x402basequality 0.30

Pay-per-call API platform on Base (USDC) 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/generate/resource/23

What it does

lowpaymentfee.com is an x402-enabled API platform that provides a broad catalog of endpoints spanning data analytics, AI/ML inference, finance/Web3 data, and general utility services. All endpoints are paid per-request using USDC on the Base network via the x402 protocol — no API keys, no rate limits, and no subscriptions required.

The specific endpoint at `/api/v1/generate/resource/23` is listed as "Premium API Access" and accepts POST requests. The x402 challenge indicates a maximum cost of 20,000 base units of USDC (0.02 USD per call, since USDC uses 6 decimals). Payment is settled on-chain to a specified address using the "exact" scheme. The platform advertises additional endpoints for sentiment analysis, text summarization, classification, embeddings, price feeds, exchange rates, geocoding, validation, conversion, and data export — all at the same $0.02 price point.

Documentation beyond the landing page is extremely sparse; the /docs, /api, /pricing, and /README pages all render only a "Connect wallet" prompt with no substantive content. There is no OpenAPI spec, no request/response schema documentation, and no usage examples available from the crawl. The exact functionality behind the "Premium API Access" resource/23 endpoint is unclear — the name and description are generic. Agents should treat this as a low-cost experimental endpoint and verify behavior with a test call.

Capabilities

x402-paymentusdc-base-networkpay-per-requestno-api-keypost-endpointjson-response

Use cases

  • —Accessing utility or generation endpoints without API key registration
  • —Making low-cost per-request API calls settled in USDC on Base
  • —Programmatic agents purchasing API access via x402 protocol

Fit

Best for

  • —Developers wanting zero-signup, pay-as-you-go API access
  • —AI agents that can settle x402 payments on Base
  • —Users who prefer crypto micropayments over subscription billing

Not for

  • —Users needing well-documented, production-grade APIs with SLAs
  • —Anyone without a Base-compatible USDC wallet
  • —Use cases requiring guaranteed uptime or support

Quick start

curl -X POST https://lowpaymentfee.com/api/v1/generate/resource/23 \
  -H "Content-Type: application/json" \
  -H "X-PAYMENT: <x402-payment-header>" \
  -d '{}'

Example

Request

{
  "url": "https://lowpaymentfee.com/api/v1/generate/resource/23",
  "body": {},
  "method": "POST",
  "headers": {
    "X-PAYMENT": "<x402-payment-header>",
    "Content-Type": "application/json"
  }
}

Endpoint

URLhttps://lowpaymentfee.com/api/v1/generate/resource/23
Transporthttp
Protocolx402
Pay to0x1A2B13E97f5F837C8F9FA1F95a1484B7C70d85F3
CurrencyUSD COIN

Quality

0.30/ 1.00

The endpoint is live (402 challenge confirmed) and pricing is clear ($0.02 USDC on Base), but there is no documentation, no OpenAPI spec, no request/response schema, and the purpose of 'resource/23' is entirely opaque. All non-landing pages returned only 'Connect wallet' with no content.

Warnings

  • —No documentation available — /docs, /api, /pricing, /README all render only 'Connect wallet'
  • —No OpenAPI or schema describing request parameters or response format
  • —The specific function of 'Premium API Access' at resource/23 is unknown
  • —No examples or sample responses available from any crawled page

Citations

Provenance

Indexed fromx402_bazaar
Enriched2026-04-18 22:53:49Z · anthropic/claude-opus-4.6 · v2
First seen2026-04-18
Last seen2026-04-23

Agent access

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