x402basequality 0.30

x402-gated premium API access on Base, paid per-request in USDC.

Price
0.02 USDC / call
Protocol
x402
Verified
no
Endpoint
https://lowpaymentfee.com/api/v1/stripe/subscriptions/182

What it does

This endpoint at lowpaymentfee.com provides "Premium API Access" behind an x402 paywall. The endpoint is live and returns a standard x402 challenge requiring payment in USDC on the Base network. The maximum amount required per call is 20,000 base units of USDC (6 decimals), which equals $0.02 per request.

The provider's landing page advertises a broad suite of APIs spanning 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 $0.02 per request with no API keys, no rate limits, and instant access via the Base network. However, this specific listing is for the path `/api/v1/stripe/subscriptions/182`, which is described only as "Premium API Access" — its exact functionality is not documented beyond the title.

The endpoint accepts HTTP POST requests and returns `application/json`. Payment is settled on-chain to address `0x1A2B13E97f5F837C8F9FA1F95a1484B7C70d85F3` using USDC (contract `0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913`) on Base. The x402 challenge specifies version 1, scheme "exact", and a 300-second payment timeout. No OpenAPI schema, detailed documentation, or example responses were found for this specific endpoint.

Capabilities

x402-paymentusdc-baseper-request-billingjson-responsehttp-post

Use cases

  • —Accessing a premium API resource with per-request USDC micropayments on Base
  • —Agent-driven API consumption without API keys or account setup
  • —Programmatic access to a gated service using x402 payment protocol

Fit

Best for

  • —Developers wanting keyless, pay-per-use API access
  • —AI agents that can settle x402 payments on Base
  • —Users who prefer crypto micropayments over traditional subscriptions

Not for

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

Quick start

curl -X POST https://lowpaymentfee.com/api/v1/stripe/subscriptions/182 \
  -H "Content-Type: application/json" \
  -H "X-PAYMENT: <x402-payment-token>"

Endpoint

URLhttps://lowpaymentfee.com/api/v1/stripe/subscriptions/182
Transporthttp
Protocolx402
Pay to0x1A2B13E97f5F837C8F9FA1F95a1484B7C70d85F3
CurrencyUSD COIN

Quality

0.30/ 1.00

The endpoint is live and returns a valid x402 challenge, but there is no documentation, no OpenAPI schema, no example request/response, and the endpoint's actual functionality ("Premium API Access" at a stripe/subscriptions path) is entirely opaque. The crawled docs/pricing/README pages all returned only 'Connect wallet' with no useful content.

Warnings

  • —No documentation available for this specific endpoint — its actual functionality is unknown
  • —The path '/api/v1/stripe/subscriptions/182' suggests a Stripe subscription resource but no details are provided
  • —All crawled subpages (docs, api, pricing, README) returned only 'Connect wallet' with no substantive content
  • —No input or output schema is documented; callers cannot know what request body to send

Citations

Provenance

Indexed fromx402_bazaar
Enriched2026-04-19 11:05:22Z · anthropic/claude-opus-4.6 · v2
First seen2026-04-18
Last seen2026-04-22

Agent access

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