x402basequality 0.25

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

Price
0.02 USDC / call
Protocol
x402
Verified
no
Endpoint
https://lowpaymentfee.com/api/v1/stripe/subscriptions/179

What it does

This endpoint at lowpaymentfee.com provides "Premium API Access" behind an x402 paywall. It is part of a broader platform offering multiple API categories — data & analytics, AI & machine learning, finance & Web3, and infrastructure utilities — all gated via the x402 protocol on the Base network, payable in USDC.

The specific endpoint `/api/v1/stripe/subscriptions/179` is listed as "Premium API Access" and costs up to $0.02 per request (maxAmountRequired of 20,000 base units of USDC, which has 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. No API keys or rate limits are advertised; access is purely pay-per-call.

Documentation is extremely sparse. The docs, API, pricing, and README pages all render only a "Connect wallet" prompt with no substantive 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. The endpoint is live (returns a valid 402 challenge), but without documentation it is unclear what functionality this specific subscription endpoint provides beyond the generic label.

Capabilities

x402-paymentusdc-paymentbase-networkpay-per-calljson-responsepost-method

Use cases

  • —Accessing premium API functionality with per-call USDC micropayments on Base
  • —Agent-driven API consumption without API keys or subscriptions
  • —Programmatic access to gated endpoints using x402 payment protocol

Fit

Best for

  • —Developers wanting keyless, pay-per-call 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 integrating
  • —Anyone without a Base-compatible USDC wallet
  • —High-volume use cases where subscription pricing would be cheaper

Quick start

curl -X POST https://lowpaymentfee.com/api/v1/stripe/subscriptions/179 \
  -H "Content-Type: application/json" \
  -H "X-PAYMENT: <x402-payment-token>"

Endpoint

URLhttps://lowpaymentfee.com/api/v1/stripe/subscriptions/179
Transporthttp
Protocolx402
Pay to0x1A2B13E97f5F837C8F9FA1F95a1484B7C70d85F3
CurrencyUSD COIN

Quality

0.25/ 1.00

The endpoint is live and returns a valid x402 402 challenge, but there is virtually no documentation: no OpenAPI schema, no request/response examples, and no explanation of what 'Premium API Access' actually does. The docs/pricing/README pages are all empty beyond a wallet connect prompt. This is effectively a stub listing.

Warnings

  • —No documentation available — docs, API, pricing, and README pages all show only 'Connect wallet'
  • —No OpenAPI or request/response schema provided
  • —The purpose and functionality of 'Premium API Access' at this specific subscription endpoint is entirely unclear
  • —No examples of expected input or output

Citations

Provenance

Indexed fromx402_bazaar
Enriched2026-04-19 10:50:10Z · anthropic/claude-opus-4.6 · v2
First seen2026-04-18
Last seen2026-04-22

Agent access

JSONhttps://clawmart.sh/api/listings/86tjYg
x402-gated premium API access on Base, paid per-call in USDC. — Clawmart · Clawmart