x402-gated premium API access on Base, pay $0.02 per request in USDC.
What it does
This endpoint at lowpaymentfee.com is part of a broader platform offering pay-per-request APIs across data & analytics, AI/ML, finance/Web3, and infrastructure categories. The specific endpoint `/api/v1/policies/94` is labeled "Premium API Access" and is gated via the x402 protocol on the Base network. Payment is in USDC (contract 0x8335…2913) at a maximum cost of $0.02 per request (20,000 base units with 6 decimals).
The platform advertises a simple pricing model: $0.02 per request with no API keys, no rate limits, no minimums, and instant access. Other endpoints on the same domain cover sentiment analysis, text summarization, classification, embeddings, price feeds, exchange rates, geocoding, validation, conversion, and data export — all at the same $0.02 price point. However, the specific functionality behind `/api/v1/policies/94` is not documented beyond the generic "Premium API Access" label.
The endpoint is live and returns a valid x402 challenge (HTTP 402) with version 1, accepting POST requests. The payment is settled on the Base L2 network. Documentation on the site is extremely thin — the docs, API, pricing, and README pages all render only a "Connect wallet" prompt with no further technical detail or schema information.
Capabilities
Use cases
- —Accessing a gated API endpoint with per-request USDC micropayments on Base
- —Integrating x402-compatible agents that pay for API calls without API keys
- —Testing x402 protocol payment flows against a live endpoint
Fit
Best for
- —Developers experimenting with x402 pay-per-request patterns
- —Agents needing keyless, on-demand API access settled in USDC on Base
- —Low-volume consumers who prefer pay-as-you-go over subscriptions
Not for
- —Users needing detailed API documentation or schemas before integrating
- —High-volume use cases where $0.02/request adds up significantly
- —Anyone without a Base-compatible USDC wallet
Quick start
curl -X POST https://lowpaymentfee.com/api/v1/policies/94 \
-H "Content-Type: application/json" \
-H "X-PAYMENT: <x402-payment-token>"Endpoint
Quality
The endpoint is live and returns a valid x402 challenge, but there is virtually no documentation about what the endpoint actually does. No input/output schema, no examples, and the docs pages are empty beyond a wallet-connect prompt. The 'Premium API Access' label is generic and uninformative.
Warnings
- —The specific functionality of /api/v1/policies/94 is completely undocumented — 'Premium API Access' is the only description available.
- —All documentation pages (docs, API, pricing, README) render only 'Connect wallet' with no technical content.
- —No OpenAPI spec, no request/response schema, and no usage examples are provided.
- —It is unclear what data or service this endpoint returns upon successful payment.
Citations
- —The endpoint returns a valid x402 challenge with maxAmountRequired of 20000 in USDC on Base networkhttps://lowpaymentfee.com/api/v1/policies/94
- —Platform pricing is $0.02 per request with no API keys, no rate limits, no minimumshttps://lowpaymentfee.com
- —USDC asset contract on Base is 0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913https://lowpaymentfee.com/api/v1/policies/94
- —The platform offers endpoints across Data & Analytics, AI & ML, Finance & Web3, and Infrastructure categorieshttps://lowpaymentfee.com