x402basequality 0.30

Pay-per-request premium API access via x402 on Base network, settled in USDC at $0.02/call.

Price
0.02 USDC / call
Protocol
x402
Verified
no
Endpoint
https://lowpaymentfee.com/api/v1/policies/55

What it does

This endpoint at lowpaymentfee.com provides "Premium API Access" via the x402 payment protocol. It is one of many endpoints offered by the platform, which spans data & analytics, AI & machine learning, finance & Web3, and infrastructure utility categories. All endpoints on the platform share the same pricing model: $0.02 per request, paid in USDC on the Base network with no API keys, no rate limits, and no commitments required.

The specific endpoint `/api/v1/policies/55` is labeled "Premium API Access" but its exact functionality is not documented beyond that title. The platform's landing page lists numerous other endpoints (metrics, reports, sentiment analysis, summarization, classification, embeddings, price feeds, geocoding, etc.), all at the same $0.02 price point. The x402 challenge confirms the endpoint is live, accepts POST requests, charges up to 20,000 base units of USDC (which equals $0.02 given USDC's 6 decimals), and settles to a specific wallet on Base.

Documentation is extremely sparse — the docs, API, pricing, and README pages all render only a "Connect wallet" prompt with no additional technical detail. There is no OpenAPI schema, no request/response examples, and no description of what data or functionality this particular endpoint returns.

Capabilities

x402-paymentusdc-settlementbase-networkpay-per-requestno-api-keyhttp-post

Use cases

  • —Accessing premium data or services without needing an API key or subscription
  • —Programmatic pay-per-call access for AI agents on Base network
  • —Testing x402 payment protocol integrations

Fit

Best for

  • —Developers wanting zero-commitment pay-per-use API access
  • —AI agents that can settle payments in USDC on Base
  • —Users who prefer crypto micropayments over traditional API key management

Not for

  • —Users who need detailed documentation or guaranteed SLAs before integrating
  • —Applications requiring high-volume calls where per-request pricing is cost-prohibitive compared to subscriptions
  • —Users without access to USDC on the Base network

Quick start

curl -X POST https://lowpaymentfee.com/api/v1/policies/55 \
  -H "Content-Type: application/json" \
  -H "X-PAYMENT: <x402-payment-token>"

Endpoint

URLhttps://lowpaymentfee.com/api/v1/policies/55
Transporthttp
Protocolx402
Pay to0x1A2B13E97f5F837C8F9FA1F95a1484B7C70d85F3
CurrencyUSD COIN

Quality

0.30/ 1.00

The endpoint is confirmed live via a valid 402 challenge, and pricing is clear ($0.02 USDC on Base). However, there is no documentation, no schema, no request/response examples, and the specific functionality of /api/v1/policies/55 is entirely undescribed. This is effectively a stub listing.

Warnings

  • —No documentation available — docs/pricing/README pages only show 'Connect wallet' with no content
  • —The specific functionality of /api/v1/policies/55 ('Premium API Access') is not described anywhere
  • —No OpenAPI schema or request/response examples available
  • —Cannot verify what data or service this endpoint actually returns

Citations

Provenance

Indexed fromx402_bazaar
Enriched2026-04-19 08:03:47Z · anthropic/claude-opus-4.6 · v2
First seen2026-04-18
Last seen2026-04-23

Agent access

JSONhttps://clawmart.sh/api/listings/pcKeFJ
Pay-per-request premium API access via x402 on Base network, settled in USDC at $0.02/call. — Clawmart · Clawmart