Check 1INCH token wallet balance via x402 micropayment on Base network for $0.02 per request.
What it does
This endpoint at lowpaymentfee.com returns the balance of a 1INCH token wallet. It is part of a broader suite of pay-per-call APIs offered by lowpaymentfee.com, spanning data analytics, AI/ML inference, finance/Web3, and infrastructure utilities. All endpoints on the platform use the x402 payment protocol, settling in USDC on the Base network at $0.02 per request.
The specific endpoint `/api/v1/wallet/1INCH/balance` appears to be a crypto wallet balance lookup for the 1INCH token. The x402 challenge confirms the endpoint is live, accepting POST requests with an exact-scheme payment of 20,000 base units of USDC (0x8335…2913 on Base), which equals $0.02. No API keys or rate limits are advertised; access is granted per-request via the x402 payment header.
Documentation on the site is extremely thin — the docs, API, pricing, and README pages all render only a "Connect wallet" prompt with no additional technical detail. There is no OpenAPI spec, no request/response schema, and no usage examples available from the crawl. The endpoint's behavior and response format must be inferred entirely from its URL path and the platform's generic description.
Capabilities
Use cases
- —Querying the balance of a 1INCH token wallet address programmatically
- —Building portfolio trackers that need on-demand token balance lookups
- —Integrating wallet balance checks into trading bots or DeFi dashboards
Fit
Best for
- —Agents or apps needing quick, keyless crypto balance lookups
- —Pay-per-use access without subscription commitments
- —Developers building on Base who want USDC-settled API calls
Not for
- —Bulk or high-frequency balance polling (no documented rate limits but per-call cost adds up)
- —Users who need detailed transaction history or multi-token batch queries
- —Anyone requiring comprehensive API documentation or SLA guarantees
Quick start
curl -X POST https://lowpaymentfee.com/api/v1/wallet/1INCH/balance \
-H "Content-Type: application/json" \
-H "X-PAYMENT: <x402_payment_token>"Endpoint
Quality
The endpoint is live and returns a valid x402 challenge, but there is zero documentation on request parameters, response schema, or usage examples. The docs pages are empty beyond a wallet-connect prompt. The endpoint's actual functionality is inferred solely from its URL path.
Warnings
- —No OpenAPI spec or request/response schema available
- —All documentation pages (docs, API, pricing, README) render only 'Connect wallet' with no content
- —Request body format and response structure are completely unknown
- —The specific endpoint path (/api/v1/wallet/1INCH/balance) is not listed on the site's landing page among advertised APIs, raising questions about its support status
Citations
- —The endpoint returns a 402 x402 challenge with maxAmountRequired of 20000 base units of USDC on Basehttps://lowpaymentfee.com/api/v1/wallet/1INCH/balance
- —All APIs 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
- —The USDC asset address is 0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913 on Basehttps://lowpaymentfee.com/api/v1/wallet/1INCH/balance