Check account balance via x402 micropayment on Base network for $0.02 per request.
What it does
This endpoint at lowpaymentfee.com returns account balance information for a specific account (ID 175) via an x402-gated API call. Payment is settled in USDC on the Base network using the x402 "exact" scheme. The cost per request is $0.02 (20,000 base units of USDC with 6 decimals).
The provider, lowpaymentfee.com, operates a broader platform offering multiple API categories including data & analytics, AI & machine learning (sentiment analysis, summarization, classification, embeddings), finance & Web3 (price feeds, exchange rates, token quotes, gas estimates), and infrastructure utilities (geocoding, validation, conversion, generation). All endpoints are priced at $0.02 per request with no API keys, no rate limits, and no minimum commitments required.
This specific endpoint (`/api/v1/accounts/175/balance`) is labeled "Premium API Access" and accepts POST requests. The response MIME type is `application/json`. Documentation beyond the landing page is extremely sparse — the docs, API, pricing, and README pages all render only a "Connect wallet" prompt with no additional technical detail. There is no OpenAPI schema, no request/response examples, and no description of what fields the balance response contains. The endpoint is confirmed live via a valid 402 challenge.
Capabilities
Use cases
- —Querying account balance data with per-request USDC micropayments
- —Integrating pay-per-call balance lookups into agent workflows
- —Accessing financial account information without API key registration
Fit
Best for
- —Agents that can settle x402 payments in USDC on Base
- —Developers wanting zero-signup, pay-per-use account balance queries
- —Micropayment-native workflows requiring no subscription or API key
Not for
- —Users needing detailed API documentation or response schema before integrating
- —High-volume batch queries where per-request pricing may add up
- —Anyone without a Base-compatible USDC wallet
Quick start
curl -X POST https://lowpaymentfee.com/api/v1/accounts/175/balance \
-H "Content-Type: application/json" \
-H "X-PAYMENT: <x402-payment-header>"Endpoint
Quality
The endpoint is confirmed live with a valid 402 challenge and clear pricing ($0.02 USDC on Base). However, there is no OpenAPI schema, no request/response examples, and all documentation pages beyond the landing page are empty (just 'Connect wallet'). The purpose of this specific endpoint (account 175 balance) is vague and undocumented.
Warnings
- —No OpenAPI or request/response schema available — input and output formats are unknown
- —All documentation pages (docs, API, pricing, README) are effectively empty
- —The specific meaning of 'account 175 balance' is undocumented — unclear what data is returned
- —No examples of successful responses exist in the crawled material
Citations
- —Endpoint returns 402 with x402 challenge, confirming it is livehttps://lowpaymentfee.com/api/v1/accounts/175/balance
- —Price is $0.02 per request (maxAmountRequired 20000 base units USDC, 6 decimals)https://lowpaymentfee.com/api/v1/accounts/175/balance
- —Payment settled in USDC on Base network to address 0x1A2B13E97f5F837C8F9FA1F95a1484B7C70d85F3https://lowpaymentfee.com/api/v1/accounts/175/balance
- —Platform advertises $0.02/request, no API keys, no rate limits, instant accesshttps://lowpaymentfee.com
- —Platform offers APIs across data/analytics, AI/ML, finance/Web3, and infrastructure categorieshttps://lowpaymentfee.com