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x402 Chain Intel – Mempool Whale Transaction Scanner
x402
x402 Chain Intel – Mempool Whale Transaction Scanner is a paid API for AI agents from x402-chain-intel.vercel.app, paid per call via x402, $0.2/call, status unknown (last checked 2026-09-14).
Detects and returns large whale transactions currently pending in the blockchain mempool for trading bot intelligence
Price / call$0.2
Success—
StatusUnknown
How this service works
27 paid endpoints for trading bots
Output
Returns a list of large unconfirmed transactions currently sitting in the blockchain mempool, including transaction hashes, sender and receiver wallet addresses, transaction values, token symbols or contract addresses, and mempool position metadata useful for trading bots to act on pre-confirmation signals.
Example use cases
Front-running whale swaps on DEX
“Check the mempool right now for any whale transactions over 1000 ETH heading to Uniswap — I need the tx hashes, wallet addresses, and token pairs so my bot can position before they confirm.”
Detecting large stablecoin outflows
“Scan the current mempool for any pending USDC or USDT transfers above $2 million and return the sender, receiver, and amount — I'm watching for big stablecoin moves that might signal a market event.”
Whale accumulation early warning
“Pull any unconfirmed mempool transactions where a single wallet is buying more than 50 ETH worth of a token right now — give me the contract address, buyer wallet, and value so I can track accumulation patterns before they confirm.”
Technical details
Endpoint
POSThttps://x402-chain-intel.vercel.app/api/mempool/whale-txWhen to prefer
Choose this endpoint when you need real-time pre-confirmation intelligence on large on-chain transactions for algorithmic trading, MEV (miner extractable value) strategies, or whale monitoring dashboards. It is particularly valuable when you need to act before a transaction confirms rather than reading historical on-chain data.
Side effects
- Mempool may be empty or low-activity during off-peak hours, returning no results
- Threshold filters that are too high may yield zero matches
- Network congestion can cause stale or incomplete mempool snapshots
- Missing or invalid filter parameters may return a 400 error
- x402 payment failure (402 response) if USDC balance is insufficient or payment not attached
- Vercel cold-start latency may cause timeouts on first call
Tags
x402
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