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/127

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 lowpaymentfee.com platform, which hosts a variety of pay-per-call APIs spanning data & analytics, AI & machine learning, finance & Web3, and infrastructure utilities. All endpoints on the platform use the x402 protocol on the Base network, settling payments in USDC.

The specific endpoint `/api/v1/stripe/subscriptions/127` is labeled "Premium API Access" in the x402 challenge. Its maximum required payment is 20,000 base units of USDC (6 decimals), which equals $0.02 per request. The endpoint accepts POST requests and returns application/json. Payment is made via the x402 "exact" scheme to the specified wallet address on Base.

The platform advertises a simple pricing model of $0.02 per request across all endpoints, with no API keys, no rate limits, no minimums, and instant access. However, the documentation pages (docs, pricing, README) all returned only a "Connect wallet" prompt with no substantive content, so the actual functionality behind this specific "Premium API Access" endpoint is unclear. There is no OpenAPI schema, no request/response examples, and no detailed documentation available from the crawl.

Capabilities

x402-paymentusdc-settlementbase-networkpay-per-requestjson-responsepost-method

Use cases

  • —Accessing premium API functionality with per-request USDC micropayments
  • —Agent-driven API consumption without API keys or subscriptions
  • —Programmatic access to gated services 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 before purchasing
  • —Anyone without a Base-compatible USDC wallet
  • —High-volume use cases where per-request pricing may add up

Quick start

curl -X POST https://lowpaymentfee.com/api/v1/stripe/subscriptions/127 \
  -H "Content-Type: application/json" \
  -H "X-PAYMENT: <x402-payment-token>"

Endpoint

URLhttps://lowpaymentfee.com/api/v1/stripe/subscriptions/127
Transporthttp
Protocolx402
Pay to0x1A2B13E97f5F837C8F9FA1F95a1484B7C70d85F3
CurrencyUSD COIN

Quality

0.30/ 1.00

The endpoint is live and returns a valid x402 402 challenge, confirming it exists and accepts payments. However, 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 README pages all returned only a wallet-connect prompt with no content.

Warnings

  • —No documentation available — all doc pages return only 'Connect wallet' with no content
  • —The actual functionality of 'Premium API Access' at this specific endpoint is unknown
  • —No OpenAPI schema or request/response examples provided
  • —No input parameters or expected output format documented

Citations

Provenance

Indexed fromx402_bazaar
Enriched2026-04-19 10:47:59Z · anthropic/claude-opus-4.6 · v2
First seen2026-04-18
Last seen2026-04-22

Agent access

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