x402-gated premium API access on Base, paid per-call 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 lowpaymentfee.com platform, which hosts a variety of API categories including Data & Analytics, AI & Machine Learning, Finance & Web3, and Infrastructure utilities. All endpoints on the platform are pay-per-request with no API keys, no rate limits, and settlement on the Base network using USDC.
The specific endpoint `/api/v1/stripe/subscriptions/117` is labeled "Premium API Access" and costs $0.02 per request (20,000 base units of USDC with 6 decimals). It accepts POST requests and returns JSON. Payment is made via the x402 exact scheme: the caller includes an X-PAYMENT header with a signed payment to the specified wallet address on Base. The x402 challenge confirms the endpoint is live and accepting payments.
Notably, the endpoint path references "stripe/subscriptions," which suggests it may relate to Stripe subscription management or integration, but no documentation or schema details are available to confirm the actual functionality. The crawled docs, API, pricing, and README pages all returned only a "Connect wallet" prompt with no substantive content. Without further documentation, the exact input parameters and response format remain unknown.
Capabilities
Use cases
- —Programmatic access to a premium API service with per-call USDC micropayments
- —Agent-driven API consumption without API key provisioning
- —Exploring x402 payment protocol integration patterns
Fit
Best for
- —Developers experimenting with x402 payment-gated APIs
- —Agents that can sign USDC payments on Base for per-call access
- —Users who want keyless, pay-as-you-go API access
Not for
- —Users needing detailed API documentation or schemas before integrating
- —Applications requiring free or fiat-only payment methods
- —High-volume use cases where per-call crypto payments add unacceptable latency
Quick start
curl -X POST https://lowpaymentfee.com/api/v1/stripe/subscriptions/117 \
-H "Content-Type: application/json" \
-H "X-PAYMENT: <signed-x402-payment-header>"Endpoint
Quality
The endpoint is live (402 challenge confirmed) and pricing is clear ($0.02/request in USDC on Base), but there is no documentation, no input/output schema, and no explanation of what "Premium API Access" actually does. The docs, API, pricing, and README pages are all empty beyond a wallet-connect prompt. This is effectively a stub listing.
Warnings
- —No documentation available — all doc pages return only 'Connect wallet' with no content
- —Actual functionality of this endpoint is unknown; the path suggests Stripe subscription management but nothing confirms this
- —No input or output schema provided
- —No example requests or responses available
Citations
- —The endpoint returns a 402 x402 challenge with maxAmountRequired of 20000 base units of USDC on Basehttps://lowpaymentfee.com/api/v1/stripe/subscriptions/117
- —The platform advertises $0.02/request pricing with no API keys, no rate limits, and instant access on Base networkhttps://lowpaymentfee.com
- —USDC asset address 0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913 on Base networkhttps://lowpaymentfee.com/api/v1/stripe/subscriptions/117