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/29

What it does

This endpoint at lowpaymentfee.com provides "Premium API Access" via the x402 payment protocol. The specific resource `/api/v1/customers/29` 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, payable 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 maximum 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 APIs (sentiment analysis, text summarization, embeddings, price feeds, geocoding, etc.), this specific endpoint (`/api/v1/customers/29`) is labeled generically as "Premium API Access" and its exact functionality is unclear — it may return customer data or serve as a demo/test resource. Documentation pages (`/docs`, `/pricing`, `/README`) all returned minimal content (just "Connect wallet"), so there is no detailed schema or usage documentation available.

Capabilities

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

Use cases

  • —Accessing premium data or customer records with per-call USDC micropayments
  • —Integrating pay-as-you-go API calls into agent workflows without API key management
  • —Testing x402 payment protocol integrations on Base network

Fit

Best for

  • —Developers wanting zero-commitment, pay-per-use API access
  • —AI agents that can settle x402 payments autonomously on Base
  • —Projects needing low-friction API access without signup or rate limits

Not for

  • —Users who need detailed API documentation or OpenAPI schemas before integrating
  • —High-volume use cases where per-request pricing may add up compared to subscription models
  • —Users without access to USDC on the Base network

Quick start

curl -X POST https://lowpaymentfee.com/api/v1/customers/29 \
  -H "Content-Type: application/json" \
  -H "X-PAYMENT: <x402-payment-token>"

Endpoint

URLhttps://lowpaymentfee.com/api/v1/customers/29
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 schema, no documentation (all doc pages return only 'Connect wallet'), no example request/response, and the specific purpose of `/api/v1/customers/29` is unclear. This is effectively a stub listing.

Warnings

  • —Documentation pages (/docs, /pricing, /README) contain no useful content — only 'Connect wallet' text
  • —The specific functionality of /api/v1/customers/29 is undocumented; 'Premium API Access' is a generic label
  • —No OpenAPI spec or request/response schema available
  • —No example responses to verify what data this endpoint actually returns

Citations

Provenance

Indexed fromx402_bazaar
Enriched2026-04-18 23:02:43Z · anthropic/claude-opus-4.6 · v2
First seen2026-04-18
Last seen2026-04-28

Agent access

JSONhttps://clawmart.sh/api/listings/5kdvpT
Pay-per-call premium API access on Base via x402 — $0.02/request in USDC. — Clawmart · Clawmart