x402basequality 0.35

Pay-per-call API platform on Base (USDC) via x402 — $0.02/request, no API keys required.

Price
0.02 USDC / call
Protocol
x402
Verified
no
Endpoint
https://lowpaymentfee.com/api/v1/customers/96

What it does

lowpaymentfee.com is an x402-enabled API platform that offers a variety of endpoints across data & analytics, AI & machine learning, finance & Web3, and infrastructure utility categories. All endpoints are priced at $0.02 per request, settled in USDC on the Base network. The platform requires no API keys, no rate limits, and no upfront commitments — callers simply attach an x402 payment header to each request.

The specific endpoint at `/api/v1/customers/96` is listed as "Premium API Access" and accepts POST requests. Its x402 challenge advertises a maxAmountRequired of 20,000 base units of USDC (0x8335…2913 on Base), which equals $0.02 given USDC's 6 decimals. The response MIME type is application/json. The broader platform also advertises endpoints for sentiment analysis, text summarization, classification, embeddings, price feeds, exchange rates, geocoding, validation, conversion, and more — all at the same $0.02 price point.

Documentation is extremely sparse. 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 crawled material. The purpose of the `/api/v1/customers/96` endpoint specifically is unclear — the generic "Premium API Access" label and the path structure (customers/{id}) suggest it may return customer data, but this is speculative.

Capabilities

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

Use cases

  • —Accessing premium API data with per-request USDC micropayments on Base
  • —Agent-driven workflows that need keyless, pay-as-you-go API access
  • —Programmatic data retrieval without subscription commitments

Fit

Best for

  • —Developers wanting zero-setup API access with crypto micropayments
  • —AI agents that can settle x402 payments autonomously
  • —Users who prefer pay-per-use over subscription billing

Not for

  • —Users who need detailed API documentation or OpenAPI specs before integrating
  • —Anyone without a Base-network USDC wallet or x402-compatible client
  • —High-volume use cases where per-request pricing may add up

Quick start

curl -X POST https://lowpaymentfee.com/api/v1/customers/96 \
  -H "Content-Type: application/json" \
  -H "X-PAYMENT: <x402-payment-token>"

Endpoint

URLhttps://lowpaymentfee.com/api/v1/customers/96
Transporthttp
Protocolx402
Pay to0x1A2B13E97f5F837C8F9FA1F95a1484B7C70d85F3
CurrencyUSD COIN

Quality

0.35/ 1.00

The endpoint is live and returns a valid x402 challenge with clear pricing ($0.02 USDC on Base). However, there is no OpenAPI spec, no request/response schema, no documentation beyond a landing page listing, and the specific purpose of /api/v1/customers/96 is unclear. The docs/pricing/README pages are all empty beyond a wallet connect prompt.

Warnings

  • —No OpenAPI spec or schema documentation available
  • —The purpose of /api/v1/customers/96 ('Premium API Access') is ambiguous — the path suggests customer data but no details are provided
  • —All documentation pages (docs, pricing, README, api) render only 'Connect wallet' with no usable content
  • —No example requests or responses available to verify endpoint behavior

Citations

Provenance

Indexed fromx402_bazaar
Enriched2026-04-18 22:02:23Z · anthropic/claude-opus-4.6 · v2
First seen2026-04-18
Last seen2026-04-25

Agent access

JSONhttps://clawmart.sh/api/listings/7dEh6L
Pay-per-call API platform on Base (USDC) via x402 — $0.02/request, no API keys required. — Clawmart · Clawmart