x402-gated premium API access on Base, pay $0.02 per request in USDC.
What it does
This endpoint at lowpaymentfee.com provides "Premium API Access" via the x402 payment protocol on the Base network. The specific resource `/api/v1/trades/102` appears to be part of a broader suite of pay-per-call APIs offered by the provider, spanning data & analytics, AI & machine learning, finance & Web3, and infrastructure utilities. All endpoints on the platform are priced at $0.02 per request, settled in USDC (USD Coin) on Base with no API keys, no rate limits, and no commitments required.
The x402 challenge for this particular endpoint advertises a maxAmountRequired of 20,000 base units of USDC (contract 0x8335…2913 on Base). Since USDC uses 6 decimals, this converts to $0.02 per call, consistent with the site's advertised pricing. Payment is made via the x402 "exact" scheme, with a 300-second timeout. The endpoint accepts POST requests and returns application/json.
Note that the specific functionality of `/api/v1/trades/102` is not documented beyond the generic label "Premium API Access." The path suggests it may relate to a specific trade record (ID 102), possibly in the finance/Web3 category, but no request or response schema is provided. The broader site lists many endpoints but the crawled documentation pages (docs, pricing, README) returned only a "Connect wallet" prompt with no additional technical detail. Treat this listing as a stub with confirmed liveness but limited documentation.
Capabilities
Use cases
- —Fetching trade-related data on a per-request payment basis
- —Integrating pay-per-call APIs into agent workflows without API key management
- —Accessing financial or trade records via x402 micropayments
Fit
Best for
- —Agents needing keyless, pay-per-use API access on Base
- —Developers prototyping x402 payment flows
- —Low-volume consumers who want no subscription commitments
Not for
- —High-volume bulk data retrieval where per-request fees add up
- —Users who need detailed API documentation and response schemas before integrating
- —Non-crypto users without access to USDC on Base
Quick start
curl -X POST https://lowpaymentfee.com/api/v1/trades/102 \
-H "Content-Type: application/json" \
-H "X-PAYMENT: <x402-payment-token>"Endpoint
Quality
The endpoint is confirmed live via a valid 402 challenge, and pricing is clear ($0.02 USDC on Base). However, there is no documentation of what /api/v1/trades/102 actually returns, no request/response schema, and the crawled docs pages are empty. This is effectively a stub listing.
Warnings
- —No documentation available for the specific endpoint /api/v1/trades/102 — purpose and response format are unknown
- —All crawled doc/pricing/README pages returned only 'Connect wallet' with no technical content
- —No OpenAPI spec, no request schema, no response schema provided
- —The endpoint path suggests a single trade record (ID 102) but this is unconfirmed
Citations
- —The x402 challenge returns maxAmountRequired of 20000 base units of USDC on Base with a 300-second timeouthttps://lowpaymentfee.com/api/v1/trades/102
- —All endpoints on the platform are priced at $0.02 per request with no API keys, no rate limits, and instant access on Base networkhttps://lowpaymentfee.com
- —USDC contract address on Base is 0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913https://lowpaymentfee.com/api/v1/trades/102