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Internal Transaction History
x402
Internal Transaction History is a paid API for AI agents from www.x402financialdata.com, paid per call via x402, $0.01/call, status unknown (last checked 2026-09-13).
Returns recent internal Ethereum transactions (value transfers triggered by contract calls, such as swaps, withdrawals, and contract creations) for a given wallet or contract address via Etherscan V2 API.
Price / call$0.01
Success—
StatusUnknown
How this service works
Recent internal transactions (value transfers triggered by a contract call -- swaps, withdrawals, contract creations) for a wallet or contract address on Ethereum, from Etherscan's V2 API. These never show up in a normal txlist but often carry the actual fund movement. Supports optional limit (default 25, max 100). $0.01/call.
Output
A list of up to 100 internal Ethereum transactions for the specified address, each including details such as the calling contract, from/to addresses, transferred ETH value, function call type (call, delegatecall, create, etc.), gas used, and block/timestamp context. These are value transfers triggered by contract execution that do not appear in the standard external transaction list.
Example use cases
DeFi wallet fund flow audit
“Show me the last 100 internal transactions for Ethereum address 0xA0b86991c6218b36c1d19D4a2e9Eb0cE3606eB48 — I need to see all the swaps and contract-triggered ETH transfers that don't appear in the normal transaction history.”
Smart contract withdrawal tracing
“Trace the internal transactions for contract 0x7a250d5630B4cF539739dF2C5dAcb4c659F2488D on Ethereum so I can see where funds were sent via contract calls, not just top-level transactions.”
Suspicious wallet activity investigation
“Fetch the 25 most recent internal transactions for wallet 0x3f5CE5FBFe3E9af3971dD833D26bA9b5C936f0bE on Ethereum — I'm trying to understand if there are any hidden fund movements triggered by contract interactions.”
Technical details
Endpoint
GEThttps://www.x402financialdata.com/internal-transactions/:addressWhen to prefer
Use this endpoint when you need to see the actual fund movements triggered by smart contract execution for an Ethereum address — swaps, withdrawals, and contract creations that are invisible in a normal transaction list. It is essential for DeFi activity analysis, contract auditing, and tracing where ETH actually moved as a result of a contract call. Prefer this over a standard transaction list when investigating DeFi protocols, contract interactions, or unexplained balance changes.
Side effects
- Invalid or malformed Ethereum address returns an error
- Address with no internal transactions returns an empty list
- Limit parameter exceeding 100 may be rejected or capped
- Chain parameter other than 'eth' is not supported and will return an error
- Etherscan API downtime or rate limiting may cause failures
- Payment of $0.01 USDC not included or rejected causes 402 response
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| inputrequired | object | |
| output | object |
Tags
x402
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