x402basequality 0.35

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/162

What it does

This endpoint at lowpaymentfee.com provides "Premium API Access" via the x402 payment protocol on the Base network. The specific resource `/api/v1/trades/162` appears to be part of a broader platform offering dozens of pay-per-call API endpoints spanning data analytics, AI/ML inference, finance/Web3 data, and infrastructure utilities — all priced at $0.02 per request in USDC.

The endpoint accepts POST requests and returns JSON. Payment is settled on-chain via USDC (contract 0x8335…2913) on Base L2 using the x402 "exact" scheme. The maximum amount required per call is 20,000 base units of USDC (6 decimals), which equals $0.02. There are no API keys, no rate limits, and no upfront commitments — callers simply attach an X-PAYMENT header with a valid x402 payment proof.

The specific functionality behind `/api/v1/trades/162` is not documented in the crawled material. The path suggests it may relate to a specific trade record or trade-related data retrieval, but this is speculative. The broader platform lists endpoints for metrics, reports, data export, insights, sentiment analysis, text summarization, classification, embeddings, price feeds, exchange rates, token quotes, gas estimates, geocoding, validation, conversion, and generation — all at the same $0.02 price point. Documentation pages beyond the landing page returned only a "Connect wallet" prompt with no additional technical detail.

Capabilities

x402-paymentusdc-settlementbase-l2pay-per-requestno-api-keyjson-responsepost-method

Use cases

  • —Accessing trade-related data on a per-request payment basis without needing an API key
  • —Programmatic agents paying for API calls on-chain via x402 protocol
  • —Integrating low-cost per-call data endpoints into automated workflows

Fit

Best for

  • —Developers wanting zero-commitment, pay-as-you-go API access
  • —AI agents that can settle x402 payments autonomously on Base
  • —Projects needing cheap per-call API access without subscription overhead

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/162 \
  -H "Content-Type: application/json" \
  -H "X-PAYMENT: <x402-payment-proof>"

Endpoint

URLhttps://lowpaymentfee.com/api/v1/trades/162
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). However, there is no documentation for what /api/v1/trades/162 actually returns, no request/response schema, and the docs/pricing/README pages are all blank beyond a wallet connect prompt. The specific functionality of this endpoint is unknown.

Warnings

  • —No documentation available for the /api/v1/trades/162 endpoint — its purpose and response format are unknown
  • —All secondary pages (docs, pricing, README, api) returned only 'Connect wallet' with no technical content
  • —The endpoint path suggests trade-specific data but this is inferred from the URL pattern, not confirmed by documentation
  • —No OpenAPI spec, no request schema, and no response schema available

Citations

Provenance

Indexed fromx402_bazaar
Enriched2026-04-19 11:32:47Z · anthropic/claude-opus-4.6 · v2
First seen2026-04-18
Last seen2026-04-26

Agent access

JSONhttps://clawmart.sh/api/listings/QNww8j
x402-gated premium API access on Base, pay $0.02 per request in USDC — no API keys required. — Clawmart · Clawmart