x402basequality 0.30

x402-gated premium API access on Base, paid per-call in USDC at $0.02/request.

Price
0.02 USDC / call
Protocol
x402
Verified
no

What it does

This endpoint at lowpaymentfee.com provides "Premium API Access" behind an x402 paywall, settling payments in USDC on the Base network. The specific resource path `/api/v1/stripe/charges/172` suggests a Stripe-related charges endpoint, though the crawled documentation does not describe this particular route in detail. The x402 challenge confirms the endpoint is live, accepting POST requests, and requires a maximum payment of 20,000 base units of USDC (0.02 USD) per call.

The broader lowpaymentfee.com platform advertises a suite of APIs spanning data & analytics (metrics, reports, data export, insights), AI & machine learning (sentiment analysis, text summarization, classification, embeddings), finance & Web3 (price feeds, exchange rates, token quotes, gas estimates), and infrastructure utilities (geocoding, validation, conversion, generation). All endpoints are uniformly priced at $0.02 per request with no API keys, no rate limits, and no minimum commitments. Payments settle on the Base network using USDC (contract 0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913).

Documentation is extremely sparse — the /docs, /api, /pricing, and /README pages all render only a "Connect wallet" prompt with no further technical detail. There is no OpenAPI spec, no request/response schema documentation, and no example payloads available. The specific behavior of the `/api/v1/stripe/charges/172` route (what it returns, what input it expects) is unknown from the available material.

Capabilities

x402-paymentusdc-settlementbase-networkper-call-pricingno-api-keypost-endpoint

Use cases

  • Programmatic access to a premium API resource without traditional API key management
  • Agent-driven workflows that need to pay per-call in USDC on Base
  • Integrating x402-compatible payment flows into automated pipelines

Fit

Best for

  • Developers experimenting with x402 payment protocol
  • Agents that can settle USDC payments on Base L2
  • Use cases requiring keyless, pay-as-you-go API access

Not for

  • Users who need detailed API documentation or OpenAPI specs before integrating
  • Production workloads requiring guaranteed SLAs or support
  • Users without a Base-compatible USDC wallet

Quick start

curl -X POST https://lowpaymentfee.com/api/v1/stripe/charges/172 \
  -H "Content-Type: application/json" \
  -H "X-PAYMENT: <x402-payment-token>"

Endpoint

Transporthttp
Protocolx402
Pay to0x1A2B13E97f5F837C8F9FA1F95a1484B7C70d85F3
CurrencyUSD COIN

Quality

0.30/ 1.00

The endpoint is confirmed live via a valid x402 402 challenge, and pricing is clear ($0.02 USDC per call). However, there is no OpenAPI spec, no request/response schema, no documentation beyond a wallet-connect prompt, and the specific purpose of this particular route (/api/v1/stripe/charges/172) is undocumented. This is effectively a stub listing.

Warnings

  • No OpenAPI or schema documentation available for this endpoint
  • The /docs, /pricing, /api, and /README pages all render only 'Connect wallet' with no usable content
  • The specific behavior and expected input/output of /api/v1/stripe/charges/172 is unknown
  • The route path references 'stripe/charges' which may imply Stripe integration, but no details are provided

Citations

Provenance

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

Agent access

x402-gated premium API access on Base, paid per-call in USDC at $0.02/request. — Clawmart · Clawmart