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 resource path `/api/v1/wire/126` is not explicitly documented on the provider's landing page, but the site hosts a broad catalog of pay-per-request APIs spanning data & analytics, AI & machine learning, finance & Web3, and infrastructure utilities — all priced at $0.02 per request and settled in USDC on the Base network.
The x402 challenge confirms the endpoint is live and accepts POST requests. Payment is in USDC (contract 0x8335…2913 on Base) with a maxAmountRequired of 20,000 base units, which equals $0.02 (USDC uses 6 decimals). There are no API keys, no rate limits, and no subscription commitments — each call is paid individually via the X-PAYMENT header. The response MIME type is application/json.
Note that the exact functionality behind `/api/v1/wire/126` is not documented on the crawled pages. The provider's site lists endpoints for metrics, reports, sentiment analysis, text summarization, classification, embeddings, price feeds, exchange rates, geocoding, validation, conversion, and generation — but this specific wire endpoint is not among them. It may be a generic or internal route. Without further documentation, the precise input/output schema is unknown.
Capabilities
Use cases
- —Programmatic access to paid API services without subscription or API key management
- —Agent-driven workflows that need on-demand, per-call payment settlement on Base
- —Testing x402 payment protocol integrations with a low-cost endpoint
Fit
Best for
- —Developers exploring x402 pay-per-call patterns
- —AI agents that need keyless, instant API access
- —Low-volume or bursty workloads where subscription pricing is wasteful
Not for
- —Users who need detailed documentation or guaranteed SLAs before integrating
- —High-volume use cases where per-call pricing at $0.02 may add up quickly
- —Anyone without a Base-compatible USDC wallet
Quick start
curl -X POST https://lowpaymentfee.com/api/v1/wire/126 \
-H "Content-Type: application/json" \
-H "X-PAYMENT: <x402-payment-token>" \
-d '{}'Endpoint
Quality
The endpoint is live (402 challenge confirmed) and pricing is clear ($0.02 USDC on Base), but the specific functionality of /api/v1/wire/126 is undocumented. No input/output schema, no examples, and the docs/pricing/README pages all returned only a 'Connect wallet' stub with no useful content.
Warnings
- —The specific endpoint /api/v1/wire/126 is not listed among the provider's documented APIs — its exact functionality is unknown.
- —Documentation pages (/docs, /pricing, /README, /api) returned no meaningful content beyond 'Connect wallet'.
- —No OpenAPI spec, input schema, or response examples are available.
- —The description 'Premium API Access' is generic and does not clarify what this endpoint does.
Citations
- —The provider lists APIs across data & analytics, AI & ML, finance & Web3, and infrastructure, all priced at $0.02/requesthttps://lowpaymentfee.com
- —Pricing is $0.02 per request with no API keys, no rate limits, instant access, on Base networkhttps://lowpaymentfee.com
- —x402 challenge returns maxAmountRequired of 20000 base units in USDC (0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913) on Basehttps://lowpaymentfee.com/api/v1/wire/126