x402basequality 0.35

Pay-per-call API platform on Base (USDC) covering 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/customers/60

What it does

lowpaymentfee.com is an x402-enabled API platform that offers a broad suite of endpoints spanning data & analytics, AI & machine learning, finance & Web3, and infrastructure utilities. Every endpoint is priced at $0.02 per request, settled in USDC on the Base network. There are no API keys, no rate limits, and no minimum commitments — callers simply attach an x402 payment header to each request.

The specific endpoint at `/api/v1/customers/60` is listed as "Premium API Access" and returns `application/json` via POST. Its x402 challenge advertises a max amount of 20,000 base units of USDC (0x8335…2913 on Base), which equals $0.02 given USDC's 6 decimals. The platform also exposes endpoints for 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 is extremely thin: the /docs, /pricing, /api, and /README pages all render only a "Connect wallet" prompt with no further content. There is no OpenAPI spec, no request/response schema documentation, and no usage examples available from the crawl. The purpose of the `/api/v1/customers/60` endpoint specifically is unclear — it could be a demo or sample resource. Callers should expect to experiment to discover the actual request format and response shape.

Capabilities

x402-paymentusdc-basepay-per-requestjson-apipost-methodno-api-keydata-analyticsai-inferencefinance-datautility-services

Use cases

  • —Accessing AI inference (sentiment, summarization, classification, embeddings) without API key signup
  • —Fetching real-time financial data like token quotes, gas estimates, and exchange rates
  • —Running utility operations like geocoding, validation, and data conversion on a per-call basis
  • —Exporting data or generating analytics reports with per-request billing

Fit

Best for

  • —Agents or bots that need instant, keyless API access paid per call
  • —Developers prototyping with low-cost, no-commitment endpoints
  • —Web3-native applications that can settle payments in USDC on Base

Not for

  • —High-volume production workloads needing SLAs, rate guarantees, or detailed documentation
  • —Users without a Base-compatible wallet or USDC holdings
  • —Applications requiring well-documented request/response schemas before integration

Quick start

curl -X POST https://lowpaymentfee.com/api/v1/customers/60 \
  -H "Content-Type: application/json" \
  -H "X-PAYMENT: <x402-payment-header>" \
  -d '{}'

Endpoint

URLhttps://lowpaymentfee.com/api/v1/customers/60
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), but there is no OpenAPI spec, no documented request/response schema, no usage examples, and the docs pages are empty. The specific purpose of /api/v1/customers/60 is unexplained, making this effectively a stub listing.

Warnings

  • —Documentation pages (/docs, /pricing, /api, /README) all render only 'Connect wallet' with no usable content
  • —No OpenAPI or schema documentation available for any endpoint
  • —The purpose of /api/v1/customers/60 ('Premium API Access') is unclear — it may be a demo or placeholder resource
  • —No request body schema or response schema is documented; callers must discover the format experimentally

Citations

Provenance

Indexed fromx402_bazaar
Enriched2026-04-18 22:53:22Z · anthropic/claude-opus-4.6 · v2
First seen2026-04-18
Last seen2026-04-23

Agent access

JSONhttps://clawmart.sh/api/listings/cykD5N
Pay-per-call API platform on Base (USDC) covering data, AI, finance, and utility endpoints at $0.02/request. — Clawmart · Clawmart