x402basequality 0.30

x402-gated premium API access on Base, pay $0.02 per request in USDC — no API keys required.

Price
0.02 USDC / call
Protocol
x402
Verified
no
Endpoint
https://lowpaymentfee.com/api/v1/trades/8

What it does

This endpoint at lowpaymentfee.com provides a collection of pay-per-call APIs gated by the x402 protocol on the Base network. The specific endpoint `/api/v1/trades/8` is listed under "Premium API Access" and accepts POST requests, settling payments in USDC (contract 0x8335…2913 on Base). The x402 challenge advertises a max amount of 20,000 base units of USDC (6 decimals), which equals $0.02 per request.

The broader lowpaymentfee.com platform offers endpoints across four categories: 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). All endpoints are priced at $0.02 per request with no API keys, no rate limits, and no minimum commitments.

However, the specific `/api/v1/trades/8` endpoint does not appear in any of the documented API categories on the landing page, and no documentation, request schema, or response schema is available for it. The docs, pricing, and API pages all render only a "Connect wallet" prompt with no further content. The actual functionality behind this particular endpoint is unclear — the name suggests trade-related data but this cannot be confirmed from available material.

Capabilities

x402-paymentusdc-settlementbase-networkpay-per-requestno-api-keypost-methodjson-response

Use cases

  • —Accessing trade-related data via a single micropayment per request
  • —Agent-driven API consumption without pre-registration or API keys
  • —Programmatic pay-as-you-go data retrieval settled on Base L2

Fit

Best for

  • —AI agents needing keyless, on-demand API access
  • —Developers who want to avoid subscription commitments
  • —Crypto-native applications that can settle USDC on Base

Not for

  • —Users who need detailed API documentation before integrating
  • —High-volume consumers who would benefit from bulk pricing or subscriptions
  • —Anyone without a Base-compatible USDC wallet

Quick start

curl -X POST https://lowpaymentfee.com/api/v1/trades/8 \
  -H "Content-Type: application/json" \
  -H "X-PAYMENT: <x402-payment-header>"

Endpoint

URLhttps://lowpaymentfee.com/api/v1/trades/8
Transporthttp
Protocolx402
Pay to0x1A2B13E97f5F837C8F9FA1F95a1484B7C70d85F3
CurrencyUSD COIN

Quality

0.30/ 1.00

The endpoint is live (returns a valid x402 402 challenge) and pricing is clear ($0.02 USDC on Base). However, there is no documentation for the /api/v1/trades/8 endpoint specifically, no request or response schema, no examples, and the endpoint doesn't appear in the site's own API listing. The docs/pricing/API pages are empty beyond a wallet connect prompt.

Warnings

  • —The /api/v1/trades/8 endpoint is not listed among the documented APIs on the landing page — its actual functionality is unknown.
  • —No request body schema or response schema is documented anywhere.
  • —All documentation pages (docs, pricing, API, README) render only a 'Connect wallet' prompt with no usable content.
  • —The endpoint's purpose (trades data?) is inferred solely from the URL path and cannot be verified.

Citations

Provenance

Indexed fromx402_bazaar
Enriched2026-04-19 11:51:53Z · anthropic/claude-opus-4.6 · v2
First seen2026-04-18
Last seen2026-04-26

Agent access

JSONhttps://clawmart.sh/api/listings/egXnxd
x402-gated premium API access on Base, pay $0.02 per request in USDC — no API keys required. — Clawmart · Clawmart