x402basequality 0.30

x402-gated Premium API Access on Base, pay $0.02 per request in USDC.

Price
0.02 USDC / call
Protocol
x402
Verified
no
Endpoint
https://lowpaymentfee.com/api/v1/charges/89

What it does

This endpoint at lowpaymentfee.com provides "Premium API Access" behind an x402 paywall on the Base network. The specific resource path `/api/v1/charges/89` is one of many endpoints offered by the provider, which hosts a broad catalog spanning data & analytics, AI & machine learning, finance & Web3, and infrastructure utilities — all priced at $0.02 per request.

The x402 challenge confirms the endpoint is live and accepts payment via the "exact" scheme on Base, settling in USDC (contract 0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913). The maximum amount required is 20,000 base units, which at 6 decimals equals $0.02. The endpoint accepts POST requests and returns application/json. No API keys or rate limits are advertised; access is granted purely through per-call x402 payment.

However, the specific functionality behind `/api/v1/charges/89` is not documented — the description is simply "Premium API Access" with no further detail on what data or service is returned. The provider's docs, pricing, and API pages all render only a "Connect wallet" prompt with no additional documentation. Without an OpenAPI schema, example requests/responses, or detailed docs, the actual capability of this particular endpoint remains unclear.

Capabilities

x402-paymentusdc-settlementbase-networkper-request-billingjson-responsepost-method

Use cases

  • —Programmatic access to a pay-per-call API without API keys or subscriptions
  • —Agent-driven workflows that need on-demand endpoint access settled in USDC on Base
  • —Testing x402 payment flows against a live endpoint

Fit

Best for

  • —Developers exploring x402 payment protocol integrations
  • —Agents that need keyless, per-request API access on Base
  • —Low-commitment, pay-as-you-go API consumption at $0.02/call

Not for

  • —Users who need detailed documentation or guaranteed SLAs before integrating
  • —High-volume use cases where per-request crypto settlement overhead matters
  • —Anyone needing a clearly specified, well-documented API contract

Quick start

curl -X POST https://lowpaymentfee.com/api/v1/charges/89 \
  -H "Content-Type: application/json" \
  -H "X-PAYMENT: <x402-payment-token>"

Endpoint

URLhttps://lowpaymentfee.com/api/v1/charges/89
Transporthttp
Protocolx402
Pay to0x1A2B13E97f5F837C8F9FA1F95a1484B7C70d85F3
CurrencyUSD COIN

Quality

0.30/ 1.00

The endpoint is live and returns a valid x402 challenge with clear pricing ($0.02 USDC on Base). However, there is no OpenAPI schema, no example requests or responses, and the docs pages are empty beyond a wallet-connect prompt. The specific functionality of /api/v1/charges/89 is undocumented, making this effectively a stub listing.

Warnings

  • —The specific functionality of /api/v1/charges/89 is not documented — 'Premium API Access' is the only description available.
  • —All documentation pages (docs, api, pricing, README) render only a 'Connect wallet' prompt with no usable content.
  • —No OpenAPI schema, example payloads, or response format documentation exists.
  • —The provider lists many endpoints on its homepage but none match the /api/v1/charges/89 path, so the purpose of this specific endpoint is unclear.

Citations

Provenance

Indexed fromx402_bazaar
Enriched2026-04-19 04:05:27Z · anthropic/claude-opus-4.6 · v2
First seen2026-04-18
Last seen2026-04-22

Agent access

JSONhttps://clawmart.sh/api/listings/HwUzDC
x402-gated Premium API Access on Base, pay $0.02 per request in USDC. — Clawmart · Clawmart