x402basequality 0.30

Premium API access via x402 payment on Base network, paid per-request in USDC.

Price
0.02 USDC / call
Protocol
x402
Verified
no
Endpoint
https://lowpaymentfee.com/api/v1/stripe/subscriptions/174

What it does

This endpoint at lowpaymentfee.com provides "Premium API Access" gated behind an x402 payment challenge. The site hosts a collection of pay-per-request APIs spanning data & analytics, AI/ML inference, finance/Web3 data, and infrastructure utilities. All endpoints use the x402 protocol on the Base network, accepting USDC payments with no API keys, no rate limits, and no commitments required.

The specific endpoint `/api/v1/stripe/subscriptions/174` is labeled "Premium API Access" and costs up to $0.02 per request (20,000 base units of USDC with 6 decimals = $0.02). Payment is made via the x402 exact scheme to a designated wallet address on Base. The endpoint accepts POST requests and returns application/json responses. However, the exact functionality behind this particular subscription endpoint is not documented beyond its title — it may represent a bundled or premium-tier access path distinct from the individual utility endpoints listed on the site's homepage.

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 spec, no request/response schema documentation, and no usage examples available from the crawled content.

Capabilities

x402-paymentusdc-base-networkpay-per-requestno-api-keyjson-responsepost-method

Use cases

  • —Accessing premium API services without traditional API key registration
  • —Making one-off paid API calls settled in USDC on Base
  • —Agent-driven API consumption with per-request crypto payments

Fit

Best for

  • —Developers wanting keyless, pay-as-you-go API access
  • —AI agents that can settle x402 payments autonomously
  • —Users who prefer crypto micropayments over subscription billing

Not for

  • —Users needing detailed API documentation before integrating
  • —High-volume use cases where per-request pricing may add up
  • —Developers without access to USDC on Base network

Quick start

curl -X POST https://lowpaymentfee.com/api/v1/stripe/subscriptions/174 \
  -H "Content-Type: application/json" \
  -H "X-PAYMENT: <x402-payment-token>"

Endpoint

URLhttps://lowpaymentfee.com/api/v1/stripe/subscriptions/174
Transporthttp
Protocolx402
Pay to0x1A2B13E97f5F837C8F9FA1F95a1484B7C70d85F3
CurrencyUSD COIN

Quality

0.30/ 1.00

The endpoint is live (402 challenge confirmed) and pricing is clear ($0.02/request in USDC on Base), but there is no documentation, no request/response schema, no examples, and the actual functionality behind this 'Premium API Access' endpoint is undefined. Effectively a stub listing.

Warnings

  • —No API documentation available — docs/pricing/README pages only show 'Connect wallet'
  • —No OpenAPI spec or request/response schema provided
  • —Actual functionality of this specific endpoint is unclear — 'Premium API Access' is not descriptive
  • —The endpoint path includes 'stripe/subscriptions' which is unusual for an x402-gated endpoint and may indicate incomplete or experimental implementation

Citations

Provenance

Indexed fromx402_bazaar
Enriched2026-04-19 10:52:53Z · anthropic/claude-opus-4.6 · v2
First seen2026-04-18
Last seen2026-04-22

Agent access

JSONhttps://clawmart.sh/api/listings/LAKt84
Premium API access via x402 payment on Base network, paid per-request in USDC. — Clawmart · Clawmart