Pay-per-call premium API access on Base network via x402 protocol at $0.02/request in USDC.
What it does
This endpoint at lowpaymentfee.com provides "Premium API Access" via the x402 payment protocol. It is one of many endpoints offered by the platform, which spans categories including Data & Analytics, AI & Machine Learning, Finance & Web3, and Infrastructure utilities. Each request costs $0.02 in USDC on the Base network, with no API keys, no rate limits, and no commitments required.
The specific endpoint `/api/v1/wire/148` is listed generically as "Premium API Access" without further documentation on what data or service it returns. The x402 challenge confirms it is live, accepts POST requests, and charges a maximum of 20,000 base units of USDC (0.02 USD) per call, settling to address 0x1A2B13E97f5F837C8F9FA1F95a1484B7C70d85F3 on Base. The platform advertises instant access with no signup friction — callers simply attach an X-PAYMENT header to authenticate payment.
Documentation is extremely sparse. The docs, API, pricing, and README pages all render only a "Connect wallet" prompt with no additional technical detail. There is no OpenAPI spec, no request/response schema, and no example payloads available. The exact functionality behind this particular wire endpoint (148) is unclear from the available material.
Capabilities
Use cases
- —Accessing premium data or services without subscription or API key management
- —Making one-off paid API calls settled instantly on Base L2
- —Integrating pay-per-use endpoints into autonomous agent workflows
Fit
Best for
- —Developers wanting frictionless pay-per-call API access
- —AI agents that can settle x402 payments autonomously
- —Users who prefer crypto micropayments over traditional billing
Not for
- —Users needing detailed documentation or guaranteed SLAs
- —Anyone without USDC on Base network
- —High-volume consumers who need bulk pricing or rate guarantees
Quick start
curl -X POST https://lowpaymentfee.com/api/v1/wire/148 \
-H "Content-Type: application/json" \
-H "X-PAYMENT: <x402_payment_token>"Endpoint
Quality
The endpoint is confirmed live via a valid 402 challenge, but there is no documentation, no request/response schema, no examples, and the purpose of this specific endpoint (/api/v1/wire/148) is entirely unclear. The platform's docs pages are empty beyond a wallet connect prompt.
Warnings
- —No documentation available — docs/pricing/README pages only show 'Connect wallet'
- —No OpenAPI spec or request/response schema provided
- —The specific functionality of /api/v1/wire/148 ('Premium API Access') is undefined in available material
- —Cannot verify what data or service is actually returned upon successful payment
Citations
- —Endpoint returns 402 with x402 challenge requiring 20000 base units of USDC on Basehttps://lowpaymentfee.com/api/v1/wire/148
- —Platform advertises $0.02/request pricing with no API keys, no rate limits, instant access on Base networkhttps://lowpaymentfee.com
- —USDC asset contract on Base: 0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913https://lowpaymentfee.com/api/v1/wire/148