x402-gated premium API access on Base, paid per-call in USDC at $0.02/request.
What it does
This endpoint at lowpaymentfee.com provides "Premium API Access" behind an x402 paywall, settling payments in USDC on the Base network. The specific endpoint `/api/v1/stripe/charges/96` is one of many offered by the provider, which hosts a broad catalog spanning data & analytics, AI & machine learning (sentiment analysis, summarization, classification, embeddings), finance & Web3 (price feeds, exchange rates, token quotes, gas estimates), and infrastructure utilities (geocoding, validation, conversion, generation). All endpoints share a uniform $0.02-per-request pricing model with no API keys, no rate limits, and no minimum commitments.
The x402 challenge confirms the endpoint is live, accepting POST requests and requiring an X-PAYMENT header. Payment is made in USDC (contract 0x8335…2913 on Base) to address 0x1A2B…85F3, with a maxAmountRequired of 20000 base units (i.e., $0.02 given USDC's 6 decimals). The timeout is 300 seconds. The endpoint returns application/json responses.
Documentation is extremely thin — 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 documentation, and no examples of what the endpoint actually returns. The name "stripe/charges/96" suggests it may relate to Stripe charge data or a proxy for payment processing, but this is speculative. Without documentation, the actual functionality of this specific endpoint remains unclear.
Capabilities
Use cases
- —Programmatic access to premium API services without traditional API key management
- —Agent-driven workflows that need pay-per-call access settled in USDC on Base
- —Accessing data, AI, finance, or utility endpoints with no subscription commitment
Fit
Best for
- —Developers or agents wanting frictionless per-request billing in crypto
- —Use cases requiring no rate limits and instant access without signup
- —x402-compatible agent toolchains on the Base network
Not for
- —Users who need detailed API documentation or response schema guarantees before integrating
- —High-volume use cases where per-request pricing at $0.02 may be expensive compared to bulk plans
- —Anyone requiring fiat-only payment rails
Quick start
curl -X POST https://lowpaymentfee.com/api/v1/stripe/charges/96 \
-H "Content-Type: application/json" \
-H "X-PAYMENT: <x402-payment-token>"Endpoint
Quality
The endpoint is confirmed live via a valid x402 402 challenge, and pricing is clear ($0.02/request in USDC on Base). However, there is no OpenAPI spec, no documentation beyond a landing page listing, no request/response examples, and the actual functionality of this specific endpoint (stripe/charges/96) is undocumented and unclear. The docs, pricing, and README pages are all empty beyond a wallet connect prompt.
Warnings
- —No OpenAPI or schema documentation available for this endpoint
- —The specific purpose of /api/v1/stripe/charges/96 is undocumented — the name suggests Stripe charge data but this is unverified
- —All documentation pages (/docs, /pricing, /api, /README) render only 'Connect wallet' with no usable content
- —No request body schema or response schema is documented anywhere
- —The provider lists many endpoints but none have detailed documentation
Citations
- —The endpoint returns a 402 x402 challenge with maxAmountRequired of 20000 base units in USDC on Basehttps://lowpaymentfee.com/api/v1/stripe/charges/96
- —All endpoints are priced at $0.02 per request with no API keys, no rate limits, and instant accesshttps://lowpaymentfee.com
- —The provider offers endpoints across Data & Analytics, AI & ML, Finance & Web3, and Infrastructure categorieshttps://lowpaymentfee.com
- —USDC asset contract is 0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913 on Base networkhttps://lowpaymentfee.com/api/v1/stripe/charges/96