Pay-per-call HR reviews endpoint on Base via x402, settled in USDC at $0.02/request.
What it does
This endpoint at `/api/v1/hr/reviews/29` is part of the lowpaymentfee.com platform, which offers a broad catalog of pay-per-request APIs accessible via the x402 payment protocol on the Base network. The specific resource appears to serve HR review data (likely employee or company reviews) behind a micropayment wall. Payment is settled in USDC on Base, with a maximum cost of $0.02 per request (20,000 base units of USDC with 6 decimals). No API keys, rate limits, or subscriptions are required — callers simply attach an x402 payment header to each POST request.
The broader lowpaymentfee.com platform advertises endpoints across several categories: Data & Analytics, AI & Machine Learning, Finance & Web3, and Infrastructure utilities. All endpoints share the same $0.02/request pricing model. However, the specific `/api/v1/hr/reviews/29` endpoint is not listed on the site's landing page among the advertised APIs, and no documentation, schema, or example responses are available for it. The response MIME type is `application/json`, and the endpoint accepts HTTP POST. Beyond that, the actual data structure and fields returned are unknown.
Because there is no OpenAPI spec, no request/response examples, and no dedicated documentation for this particular endpoint, the practical utility for agents is limited to trial-and-error. The endpoint is confirmed live (returns a proper 402 x402 challenge), but the lack of input/output schema makes integration speculative.
Capabilities
Use cases
- —Retrieving HR review data for a specific entity (review ID 29)
- —Integrating pay-per-call HR data into agent workflows without subscriptions
- —Accessing review information via micropayment without API key management
Fit
Best for
- —Agents needing on-demand HR review data with no signup
- —Developers experimenting with x402 micropayment protocols
- —Low-volume, pay-as-you-go data retrieval on Base network
Not for
- —Bulk HR data extraction (per-request pricing adds up quickly)
- —Use cases requiring documented request/response schemas before integration
- —Users who cannot transact in USDC on the Base network
Quick start
curl -X POST https://lowpaymentfee.com/api/v1/hr/reviews/29 \
-H "Content-Type: application/json" \
-H "X-PAYMENT: <x402-payment-token>"Endpoint
Quality
The endpoint is live and returns a valid x402 challenge, confirming pricing and payment details. However, there is no OpenAPI spec, no request/response schema, no documentation for this specific endpoint, and it is not listed among the site's advertised APIs. The actual data returned is entirely unknown.
Warnings
- —No documentation or schema available for /api/v1/hr/reviews/29
- —This endpoint is not listed among the advertised APIs on the provider's landing page
- —No example request or response bodies available — integration requires trial-and-error
- —The endpoint path suggests a single fixed resource (review ID 29); unclear if other IDs are supported
Citations
- —The endpoint returns a 402 x402 challenge with maxAmountRequired of 20000 base units of USDC on Basehttps://lowpaymentfee.com/api/v1/hr/reviews/29
- —All endpoints on the platform are priced at $0.02 per request with no API keys, no rate limits, and instant accesshttps://lowpaymentfee.com
- —The USDC asset contract on Base is 0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913https://lowpaymentfee.com/api/v1/hr/reviews/29