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 path `/api/v1/accounts/184` is one of many endpoints offered by the platform, which spans data & analytics, AI & machine learning, finance & Web3, and infrastructure utility categories. All endpoints are priced at $0.02 per request, payable in USDC on the Base network with no API keys, no rate limits, and no minimum commitments required.
The x402 challenge confirms the endpoint is live, accepting POST requests and settling payments in USDC (contract 0x8335…2913 on Base) to address 0x1A2B…85F3. The max amount required is 20,000 base units of USDC (6 decimals), which equals $0.02 per call. The endpoint returns application/json responses. The platform advertises a broad suite of sibling endpoints including sentiment analysis, text summarization, classification, embeddings, price feeds, exchange rates, geocoding, validation, and more — all at the same $0.02 price point.
Documentation is extremely sparse. The docs, API, pricing, and README pages all render only a "Connect wallet" prompt with no additional content. There is no OpenAPI schema, no request/response examples, and no description of what the `/api/v1/accounts/184` endpoint specifically returns. The exact functionality behind this particular path is unclear — it could be an account lookup or a generic resource. Agents should be aware that without documentation, the actual input parameters and response shape are unknown.
Capabilities
Use cases
- —Accessing premium data or account information via a single micropayment per request
- —Integrating pay-as-you-go API calls into agent workflows without managing API keys
- —Testing x402 payment protocol integrations on Base network
Fit
Best for
- —Developers experimenting with x402 pay-per-call protocols
- —Agents needing keyless, on-demand API access settled in USDC on Base
- —Low-volume or sporadic API consumers who prefer per-request billing
Not for
- —Users who need detailed API documentation or well-defined schemas before integrating
- —High-volume consumers who would benefit from bulk pricing or subscription plans
- —Anyone without a Base-network USDC wallet
Quick start
curl -X POST https://lowpaymentfee.com/api/v1/accounts/184 \
-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 schema, no request/response examples, and the specific functionality of /api/v1/accounts/184 is undefined. The docs pages are empty beyond a wallet-connect prompt.
Warnings
- —No documentation available — docs, API, pricing, and README pages all show only 'Connect wallet'
- —No OpenAPI or schema describing request parameters or response format for this endpoint
- —The specific purpose of /api/v1/accounts/184 is unclear — 'Premium API Access' is a generic label
- —No request or response examples available anywhere in crawled content
Citations
- —Endpoint returns 402 with x402 challenge, confirming it is live on Base network with USDChttps://lowpaymentfee.com/api/v1/accounts/184
- —All endpoints priced at $0.02 per request with no API keys, no rate limits, and instant accesshttps://lowpaymentfee.com
- —USDC asset contract on Base is 0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913https://lowpaymentfee.com/api/v1/accounts/184
- —Platform offers endpoints across data & analytics, AI & ML, finance & Web3, and infrastructure categorieshttps://lowpaymentfee.com