x402-payable API suite on Base: analytics, AI, finance, and utility endpoints at $0.02/request.
What it does
lowpaymentfee.com offers a collection of pay-per-call API endpoints accessible via the x402 payment protocol on the Base network. The specific endpoint at `/api/v1/generate/resource/160` is listed under "Premium API Access" and accepts POST requests, settling payments in USDC (asset 0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913) on Base. The maximum amount required per call is 20,000 base units of USDC (6 decimals), which equals $0.02 USD. No API keys or rate limits are advertised; access is granted instantly upon valid x402 payment.
The broader platform advertises endpoints across four categories: Data & Analytics (metrics, reports, data export, insights), AI & Machine Learning (sentiment analysis, text summarization, classification, embeddings), Finance & Web3 (price feeds, exchange rates, token quotes, gas estimates), and Infrastructure/Utilities (geocoding, validation, conversion, generation). All endpoints are listed at the same $0.02/request price point.
Documentation is extremely sparse — the /docs, /pricing, /api, and /README pages all returned only a "Connect wallet" prompt with no further content. There is no OpenAPI spec, no request/response schema documentation, and no usage examples available. The specific functionality behind the `/api/v1/generate/resource/160` path (labeled "Premium API Access") is unclear and cannot be determined from the available material. The endpoint is confirmed live via a valid 402 challenge response.
Capabilities
Use cases
- —Programmatic access to utility/generation endpoints without API key management
- —Agent-driven workflows that need instant pay-per-call access on Base
- —Integrating low-cost API calls settled in USDC via x402 protocol
Fit
Best for
- —Developers wanting zero-signup, pay-as-you-go API access
- —AI agents with x402-compatible wallets on Base
- —Projects needing cheap per-request pricing without subscriptions
Not for
- —Users who need detailed API documentation or guaranteed SLAs
- —Applications requiring non-crypto payment methods
- —High-volume batch processing where per-request pricing may add up
Quick start
curl -X POST https://lowpaymentfee.com/api/v1/generate/resource/160 \
-H "Content-Type: application/json" \
-H "X-PAYMENT: <x402-payment-token>" \
-d '{}'Endpoint
Quality
The endpoint is confirmed live with a valid x402 402 challenge, and pricing is clear ($0.02 USDC on Base). However, there is no documentation, no OpenAPI spec, no request/response schema, and no examples. The actual functionality of this specific resource path is unknown. The docs, pricing, and README pages are all empty beyond a wallet-connect prompt.
Warnings
- —No documentation available — /docs, /pricing, /api, and /README pages all return only 'Connect wallet' with no content
- —No OpenAPI or schema definition found for any endpoint
- —The specific functionality of /api/v1/generate/resource/160 ('Premium API Access') is undocumented and unclear
- —No request body schema or response format is documented anywhere
- —The broad range of advertised capabilities (AI, analytics, finance, utilities) cannot be verified
Citations
- —The endpoint returns a valid x402 challenge with maxAmountRequired of 20000 base units of USDC on Basehttps://lowpaymentfee.com/api/v1/generate/resource/160
- —All endpoints are priced at $0.02/request with no API keys, no rate limits, and instant access on Base networkhttps://lowpaymentfee.com
- —The platform advertises endpoints across Data & Analytics, AI & ML, Finance & Web3, and Infrastructure categorieshttps://lowpaymentfee.com
- —USDC asset address is 0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913 (Base network USDC with 6 decimals)https://lowpaymentfee.com/api/v1/generate/resource/160