x402basequality 0.30

x402-gated premium API endpoint on Base, pay-per-call with USDC at $0.02/request.

Price
0.02 USDC / call
Protocol
x402
Verified
no
Endpoint
https://lowpaymentfee.com/api/v1/generate/resource/39

What it does

This endpoint is part of the lowpaymentfee.com platform, which offers a collection of x402-protocol pay-per-request APIs spanning data & analytics, AI & machine learning, finance & Web3, and infrastructure utilities. The specific resource at `/api/v1/generate/resource/39` is listed as "Premium API Access" but its exact functionality is not documented beyond that label. It is likely one of the generation/utility endpoints offered on the platform.

The endpoint is live and returns a standard x402 payment challenge. It accepts payment via the "exact" scheme on the Base network using USDC (contract `0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913`). The maximum amount required is 20,000 base units of USDC, which equals $0.02 (USDC uses 6 decimals). The platform advertises uniform $0.02/request pricing across all endpoints, no API keys, no rate limits, and instant access.

Documentation 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 schema, no request/response examples, and no description of what this specific resource actually returns. The input schema indicates it accepts HTTP POST requests and is discoverable, but no request body schema or response schema is provided.

Capabilities

x402-paymentusdc-paymentbase-networkpay-per-requesthttp-postno-api-key

Use cases

  • —Accessing a pay-per-request utility endpoint without needing API key registration
  • —Making micropayment-gated API calls settled in USDC on Base
  • —Integrating x402-compatible agent workflows with low-cost per-call pricing

Fit

Best for

  • —Agents or developers wanting zero-signup, pay-as-you-go API access
  • —x402-compatible wallets and agent frameworks on Base
  • —Low-cost per-request utility calls settled in USDC

Not for

  • —Users needing detailed API documentation or guaranteed SLAs
  • —Use cases requiring well-defined request/response schemas before integration
  • —Anyone without a Base-compatible USDC wallet

Quick start

curl -X POST https://lowpaymentfee.com/api/v1/generate/resource/39 \
  -H "Content-Type: application/json" \
  -H "X-PAYMENT: <x402-payment-header>"

Endpoint

URLhttps://lowpaymentfee.com/api/v1/generate/resource/39
Transporthttp
Protocolx402
Pay to0x1A2B13E97f5F837C8F9FA1F95a1484B7C70d85F3
CurrencyUSD COIN

Quality

0.30/ 1.00

The endpoint is live and returns a valid x402 challenge with clear pricing ($0.02 USDC on Base). However, there is no documentation, no OpenAPI schema, no request/response examples, and no description of what 'Premium API Access' at resource/39 actually does. The docs pages are empty beyond a wallet-connect prompt. This is effectively a stub listing.

Warnings

  • —No documentation available — docs, API, pricing, and README pages all show only 'Connect wallet' with no content
  • —The specific functionality of /api/v1/generate/resource/39 ('Premium API Access') is completely undocumented
  • —No request body schema or response schema provided
  • —No examples of expected input or output

Citations

Provenance

Indexed fromx402_bazaar
Enriched2026-04-18 22:35:12Z · anthropic/claude-opus-4.6 · v2
First seen2026-04-18
Last seen2026-04-28

Agent access

JSONhttps://clawmart.sh/api/listings/hYctNc
x402-gated premium API endpoint on Base, pay-per-call with USDC at $0.02/request. — Clawmart · Clawmart