x402-gated order status endpoint on Base, pay-per-call with USDC.
What it does
This endpoint at lowpaymentfee.com provides order status information via a pay-per-request x402 protocol. The specific resource `/api/v1/orders/40/status` returns order status data in JSON format when a valid x402 payment header is included. Payment is settled in USDC on the Base network.
The endpoint charges a maximum of 20,000 base units of USDC (6 decimals), which equals $0.02 per request. The provider's site advertises a flat $0.02/request pricing model across all their APIs with no API keys, no rate limits, and instant access. The x402 challenge uses the "exact" payment scheme with a 300-second timeout.
The broader lowpaymentfee.com platform offers multiple API categories including 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 appear to follow the same $0.02/request pricing. However, this specific listing is for the order status endpoint only, and no detailed documentation about request/response schemas was found in the crawl.
Capabilities
Use cases
- —Checking the status of a specific order via a single paid API call
- —Integrating order tracking into an agent workflow without API key management
- —Demonstrating x402 protocol payment flows for commerce endpoints
Fit
Best for
- —Agents needing on-demand order status without subscription overhead
- —Developers experimenting with x402 pay-per-call protocols
- —Low-volume order status lookups where per-request pricing is preferable
Not for
- —High-volume order management systems needing bulk status checks
- —Users who need detailed order modification or creation capabilities
- —Applications requiring free or subscription-based access
Quick start
curl -X POST https://lowpaymentfee.com/api/v1/orders/40/status \
-H "Content-Type: application/json" \
-H "X-PAYMENT: <x402-payment-token>"Endpoint
Quality
The endpoint is live and returns a valid x402 402 challenge, confirming it works. However, there is no OpenAPI schema, no documentation about request body format or response structure, and the crawled docs/pricing/api pages all returned only 'Connect wallet' with no useful content. The endpoint path suggests a hardcoded order ID (40), which limits generality. Effectively a stub listing.
Warnings
- —No request or response schema available — input/output formats are unknown
- —The endpoint path includes a hardcoded order ID (/orders/40/status); unclear if this generalizes to other order IDs
- —Documentation pages (/docs, /api, /pricing, /README) returned no meaningful content beyond 'Connect wallet'
- —The nature of the 'order' being tracked is unspecified — could be a demo or placeholder
Citations
- —The endpoint returns a 402 x402 challenge with maxAmountRequired of 20000 base units of USDC on Base networkhttps://lowpaymentfee.com/api/v1/orders/40/status
- —The platform charges $0.02 per request with no API keys, no rate limits, and instant access on Base networkhttps://lowpaymentfee.com
- —USDC asset address 0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913 on Basehttps://lowpaymentfee.com/api/v1/orders/40/status