Check Litecoin wallet balances via x402 micropayment — $0.02 per request on Base.
What it does
This endpoint at lowpaymentfee.com returns Litecoin (LTC) wallet balance data, gated behind an x402 payment challenge. Each request costs $0.02 (20,000 base units of USDC on the Base network, where USDC has 6 decimals). The endpoint accepts POST requests and returns JSON.
The provider, lowpaymentfee.com, offers a broad catalog of pay-per-call APIs spanning data analytics, AI/ML inference, finance/Web3, and infrastructure utilities — all priced at $0.02 per request with no API keys, no rate limits, and no minimum commitments. Payment is settled on-chain via USDC on Base using the x402 protocol (version 1, "exact" scheme). The specific endpoint `/api/v1/wallet/LTC/balance` falls under the Finance & Web3 category and is designed to retrieve balance information for Litecoin wallets.
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 spec, no request/response schema documentation, and no example payloads available. The endpoint is confirmed live (returns a proper 402 challenge), but the lack of documentation makes it difficult to know what request body parameters are expected or what the response structure looks like.
Capabilities
Use cases
- —Querying Litecoin wallet balances programmatically without API key registration
- —Integrating LTC balance checks into agent workflows with automatic micropayment settlement
- —Building portfolio trackers or dashboards that need on-demand LTC balance lookups
Fit
Best for
- —Agents or bots needing quick, keyless Litecoin balance queries
- —Developers who prefer pay-per-call over subscription billing
- —x402-compatible clients that can settle USDC on Base
Not for
- —High-volume balance monitoring where $0.02/request adds up quickly
- —Users who need detailed LTC transaction history beyond simple balances
- —Anyone without a Base-compatible USDC wallet for payment
Quick start
curl -X POST https://lowpaymentfee.com/api/v1/wallet/LTC/balance \
-H "Content-Type: application/json" \
-H "X-PAYMENT: <x402-payment-header>" \
-d '{"address": "LTC_WALLET_ADDRESS"}'Example
Request
{
"address": "LQTpS3VaYTjCr4s98r4VBnGnkuXsZMwkdR"
}Endpoint
Quality
The endpoint is confirmed live with a valid x402 402 challenge, and pricing is clear ($0.02/request in USDC on Base). However, there is no OpenAPI spec, no request/response schema, no documentation, and no examples — the docs pages are all blank 'Connect wallet' stubs. The request and response JSON examples are inferred/guessed.
Warnings
- —No documentation available — /docs, /api, /pricing, and /README all show only 'Connect wallet' with no content
- —No OpenAPI or schema definition; request body parameters are unknown and inferred
- —Response format is completely undocumented; example_response_json is null
- —The provider lists many diverse API categories (AI, analytics, finance, utils) all at $0.02 — actual functionality behind each endpoint is unverified
Citations
- —Endpoint returns a 402 x402 challenge with maxAmountRequired of 20000 base units of USDC on Basehttps://lowpaymentfee.com/api/v1/wallet/LTC/balance
- —All APIs priced at $0.02 per request with no API keys, no rate limits, and instant access on Base networkhttps://lowpaymentfee.com
- —USDC asset contract on Base: 0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913https://lowpaymentfee.com/api/v1/wallet/LTC/balance