x402-payable API suite on Base: analytics, AI, finance, and utility endpoints at $0.02/request.
What it does
lowpaymentfee.com hosts a collection of x402-protocol pay-per-call API endpoints settled in USDC on the Base network. The specific resource at `/api/v1/generate/resource/118` is listed as "Premium API Access" and accepts POST requests. Payment is handled via the x402 exact-payment scheme — callers attach an X-PAYMENT header with a USDC payment on Base, and the endpoint returns its result as application/json.
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 priced at $0.02 per request with no API keys, no rate limits, and no minimum commitments required.
The specific resource probed (resource/118) advertises a maxAmountRequired of 20,000 base units of USDC (which has 6 decimals), equating to $0.02 per call. The payment is sent to address 0x1A2B13E97f5F837C8F9FA1F95a1484B7C70d85F3 on Base. No OpenAPI schema, detailed documentation, or example request/response bodies were found in the crawl — the docs, pricing, and API pages all returned only a "Connect wallet" prompt with no substantive content.
Capabilities
Use cases
- —Programmatic access to utility/generation endpoints without API key management
- —Agent-driven workflows that need on-demand paid API calls settled in USDC on Base
- —Accessing analytics, AI inference, finance data, or utility services via a single pay-per-request platform
Fit
Best for
- —Developers or agents who want keyless, pay-per-call API access on Base
- —Use cases requiring low-cost ($0.02) individual API calls with no subscription
- —x402-compatible agent wallets looking for discoverable paid endpoints
Not for
- —Users who need detailed API documentation or OpenAPI schemas before integrating
- —High-volume consumers who would benefit from bulk pricing or subscriptions
- —Anyone without a Base-network USDC wallet or x402-compatible client
Quick start
curl -X POST https://lowpaymentfee.com/api/v1/generate/resource/118 \
-H "Content-Type: application/json" \
-H "X-PAYMENT: <x402-payment-token>"Endpoint
Quality
The endpoint is live and returns a valid x402 402 challenge with clear pricing ($0.02 USDC on Base). However, there is no OpenAPI schema, no request/response examples, and no meaningful documentation — the docs/pricing/API pages all render only a wallet-connect prompt. The purpose of resource/118 specifically is unknown beyond the generic label "Premium API Access."
Warnings
- —No OpenAPI or JSON schema available for request or response bodies
- —Documentation pages (docs, pricing, API, README) all return only a 'Connect wallet' prompt with no substantive content
- —The specific function of /api/v1/generate/resource/118 is unclear — 'Premium API Access' is a generic label
- —Cannot verify what data or service this endpoint actually returns without making a paid call
Citations
- —The endpoint returns a 402 x402 challenge with maxAmountRequired of 20000 base units of USDC on Basehttps://lowpaymentfee.com/api/v1/generate/resource/118
- —USDC asset contract on Base is 0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913https://lowpaymentfee.com/api/v1/generate/resource/118
- —All endpoints priced at $0.02/request with no API keys, no rate limits, instant access on Base networkhttps://lowpaymentfee.com
- —Platform offers endpoints in Data & Analytics, AI & ML, Finance & Web3, and Infrastructure categorieshttps://lowpaymentfee.com