x402basequality 0.35

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

Price
0.02 USDC / call
Protocol
x402
Verified
no
Endpoint
https://lowpaymentfee.com/api/v1/customers/49

What it does

This endpoint at lowpaymentfee.com provides "Premium API Access" via the x402 payment protocol. The specific resource `/api/v1/customers/49` appears to be one entry point in a broader platform that offers multiple API categories including Data & Analytics, AI & Machine Learning, Finance & Web3, and Infrastructure utilities. All endpoints on the platform are priced at $0.02 per request, paid in USDC on the Base network with no API keys, rate limits, or commitments required.

The x402 challenge confirms the endpoint is live, accepting POST requests and settling payments in USDC (contract `0x8335...2913` on Base). The max amount required is 20,000 base units of USDC (6 decimals), which equals $0.02 per call. Payment is made via the `exact` scheme with a 300-second timeout. The response MIME type is `application/json`.

While the platform advertises a wide range of endpoints (metrics, reports, sentiment analysis, text summarization, classification, embeddings, price feeds, exchange rates, geocoding, etc.), this specific listing is for `/api/v1/customers/49`. The exact data returned by this particular endpoint is unclear — the description simply says "Premium API Access" without detailing the response schema. Documentation pages (`/docs`, `/pricing`, `/api`, `/README`) all returned only a "Connect wallet" prompt with no substantive content, so the actual request/response formats remain undocumented.

Capabilities

x402-paymentusdc-base-networkpay-per-requestjson-responseno-api-keypost-method

Use cases

  • —Accessing premium data or customer records on a per-request payment basis
  • —Integrating pay-as-you-go API calls into agent workflows without API key management
  • —Demonstrating x402 payment protocol integration on Base network

Fit

Best for

  • —Developers exploring x402 payment protocol integration
  • —Agents needing keyless, pay-per-call API access
  • —Low-volume consumers who want no subscription commitments

Not for

  • —Users needing detailed API documentation or response schema guarantees
  • —High-volume consumers who would benefit from bulk pricing or subscriptions
  • —Anyone requiring non-USDC or non-Base-network payment options

Quick start

curl -X POST https://lowpaymentfee.com/api/v1/customers/49 \
  -H "Content-Type: application/json" \
  -H "X-PAYMENT: <x402-payment-token>"

Endpoint

URLhttps://lowpaymentfee.com/api/v1/customers/49
Transporthttp
Protocolx402
Pay to0x1A2B13E97f5F837C8F9FA1F95a1484B7C70d85F3
CurrencyUSD COIN

Quality

0.35/ 1.00

The endpoint is confirmed live via a valid 402 challenge with clear pricing ($0.02 USDC on Base). However, there is no documentation on what this specific endpoint returns, no request/response schema, and all doc pages are empty. The purpose of `/api/v1/customers/49` is unclear.

Warnings

  • —No documentation available — all doc pages (/docs, /pricing, /api, /README) return only 'Connect wallet' with no content
  • —The specific purpose and response format of /api/v1/customers/49 is undocumented
  • —No OpenAPI spec or output schema beyond basic HTTP method info
  • —The endpoint path suggests customer-specific data but no details on what fields are returned

Citations

Provenance

Indexed fromx402_bazaar
Enriched2026-04-18 23:46:45Z · anthropic/claude-opus-4.6 · v2
First seen2026-04-18
Last seen2026-04-28

Agent access

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