Check order status via x402 micropayment on Base network for $0.02 per request.
What it does
This endpoint at lowpaymentfee.com returns the status of order #139 via a POST request, gated behind an x402 payment challenge. It is part of a broader platform (lowpaymentfee.com) that offers a variety of pay-per-call APIs spanning data analytics, AI/ML inference, finance/Web3 data, and utility services — all priced at $0.02 per request and settled in USDC on the Base network.
The specific endpoint `/api/v1/orders/139/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. No API keys, rate limits, or subscriptions are required — each call is individually settled on-chain.
The platform's landing page advertises additional endpoints across categories like sentiment analysis, text summarization, embeddings, price feeds, gas estimates, geocoding, and more, all at the same $0.02 price point. Documentation pages beyond the landing page returned only a "Connect wallet" prompt with no further technical detail, so the actual response schema and behavior of this specific order-status endpoint are not documented in the crawl material.
Capabilities
Use cases
- —Checking the status of a specific order programmatically with per-call payment
- —Demonstrating x402 protocol integration for micropayment-gated endpoints
- —Agent-driven order tracking without pre-registration or API keys
Fit
Best for
- —Developers experimenting with x402 micropayment protocols
- —Agents that need on-demand order status checks without subscription overhead
- —Projects already operating on the Base L2 network with USDC
Not for
- —Bulk order management requiring thousands of status checks (cost adds up at $0.02 each)
- —Users without a Base-network USDC wallet
- —Anyone needing order status for order IDs other than 139 (only this specific endpoint was probed)
Quick start
curl -X POST https://lowpaymentfee.com/api/v1/orders/139/status \
-H "X-PAYMENT: <x402-payment-token>" \
-H "Content-Type: application/json"Endpoint
Quality
The endpoint is live and returns a valid x402 challenge with clear pricing. However, there is no OpenAPI schema, no documented response format, no examples, and the docs pages are empty beyond a wallet-connect prompt. The endpoint path is hardcoded to a single order ID (139), making its general utility unclear.
Warnings
- —Documentation pages (/docs, /api, /pricing, /README) all returned only 'Connect wallet' with no technical content.
- —The endpoint is hardcoded to order 139 — it is unclear whether other order IDs are available or how to discover them.
- —No response schema or example response is available; actual output format is unknown.
- —The broader platform lists many endpoints but none were individually verified beyond this one.
Citations
- —The x402 challenge requires 20,000 base units of USDC on Base, equaling $0.02 per request.https://lowpaymentfee.com/api/v1/orders/139/status
- —The platform advertises all APIs at $0.02 per request with no API keys, no rate limits, and instant access on the Base network.https://lowpaymentfee.com
- —USDC asset address on Base is 0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913.https://lowpaymentfee.com/api/v1/orders/139/status