Check IOTA wallet balances via x402 micropayment on Base for $0.02 per request.
What it does
This endpoint at lowpaymentfee.com returns IOTA wallet balance data, accessible through the x402 payment protocol. It is part of a broader suite of pay-per-call APIs offered by the same provider, spanning data analytics, AI/ML inference, finance, crypto, and utility services. All endpoints on the platform share a uniform $0.02-per-request pricing model settled in USDC on the Base network.
The specific endpoint `/api/v1/wallet/IOTA/balance` accepts POST requests and returns JSON. Payment is handled via the x402 `exact` scheme: callers attach an `X-PAYMENT` header with a signed USDC payment of up to 20,000 base units (i.e., $0.02, since USDC uses 6 decimals) to the provider's address on Base. No API keys or accounts are required — access is granted per-request upon valid payment. The provider advertises no rate limits.
Documentation is extremely sparse. The crawled docs, API, pricing, and README pages all rendered 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 provider. The endpoint is confirmed live (returns a proper 402 challenge), but the actual response format and accepted request parameters are unknown.
Capabilities
Use cases
- —Querying IOTA wallet balances programmatically without needing an API key
- —Integrating IOTA balance checks into agent workflows that support x402 payments
- —Building dashboards or bots that monitor IOTA holdings
Fit
Best for
- —Agents or apps that already support x402 payment protocol
- —Low-volume, on-demand IOTA balance lookups
- —Developers who want keyless API access with per-call crypto payments
Not for
- —High-volume bulk balance queries where $0.02/request adds up quickly
- —Users who need detailed IOTA transaction history or advanced ledger data
- —Anyone without a Base-network USDC wallet or x402-compatible client
Quick start
curl -X POST https://lowpaymentfee.com/api/v1/wallet/IOTA/balance \
-H "Content-Type: application/json" \
-H "X-PAYMENT: <x402-signed-payment-header>"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 OpenAPI spec, no request/response schema, no documentation beyond a wallet-connect prompt, and no examples. The actual behavior of the endpoint is entirely unknown beyond its URL path suggesting IOTA balance data.
Warnings
- —No documentation available — docs, API, pricing, and README pages all show only a 'Connect wallet' prompt
- —No request or response schema provided; request body format and response structure are unknown
- —No OpenAPI or machine-readable spec found
- —Endpoint functionality is inferred solely from the URL path; actual capabilities are unverified
Citations
- —The endpoint returns a 402 challenge with x402Version 1, exact scheme, USDC on Base, maxAmountRequired 20000 base unitshttps://lowpaymentfee.com/api/v1/wallet/IOTA/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
- —USDC asset address 0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913 on Base networkhttps://lowpaymentfee.com/api/v1/wallet/IOTA/balance