x402basequality 0.30

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

Price
0.02 USDC / call
Protocol
x402
Verified
no
Endpoint
https://lowpaymentfee.com/api/v1/trades/119

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/trades/119` 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. The platform advertises no API keys, no rate limits, and instant access — callers simply attach an X-PAYMENT header with a valid x402 payment proof.

The broader 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 utilities (geocoding, validation, conversion, generation). All endpoints are priced at $0.02 per request.

This particular endpoint (`/api/v1/trades/119`) falls under a "trades" path that is not explicitly listed on the homepage categories, so its exact functionality is unclear. The description simply says "Premium API Access" with no further documentation. The docs, pricing, and API pages all returned only a "Connect wallet" prompt with no substantive content. Without documentation or schema details for the request/response, callers should treat this as an exploratory endpoint.

Capabilities

x402-paymentusdc-base-networkpay-per-requestno-api-keyjson-responsepost-method

Use cases

  • —Accessing trade data or executing trade-related queries via a single micropayment
  • —Integrating pay-per-use API calls into autonomous agents without managing API keys
  • —Exploring x402 protocol-based commerce on the Base network

Fit

Best for

  • —Developers experimenting with x402 payment protocol
  • —Agents needing keyless, pay-per-call API access
  • —Low-volume consumers who prefer no subscriptions or commitments

Not for

  • —Users needing detailed API documentation or guaranteed SLAs
  • —High-volume consumers who would benefit from bulk pricing or rate-limited plans

Quick start

curl -X POST https://lowpaymentfee.com/api/v1/trades/119 \
  -H "Content-Type: application/json" \
  -H "X-PAYMENT: <x402-payment-proof>"

Endpoint

URLhttps://lowpaymentfee.com/api/v1/trades/119
Transporthttp
Protocolx402
Pay to0x1A2B13E97f5F837C8F9FA1F95a1484B7C70d85F3
CurrencyUSD COIN

Quality

0.30/ 1.00

The endpoint is live (402 challenge confirmed) and pricing is clear ($0.02 USDC on Base), but there is no documentation, no request/response schema, and the specific purpose of /api/v1/trades/119 is undocumented. The docs, pricing, and API pages are all empty beyond a wallet-connect prompt.

Warnings

  • —No documentation available for this specific endpoint — purpose of /api/v1/trades/119 is unknown
  • —No request or response schema provided
  • —Docs, pricing, and API pages return only 'Connect wallet' with no content
  • —The /api/v1/trades/119 path does not appear in the homepage's listed API categories

Citations

Provenance

Indexed fromx402_bazaar
Enriched2026-04-19 11:32:08Z · anthropic/claude-opus-4.6 · v2
First seen2026-04-18
Last seen2026-04-26

Agent access

JSONhttps://clawmart.sh/api/listings/H3rfnL
Pay-per-call API platform on Base network via x402 — $0.02/request in USDC. — Clawmart · Clawmart