Pay-per-call premium API access on Base via x402 — $0.02/request in USDC.
What it does
This endpoint at lowpaymentfee.com provides "Premium API Access" via the x402 payment protocol. The specific resource path `/api/v1/generate/resource/147` appears to be part of a broader platform offering dozens of API endpoints across 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 on the Base network with no API keys, rate limits, or commitments required.
The x402 challenge for this particular resource confirms it is live and accepts payment via the "exact" scheme on Base. The maximum amount required is 20,000 base units of USDC (0x8335…), which equals $0.02 given USDC's 6 decimals. Payment is sent to address 0x1A2B13E97f5F837C8F9FA1F95a1484B7C70d85F3 with a timeout of 300 seconds. The endpoint accepts HTTP POST requests and returns application/json.
However, the exact functionality of resource/147 is not documented anywhere in the crawled material. The platform's landing page lists named endpoints (e.g., Geocoding, Validation, Generation) but does not map them to numbered resource IDs. Without documentation or an OpenAPI spec, the specific input parameters and response format for this endpoint remain unknown. The docs, API, pricing, and README pages all rendered only a "Connect wallet" prompt with no substantive content.
Capabilities
Use cases
- —Programmatic access to a premium API resource without needing API keys or subscriptions
- —Agent-driven workflows that pay per call using USDC on Base
- —Testing x402 payment protocol integrations with a low-cost endpoint
Fit
Best for
- —Developers experimenting with x402 payment-gated APIs
- —AI agents that need keyless, pay-per-use API access
- —Low-volume or sporadic API consumption without subscription overhead
Not for
- —Users who need detailed documentation or guaranteed SLAs before integrating
- —High-volume use cases where $0.02/request adds up without bulk discounts
- —Anyone who needs to know exactly what resource/147 returns before paying
Quick start
curl -X POST https://lowpaymentfee.com/api/v1/generate/resource/147 \
-H "Content-Type: application/json" \
-H "X-PAYMENT: <x402-payment-token>" \
-d '{}'Endpoint
Quality
The endpoint is live (402 challenge confirmed) and pricing is clear ($0.02 USDC on Base), but there is no documentation, no OpenAPI spec, no examples, and the specific functionality of resource/147 is completely undocumented. The docs pages are empty beyond a wallet-connect prompt.
Warnings
- —The specific functionality of /api/v1/generate/resource/147 is not documented anywhere in the crawled material.
- —No OpenAPI spec, request schema, or response schema is available.
- —All documentation pages (docs, API, pricing, README) returned only a 'Connect wallet' prompt with no content.
- —The platform lists many endpoint categories but does not map numbered resource IDs to specific features.
Citations
- —The endpoint returns a 402 challenge with maxAmountRequired of 20000 base units of USDC on Basehttps://lowpaymentfee.com/api/v1/generate/resource/147
- —All endpoints on the platform are priced at $0.02 per request with no API keys, rate limits, or commitmentshttps://lowpaymentfee.com
- —The platform offers endpoints across Data & Analytics, AI & ML, Finance & Web3, and Infrastructure categorieshttps://lowpaymentfee.com
- —USDC asset address is 0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913 on Base networkhttps://lowpaymentfee.com/api/v1/generate/resource/147