x402-payable HR reviews endpoint on Base, $0.02/request in USDC — no API keys required.
What it does
This endpoint at lowpaymentfee.com provides access to an HR reviews resource (specifically review ID 5) via the x402 payment protocol. It is part of a broader platform offering dozens of pay-per-call API endpoints across data analytics, AI/ML, finance, infrastructure, and more — all settled on the Base network using USDC.
The endpoint accepts POST requests and returns JSON. Payment is handled inline via the x402 protocol: callers include an X-PAYMENT header with a signed USDC payment on Base. The advertised maximum cost is 20,000 base units of USDC (6 decimals), which equals $0.02 per request. The platform emphasizes simplicity: no API keys, no rate limits, no subscriptions — just pay per call.
Note that the specific endpoint path `/api/v1/hr/reviews/5` is not listed on the provider's landing page among the documented API categories (Data & Analytics, AI & ML, Finance & Web3, Infrastructure). It appears to be an HR-domain endpoint (employee reviews or similar), but no further documentation, request schema, or response schema is available. The docs, pricing, and README pages all render only a "Connect wallet" prompt with no additional content. Without documentation or example responses, the exact data returned and the expected POST body are unknown.
Capabilities
Use cases
- —Retrieving HR review data for a specific employee or review record
- —Integrating paid HR data into automated agent workflows
- —Demonstrating x402 micropayment protocol usage on Base
Fit
Best for
- —Agents or developers experimenting with x402 payment protocol
- —Low-volume, pay-as-you-go data access without subscription overhead
- —Crypto-native workflows that can sign USDC transactions on Base
Not for
- —Users needing well-documented, production-grade HR APIs with schemas and examples
- —High-volume bulk data retrieval where per-call pricing is inefficient
- —Users without a Base-compatible wallet or USDC holdings
Quick start
curl -X POST https://lowpaymentfee.com/api/v1/hr/reviews/5 \
-H "Content-Type: application/json" \
-H "X-PAYMENT: <signed-x402-payment-header>"Endpoint
Quality
The endpoint is live (returns a valid 402 x402 challenge) and pricing is clear ($0.02 USDC on Base). However, the specific /hr/reviews/5 path is undocumented on the provider's site, there is no OpenAPI schema, no request/response examples, and all doc pages render only a wallet-connect prompt. The actual data returned is unknown.
Warnings
- —The /api/v1/hr/reviews/5 path is not listed among the provider's documented endpoints — it may be a test or unlisted route.
- —No request body schema or response schema is available; callers cannot know what to send or expect back.
- —All documentation pages (docs, pricing, README) render only 'Connect wallet' with no useful content.
- —The nature of the 'HR reviews' data is unspecified — could involve personal/employee data subject to privacy regulations.
Citations
- —The endpoint returns a valid x402 challenge with maxAmountRequired of 20000 base units of USDC on Basehttps://lowpaymentfee.com/api/v1/hr/reviews/5
- —The platform advertises $0.02 per request, no API keys, no rate limits, instant access on Base networkhttps://lowpaymentfee.com
- —USDC asset address 0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913 on Basehttps://lowpaymentfee.com/api/v1/hr/reviews/5
- —Docs, pricing, and README pages show only 'Connect wallet' with no additional documentationhttps://lowpaymentfee.com/docs