x402-gated premium API access on Base, pay $0.02 per request in USDC.
What it does
This endpoint at lowpaymentfee.com provides "Premium API Access" behind an x402 paywall on the Base network. The specific resource `/api/v1/claims/62` is one of many endpoints offered by the platform, which spans categories including data & analytics, AI & machine learning, finance & Web3, and infrastructure utilities. All endpoints on the platform are priced at $0.02 per request, payable in USDC (USD Coin) on Base with no API keys, no rate limits, and no minimum commitments.
The x402 challenge confirms the endpoint is live, accepting POST requests and settling payments via the "exact" scheme. The max amount required is 20,000 base units of USDC (0x8335…2913 on Base), which equals $0.02 given USDC's 6 decimals. Payments are sent to address 0x1A2B13E97f5F837C8F9FA1F95a1484B7C70d85F3 with a 300-second timeout.
However, the specific functionality of `/api/v1/claims/62` is unclear. The endpoint path does not match any of the documented API routes listed on the homepage (analytics, AI, finance, utils). The description is simply "Premium API Access" with no further detail on what data or service is returned. No OpenAPI schema, request/response examples, or detailed documentation were found — the docs, pricing, and README pages all rendered only a wallet-connect prompt with no substantive content. Prospective users should be aware that the exact behavior of this particular endpoint is undocumented.
Capabilities
Use cases
- —Programmatic access to a paid API endpoint without needing API keys or subscriptions
- —Agent-driven workflows that pay per call using USDC on Base
- —Testing x402 payment flows against a live, low-cost endpoint
Fit
Best for
- —Developers experimenting with x402 payment protocol integrations
- —AI agents that need keyless, pay-per-use API access on Base
- —Low-cost per-request billing without rate limits or commitments
Not for
- —Users who need detailed documentation or guaranteed SLAs before integrating
- —Use cases requiring known, well-documented response schemas
- —Free or non-crypto payment workflows
Quick start
curl -X POST https://lowpaymentfee.com/api/v1/claims/62 \
-H "Content-Type: application/json" \
-H "X-PAYMENT: <x402-payment-token>"Endpoint
Quality
The endpoint is confirmed live via a valid 402 challenge with clear pricing ($0.02 USDC on Base). However, the specific functionality of /api/v1/claims/62 is entirely undocumented — no schema, no examples, no description beyond the generic title. Docs pages returned only wallet-connect prompts with no content.
Warnings
- —The exact functionality of /api/v1/claims/62 is unknown — it does not match any documented route on the homepage
- —No OpenAPI spec, request schema, or response schema available
- —Documentation pages (/docs, /pricing, /README) contain no substantive content beyond a wallet-connect prompt
- —The endpoint path 'claims/62' suggests a resource-specific route but its purpose is not explained anywhere
Citations
- —All endpoints priced at $0.02 per request with no API keys, no rate limits, and instant access on Base networkhttps://lowpaymentfee.com
- —x402 challenge returns maxAmountRequired of 20000 base units of USDC on Base (equals $0.02)https://lowpaymentfee.com/api/v1/claims/62
- —Platform offers endpoints across data & analytics, AI & ML, finance & Web3, and infrastructure categorieshttps://lowpaymentfee.com