x402-gated loan data endpoint on Base, pay-per-request with USDC.
What it does
This endpoint at lowpaymentfee.com provides access to a specific loan resource (ID 64) via the x402 payment protocol. The endpoint accepts POST requests and returns JSON data upon payment of $0.02 in USDC on the Base network. No API keys or rate limits are required — access is gated entirely through the x402 micropayment challenge.
lowpaymentfee.com hosts a broader catalog 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 Base. However, this specific listing covers only the `/api/v1/loans/64` endpoint. The endpoint's description is simply "Premium API Access," and no further documentation, request schema, or response schema is available from the crawled pages. The docs, pricing, and README pages all returned only a "Connect wallet" prompt with no substantive content.
Because the endpoint path references "loans/64," it likely returns data about a specific loan record, but the exact fields and semantics are unknown. The x402 challenge confirms the endpoint is live and accepting payment challenges, with a 300-second timeout for payment settlement.
Capabilities
Use cases
- —Retrieving loan record data without needing an API key
- —Programmatic access to loan information via micropayment
- —Agent-driven financial data retrieval with on-chain settlement
Fit
Best for
- —Agents or applications that need on-demand loan data with no subscription
- —Developers experimenting with x402 payment-gated APIs
- —Workflows requiring keyless, pay-per-use financial data access
Not for
- —Bulk loan data retrieval (pay-per-request at $0.02 adds up)
- —Users who need detailed API documentation or response schemas before integrating
- —Applications that cannot settle payments in USDC on Base
Quick start
curl -X POST https://lowpaymentfee.com/api/v1/loans/64
# Returns 402 with x402 challenge; include X-PAYMENT header with valid payment to access data.Endpoint
Quality
The endpoint is live and returns a valid x402 challenge, but there is no documentation, no request/response schema, and no explanation of what the loan data contains. The docs pages are empty. The listing is essentially a stub with only the payment challenge to go on.
Warnings
- —No API documentation available — docs, pricing, and README pages all return only 'Connect wallet' with no content.
- —No request or response schema provided; the actual data returned by this endpoint is unknown.
- —The endpoint path '/api/v1/loans/64' is not listed on the provider's homepage catalog, which lists analytics, AI, finance, and utility endpoints but not loan endpoints.
- —The 'Premium API Access' description is generic and does not describe the endpoint's function.
Citations
- —The endpoint returns a 402 x402 challenge with maxAmountRequired of 20000 base units (USDC, 6 decimals = $0.02) on Base network.https://lowpaymentfee.com/api/v1/loans/64
- —The site advertises $0.02 per request pricing with no API keys, no rate limits, and instant access on the Base network.https://lowpaymentfee.com
- —The USDC asset address is 0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913 on Base.https://lowpaymentfee.com/api/v1/loans/64
- —Docs, pricing, and README pages returned only 'Connect wallet' with no substantive documentation.https://lowpaymentfee.com/docs