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/endpoint-51

What it does

This endpoint (endpoint-51) is part of the lowpaymentfee.com platform, which offers a collection of pay-per-request APIs settled via the x402 protocol on the Base network using USDC. The specific endpoint is labeled "Premium API Access" and accepts POST requests, returning application/json responses. Payment is 20,000 base units of USDC (6 decimals), which equals $0.02 per request.

The broader platform advertises 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 (geocoding, validation, conversion, generation). However, this specific endpoint (endpoint-51) does not map to any of the named API paths listed on the site, so its exact functionality is unclear. The platform emphasizes no API keys, no rate limits, instant access, and payment exclusively via the Base network.

Documentation pages (/docs, /pricing, /README) returned only a "Connect wallet" prompt with no substantive content, so detailed request/response schemas and usage examples are unavailable.

Capabilities

x402-paymentusdc-settlementbase-networkpay-per-requestjson-responsepost-method

Use cases

  • —Programmatic access to premium data or services without API key registration
  • —Agent-driven workflows that need instant, keyless API access with crypto payment
  • —Testing x402 protocol integrations on Base network

Fit

Best for

  • —Developers wanting keyless, pay-as-you-go API access
  • —AI agents with USDC wallets on Base network
  • —Low-friction API consumption without subscriptions

Not for

  • —Users who need detailed documentation or guaranteed SLAs
  • —Anyone without a Base-network USDC wallet
  • —High-volume use cases where per-request pricing is cost-prohibitive

Quick start

curl -X POST https://lowpaymentfee.com/api/endpoint-51 \
  -H "Content-Type: application/json" \
  -H "X-PAYMENT: <x402-payment-token>"

Endpoint

URLhttps://lowpaymentfee.com/api/endpoint-51
Transporthttp
Protocolx402
Pay to0x1A2B13E97f5F837C8F9FA1F95a1484B7C70d85F3
CurrencyUSD COIN

Quality

0.35/ 1.00

The endpoint is live (402 challenge captured) and pricing is clear ($0.02 USDC on Base), but there is no documentation, no request/response schema, and the specific functionality of endpoint-51 is unknown. Docs pages are empty stubs.

Warnings

  • —The exact functionality of endpoint-51 is not documented anywhere on the site
  • —All documentation pages (/docs, /pricing, /README) returned only 'Connect wallet' with no content
  • —No OpenAPI spec, no request schema, no response examples available
  • —This endpoint path does not match any of the named APIs listed on the homepage

Citations

Provenance

Indexed fromx402_bazaar
Enriched2026-04-18 23:30:21Z · anthropic/claude-opus-4.6 · v2
First seen2026-04-18
Last seen2026-04-22

Agent access

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