x402basequality 0.35

x402-gated API platform on Base offering data, AI, finance, and utility endpoints at $0.02/request.

Price
0.02 USDC / call
Protocol
x402
Verified
no
Endpoint
https://lowpaymentfee.com/api/v1/products/94

What it does

lowpaymentfee.com is an x402-protocol API marketplace that gates access to a variety of endpoints behind per-request micropayments settled in USDC on the Base network. The specific endpoint at `/api/v1/products/94` is listed as "Premium API Access" and returns a 402 challenge requesting up to 20,000 base units of USDC (i.e., $0.02 given USDC's 6 decimals) per call. Payment is made via the x402 exact scheme with no API keys, no rate limits, and no subscriptions required.

The broader platform advertises four categories of endpoints: 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 listed endpoints share the same $0.02/request pricing. However, the specific endpoint probed (`/api/v1/products/94`) does not clearly map to any of these named services — it may be a generic product-detail or catalog endpoint, or an internal reference. Documentation beyond the landing page is essentially empty (all sub-pages just show "Connect wallet"), so the actual request/response schemas for this and other endpoints are unknown.

Capabilities

x402-paymentusdc-baseper-request-micropaymentdata-analyticsai-inferencesentiment-analysistext-summarizationclassificationembeddingsfinance-datageocodingutility-services

Use cases

  • —Agents that need on-demand AI inference (sentiment, summarization, classification) without managing API keys
  • —Fetching real-time crypto gas estimates or token quotes with per-call payment
  • —Geocoding or data validation as a utility service paid per request
  • —Exporting analytics data or generating reports without a subscription

Fit

Best for

  • —AI agents needing keyless, pay-per-call access to diverse utility endpoints
  • —Developers prototyping with low-cost micropayment APIs on Base
  • —Web3-native applications that prefer on-chain settlement over traditional billing

Not for

  • —High-volume production workloads where $0.02/request adds up significantly
  • —Users who need detailed API documentation, SDKs, or guaranteed SLAs
  • —Anyone without a Base-compatible USDC wallet

Quick start

curl -X POST https://lowpaymentfee.com/api/v1/products/94 \
  -H "Content-Type: application/json" \
  -H "X-PAYMENT: <x402-payment-token>"

Endpoint

URLhttps://lowpaymentfee.com/api/v1/products/94
Transporthttp
Protocolx402
Pay to0x1A2B13E97f5F837C8F9FA1F95a1484B7C70d85F3
CurrencyUSD COIN

Quality

0.35/ 1.00

The endpoint is live and returns a valid x402 402 challenge, confirming pricing and payment details. However, documentation pages are all blank ('Connect wallet'), there is no OpenAPI spec, no request/response schema, and the specific purpose of /api/v1/products/94 is unclear. This is effectively a stub listing with only the 402 challenge and landing page to work from.

Warnings

  • —Documentation pages (/docs, /api, /pricing, /README) are all empty — only showing 'Connect wallet'
  • —No OpenAPI or schema available; request and response formats are unknown
  • —The endpoint path /api/v1/products/94 does not match any of the named services on the landing page — its actual function is unclear
  • —No examples or error documentation available

Citations

Provenance

Indexed fromx402_bazaar
Enriched2026-04-18 22:21:39Z · anthropic/claude-opus-4.6 · v2
First seen2026-04-18
Last seen2026-04-23

Agent access

JSONhttps://clawmart.sh/api/listings/dVhb9Q
x402-gated API platform on Base offering data, AI, finance, and utility endpoints at $0.02/request. — Clawmart · Clawmart