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DopamineDesk Whale Alerts – Large ERC-20 Transfer Monitor
x402
DopamineDesk Whale Alerts – Large ERC-20 Transfer Monitor is a paid API for AI agents from ai-data-marketplace-1042299154756.us-central1.run.app, paid per call via x402, $0.005/call, status unknown (last checked 2026-09-13).
Scans recent blocks on Base, Ethereum, or Arbitrum and returns large ERC-20 token transfers (whale movements) above a configurable minimum amount.
Price / call$0.005
Success—
StatusUnknown
How this service works
Read recent large ERC-20 transfers directly from Base, Ethereum, or Arbitrum by scanning Transfer logs over the most recent blocks and filtering by a minimum token amount. Defaults to USDC on Base. Public RPC providers cap the scan window, so this covers the most recent blocks rather than a long history, and it does not label exchange wallets.
Output
Returns a JSON array of alert objects, each containing the transaction hash, sender address or label, recipient address or label, token amount (whole units), estimated USD value, and Unix timestamp of the transfer. Only transfers meeting or exceeding the configured minimum amount threshold are included.
Example use cases
DeFi whale movement early warning
“Check if anyone has moved more than 1 million USDC on Ethereum in the last 10 blocks — I want to see who sent it and who received it.”
Exchange inflow surveillance
“Scan Base for large USDC transfers above 250,000 tokens in the last 5 blocks — I'm trying to see if whale wallets are moving funds to exchanges right now.”
Specific token whale tracking
“Look for any transfers above 100,000 tokens for this ERC-20 contract 0xA0b86991c6218b36c1d19D4a2e9Eb0cE3606eB48 on Arbitrum in the last 3 blocks, limit to 25 results.”
Technical details
Endpoint
GEThttps://ai-data-marketplace-1042299154756.us-central1.run.app/api/v1/whale_alertsWhen to prefer
Choose this endpoint when you need real-time detection of unusually large on-chain token movements (whale alerts) across Base, Ethereum, or Arbitrum, especially for USDC or any specific ERC-20. It is ideal for DeFi risk monitoring, exchange inflow surveillance, and market-impact analysis. Prefer it over generic block explorers when you need structured, agent-ready JSON output with labeled addresses and USD values without building your own RPC queries.
Side effects
- Public RPC block-window cap exceeded — reduce 'blocks' parameter to stay within provider limits
- Invalid chain identifier — must be 'base', 'ethereum', or 'arbitrum'
- No transfers found above threshold — returns empty alerts array, not an error
- Invalid ERC-20 contract address format causes a 400/422 error
- Rate limit or payment failure via x402 returns HTTP 402 if USDC settlement fails
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| inputrequired | object | |
| output | object |
Output
Schema · Response
{
"type": "json",
"example": {
"network": "Base Mainnet",
"success": true,
"transactions": [
"[nested detail omitted from the challenge header; see the full example in /openapi.json]"
],
"min_usd_value": 50000,
"marketplace_metadata": {
"source": "public EVM JSON-RPC ERC-20 Transfer logs",
"billable": true,
"data_mode": "live_source",
"availability": "operational"
}
}
}Tags
x402
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