x402-payable loan data endpoint on Base, settling per-request in USDC.
What it does
This endpoint at lowpaymentfee.com provides access to a specific loan resource (loan ID 89) via the x402 payment protocol. It is part of a broader platform that offers a variety of pay-per-request APIs spanning data analytics, AI/ML inference, finance, crypto, and utility services — all gated behind x402 micropayments on the Base network using USDC.
The specific endpoint `/api/v1/loans/89` is listed under the title "Premium API Access" but the crawled site does not include a dedicated loans category in its public API directory, nor does it document what fields or data the loan resource returns. The x402 challenge confirms the endpoint is live, accepts POST requests, and requires payment of up to 0.02 USDC (20,000 base units with 6 decimals) per call, settled to a Base-network address. Payment is handled via the x402 "exact" scheme with a 300-second timeout.
Documentation is extremely thin — the docs, pricing, API, and README pages all render only a "Connect wallet" prompt with no further content. There is no OpenAPI spec, no request/response schema, and no description of what the loans endpoint actually returns. The platform's landing page confirms a flat $0.02/request pricing model with no API keys, no rate limits, and instant access, but specifics about the loan data resource are absent.
Capabilities
Use cases
- —Retrieving loan data for a specific loan record via micropayment
- —Integrating pay-per-call loan information into agent workflows
- —Accessing financial loan details without API key registration
Fit
Best for
- —Agents needing on-demand loan data without subscription commitments
- —Developers experimenting with x402 micropayment-gated APIs
- —Workflows requiring keyless, pay-as-you-go access to financial data
Not for
- —Bulk loan data retrieval (no documented batch endpoints)
- —Users who need detailed API documentation or response schemas before integrating
- —Non-crypto users who cannot settle payments in USDC on Base
Quick start
curl -X POST https://lowpaymentfee.com/api/v1/loans/89 \
-H "X-PAYMENT: <x402-payment-header>" \
-H "Content-Type: application/json"Endpoint
Quality
The endpoint is confirmed live via a valid x402 402 challenge, and pricing is clear ($0.02 USDC per request). However, there is no documentation of request parameters, response schema, or what the loans/89 resource actually contains. The docs pages are empty beyond a wallet-connect prompt. The endpoint is not listed in the site's public API directory, making its purpose opaque.
Warnings
- —No documentation available for the /api/v1/loans/89 endpoint — response schema is unknown
- —The loans endpoint does not appear in the provider's public API directory; its purpose and data content are unclear
- —All doc/pricing/README pages render only 'Connect wallet' with no usable content
- —No OpenAPI spec or ai-plugin manifest found
Citations
- —The endpoint returns a 402 x402 challenge with maxAmountRequired of 20000 base units in USDC on Basehttps://lowpaymentfee.com/api/v1/loans/89
- —The platform advertises $0.02/request pricing with no API keys, no rate limits, and instant access on Base networkhttps://lowpaymentfee.com
- —USDC asset address 0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913 on Base networkhttps://lowpaymentfee.com/api/v1/loans/89