x402-gated loan data endpoint on Base, pay $0.02 per request in USDC.
What it does
This endpoint at `/api/v1/loans/32` is part of the lowpaymentfee.com platform, a collection of x402-protocol pay-per-request APIs spanning data analytics, AI/ML inference, finance, crypto, and utility services. The specific resource appears to serve loan-related data (resource ID 32), though the exact response schema and fields are not documented in the available crawl material.
The endpoint is live and returns a valid x402 challenge (HTTP 402) requiring payment of up to 20,000 base units of USDC (0x8335…2913) on the Base network, which equals $0.02 per request (USDC uses 6 decimals). Payment is made via the x402 "exact" scheme to address 0x1A2B13E97f5F837C8F9FA1F95a1484B7C70d85F3, with a 300-second timeout. The endpoint accepts POST requests and returns application/json.
The broader platform advertises a uniform $0.02/request pricing model with no API keys, no rate limits, no minimums, and instant access. However, documentation pages (/docs, /pricing, /README) all returned only a "Connect wallet" prompt with no substantive content, so the actual response payload, input parameters, and detailed behavior of this loans endpoint remain unknown.
Capabilities
Use cases
- —Retrieving loan-specific data on demand with per-request USDC micropayments
- —Integrating loan information into agent workflows without API key management
- —Programmatic access to financial loan records via x402 protocol
Fit
Best for
- —Agents or bots that need keyless, pay-as-you-go access to loan data
- —Developers experimenting with x402 payment protocol integrations
- —Low-volume consumers who want no subscription commitment
Not for
- —Users needing detailed documentation or guaranteed SLAs before integration
- —High-volume batch retrieval where per-request pricing becomes costly
- —Anyone requiring non-crypto payment methods
Quick start
curl -X POST https://lowpaymentfee.com/api/v1/loans/32 \
-H "Content-Type: application/json" \
-H "X-PAYMENT: <x402-payment-header>"Endpoint
Quality
The endpoint is live and returns a valid x402 challenge, but there is no documentation of request parameters, response schema, or what 'loans/32' actually returns. All doc pages are behind a wallet-connect gate with no content. The listing is effectively a stub with only pricing and protocol metadata available.
Warnings
- —No documentation available — /docs, /pricing, and /README all return only 'Connect wallet' with no content
- —Response schema and input parameters for /api/v1/loans/32 are completely unknown
- —The endpoint path suggests a specific loan resource (ID 32) but it is unclear what data it returns or what POST body it expects
- —This endpoint is not listed on the provider's homepage among their advertised APIs, raising questions about its intended use
Citations
- —The endpoint returns a valid x402 challenge with maxAmountRequired of 20000 base units of USDC on Base networkhttps://lowpaymentfee.com/api/v1/loans/32
- —Platform advertises $0.02/request pricing with no API keys, no rate limits, and instant accesshttps://lowpaymentfee.com
- —USDC asset address is 0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913 on Basehttps://lowpaymentfee.com/api/v1/loans/32
- —Documentation pages return only 'Connect wallet' with no substantive contenthttps://lowpaymentfee.com/docs