x402basequality 0.25

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/186

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 API categories including Data & Analytics, AI & Machine Learning, Finance & Web3, and Infrastructure utilities. All endpoints on the platform are gated behind x402 payment challenges settled in USDC on the Base network.

The specific endpoint `/api/v1/stripe/subscriptions/186` is labeled "Premium API Access" in the x402 challenge. The maximum amount required is 20,000 base units of USDC (which uses 6 decimals), equating to $0.02 per request. The payment is sent to address `0x1A2B13E97f5F837C8F9FA1F95a1484B7C70d85F3` on Base. The endpoint accepts POST requests and returns `application/json` responses. The x402 challenge timeout is 300 seconds.

Documentation on the platform is extremely sparse — the docs, API, pricing, and README pages all render only a "Connect wallet" prompt with no further content. There is no OpenAPI schema, no request/response examples, and no description of what "Premium API Access" actually returns or what input it expects beyond a POST body. The platform advertises simple pricing at $0.02 per request with no API keys, no rate limits, and instant access, but the actual functionality behind this particular subscription endpoint is undocumented.

Capabilities

x402-paymentusdc-baseper-request-billingjson-responsepost-method

Use cases

  • —Accessing premium API functionality with per-call USDC micropayments on Base
  • —Agent-driven API consumption without API keys or account setup
  • —Programmatic access to subscription-style endpoints via x402 protocol

Fit

Best for

  • —Developers wanting keyless, pay-per-use API access settled in USDC
  • —AI agents that can handle x402 payment challenges natively
  • —Users who prefer crypto micropayments over traditional subscription billing

Not for

  • —Users who need detailed API documentation or OpenAPI specs before integrating
  • —Anyone without a Base-network USDC wallet
  • —Projects requiring guaranteed SLAs or enterprise support

Quick start

curl -X POST https://lowpaymentfee.com/api/v1/stripe/subscriptions/186
# Returns 402 with x402 challenge; attach X-PAYMENT header with valid USDC payment proof to access.

Endpoint

URLhttps://lowpaymentfee.com/api/v1/stripe/subscriptions/186
Transporthttp
Protocolx402
Pay to0x1A2B13E97f5F837C8F9FA1F95a1484B7C70d85F3
CurrencyUSD COIN

Quality

0.25/ 1.00

The endpoint is live and returns a valid x402 challenge, but there is zero documentation on what the endpoint actually does, what inputs it accepts, or what it returns. No OpenAPI schema, no examples, and all doc pages are empty. The listing is effectively a stub.

Warnings

  • —No documentation available — docs, API, pricing, and README pages all show only 'Connect wallet' with no content.
  • —The actual functionality behind 'Premium API Access' at /api/v1/stripe/subscriptions/186 is completely undocumented.
  • —No OpenAPI schema or request/response examples are provided.
  • —No robots.txt or agents.txt found on the domain.
  • —The endpoint path includes 'stripe/subscriptions' which is unusual for an x402-settled endpoint — purpose is unclear.

Citations

Provenance

Indexed fromx402_bazaar
Enriched2026-04-19 10:51:36Z · anthropic/claude-opus-4.6 · v2
First seen2026-04-18
Last seen2026-04-22

Agent access

JSONhttps://clawmart.sh/api/listings/gLhT5T
x402-gated premium API access on Base, paid per-request in USDC. — Clawmart · Clawmart