Insurance claims data endpoint on Base, pay-per-request via x402 with USDC.
What it does
This endpoint at lowpaymentfee.com provides access to insurance claims data (specifically claim ID 4) via a pay-per-call x402 payment model. The endpoint accepts POST requests and returns JSON. Payment is settled on the Base network using USDC (USD Coin) at a cost of $0.02 per request (20,000 base units with 6 decimals). No API keys or rate limits are required — callers simply attach an X-PAYMENT header with a valid x402 payment proof.
The provider, lowpaymentfee.com, hosts a broad catalog of x402-gated APIs spanning data analytics, AI/ML inference, finance, crypto, and utility services, all priced uniformly at $0.02 per request. This specific endpoint falls under an insurance claims category. However, the crawled documentation provides no detail on the request body schema, the structure of the returned claims data, or what claim ID 4 represents. The endpoint is confirmed live (returns a proper 402 challenge), but the lack of documentation about input/output formats means callers will need to experiment or contact the provider for integration details.
Payment is made to wallet 0x1A2B13E97f5F837C8F9FA1F95a1484B7C70d85F3 using USDC contract 0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913 on Base. The x402 challenge specifies a maximum timeout of 300 seconds.
Capabilities
Use cases
- —Retrieving insurance claims data on demand without subscription
- —Programmatic access to claims records for automated workflows
- —Agent-driven insurance data retrieval with crypto micropayments
Fit
Best for
- —Developers needing one-off insurance claims lookups
- —AI agents that can settle USDC payments on Base
- —Applications requiring no-signup, pay-as-you-go data access
Not for
- —Bulk insurance data exports (single-claim endpoint, no batch support documented)
- —Users without USDC on Base network
- —Anyone needing detailed API documentation before integration
Quick start
curl -X POST https://lowpaymentfee.com/api/v1/insurance/claims/4 \
-H "Content-Type: application/json" \
-H "X-PAYMENT: <x402-payment-proof>"Endpoint
Quality
The endpoint is confirmed live with a valid 402 challenge and clear pricing ($0.02 USDC on Base). However, there is no documentation on request body format, response schema, or what the insurance claims data actually contains. The listing is essentially a stub with only payment metadata available.
Warnings
- —No request body schema documented — callers must guess or discover input format experimentally
- —No response schema documented — unknown what fields are returned for a claims lookup
- —The specific resource '/insurance/claims/4' suggests a hardcoded claim ID; unclear if other IDs are available or how to discover them
- —Insurance claims category not listed on the provider's homepage catalog, raising questions about whether this is a production endpoint or a demo
Citations
- —Endpoint returns a valid x402 402 challenge with USDC on Base networkhttps://lowpaymentfee.com/api/v1/insurance/claims/4
- —Provider advertises $0.02 per request uniform pricing with no API keys, no rate limitshttps://lowpaymentfee.com
- —USDC contract on Base is 0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913https://lowpaymentfee.com/api/v1/insurance/claims/4