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/104

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/104` is listed as "Premium API Access" but its exact functionality is not documented beyond that label. It is likely one of the platform's generation or utility endpoints.

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 endpoint accepts POST requests and returns `application/json`. No API keys or rate limits are advertised — callers simply attach an `X-PAYMENT` header with a valid x402 payment proof.

The broader platform advertises endpoints for sentiment analysis, text summarization, classification, embeddings, price feeds, exchange rates, geocoding, validation, conversion, and generation — all at the same $0.02/request price point. Documentation pages (`/docs`, `/pricing`, `/api`, `/README`) returned only a "Connect wallet" prompt with no substantive content, so detailed request/response schemas for this specific resource are unavailable.

Capabilities

x402-paymentpay-per-requestusdc-basejson-apino-api-keypost-method

Use cases

  • —Programmatic access to a generation or utility endpoint without subscription or API key management
  • —Agent-driven workflows that need on-demand paid API calls settled in USDC on Base
  • —Testing x402 payment flows against a low-cost live endpoint

Fit

Best for

  • —Developers experimenting with x402 payment protocol integrations
  • —AI agents that need instant, keyless API access with crypto micropayments
  • —Low-volume or sporadic usage where $0.02/call is more economical than a subscription

Not for

  • —Users who need detailed API documentation or guaranteed SLAs before integrating
  • —High-volume production workloads where per-call pricing adds up quickly
  • —Users without a Base-network USDC wallet or x402-compatible client

Quick start

curl -X POST https://lowpaymentfee.com/api/v1/generate/resource/104 \
  -H "Content-Type: application/json" \
  -H "X-PAYMENT: <x402-payment-proof>" \
  -d '{}'

Endpoint

URLhttps://lowpaymentfee.com/api/v1/generate/resource/104
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 request/response schema, and the purpose of resource/104 is entirely opaque. All doc pages returned only 'Connect wallet' with no content.

Warnings

  • —The exact functionality of /api/v1/generate/resource/104 is undocumented — 'Premium API Access' is the only description available.
  • —All documentation pages (/docs, /pricing, /api, /README) returned no useful content, only a 'Connect wallet' prompt.
  • —No request body schema or response schema is available; callers must experiment to discover the API contract.
  • —The platform lists many endpoints but none appear individually documented.

Citations

Provenance

Indexed fromx402_bazaar
Enriched2026-04-18 23:01:49Z · anthropic/claude-opus-4.6 · v2
First seen2026-04-18
Last seen2026-04-28

Agent access

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