Check order status via x402 micropayment on Base (USDC, $0.02/request).
What it does
This endpoint at lowpaymentfee.com returns the status of order #190 via a POST request, gated by an x402 payment challenge. It is part of a broader platform offering dozens of pay-per-call API endpoints across data analytics, AI/ML inference, finance/Web3, and infrastructure utilities — all priced at $0.02 per request settled in USDC on the Base network.
The specific endpoint `/api/v1/orders/190/status` is labeled "Premium API Access" in the x402 challenge. The payment scheme is "exact" with a maxAmountRequired of 20,000 base units of USDC (0x8335…2913 on Base), which equals $0.02 given USDC's 6 decimals. Payment is made via the X-PAYMENT header per the x402 protocol (version 1). No API keys or rate limits are advertised; access is instant once payment is included.
The broader platform lists endpoints for sentiment analysis, text summarization, classification, embeddings, price feeds, exchange rates, token quotes, gas estimates, geocoding, validation, conversion, and generation — all at the same $0.02 price point. However, no OpenAPI schema, detailed documentation, or example request/response payloads are available from the crawled pages (docs, pricing, and README pages all returned only a "Connect wallet" prompt with no substantive content). The actual data returned by this specific order-status endpoint is unknown beyond the stated mimeType of application/json.
Capabilities
Use cases
- —Checking the status of a specific order (#190) via a single paid API call
- —Demonstrating x402 protocol integration for agent-to-service micropayments
- —Programmatic order tracking without API key management
Fit
Best for
- —Developers experimenting with x402 payment-gated APIs
- —Agents that need to make one-off paid API calls without subscription setup
- —Projects requiring USDC micropayment integration on Base
Not for
- —Bulk order-status polling across many orders (only order 190 is exposed at this endpoint)
- —Users who need detailed API documentation or response schemas before integrating
- —Applications requiring free or subscription-based access
Quick start
curl -X POST https://lowpaymentfee.com/api/v1/orders/190/status \
-H "X-PAYMENT: <x402-payment-token>" \
-H "Content-Type: application/json"Endpoint
Quality
The endpoint is live (402 challenge captured) and pricing is clear ($0.02 USDC on Base). However, there is no OpenAPI schema, no documentation beyond a landing page listing, no example request/response payloads, and the docs/pricing/README pages are empty. The endpoint path is hardcoded to a single order ID, making its general utility unclear.
Warnings
- —No OpenAPI or detailed schema available — response format is unknown beyond application/json
- —Documentation pages (/docs, /pricing, /README) returned no substantive content
- —Endpoint is hardcoded to order 190; unclear if other order IDs are supported or how to discover them
- —The platform lists many endpoints but none have documented request/response schemas
Citations
- —maxAmountRequired is 20000 base units of USDC on Base (asset 0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913), equaling $0.02https://lowpaymentfee.com/api/v1/orders/190/status
- —Platform advertises $0.02/request with no API keys, no rate limits, instant access on Base networkhttps://lowpaymentfee.com
- —Platform lists endpoints across Data & Analytics, AI & ML, Finance & Web3, and Infrastructure categorieshttps://lowpaymentfee.com