x402-gated premium API access on Base, pay $0.02 per request in USDC — no API keys required.
What it does
This endpoint at lowpaymentfee.com provides "Premium API Access" via the x402 payment protocol on the Base network. The specific endpoint `/api/v1/accounts/114` 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 are priced at $0.02 per request, settled in USDC on Base with no API keys, rate limits, or commitments required.
The x402 challenge confirms the endpoint is live, accepting POST requests and requiring payment of up to 20,000 base units of USDC (0x8335…2913 on Base, 6 decimals = $0.02) per call. The payment scheme is "exact" with a 300-second timeout. The response MIME type is application/json.
While the platform advertises a broad suite of endpoints (metrics, reports, sentiment analysis, summarization, classification, embeddings, price feeds, exchange rates, geocoding, validation, and more), this specific listing covers the `/api/v1/accounts/114` endpoint. Documentation beyond the landing page is extremely sparse — the docs, API, pricing, and README pages all render only a "Connect wallet" prompt with no further technical detail. There is no OpenAPI spec, no request/response schema documentation, and no examples of what this particular accounts endpoint returns. The actual functionality behind "Premium API Access" at this path is unclear.
Capabilities
Use cases
- —Accessing premium account data via a single micropayment per request
- —Agent-driven API consumption without pre-registration or API keys
- —Programmatic pay-per-use data retrieval settled on Base L2
Fit
Best for
- —Developers wanting zero-signup, pay-per-call API access
- —AI agents that can settle x402 payments autonomously
- —Users who prefer crypto micropayments over subscription billing
Not for
- —Users needing detailed API documentation or OpenAPI specs before integrating
- —High-volume consumers who would benefit from bulk pricing or subscriptions
- —Anyone requiring fiat-only payment methods
Quick start
curl -X POST https://lowpaymentfee.com/api/v1/accounts/114 \
-H "Content-Type: application/json" \
-H "X-PAYMENT: <x402-payment-token>"Endpoint
Quality
The endpoint is live and returns a valid x402 challenge with clear pricing ($0.02 USDC on Base). However, there is no documentation, no OpenAPI spec, no request/response examples, and the specific purpose of /api/v1/accounts/114 is undocumented. The docs, pricing, and README pages are all blank beyond a wallet-connect prompt.
Warnings
- —No documentation available — docs, API, pricing, and README pages all show only 'Connect wallet' with no content.
- —No OpenAPI or schema describing request parameters or response format for this endpoint.
- —The specific functionality of /api/v1/accounts/114 ('Premium API Access') is not explained anywhere in the crawled material.
- —Cannot verify what data or service this endpoint actually provides.
Citations
- —All endpoints priced at $0.02 per request with no API keys, rate limits, or minimumshttps://lowpaymentfee.com
- —Platform offers endpoints across Data & Analytics, AI & ML, Finance & Web3, and Infrastructure categorieshttps://lowpaymentfee.com
- —x402 challenge returns maxAmountRequired of 20000 base units of USDC (0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913) on Base networkhttps://lowpaymentfee.com/api/v1/accounts/114
- —Payment scheme is 'exact' with 300-second timeout, response MIME type application/jsonhttps://lowpaymentfee.com/api/v1/accounts/114