Check ZEC wallet balances via x402 micropayment on Base for $0.02 per request.
What it does
This endpoint at lowpaymentfee.com returns Zcash (ZEC) wallet balance information, 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). No API keys or rate limits are required — callers simply attach an X-PAYMENT header with a valid x402 payment proof to access the data.
The provider, lowpaymentfee.com, offers a broad catalog of pay-per-call APIs spanning data analytics, AI/ML inference, finance/Web3 data, and utility services, all priced uniformly at $0.02 per request. This specific endpoint (`/api/v1/wallet/ZEC/balance`) falls under the finance/Web3 category. The x402 challenge specifies the "exact" payment scheme, settling in USDC (contract 0x8335…2913) on Base, with a 300-second payment timeout.
Documentation beyond the landing page is extremely sparse — the /docs, /pricing, /api, and /README pages all render only a "Connect wallet" prompt with no substantive content. There is no OpenAPI spec, no request/response schema, and no usage examples available from the crawl. The actual response format for a successful balance query is unknown and must be inferred. Callers should expect a JSON response containing a ZEC balance value, but the exact shape is unconfirmed.
Capabilities
Use cases
- —Checking the balance of a Zcash wallet address programmatically
- —Integrating ZEC balance data into portfolio tracking dashboards
- —Automated monitoring of ZEC wallet balances for alerting or accounting
Fit
Best for
- —Developers needing on-demand ZEC balance lookups without API key management
- —Agents or bots that can settle x402 micropayments on Base
- —Low-volume, pay-as-you-go crypto balance queries
Not for
- —High-frequency trading requiring sub-second latency and bulk queries
- —Users who need detailed ZEC transaction history or shielded address support
- —Anyone unable to settle USDC payments on the Base network
Quick start
curl -X POST https://lowpaymentfee.com/api/v1/wallet/ZEC/balance \
-H "Content-Type: application/json" \
-H "X-PAYMENT: <x402-payment-proof>" \
-d '{"address": "t1exampleZcashAddress..."}'Example
Request
{
"address": "t1KstBMLVgcfFNMxyRNWREdKuMWKNKmeLna"
}Endpoint
Quality
The endpoint is live (402 challenge captured) and pricing is clear ($0.02 USDC on Base), but there is no documentation, no OpenAPI schema, no response examples, and no confirmation of the request format. The docs pages are empty. The listing is largely inferred.
Warnings
- —No OpenAPI or schema documentation available — request and response formats are entirely inferred.
- —All documentation pages (/docs, /pricing, /api, /README) return only a 'Connect wallet' prompt with no content.
- —The actual data source for ZEC balances is unknown — it is unclear whether this queries a full node, a block explorer, or a third-party API.
- —Response schema is unconfirmed; the example_response_json is null because no successful response was observed.
Citations
- —The endpoint returns a 402 challenge with x402Version 1, requiring USDC payment on Base networkhttps://lowpaymentfee.com/api/v1/wallet/ZEC/balance
- —maxAmountRequired is 20000 base units of USDC (contract 0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913), which equals $0.02https://lowpaymentfee.com/api/v1/wallet/ZEC/balance
- —The provider advertises $0.02 per request with no API keys, no rate limits, and instant access on Base networkhttps://lowpaymentfee.com
- —The provider lists finance/Web3 endpoints including price feeds, exchange rates, token quotes, and gas estimateshttps://lowpaymentfee.com