x402-gated premium API access on Base, pay $0.02 per request in USDC.
What it does
This endpoint at lowpaymentfee.com is part of a broader suite of x402-protocol APIs covering data analytics, AI/ML inference, finance/Web3 data, and infrastructure utilities. The specific resource `/api/v1/generate/resource/116` is listed under "Premium API Access" and accepts POST requests gated by an x402 payment challenge. Each call costs $0.02 in USDC on the Base network (maxAmountRequired of 20,000 base units with 6 decimals = $0.02), settled to address 0x1A2B…85F3.
The provider advertises a no-API-key, no-rate-limit, pay-per-use model. The landing page lists roughly 16 endpoints across four categories: Data & Analytics (metrics, reports, export, insights), AI & Machine Learning (sentiment analysis, text summarization, classification, embeddings), Finance & Web3 (price feeds, exchange rates, token quotes, gas estimates), and Infrastructure (geocoding, validation, conversion, generation). All are priced at $0.02 per request.
Documentation is extremely sparse — the /docs, /api, /pricing, and /README pages all render only a "Connect wallet" prompt with no further technical detail. There is no OpenAPI spec, no request/response schema documentation, and no example payloads available. The specific functionality behind resource ID 116 is not described beyond the generic "Premium API Access" label, making it unclear what data or computation this particular endpoint returns. The endpoint is confirmed live (returns a valid x402 402 challenge), but without documentation the actual input parameters and output format remain unknown.
Capabilities
Use cases
- —Programmatic access to a premium API resource with per-call USDC micropayments
- —Agent-driven workflows that need keyless, pay-as-you-go API access on Base
- —Integrating x402-compatible payment flows into automated pipelines
Fit
Best for
- —Developers experimenting with x402 payment protocol integrations
- —Agents that can settle USDC payments on Base L2
- —Low-volume, pay-per-use API consumption without subscription commitments
Not for
- —Users who need detailed API documentation or guaranteed SLAs before integrating
- —High-volume production workloads requiring well-documented schemas and error handling
- —Anyone without a Base-network USDC wallet
Quick start
curl -X POST https://lowpaymentfee.com/api/v1/generate/resource/116 \
-H "Content-Type: application/json" \
-H "X-PAYMENT: <x402-payment-token>"Endpoint
Quality
The endpoint is confirmed live via a valid x402 402 challenge, but there is zero documentation on what this specific resource does, what inputs it accepts, or what it returns. No OpenAPI spec, no examples, and the docs pages are empty. The listing is effectively a stub.
Warnings
- —No documentation available — /docs, /api, /pricing, and /README all return only a 'Connect wallet' prompt with no technical content.
- —The specific functionality of resource/116 ('Premium API Access') is completely undocumented; actual input/output behavior is unknown.
- —No OpenAPI or schema specification is provided by the server.
- —No request or response examples could be sourced.
Citations
- —The endpoint returns a valid x402 challenge with maxAmountRequired of 20000 base units in USDC on Base networkhttps://lowpaymentfee.com/api/v1/generate/resource/116
- —All endpoints are priced at $0.02 per request with no API keys, no rate limits, and instant access on Base networkhttps://lowpaymentfee.com
- —The provider lists 16 endpoints across Data & Analytics, AI & ML, Finance & Web3, and Infrastructure categorieshttps://lowpaymentfee.com
- —Documentation pages (/docs, /api, /pricing, /README) render only a 'Connect wallet' prompthttps://lowpaymentfee.com/docs