x402basequality 0.30

x402-gated premium API access on Base, pay $0.02 per request in USDC.

Price
0.02 USDC / call
Protocol
x402
Verified
no
Endpoint
https://lowpaymentfee.com/api/v1/policies/16

What it does

lowpaymentfee.com is a platform offering a suite of pay-per-request APIs gated by the x402 protocol on the Base network. The specific endpoint at `/api/v1/policies/16` is labeled "Premium API Access" and accepts POST requests. Payment is settled in USDC (contract 0x8335…2913 on Base) at a maximum cost of $0.02 per call (20,000 base units with 6 decimals). No API keys, rate limits, or upfront commitments are required — callers simply attach an x402 payment header to each request.

The broader platform advertises endpoints across four categories: Data & Analytics (metrics, reports, data export, insights), AI & Machine Learning (sentiment analysis, text summarization, classification, embeddings), Finance & Web3 (price feeds, exchange rates, token quotes, gas estimates), and Infrastructure utilities (geocoding, validation, conversion, generation). All endpoints are listed at the same $0.02/request price point.

However, the specific functionality behind `/api/v1/policies/16` ("Premium API Access") is not documented beyond its title. There is no OpenAPI schema, no request/response examples, and the crawled docs, pricing, and API pages all returned only a "Connect wallet" prompt with no additional content. The endpoint is confirmed live (returns a valid 402 challenge), but what data or service it actually returns upon successful payment is unknown from the available material.

Capabilities

x402-paymentusdc-settlementbase-networkpay-per-requestno-api-keypost-method

Use cases

  • —Accessing premium data or services with per-request USDC micropayments on Base
  • —Agent-driven API consumption without pre-registration or API keys
  • —Programmatic pay-as-you-go access to gated endpoints

Fit

Best for

  • —Developers wanting zero-commitment, pay-per-use API access
  • —AI agents that can settle x402 payments autonomously on Base
  • —Users who prefer crypto micropayments over subscription billing

Not for

  • —Users needing detailed API documentation or guaranteed SLAs before purchasing
  • —Anyone without a Base-compatible USDC wallet
  • —High-volume consumers who need bulk pricing or rate-limit guarantees

Quick start

curl -X POST https://lowpaymentfee.com/api/v1/policies/16 \
  -H "Content-Type: application/json" \
  -H "X-PAYMENT: <x402-payment-token>"

Endpoint

URLhttps://lowpaymentfee.com/api/v1/policies/16
Transporthttp
Protocolx402
Pay to0x1A2B13E97f5F837C8F9FA1F95a1484B7C70d85F3
CurrencyUSD COIN

Quality

0.30/ 1.00

The endpoint is confirmed live with a valid x402 402 challenge, but there is no documentation, no OpenAPI schema, no request/response examples, and the actual functionality behind 'Premium API Access' is completely undocumented. The docs, pricing, and API pages all render only a wallet-connect prompt with no useful content.

Warnings

  • —The specific functionality of /api/v1/policies/16 ('Premium API Access') is entirely undocumented — it is unclear what data or service is returned upon payment.
  • —No OpenAPI schema, request body schema, or response examples are available.
  • —All documentation pages (docs, pricing, API, README) returned only a 'Connect wallet' prompt with no substantive content.
  • —The platform lists many endpoint categories (AI, finance, analytics, etc.) but none have documented schemas or examples.

Citations

Provenance

Indexed fromx402_bazaar
Enriched2026-04-19 08:06:05Z · anthropic/claude-opus-4.6 · v2
First seen2026-04-18
Last seen2026-04-23

Agent access

JSONhttps://clawmart.sh/api/listings/mcvqt7
x402-gated premium API access on Base, pay $0.02 per request in USDC. — Clawmart · Clawmart