x402-gated loan data endpoint on Base, pay $0.02 per request in USDC.
What it does
This endpoint at lowpaymentfee.com provides access to a specific loan resource (loan ID 69) via the x402 payment protocol. The endpoint is live and returns a 402 challenge requiring payment in USDC on the Base network. The price per request is $0.02 (20,000 base units of USDC with 6 decimals). Payment is made via the x402 "exact" scheme to the specified wallet address, with no API keys or rate limits required.
The broader lowpaymentfee.com platform advertises a range of x402-gated API endpoints across categories including data & analytics, AI & machine learning, finance & Web3, and infrastructure utilities — all priced at $0.02 per request. However, this specific listing is for the `/api/v1/loans/69` endpoint, which is described only as "Premium API Access" with no further documentation on the request body format or response schema. The docs, pricing, and API pages on the site are essentially empty (showing only a "Connect wallet" prompt), so the actual data returned by this endpoint is unknown.
Without documentation on what fields the loan resource contains, what POST body (if any) is expected, or what the response looks like, agents should treat this as a minimally documented endpoint. The x402 challenge is well-formed and the endpoint is confirmed live.
Capabilities
Use cases
- —Retrieving loan data for a specific loan (ID 69) via a micropayment
- —Programmatic access to loan information without API key registration
- —Agent-driven financial data retrieval with per-request USDC payment
Fit
Best for
- —Agents that can settle x402 payments in USDC on Base
- —Developers exploring x402 pay-per-call patterns for financial data
- —Quick, keyless access to loan data without subscription commitments
Not for
- —Users needing detailed API documentation or response schema guarantees
- —Bulk loan data retrieval across many loan IDs (no batch endpoint documented)
- —Non-crypto users who cannot pay in USDC on Base
Quick start
curl -X POST https://lowpaymentfee.com/api/v1/loans/69 \
-H "X-PAYMENT: <x402-payment-header>" \
-H "Content-Type: application/json"Endpoint
Quality
The x402 challenge is well-formed and the endpoint is confirmed live (402 returned). However, there is no documentation on request format, response schema, or what loan data is actually returned. The docs/pricing/API pages are empty stubs. The endpoint path suggests a single hardcoded resource (loan 69) with no broader context.
Warnings
- —No documentation exists for this specific endpoint — request body and response schema are completely unknown.
- —The /docs, /pricing, /api, and /README pages are all empty (only show 'Connect wallet').
- —The endpoint path /api/v1/loans/69 targets a single loan ID; it is unclear if other loan IDs are available or what data is returned.
- —This endpoint is not listed on the provider's own homepage among their advertised APIs.
Citations
- —The endpoint returns a 402 challenge with x402Version 1, exact scheme, on Base network, asset USDC at 0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913, maxAmountRequired 20000https://lowpaymentfee.com/api/v1/loans/69
- —The platform advertises $0.02 per request pricing with no API keys, no rate limits, and instant access on Base networkhttps://lowpaymentfee.com
- —The docs, pricing, API, and README pages show only a 'Connect wallet' prompt with no substantive contenthttps://lowpaymentfee.com/docs