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 33) 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), settled to a specified wallet address.
lowpaymentfee.com is a broader platform offering multiple x402-gated API categories including Data & Analytics, AI & Machine Learning, Finance & Web3, and Infrastructure utilities — all priced at $0.02 per request. This particular endpoint (/api/v1/loans/33) is not listed on the site's main catalog, suggesting it may be a specific resource within a loans or finance vertical. The endpoint accepts POST requests and returns application/json.
No API keys or rate limits are advertised. Payment is handled entirely through the x402 protocol: callers attach an X-PAYMENT header with a signed USDC payment on Base. No OpenAPI schema, detailed documentation, or example responses are available for this specific endpoint, so the exact shape of the returned loan data is unknown.
Capabilities
Use cases
- —Retrieving loan details for a specific loan record
- —Integrating loan data into financial dashboards or agent workflows
- —Programmatic access to loan information without API key registration
Fit
Best for
- —Agents or apps that need on-demand loan data with no signup
- —Developers experimenting with x402 payment-gated APIs
- —Crypto-native workflows that can pay in USDC on Base
Not for
- —Bulk loan data retrieval (pay-per-request model may be costly at scale)
- —Users who need detailed API documentation or response schema guarantees
- —Non-crypto users who cannot send USDC on Base
Quick start
curl -X POST https://lowpaymentfee.com/api/v1/loans/33 \
-H "X-PAYMENT: <signed-x402-payment-header>" \
-H "Content-Type: application/json"Endpoint
Quality
The endpoint is live and returns a valid x402 challenge, but there is no OpenAPI schema, no documentation for this specific endpoint, no example request/response, and the endpoint is not listed on the provider's own catalog page. The actual data returned is entirely unknown.
Warnings
- —No OpenAPI or schema documentation available for this endpoint
- —This specific endpoint (/api/v1/loans/33) is not listed on the provider's main API catalog — its purpose and response format are unclear
- —Docs, pricing, API, and README pages all render only a 'Connect wallet' prompt with no substantive content
- —Response schema and required POST body are unknown — callers must experiment to discover the contract
Citations
- —The endpoint returns a 402 challenge requiring 20000 base units of USDC on Base networkhttps://lowpaymentfee.com/api/v1/loans/33
- —USDC asset contract on Base: 0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913https://lowpaymentfee.com/api/v1/loans/33
- —All listed APIs are priced at $0.02 per request with no API keys, no rate limits, and instant access on Base networkhttps://lowpaymentfee.com