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 #166 via an x402-gated POST request. It is part of a broader platform 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/166/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 x402 protocol's X-PAYMENT header, with no API keys or rate limits required. The endpoint accepts POST requests and returns application/json.
Note that while the platform advertises many endpoint categories (analytics, AI, finance, infrastructure), the specific endpoint being listed here is an order-status lookup. Documentation beyond the landing page is extremely thin — 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 endpoint is confirmed live (402 challenge captured successfully).
Capabilities
Use cases
- —Checking the status of a specific order (#166) programmatically
- —Demonstrating x402 micropayment integration on Base
- —Agent-driven order tracking with per-call USDC payment
Fit
Best for
- —Developers experimenting with x402 payment protocol
- —Agents that need to check order status without API key management
- —Low-friction pay-per-use API access on Base
Not for
- —Bulk order management or querying arbitrary order IDs (endpoint is hardcoded to order 166)
- —Users who need detailed API documentation or OpenAPI specs before integrating
- —Non-crypto users who cannot pay in USDC on Base
Quick start
curl -X POST https://lowpaymentfee.com/api/v1/orders/166/status \
-H "X-PAYMENT: <x402_payment_token>" \
-H "Content-Type: application/json"Endpoint
Quality
The endpoint is live and returns a valid x402 challenge, but documentation is essentially nonexistent — no request/response schemas, no OpenAPI spec, and all doc pages render only 'Connect wallet'. The endpoint path is hardcoded to a single order ID (166), making its general utility unclear. Pricing is clear ($0.02/request in USDC on Base).
Warnings
- —No API documentation available; /docs, /pricing, /api, and /README pages all show only 'Connect wallet'
- —Endpoint is hardcoded to order ID 166 — unclear if other order IDs are supported or how to discover them
- —No request body schema or response schema documented anywhere
- —The 'Premium API Access' label is generic and does not describe what the endpoint actually returns
- —Platform advertises many API categories but no evidence any of them have real backing services
Citations
- —The endpoint returns a 402 challenge with maxAmountRequired of 20000 base units of USDC on Basehttps://lowpaymentfee.com/api/v1/orders/166/status
- —USDC asset address is 0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913 on Basehttps://lowpaymentfee.com/api/v1/orders/166/status
- —Platform pricing is $0.02 per request with no API keys, no rate limits, and instant accesshttps://lowpaymentfee.com
- —Documentation pages (/docs, /api, /pricing, /README) render only 'Connect wallet'https://lowpaymentfee.com/docs