x402-gated premium API access on Base, pay-per-request with USDC.
What it does
This endpoint at lowpaymentfee.com provides "Premium API Access" behind an x402 payment challenge. The specific resource path (/api/v1/generate/resource/144) does not clearly map to any of the named API categories listed on the provider's landing page (Data & Analytics, AI & ML, Finance & Web3, Infrastructure), so its exact functionality is unclear. The endpoint accepts HTTP POST requests and returns application/json responses.
Payment is handled via the x402 protocol on the Base network using USDC (contract 0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913). The maximum amount required per request is 20,000 units in the token's smallest denomination. The provider's landing page advertises a flat $0.02 per request across all listed endpoints with no API keys, no rate limits, and instant access. However, this specific resource (resource/144) is not among the endpoints listed on the homepage, so pricing may differ.
Documentation is extremely sparse. The /docs, /api, /pricing, and /README pages all render only a "Connect wallet" prompt with no substantive content. There is no OpenAPI spec, no request/response schema documentation, and no usage examples available. Without knowing what input this endpoint expects or what output it produces, integration requires experimentation or direct contact with the provider.
Capabilities
Use cases
- —Accessing a pay-per-request JSON API without needing API keys or subscriptions
- —Making programmatic calls to a gated resource using x402 USDC payments on Base
- —Agent-driven API consumption with on-chain micropayments
Fit
Best for
- —Developers experimenting with x402 payment protocol integrations
- —Agents that can settle USDC payments on Base L2
- —Use cases requiring keyless, pay-as-you-go API access
Not for
- —Users who need well-documented APIs with clear request/response schemas
- —Production workloads requiring SLA guarantees or support
- —Users without a Base-compatible USDC wallet
Quick start
curl -X POST https://lowpaymentfee.com/api/v1/generate/resource/144 \
-H "Content-Type: application/json" \
-H "X-PAYMENT: <x402-payment-token>" \
-d '{}'Endpoint
Quality
The endpoint is live (returns a valid x402 402 challenge), but there is no documentation, no OpenAPI spec, no request/response schema, and the specific resource/144 path is not listed among the provider's advertised endpoints. Effectively a stub listing with minimal actionable information.
Warnings
- —No documentation available — /docs, /pricing, /api, and /README pages all show only 'Connect wallet' with no content.
- —The specific resource path /api/v1/generate/resource/144 is not listed among the provider's advertised API endpoints; its purpose is unknown.
- —No request or response schema is documented or discoverable.
- —No OpenAPI specification found.
- —Provider site appears to be a generic multi-category API platform; actual backend functionality for this resource is unverified.
Citations
- —The endpoint returns a valid x402 challenge with status 402 on POST, accepting USDC on Base network with maxAmountRequired of 20000.https://lowpaymentfee.com/api/v1/generate/resource/144
- —The provider advertises $0.02 per request, no API keys, no rate limits, instant access, on the Base network.https://lowpaymentfee.com
- —USDC asset contract is 0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913 and payTo address is 0x1A2B13E97f5F837C8F9FA1F95a1484B7C70d85F3.https://lowpaymentfee.com/api/v1/generate/resource/144
- —Documentation pages (/docs, /api, /pricing, /README) render only a 'Connect wallet' prompt with no substantive content.https://lowpaymentfee.com/docs