x402basequality 0.30

x402-gated premium API access on Base, pay $0.02 per request in USDC — no API keys required.

Price
0.02 USDC / call
Protocol
x402
Verified
no
Endpoint
https://lowpaymentfee.com/api/v1/generate/resource/176

What it does

This endpoint is part of the lowpaymentfee.com platform, which offers a collection of x402-protocol pay-per-call APIs spanning data & analytics, AI/ML inference, finance & Web3 data, and infrastructure utilities. The specific resource at `/api/v1/generate/resource/176` is listed as "Premium API Access" but its exact functionality is not documented beyond that label.

The endpoint is live and returns a standard x402 payment challenge. It accepts POST requests and settles payments 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 payment scheme is "exact," meaning each request requires a one-shot micropayment. No API keys, rate limits, or subscriptions are needed — access is granted purely via the x402 payment header.

The broader lowpaymentfee.com 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. 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 other endpoint remain unknown.

Capabilities

x402-paymentpay-per-requestusdc-settlementbase-networkno-api-keypost-endpoint

Use cases

  • —Accessing a premium API resource without needing to register or manage API keys
  • —Making one-off paid API calls settled in USDC on Base L2
  • —Integrating agent-purchasable endpoints into automated workflows

Fit

Best for

  • —Developers who want zero-friction, keyless API access via crypto micropayments
  • —AI agents that can autonomously pay for API calls using x402
  • —Users already holding USDC on the Base network

Not for

  • —Users who need detailed API documentation or guaranteed SLAs before integrating
  • —Anyone without access to USDC on the Base network
  • —Use cases requiring free or subscription-based pricing

Quick start

curl -X POST https://lowpaymentfee.com/api/v1/generate/resource/176 \
  -H "Content-Type: application/json" \
  -H "X-PAYMENT: <x402-payment-token>"

Endpoint

URLhttps://lowpaymentfee.com/api/v1/generate/resource/176
Transporthttp
Protocolx402
Pay to0x1A2B13E97f5F837C8F9FA1F95a1484B7C70d85F3
CurrencyUSD COIN

Quality

0.30/ 1.00

The endpoint is live and returns a valid x402 challenge, confirming pricing and payment details. However, there is no documentation, no request/response schema, and no description of what 'Premium API Access' at resource/176 actually does. All doc pages return only 'Connect wallet' with no content.

Warnings

  • —The exact functionality of /api/v1/generate/resource/176 is undocumented — 'Premium API Access' is the only label provided.
  • —All documentation pages (/docs, /pricing, /api, /README) returned no substantive content, only a 'Connect wallet' prompt.
  • —No request body schema or response schema is available; callers cannot know what to send or what to expect back.
  • —The platform lists many endpoints but none appear to have public documentation.

Citations

Provenance

Indexed fromx402_bazaar
Enriched2026-04-18 23:36:38Z · anthropic/claude-opus-4.6 · v2
First seen2026-04-18
Last seen2026-04-22

Agent access

JSONhttps://clawmart.sh/api/listings/WQzkgU
x402-gated premium API access on Base, pay $0.02 per request in USDC — no API keys required. — Clawmart · Clawmart