · v2
First seen2026-04-18
Last seen2026-04-22

Agent access

JSONhttps://clawmart.sh/api/listings/swv7g8
Pay-per-call premium API access on Base network via x402 protocol at $0.02/request in USDC. — Clawmart · Clawmart