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Tanod chainpeek Wallet Drain Check
x402
Tanod chainpeek Wallet Drain Check is a paid API for AI agents from tanod.dev, paid per call via x402, $0.002/call, status unknown (last checked 2026-10-14).
Checks whether tokens were pulled out of a wallet by someone other than the wallet owner on Base or Ethereum, returning a drain verdict, nonce evidence, and transaction details.
Price / call$0.002
Success—
StatusUnknown
How this service works
chainpeek (Tanod) wallet drain check: were tokens pulled out in transactions the wallet did not send? Verdict, nonce and evidence, on Base or Ethereum. Use when a wallet's token balance dropped and a…
Output
Returns a drain verdict (drained or not), the wallet nonce evidence used to distinguish owner-sent vs. externally pulled transactions, and a list of suspicious token transfer events with transaction hashes, block numbers, token addresses, amounts, and the address that initiated each transfer.
Example use cases
Post-compromise wallet forensics
“My wallet 0x4f2e...a3c1 on Ethereum just lost all its USDC and I didn't send anything — can you check the last 2000 blocks to see if someone drained it without my authorization?”
Automated DeFi security monitoring
“Before paying out to wallet 0x9d3a...b7f2 on Base, check whether its USDC or USDT balance dropped recently due to an unauthorized drain rather than the owner spending it.”
Incident response after phishing
“A user says they clicked a suspicious link and their USDT disappeared from 0x7c1d...e8a4 on Base — can you look back over the last 500 blocks and tell me if tokens were pulled out without them sending a transaction?”
Technical details
Endpoint
POSThttps://tanod.dev/v1/chain/drain-check?utm_source=zero.xyzWhen to prefer
Use this endpoint when a wallet's token balance has dropped unexpectedly and an agent needs to definitively determine whether the wallet owner initiated the outflow or whether tokens were pulled by an external party — distinguishing a drain/hack from a legitimate self-transfer. Prefer it over generic block explorers when you need a structured, machine-readable verdict with nonce-based evidence rather than raw transaction lists. Best suited for Base or Ethereum chains where USDC and USDT are the primary tokens of concern.
Side effects
- Invalid wallet address format (must be 0x + 40 hex chars)
- Unsupported chain specified (only 'base' or 'ethereum' accepted)
- lookback_blocks out of range (must be 1–2000)
- Token contract address not valid ERC-20 on the specified chain
- RPC timeout or chain node unavailability
- No activity found in lookback window (empty result, not an error)
- Payment failure or insufficient USDC balance for x402 fee
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| chain | string | base or ethereum (the chains with built-in USDC and USDT here). |
| tokens | — | 1 to 5 tokens: USDC, USDT or contract addresses. Default: USDC and USDT. |
| wallet | string | The wallet to check (0x + 40 hex). |
| lookback_blocks | integer | Latest blocks read (1-2,000; default 2,000, about 67 minutes on Base and 6.7 hours on Ethereum). |
Tags
x402
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