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/178` appears to be one of many endpoints offered by the platform, which advertises a broad catalog spanning data & analytics, AI & machine learning, finance & Web3, and infrastructure utilities — all priced at $0.02 per request.
The endpoint is live and returns a valid x402 challenge on POST. Payment is settled in USDC (contract 0x8335…2913) on the Base network using the "exact" scheme. The max amount required is 20,000 base units, which at 6 decimals for USDC equals $0.02. No API keys or rate limits are advertised; access is granted per-call upon payment. The timeout window is 300 seconds.
Documentation is extremely sparse — the docs, pricing, API, and README pages all render only a "Connect wallet" prompt with no further content. There is no OpenAPI spec, no request/response schema, and no description of what the `/api/v1/accounts/178` endpoint actually returns. The platform's landing page lists many endpoints but provides no detail on input parameters or response formats for any of them. The specific purpose of the `accounts/178` resource is unclear from available material.
Capabilities
Use cases
- —Accessing a premium API endpoint without needing API keys or subscriptions
- —Making one-off paid API calls settled in USDC on Base
- —Agent-driven programmatic access to paid resources via x402 protocol
Fit
Best for
- —Developers who want keyless, pay-per-use API access
- —AI agents that can settle x402 payments autonomously
- —Users already holding USDC on Base who want frictionless API calls
Not for
- —Users who need detailed documentation or OpenAPI specs before integrating
- —Anyone requiring free or subscription-based access models
- —Use cases needing guaranteed SLAs or support
Quick start
curl -X POST https://lowpaymentfee.com/api/v1/accounts/178 \
-H "X-PAYMENT: <x402-payment-token>" \
-H "Content-Type: application/json"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 schema, and no explanation of what the /api/v1/accounts/178 endpoint actually does. The docs and other pages are empty beyond a wallet-connect prompt. This is effectively a stub listing.
Warnings
- —No documentation available — docs, pricing, API, and README pages all show only 'Connect wallet'
- —No OpenAPI or schema provided; request parameters and response format are unknown
- —The specific purpose of /api/v1/accounts/178 is not described anywhere in the crawled material
- —The platform lists many endpoints but none have documented input/output schemas
Citations
- —The endpoint returns a valid x402 challenge with maxAmountRequired of 20000 base units in USDC on Basehttps://lowpaymentfee.com/api/v1/accounts/178
- —All endpoints are priced at $0.02 per request with no API keys, no rate limits, and instant accesshttps://lowpaymentfee.com
- —USDC asset contract is 0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913 on Base networkhttps://lowpaymentfee.com/api/v1/accounts/178