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. The specific endpoint `/api/v1/wire/136` is one of many endpoints offered by this provider, which spans categories including Data & Analytics, AI & Machine Learning, Finance & Web3, and Infrastructure utilities.
The endpoint accepts POST requests and is settled on the Base network using USDC (contract 0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913). The maximum amount required per call is 20,000 base units of USDC (6 decimals), which equals $0.02 per request. The provider advertises no API keys, no rate limits, and instant access — payment is the only authentication mechanism.
However, the specific functionality behind `/api/v1/wire/136` is not documented on the provider's site. The landing page lists various named endpoints (metrics, reports, sentiment analysis, summarization, etc.) but this particular wire endpoint is not among them. Without further documentation or an OpenAPI schema, the exact input/output behavior of this endpoint cannot be confirmed. The docs, pricing, and README pages all render only a "Connect wallet" prompt with no additional technical content.
Capabilities
Use cases
- —Accessing premium API 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 zero-commitment pay-per-call API access
- —AI agents that can settle x402 payments autonomously
- —Users who prefer crypto-native micropayments over traditional billing
Not for
- —Users needing detailed API documentation or OpenAPI specs before integration
- —High-volume consumers who would benefit from bulk pricing or subscriptions
- —Developers who cannot transact in USDC on Base network
Quick start
curl -X POST https://lowpaymentfee.com/api/v1/wire/136 \
-H "Content-Type: application/json" \
-H "X-PAYMENT: <x402-payment-token>" \
-d '{}'Endpoint
Quality
The endpoint is live (402 challenge confirmed) and pricing is clear ($0.02 USDC on Base), but there is no documentation, no OpenAPI schema, no example requests/responses, and the specific function of /api/v1/wire/136 is unknown. The docs pages are empty beyond a wallet connect prompt.
Warnings
- —The specific functionality of /api/v1/wire/136 is undocumented — it does not appear in the provider's listed endpoints
- —No OpenAPI schema, no request/response examples available
- —All documentation pages (docs, pricing, README) render only 'Connect wallet' with no technical content
- —Cannot verify what data or service this endpoint actually returns
Citations
- —Endpoint returns 402 with x402 challenge requiring 20000 base units of USDC on Base networkhttps://lowpaymentfee.com/api/v1/wire/136
- —Provider advertises $0.02/request pricing with no API keys, no rate limits, and instant accesshttps://lowpaymentfee.com
- —USDC asset contract is 0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913 on Basehttps://lowpaymentfee.com/api/v1/wire/136