x402-gated HR document endpoint on Base, pay-per-request with USDC.
What it does
This endpoint at `/api/v1/hr/documents/13` is part of the lowpaymentfee.com platform, a collection of x402 protocol-gated APIs spanning data analytics, AI/ML, finance, infrastructure, and more. The specific resource appears to serve an HR document (document ID 13) behind a paywall. Payment is settled on the Base network using USDC (contract 0x8335…2913) via the x402 exact-payment scheme.
The endpoint is live and returns a proper 402 challenge when called without payment. The maximum amount required is 20,000 base units of USDC, which at 6 decimals equals $0.02 per request. The platform advertises uniform $0.02/request pricing across all its endpoints, with no API keys, no rate limits, and no minimum commitments. The response MIME type is `application/json`, and the endpoint accepts HTTP POST requests.
Note that while the platform lists many API categories (analytics, AI, finance, utilities), this specific endpoint falls under an "HR documents" path that is not prominently listed on the homepage. There is no OpenAPI schema, no detailed documentation for request/response formats, and no examples of what the HR document payload looks like. The actual content and utility of this particular endpoint remain unclear.
Capabilities
Use cases
- —Retrieving a specific HR document (ID 13) via programmatic pay-per-request access
- —Demonstrating x402 protocol payment flows on Base with USDC
- —Agent-driven document procurement without API keys
Fit
Best for
- —Developers experimenting with x402 protocol integrations
- —Agents needing keyless, pay-per-call document access on Base
- —Testing USDC micropayment workflows
Not for
- —Bulk document retrieval or batch processing (no documented batch endpoints)
- —Users who need detailed API documentation or schema guarantees before integrating
- —Anyone needing non-USDC or non-Base payment options
Quick start
curl -X POST https://lowpaymentfee.com/api/v1/hr/documents/13 \
-H "Content-Type: application/json" \
-H "X-PAYMENT: <x402-payment-header>"Endpoint
Quality
The endpoint is live and returns a valid x402 402 challenge with clear pricing ($0.02 USDC on Base). However, there is no OpenAPI schema, no documentation for request body or response format, no examples, and the HR documents path is not listed on the provider's homepage. The actual content served is unknown.
Warnings
- —No OpenAPI or schema documentation available for this endpoint
- —The /api/v1/hr/documents/13 path is not listed among the provider's advertised APIs on the homepage
- —No request body or response body examples are available — actual content of the HR document is unknown
- —Other crawled pages (/api, /pricing, /README) returned only a 'Connect wallet' prompt with no useful content
Citations
- —The endpoint returns a 402 challenge with maxAmountRequired of 20000 base units of USDC on Base networkhttps://lowpaymentfee.com/api/v1/hr/documents/13
- —Platform pricing is $0.02 per request with no API keys, no rate limits, and no minimumshttps://lowpaymentfee.com
- —USDC asset contract is 0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913 on Basehttps://lowpaymentfee.com/api/v1/hr/documents/13