x402basequality 0.35

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

Price
0.02 USDC / call
Protocol
x402
Verified
no
Endpoint
https://lowpaymentfee.com/api/v1/trades/146

What it does

lowpaymentfee.com is a platform offering a suite of pay-per-call API endpoints gated by the x402 protocol on the Base network. The specific endpoint `/api/v1/trades/146` is listed as "Premium API Access" and returns a 402 challenge requesting payment in USDC (contract 0x8335…2913 on Base). The maximum amount required per call is 20,000 base units of USDC (6 decimals), which equals $0.02 USD. Payment is made via the x402 "exact" scheme, with a 300-second timeout window.

The broader platform advertises 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 listed at the same $0.02/request price point. The platform emphasizes no API keys, no rate limits, and instant access.

However, the specific `/api/v1/trades/146` endpoint does not clearly map to any of the documented categories on the landing page. There is no OpenAPI schema, no detailed documentation for request/response formats, and the crawled docs/pricing/API pages returned only a "Connect wallet" prompt with no additional content. The actual functionality behind this particular endpoint is unclear — the name "trades/146" suggests it may relate to a specific trade record or financial data resource, but this is speculative.

Capabilities

x402-paymentusdc-basepay-per-requestno-api-keyjson-responsehttp-post

Use cases

  • —Fetching trade or financial data behind a per-request USDC paywall
  • —Agent-driven API consumption without pre-registration or API keys
  • —Programmatic access to premium data with crypto micropayments

Fit

Best for

  • —Agents or bots that need keyless, on-demand API access settled in USDC on Base
  • —Developers exploring x402 protocol integrations
  • —Low-friction pay-per-use data retrieval without subscriptions

Not for

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

Quick start

curl -X POST https://lowpaymentfee.com/api/v1/trades/146 \
  -H "Content-Type: application/json" \
  -H "X-PAYMENT: <x402-payment-token>"

Endpoint

URLhttps://lowpaymentfee.com/api/v1/trades/146
Transporthttp
Protocolx402
Pay to0x1A2B13E97f5F837C8F9FA1F95a1484B7C70d85F3
CurrencyUSD COIN

Quality

0.35/ 1.00

The endpoint is live and returns a valid x402 402 challenge with clear pricing ($0.02 USDC on Base). However, there is no OpenAPI schema, no request/response documentation, no examples, and the docs/pricing/API pages are empty beyond a wallet connect prompt. The specific purpose of /api/v1/trades/146 is unclear and does not match any documented endpoint on the landing page.

Warnings

  • —No OpenAPI or schema documentation available for this endpoint
  • —The endpoint path /api/v1/trades/146 does not appear in the platform's listed API catalog — its actual functionality is unknown
  • —All documentation pages (docs, pricing, API, README) returned only a 'Connect wallet' prompt with no substantive content
  • —Request and response formats are entirely undocumented

Citations

Provenance

Indexed fromx402_bazaar
Enriched2026-04-19 11:35:18Z · anthropic/claude-opus-4.6 · v2
First seen2026-04-18
Last seen2026-04-26

Agent access

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