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 endpoint `/api/v1/wire/113` is one of many offered by the platform, which hosts a broad catalog of APIs spanning data & analytics, AI & machine learning, finance & Web3, and infrastructure utilities. All endpoints are priced at $0.02 per request, paid in USDC on the Base network with no API keys, rate limits, or commitments required.
The x402 challenge confirms the endpoint is live, accepting POST requests and settling payments in USDC (contract `0x8335...2913` on Base). The maxAmountRequired of 20,000 base units corresponds to $0.02 (USDC uses 6 decimals). The payment scheme is "exact," meaning each request requires a one-time micropayment. The endpoint returns `application/json` responses.
However, the specific functionality behind `/api/v1/wire/113` is not documented — the description is simply "Premium API Access" with no further detail on what data or service it returns. The platform's docs, pricing, and README pages all render only a "Connect wallet" prompt with no substantive documentation. Without knowing what this particular endpoint does, callers should treat it as an opaque JSON API behind a paywall. The broader platform lists endpoints for sentiment analysis, text summarization, geocoding, price feeds, and more, but it is unclear whether `/api/v1/wire/113` maps to any of those.
Capabilities
Use cases
- —Programmatic access to a paid JSON API endpoint without needing API keys or accounts
- —Agent-driven workflows that can settle per-call payments in USDC on Base
- —Testing x402 payment protocol integrations against a live endpoint
Fit
Best for
- —Developers experimenting with x402 micropayment-gated APIs
- —AI agents with Base USDC wallets needing on-demand API access
- —Low-commitment, no-signup API consumption
Not for
- —Users who need clear documentation on what the endpoint returns before paying
- —High-volume use cases where $0.02/request adds up without bulk discounts
- —Anyone without a Base-compatible USDC wallet
Quick start
curl -X POST https://lowpaymentfee.com/api/v1/wire/113 \
-H "Content-Type: application/json" \
-H "X-PAYMENT: <x402-payment-token>"Endpoint
Quality
The endpoint is live and returns a valid x402 challenge, but the actual functionality behind /api/v1/wire/113 is completely undocumented. No OpenAPI spec, no request/response schema, no examples, and no meaningful docs exist — every docs page just shows 'Connect wallet'. The listing is essentially a stub with confirmed pricing and liveness but unknown utility.
Warnings
- —The specific functionality of /api/v1/wire/113 is not documented anywhere — 'Premium API Access' is the only description provided.
- —All documentation pages (docs, pricing, README, api) render only a 'Connect wallet' prompt with no actual content.
- —No OpenAPI spec, request schema, or response schema is available.
- —No example requests or responses can be constructed without knowing the endpoint's purpose.
Citations
- —The endpoint is live and returns a 402 x402 challenge with maxAmountRequired of 20000 base units in USDC on Basehttps://lowpaymentfee.com/api/v1/wire/113
- —All endpoints are priced at $0.02 per request with no API keys, rate limits, or commitmentshttps://lowpaymentfee.com
- —The platform offers APIs across data & analytics, AI & ML, finance & Web3, and infrastructure categorieshttps://lowpaymentfee.com
- —USDC contract on Base is 0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913https://lowpaymentfee.com/api/v1/wire/113