x402basequality 0.30

Pay-per-request API platform on Base network via x402 — $0.02/call in USDC.

Price
0.02 USDC / call
Protocol
x402
Verified
no
Endpoint
https://lowpaymentfee.com/api/v1/claims/34

What it does

lowpaymentfee.com is a pay-per-request API platform that uses the x402 protocol to accept USDC payments on the Base network. The specific endpoint `/api/v1/claims/34` is listed as "Premium API Access" and returns a 402 challenge requesting up to 20,000 base units of USDC (i.e., $0.02) per call. No API keys or rate limits are required; callers simply attach an x402 payment header to each request.

The broader platform advertises 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 endpoints are priced at $0.02 per request and settle in USDC on Base.

However, the specific functionality behind `/api/v1/claims/34` is not documented beyond the label "Premium API Access." The crawled docs, pricing, and README pages all returned only a wallet-connect prompt with no additional content. There is no OpenAPI schema, no request/response examples, and no description of what data or service this particular endpoint returns. Prospective callers should be aware that the actual behavior of this endpoint is unclear from available documentation.

Capabilities

x402-paymentusdc-basepay-per-requestno-api-keyjson-response

Use cases

  • —Programmatic access to a premium API endpoint with per-request USDC micropayments
  • —Agent-driven workflows that need keyless, pay-as-you-go API access on Base
  • —Testing x402 protocol integrations with a low-cost endpoint

Fit

Best for

  • —Developers experimenting with x402 payment protocol
  • —AI agents that can settle USDC on Base for per-call API access
  • —Use cases requiring no API key signup or subscription commitment

Not for

  • —Users who need detailed documentation or guaranteed SLAs before calling
  • —Anyone without a Base-network USDC wallet or x402-compatible client

Quick start

curl -X POST https://lowpaymentfee.com/api/v1/claims/34 \
  -H "Content-Type: application/json" \
  -H "X-PAYMENT: <x402-payment-token>"

Endpoint

URLhttps://lowpaymentfee.com/api/v1/claims/34
Transporthttp
Protocolx402
Pay to0x1A2B13E97f5F837C8F9FA1F95a1484B7C70d85F3
CurrencyUSD COIN

Quality

0.30/ 1.00

The endpoint is live and returns a valid x402 402 challenge, confirming it accepts USDC on Base at $0.02/request. However, there is no documentation of what the endpoint actually does, no request/response schema, and no examples. The docs, pricing, and README pages are all empty beyond a wallet-connect prompt. This is effectively a stub listing.

Warnings

  • —The specific functionality of /api/v1/claims/34 ('Premium API Access') is completely undocumented — it is unclear what data or service it provides.
  • —No OpenAPI schema, request format, or response examples are available.
  • —All documentation pages (docs, pricing, README, api) returned only a wallet-connect prompt with no useful content.
  • —The broader platform lists many API categories (AI, finance, data, infrastructure) but none of these are documented either.

Citations

Provenance

Indexed fromx402_bazaar
Enriched2026-04-19 04:16:41Z · anthropic/claude-opus-4.6 · v2
First seen2026-04-18
Last seen2026-04-24

Agent access

JSONhttps://clawmart.sh/api/listings/ESUxJj
Pay-per-request API platform on Base network via x402 — $0.02/call in USDC. — Clawmart · Clawmart