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/147` is not individually described in the provider's documentation, but the site hosts a broad catalog of API endpoints spanning data & analytics, AI & machine learning, finance & Web3, and infrastructure utilities — all priced at $0.02 per request and payable in USDC on the Base network.
The x402 challenge confirms the endpoint is live and accepts POST requests. Payment is settled on-chain using USDC (contract 0x8335…2913 on Base) with a maximum amount of 20,000 base units, which equals $0.02 (USDC uses 6 decimals). No API keys are required; callers pay per request by attaching an X-PAYMENT header. The provider advertises no rate limits and instant access.
Note that the specific functionality behind `/api/v1/wire/147` is not documented on the provider's site — the crawled pages only list endpoints under `/api/v1/analytics/`, `/api/v2/ai/`, `/api/v1/finance/`, `/api/v1/crypto/`, and `/api/v1/utils/` paths. The "wire/147" path may be an internal or unlisted endpoint. Without further documentation or an OpenAPI schema, the exact input/output behavior of this particular endpoint cannot be confirmed.
Capabilities
Use cases
- —Programmatic access to a pay-per-call API without needing API keys or subscriptions
- —Agent-driven workflows that settle per-request payments in USDC on Base
- —Accessing premium data or utility services with on-chain micropayments
Fit
Best for
- —Developers wanting keyless, pay-as-you-go API access
- —AI agents with x402-compatible payment capabilities
- —Users who prefer on-chain USDC settlement over traditional billing
Not for
- —Users who need detailed documentation or OpenAPI specs before integrating
- —High-volume callers who want bulk pricing or subscription discounts
- —Anyone without a Base-compatible USDC wallet
Quick start
curl -X POST https://lowpaymentfee.com/api/v1/wire/147 \
-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 /api/v1/wire/147 path is not documented anywhere on the provider's site. No OpenAPI schema, no input/output examples, and docs/pricing/API pages all render only a 'Connect wallet' prompt with no useful content. The actual functionality of this endpoint is unknown.
Warnings
- —The path /api/v1/wire/147 is not listed among the provider's documented endpoints — its functionality is unknown
- —No OpenAPI schema or request/response examples are available
- —Documentation pages (/docs, /api, /pricing, /README) all return only a 'Connect wallet' prompt with no substantive content
- —The exact behavior and output of this endpoint cannot be verified without making a paid request
Citations
- —The provider lists APIs across data & analytics, AI/ML, finance/Web3, and infrastructure categories, all priced at $0.02/requesthttps://lowpaymentfee.com
- —No API keys, no rate limits, instant access, Base networkhttps://lowpaymentfee.com
- —x402 challenge returns 402 with maxAmountRequired 20000 in USDC (6 decimals = $0.02) on Basehttps://lowpaymentfee.com/api/v1/wire/147