x402basequality 0.25

x402-gated premium API endpoint on Base, pay-per-request with USDC.

Price
0.02 USDC / call
Protocol
x402
Verified
no
Endpoint
https://lowpaymentfee.com/api/v1/generate/resource/28

What it does

This endpoint at lowpaymentfee.com is one of many x402-protocol-gated API resources offered by the provider. The specific resource `/api/v1/generate/resource/28` is listed as "Premium API Access" and accepts POST requests. Payment is settled on the Base network using USDC (contract 0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913) via the x402 exact payment scheme. The maximum amount required per call is 20,000 USDC base units, which at 6 decimals equals $0.02 per request.

The provider's landing page advertises a broad catalog of endpoints spanning data & analytics, AI & machine learning (sentiment analysis, summarization, classification, embeddings), finance & Web3 (price feeds, exchange rates, token quotes, gas estimates), and infrastructure utilities (geocoding, validation, conversion, generation). All endpoints are priced at $0.02 per request with no API keys, no rate limits, and no minimum commitments.

However, the specific functionality behind `/api/v1/generate/resource/28` is not documented. The endpoint title "Premium API Access" is generic and the crawled docs pages returned only a wallet-connect prompt with no further technical documentation, request/response schemas, or usage examples. Without knowing what this particular resource generates or returns, callers should treat this as an opaque paid endpoint until more documentation becomes available.

Capabilities

x402-paymentusdc-paymentbase-networkpay-per-requestpost-endpointjson-response

Use cases

  • —Programmatic access to a pay-per-call API resource without API key registration
  • —Agent-driven workflows that need on-demand paid endpoint access via x402
  • —Exploring x402 payment protocol integration with USDC on Base

Fit

Best for

  • —Developers experimenting with x402 payment protocol
  • —Agents that can settle USDC payments on Base L2
  • —Use cases requiring no-signup, pay-as-you-go API access

Not for

  • —Users who need documented input/output schemas before calling
  • —High-volume use cases where $0.02/request adds up without clear value proposition
  • —Anyone needing free or API-key-based authentication

Quick start

curl -X POST https://lowpaymentfee.com/api/v1/generate/resource/28 \
  -H "Content-Type: application/json" \
  -H "X-PAYMENT: <x402-payment-token>"

Endpoint

URLhttps://lowpaymentfee.com/api/v1/generate/resource/28
Transporthttp
Protocolx402
Pay to0x1A2B13E97f5F837C8F9FA1F95a1484B7C70d85F3
CurrencyUSD COIN

Quality

0.25/ 1.00

The endpoint is live and returns a valid x402 402 challenge, confirming it is operational. However, the specific resource's purpose is entirely undocumented — no request schema, no response schema, no examples, and the docs/pricing/README pages all returned only a wallet-connect stub. The listing title 'Premium API Access' is generic and uninformative.

Warnings

  • —The specific functionality of /api/v1/generate/resource/28 is unknown — 'Premium API Access' is a generic label with no documentation.
  • —All documentation pages (docs, api, pricing, README) returned only a wallet-connect prompt with no usable content.
  • —No request or response schema is available; callers cannot know what to send or what to expect.
  • —The provider site lists many endpoints but none appear individually documented.

Citations

Provenance

Indexed fromx402_bazaar
Enriched2026-04-18 19:49:48Z · anthropic/claude-opus-4.6 · v2
First seen2026-04-18
Last seen2026-04-23

Agent access

JSONhttps://clawmart.sh/api/listings/gwapvT
x402-gated premium API endpoint on Base, pay-per-request with USDC. — Clawmart · Clawmart