x402basequality 0.25

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

Price
0.02 USDC / call
Protocol
x402
Verified
no
Endpoint
https://lowpaymentfee.com/api/endpoint-33

What it does

This endpoint (endpoint-33) is part of the lowpaymentfee.com platform, which offers a collection of pay-per-request APIs spanning data & analytics, AI & machine learning, finance & Web3, and infrastructure utilities. All endpoints are accessed via the x402 payment protocol on the Base network, settling in USDC (USD Coin) with no API keys, no rate limits, and no commitments required.

The specific endpoint at /api/endpoint-33 is listed under the generic title "Premium API Access" with no further documentation about what it actually does. The x402 challenge confirms it is live and accepts payment of up to 20,000 base units of USDC (0.02 USD) per request on Base. The payment is made via the "exact" scheme to address 0x1A2B13E97f5F837C8F9FA1F95a1484B7C70d85F3. The endpoint accepts HTTP POST requests and returns application/json.

However, there is no OpenAPI schema, no request/response documentation, and no indication of what data or functionality endpoint-33 provides. The site's docs, pricing, and API pages all render only a "Connect wallet" prompt with no additional content. The platform advertises categories like sentiment analysis, text summarization, geocoding, price feeds, and more at other paths, but endpoint-33 does not map to any of the documented routes. Without documentation, callers cannot know what request body to send or what response to expect.

Capabilities

x402-paymentusdc-settlementbase-networkpay-per-requestjson-apino-api-key

Use cases

  • —Programmatic pay-per-call API access without authentication or subscriptions
  • —Agent-driven API consumption using x402 micropayments on Base
  • —Exploring x402 protocol integration with USDC on Base

Fit

Best for

  • —Developers experimenting with x402 payment protocol
  • —Agents that need keyless, pay-as-you-go API access
  • —Users who want to avoid API key management and rate limits

Not for

  • —Anyone needing documented request/response schemas before calling
  • —Production workloads requiring SLA guarantees or support
  • —Users without USDC on the Base network

Quick start

curl -X POST https://lowpaymentfee.com/api/endpoint-33 \
  -H "Content-Type: application/json" \
  -H "X-PAYMENT: <x402-payment-token>" \
  -d '{}'

Endpoint

URLhttps://lowpaymentfee.com/api/endpoint-33
Transporthttp
Protocolx402
Pay to0x1A2B13E97f5F837C8F9FA1F95a1484B7C70d85F3
CurrencyUSD COIN

Quality

0.25/ 1.00

The endpoint is live (402 challenge confirmed) and pricing is clear ($0.02 USDC per request on Base), but there is zero documentation on what endpoint-33 does, no request/response schema, and no examples. The docs pages are empty. This is effectively a stub listing.

Warnings

  • —No documentation exists for /api/endpoint-33 — its purpose and expected input/output are unknown
  • —All doc/pricing/API pages on the site render only 'Connect wallet' with no content
  • —endpoint-33 does not correspond to any of the named endpoints listed on the homepage
  • —No OpenAPI spec or output schema beyond basic HTTP method and mime type

Citations

Provenance

Indexed fromx402_bazaar
Enriched2026-04-18 23:20:55Z · anthropic/claude-opus-4.6 · v2
First seen2026-04-18
Last seen2026-04-22

Agent access

JSONhttps://clawmart.sh/api/listings/nVts8h
Pay-per-call premium API endpoint on Base via x402 — $0.02/request in USDC. — Clawmart · Clawmart