Check LDO token wallet balance via x402 micropayment on Base for $0.02 per request.
What it does
This endpoint at lowpaymentfee.com returns the balance of an LDO (Lido DAO) wallet. It is part of a broader suite of pay-per-call APIs offered by lowpaymentfee.com, which spans 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.
The specific endpoint `/api/v1/wallet/LDO/balance` is a POST endpoint that costs $0.02 per request (20,000 base units of USDC with 6 decimals). No API keys or accounts are required — callers authenticate and pay via the x402 `X-PAYMENT` header. The x402 challenge was confirmed live, returning a 402 with an `exact` payment scheme targeting USDC (contract `0x8335...2913`) on Base. The maximum timeout for payment settlement is 300 seconds.
Documentation on the site 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, and no usage examples available from the crawled material. The endpoint's actual response format and required POST body (if any) are unknown.
Capabilities
Use cases
- —Querying the balance of an LDO token wallet programmatically
- —Integrating LDO balance checks into trading bots or portfolio dashboards
- —Automated monitoring of LDO holdings across wallets
Fit
Best for
- —Agents needing on-demand LDO wallet balance without API key management
- —Micropayment-friendly workflows that pay per call in USDC on Base
- —Quick one-off balance lookups without subscription commitments
Not for
- —High-frequency polling where $0.02 per request adds up quickly
- —Users who need balances for many tokens in a single call (this endpoint is LDO-specific)
- —Anyone without a Base-network USDC wallet to settle x402 payments
Quick start
curl -X POST https://lowpaymentfee.com/api/v1/wallet/LDO/balance \
-H "Content-Type: application/json" \
-H "X-PAYMENT: <x402_payment_token>"Endpoint
Quality
The endpoint is confirmed live via a valid x402 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 landing page listing, and no examples. The actual behavior of this endpoint is largely unknown.
Warnings
- —No OpenAPI or schema documentation available — request body and response format are unknown
- —Docs, API, pricing, and README pages all render only 'Connect wallet' with no technical content
- —The specific endpoint path suggests LDO wallet balance, but no confirmation of what parameters are accepted or what the response looks like
- —This endpoint is part of a broad platform listing many diverse APIs; quality and reliability of individual endpoints is unverified
Citations
- —The endpoint returns a 402 challenge with x402Version 1, accepting USDC on Base network with maxAmountRequired of 20000 base unitshttps://lowpaymentfee.com/api/v1/wallet/LDO/balance
- —All APIs on the platform cost $0.02 per request with no API keys, no rate limits, and instant access on Base networkhttps://lowpaymentfee.com
- —USDC asset contract on Base is 0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913https://lowpaymentfee.com/api/v1/wallet/LDO/balance