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/107` 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.
The x402 challenge confirms the endpoint is live and accepts payment on the Base network using USDC (contract 0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913) with the "exact" payment scheme. The maxAmountRequired is 20000 base units, which at 6 decimals equals $0.02 — consistent with the site's advertised pricing. The endpoint accepts HTTP POST requests and returns application/json. No API keys or rate limits are required; access is granted purely through per-call x402 micropayments.
The provider's landing page lists sibling endpoints for metrics, reports, data export, insights, sentiment analysis, text summarization, classification, embeddings, price feeds, exchange rates, token quotes, gas estimates, geocoding, validation, conversion, and generation. However, the specific functionality behind `/api/v1/wire/107` is not documented — it is labeled only as "Premium API Access." Without further documentation or an OpenAPI spec, the exact input/output schema and purpose of this particular endpoint remain unclear.
Capabilities
Use cases
- —Accessing premium data or services with per-call USDC micropayments on Base
- —Agent-driven API consumption without pre-registration or API keys
- —Programmatic pay-as-you-go access to undocumented premium functionality
Fit
Best for
- —Agents or developers who want keyless, pay-per-request API access
- —Users already holding USDC on Base who want frictionless micropayments
- —Exploring x402-compatible endpoints with low per-call cost
Not for
- —Users who need detailed documentation or guaranteed SLAs before calling
- —Anyone requiring free or subscription-based access rather than per-call payment
- —Use cases requiring a known, well-documented input/output contract
Quick start
curl -X POST https://lowpaymentfee.com/api/v1/wire/107 \
-H "Content-Type: application/json" \
-H "X-PAYMENT: <x402-payment-header>" \
-d '{}'Endpoint
Quality
The endpoint is live (402 challenge confirmed) and pricing is clear ($0.02 USDC on Base), but there is no OpenAPI spec, no documentation for this specific path, no input/output schema, and no examples. The exact functionality of /api/v1/wire/107 is unknown — it is effectively a stub listing.
Warnings
- —The specific endpoint /api/v1/wire/107 is not listed or documented on the provider's landing page — its purpose is unknown.
- —No OpenAPI spec, request schema, or response schema is available.
- —Docs, pricing, API, and README pages all render only a 'Connect wallet' prompt with no useful content.
- —The provider site lists many endpoints but provides no technical documentation for any of them.
Citations
- —The site advertises $0.02 per request with no API keys, no rate limits, and instant access on the Base network.https://lowpaymentfee.com
- —The x402 challenge shows maxAmountRequired of 20000 base units of USDC (0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913) on Base, equaling $0.02.https://lowpaymentfee.com/api/v1/wire/107
- —The provider lists sibling endpoints for analytics, AI, finance, and infrastructure utilities.https://lowpaymentfee.com