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/35` is one of many endpoints offered by the provider, which hosts a broad catalog spanning data & analytics, AI & machine learning, finance & Web3, and infrastructure utilities — all priced at $0.02 per request.
The endpoint accepts POST requests and returns JSON. Payment is settled on the Base network using USDC (contract 0x8335…2913) with an exact-scheme x402 challenge. The max amount required is 20,000 base units, which at 6 decimals equals $0.02 USD per call. No API keys or rate limits are advertised; access is instant once payment is included in the X-PAYMENT header.
The specific functionality behind `/api/v1/accounts/35` is not documented beyond the label "Premium API Access." The provider's landing page lists other endpoints (metrics, reports, sentiment analysis, summarization, classification, embeddings, price feeds, exchange rates, geocoding, etc.) but does not describe what the accounts endpoint returns. Documentation pages (/docs, /pricing, /README) all render only a "Connect wallet" prompt with no further content. Because of this, the exact input/output schema and use case for this particular endpoint remain unclear.
Capabilities
Use cases
- —Accessing a premium API resource with per-call USDC micropayments on Base
- —Agent-driven API consumption without pre-registration or API keys
- —Programmatic account data retrieval (inferred from path)
Fit
Best for
- —Developers wanting keyless, pay-per-use API access
- —AI agents that can settle x402 payments on Base
- —Users who prefer crypto micropayments over subscription billing
Not for
- —Users who need detailed documentation or OpenAPI schemas before integrating
- —Anyone without a Base-compatible USDC wallet
- —High-volume consumers who would benefit from bulk pricing or subscriptions
Quick start
curl -X POST https://lowpaymentfee.com/api/v1/accounts/35 \
-H "Content-Type: application/json" \
-H "X-PAYMENT: <x402-payment-token>"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 request/response, and the purpose of /api/v1/accounts/35 is undescribed. All doc pages return only 'Connect wallet' with no content.
Warnings
- —The specific functionality of /api/v1/accounts/35 is not documented anywhere in the crawled material.
- —All documentation pages (/docs, /pricing, /README, /api) render only a 'Connect wallet' prompt with no useful content.
- —No OpenAPI spec or input/output schema is available — integration requires trial and error.
- —The provider lists many endpoints on its landing page but none match this specific accounts path, suggesting it may be a generic or placeholder resource.
Citations
- —The endpoint returns a 402 challenge with maxAmountRequired of 20000 base units in USDC on Base networkhttps://lowpaymentfee.com/api/v1/accounts/35
- —All listed 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 on Base is 0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913https://lowpaymentfee.com/api/v1/accounts/35