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TraceFast Block Withdrawals
x402
TraceFast Block Withdrawals is a paid API for AI agents from mpp.tracefast.xyz, paid per call via x402, $0.01/call, status unknown (last checked 2026-10-12).
Returns all validator withdrawals processed in a specific Ethereum block, with index, validator, recipient, and amount, in withdrawal-index order.
Price / call$0.01
Success—
StatusUnknown
How this service works
TraceFast live Ethereum data: the validator withdrawals paid out in one block — index, validator, recipient and amount — in withdrawal-index order. A block holds at most 16. Optionally narrowed to one validator or one recipient. Path number: Block height. Query: limit, cursor, validatorIndex, address (see docs). Docs: https://docs.tracefast.xyz/api/block-withdrawals.md
Output
A paginated, ordered list of up to 16 validator withdrawal records per block, each containing the withdrawal index, validator index, recipient Ethereum address, and withdrawal amount in Gwei. Results are ordered by withdrawal index and can be filtered by validator index or recipient address.
Example use cases
Staking rewards audit for a validator
“Pull all the withdrawals from Ethereum block 20200000 for validator index 450 — I need the recipient address and the exact amount paid out.”
Recipient sweep across a block
“List every validator withdrawal in block 19800000 that went to address 0xd8dA6BF26964aF9D7eEd9e03E53415D37aA96045 so I can verify our staking pool received its expected payouts.”
Block-level withdrawal census
“Give me the complete list of all validator withdrawals processed in Ethereum block 20750000, in withdrawal-index order, so I can reconcile our staking ledger.”
Technical details
Endpoint
GEThttps://mpp.tracefast.xyz/api/v1/chains/1/blocks/:number/withdrawals?utm_source=zero.xyzWhen to prefer
Choose this endpoint when you need exact withdrawal data for a specific Ethereum block, especially when you want to audit staking payouts, reconcile validator rewards, or trace a specific validator's or recipient's withdrawal activity at a precise block height. Prefer this over general balance or transaction endpoints when the query is specifically about consensus-layer validator withdrawals rather than EVM transactions.
Side effects
- Block number not found or not yet finalized — returns 404 or empty result
- Invalid block number format — returns 400 bad request
- Validator index or address filter matches no withdrawals in the block — returns empty list
- Rate limiting or payment failure (x402) — returns 402 payment required
- Cursor value is invalid or expired — returns 400 or pagination error
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| input | — |
Tags
x402
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