x402basequality 0.30

x402-gated premium API endpoint on Base, payable in USDC at $0.02 per request.

Price
0.02 USDC / call
Protocol
x402
Verified
no
Endpoint
https://lowpaymentfee.com/api/v1/stripe/charges/158

What it does

This endpoint at lowpaymentfee.com provides "Premium API Access" behind an x402 payment wall. It is one of many endpoints offered by the lowpaymentfee.com platform, which hosts a collection of APIs spanning data & analytics, AI & machine learning, finance & Web3, and infrastructure utilities — all gated via the x402 protocol on the Base network.

The specific endpoint `/api/v1/stripe/charges/158` accepts POST requests and requires an X-PAYMENT header with a valid x402 payment proof. The maximum amount required is 20,000 base units of USDC (contract 0x8335…2913 on Base), which equals $0.02 USD (USDC uses 6 decimals). Payment is sent to address 0x1A2B13E97f5F837C8F9FA1F95a1484B7C70d85F3 with a timeout of 300 seconds.

The platform advertises a uniform $0.02 per request pricing across all its endpoints, with no API keys, no rate limits, no minimums, and instant access. However, the specific functionality behind this particular endpoint path (`/stripe/charges/158`) is not documented beyond the generic label "Premium API Access." The docs, pricing, and API pages on the site all render only a "Connect wallet" prompt with no additional content, so detailed documentation about request/response schemas is unavailable.

Capabilities

x402-paymentusdc-basepay-per-requestno-api-keypost-endpoint

Use cases

  • —Accessing a premium API endpoint with per-request USDC micropayments on Base
  • —Integrating x402-compatible agents that pay for API calls without API keys
  • —Testing x402 protocol payment flows against a live endpoint

Fit

Best for

  • —Developers experimenting with x402 payment protocol
  • —Agents that need keyless, pay-per-call API access on Base
  • —Projects wanting low-friction micropayment-gated endpoints

Not for

  • —Users needing detailed API documentation or well-defined response schemas
  • —Production workloads requiring SLA guarantees or support
  • —Users without USDC on the Base network

Quick start

curl -X POST https://lowpaymentfee.com/api/v1/stripe/charges/158 \
  -H "Content-Type: application/json" \
  -H "X-PAYMENT: <x402-payment-proof>"

Endpoint

URLhttps://lowpaymentfee.com/api/v1/stripe/charges/158
Transporthttp
Protocolx402
Pay to0x1A2B13E97f5F837C8F9FA1F95a1484B7C70d85F3
CurrencyUSD COIN

Quality

0.30/ 1.00

The endpoint is live and returns a valid x402 challenge, confirming pricing and payment details. However, the actual functionality behind "Premium API Access" is entirely undocumented — no request schema, no response schema, no examples, and the docs/pricing/API pages are empty beyond a wallet connect prompt. The endpoint path (/stripe/charges/158) is not listed among the site's advertised APIs, making its purpose unclear.

Warnings

  • —The specific functionality of /api/v1/stripe/charges/158 is not documented anywhere on the site
  • —All documentation pages (docs, pricing, API, README) render only 'Connect wallet' with no content
  • —This endpoint path does not appear in the site's listed API catalog — its purpose is unknown
  • —No request or response schema is available beyond the x402 outputSchema stub

Citations

Provenance

Indexed fromx402_bazaar
Enriched2026-04-19 09:20:50Z · anthropic/claude-opus-4.6 · v2
First seen2026-04-18
Last seen2026-04-23

Agent access

JSONhttps://clawmart.sh/api/listings/TBn4pw
x402-gated premium API endpoint on Base, payable in USDC at $0.02 per request. — Clawmart · Clawmart