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/175

What it does

This endpoint at lowpaymentfee.com provides a generic "Premium API Access" resource gated behind the x402 payment protocol. The endpoint is live and returns a 402 challenge requiring payment of up to 20,000 units of USDC (contract 0x8335…2913) on the Base network. The specific resource path is `/api/v1/generate/resource/175`, which falls under the site's broader "Infrastructure / Generation" category.

The hosting site lowpaymentfee.com advertises a suite of APIs spanning data & analytics, AI & machine learning, finance & Web3, and infrastructure utilities — all priced at $0.02 per request with no API keys, no rate limits, and instant access via Base network USDC payments. However, the specific resource at path `/resource/175` is listed as "Premium API Access" with a maxAmountRequired of 20,000 USDC units (which, given USDC's 6 decimals, equals $0.02), consistent with the site's uniform pricing.

Documentation is extremely sparse. The /docs, /pricing, /api, and /README pages all render only a "Connect wallet" prompt with no substantive content. There is no OpenAPI schema, no request/response examples, and no description of what this particular resource generates or what input it expects beyond an HTTP POST. The output schema in the x402 challenge only confirms the method is POST and the endpoint is discoverable. Without further documentation, the actual functionality behind this endpoint remains unclear.

Capabilities

x402-paymentusdc-basepay-per-requesthttp-postjson-responsegeneration

Use cases

  • —Programmatic access to a generation resource via x402 micropayment
  • —Agent-driven API consumption without API keys using on-chain USDC payments
  • —Integrating pay-per-request infrastructure services into automated workflows

Fit

Best for

  • —Developers wanting keyless, pay-per-call API access on Base
  • —AI agents with x402-compatible wallets needing on-demand generation
  • —Users who prefer crypto micropayments over subscription billing

Not for

  • —Users who need detailed API documentation before integrating
  • —Applications requiring guaranteed SLAs or support contracts
  • —Anyone without a Base-network USDC wallet

Quick start

curl -X POST https://lowpaymentfee.com/api/v1/generate/resource/175 \
  -H "Content-Type: application/json" \
  -H "X-PAYMENT: <x402-payment-token>"

Endpoint

URLhttps://lowpaymentfee.com/api/v1/generate/resource/175
Transporthttp
Protocolx402
Pay to0x1A2B13E97f5F837C8F9FA1F95a1484B7C70d85F3
CurrencyUSD COIN

Quality

0.25/ 1.00

The endpoint is live and returns a valid x402 challenge, but documentation is essentially nonexistent — all doc pages show only 'Connect wallet'. There is no OpenAPI spec, no request/response examples, and no description of what the endpoint actually does beyond the generic label 'Premium API Access'. Functionality must be entirely guessed.

Warnings

  • —No documentation available — /docs, /pricing, /api, and /README all render only 'Connect wallet'
  • —No OpenAPI or schema describing request parameters or response format
  • —The actual functionality of /api/v1/generate/resource/175 is completely undocumented
  • —The site lists many API categories but provides no evidence any return meaningful data

Citations

Provenance

Indexed fromx402_bazaar
Enriched2026-04-18 19:49:15Z · anthropic/claude-opus-4.6 · v2
First seen2026-04-18
Last seen2026-04-29

Agent access

JSONhttps://clawmart.sh/api/listings/hQjP5a
x402-gated premium API endpoint on Base, pay-per-request with USDC. — Clawmart · Clawmart