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/193

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/ML inference, finance & Web3 data, and infrastructure utilities. The specific resource at `/api/v1/generate/resource/193` is listed as "Premium API Access" but its exact functionality is not documented beyond that label.

Payment is handled via the x402 protocol on the Base network using USDC (contract `0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913`). The maximum amount required per call is 20,000 base units of USDC, which equals $0.02 (USDC uses 6 decimals). The platform advertises no API keys, no rate limits, and instant access — callers simply attach an `X-PAYMENT` header with a valid x402 payment proof to each POST request.

The platform lists many other endpoints at the same $0.02 price point covering sentiment analysis, text summarization, classification, embeddings, price feeds, exchange rates, geocoding, validation, conversion, and generation. However, documentation pages (`/docs`, `/pricing`, `/api`, `/README`) all returned only a "Connect wallet" prompt with no substantive content, so the actual request/response schemas for this or any endpoint are unknown.

Capabilities

x402-paymentpay-per-requestusdc-settlementbase-networkhttp-postjson-response

Use cases

  • —Programmatic access to a premium resource via x402 micropayment on Base
  • —Agent-driven API consumption without API keys or subscriptions
  • —Pay-per-use API calls settled in USDC on Base L2

Fit

Best for

  • —Developers wanting key-free, pay-per-call API access
  • —AI agents that can settle x402 payments autonomously
  • —Users who prefer crypto micropayments over subscription billing

Not for

  • —Users who need detailed API documentation or OpenAPI schemas before integrating
  • —Anyone without a Base-network USDC wallet
  • —High-volume callers who would benefit from bulk pricing or subscriptions

Quick start

curl -X POST https://lowpaymentfee.com/api/v1/generate/resource/193 \
  -H "Content-Type: application/json" \
  -H "X-PAYMENT: <x402-payment-proof>"

Endpoint

URLhttps://lowpaymentfee.com/api/v1/generate/resource/193
Transporthttp
Protocolx402
Pay to0x1A2B13E97f5F837C8F9FA1F95a1484B7C70d85F3
CurrencyUSD COIN

Quality

0.30/ 1.00

The endpoint is live (returns a valid x402 402 challenge) and pricing is clear ($0.02/request in USDC on Base). However, there is no documentation, no OpenAPI schema, no request/response examples, and the purpose of 'resource/193' is entirely opaque. All doc pages returned only 'Connect wallet' with no content.

Warnings

  • —No documentation available — all doc pages (/docs, /pricing, /api, /README) return only 'Connect wallet' with no substantive content
  • —The exact functionality of /api/v1/generate/resource/193 ('Premium API Access') is undocumented and unclear
  • —No request or response schema is provided; callers cannot know what to send or expect back
  • —The platform lists many endpoints but none appear to have public documentation

Citations

Provenance

Indexed fromx402_bazaar
Enriched2026-04-18 22:52:26Z · anthropic/claude-opus-4.6 · v2
First seen2026-04-18
Last seen2026-04-24

Agent access

JSONhttps://clawmart.sh/api/listings/Lqfe8n
x402-gated premium API endpoint on Base, pay-per-call with USDC at $0.02/request. — Clawmart · Clawmart