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 loan resource (ID 23) via the x402 payment protocol. The endpoint is live and returns a 402 challenge requiring payment in USDC on the Base network. The specific resource path `/api/v1/loans/23` suggests a financial data or loan-record retrieval service, though the provider's documentation does not describe the loans endpoint specifically.
The provider operates a broader platform offering multiple x402-gated API categories including data analytics, AI/ML inference (sentiment analysis, summarization, classification, embeddings), finance and Web3 data (price feeds, exchange rates, token quotes, gas estimates), and infrastructure utilities (geocoding, validation, conversion, generation). All endpoints are advertised at $0.02 per request with no API keys, no rate limits, and instant access. Payment settles in USDC on the Base L2 network.
The x402 challenge for this specific endpoint specifies a maxAmountRequired of 20000 base units of USDC (0x8335…2913 on Base), which equals $0.02 given USDC's 6 decimals. The endpoint accepts POST requests and returns application/json. No detailed input or output schema is documented beyond the x402 challenge metadata, and the crawled docs/pricing/README pages all rendered only a wallet-connect prompt with no additional content.
Capabilities
Use cases
- —Retrieving loan record data programmatically with per-request USDC payment
- —Integrating loan information into agent workflows without API key management
- —Accessing financial data via x402 micropayment protocol
Fit
Best for
- —Agents or apps that need on-demand loan data without subscription commitments
- —Developers experimenting with x402 payment-gated APIs on Base
- —Workflows requiring keyless, pay-per-use financial data access
Not for
- —Users who need detailed API documentation or schema guarantees before integrating
- —High-volume consumers who would benefit from bulk pricing or subscriptions
- —Anyone needing non-financial endpoints (see the provider's other API paths instead)
Quick start
curl -X POST https://lowpaymentfee.com/api/v1/loans/23 \
-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 for the /api/v1/loans/23 resource specifically—no input schema, no output schema, no example responses. The crawled docs, pricing, and README pages all rendered only a wallet-connect prompt with no usable content. The loan endpoint is not even listed among the provider's advertised APIs on the homepage.
Warnings
- —The /api/v1/loans/23 endpoint is not listed among the provider's advertised API categories on the homepage—its purpose and response format are unknown.
- —No input or output schema is documented; the only metadata comes from the x402 challenge.
- —All documentation pages (docs, pricing, README, api) returned only a wallet-connect prompt with no substantive content.
- —It is unclear whether this endpoint returns real financial loan data or is a demo/placeholder resource.
Citations
- —The x402 challenge specifies maxAmountRequired of 20000 base units of USDC (asset 0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913) on Base networkhttps://lowpaymentfee.com/api/v1/loans/23
- —The provider advertises all endpoints at $0.02 per request with no API keys, no rate limits, and instant access on Base networkhttps://lowpaymentfee.com
- —The provider lists API categories including Data & Analytics, AI & Machine Learning, Finance & Web3, and Infrastructure but does not list a loans endpointhttps://lowpaymentfee.com