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Kette Bridge Transfer Tracker
x402
Kette Bridge Transfer Tracker is a paid API for AI agents from kette.halowerk.com, paid per call via x402, $0.004/call, status unknown (last checked 2026-09-14).
Reads an on-chain transaction hash, identifies the bridge protocol used, and reports the true amount leaving the wallet, fees, elapsed time relative to that bridge's expected duration, and the next required action if the transfer is stuck.
Price / call$0.004
Success—
StatusUnknown
How this service works
Reads the source transaction on chain, identifies the bridge from the contracts it touched, and reports what actually left the wallet. overdue is measured against the usual duration of THAT bridge, and the comparison value is part of the answer - not against a fixed number. For bridges that need a manual claim, next_step says which step is missing and who has to trigger it; that is the real answer for a transfer that looks stuck. amount_delta shows what was deducted on the way, so a smaller arri
Output
Returns the identified bridge protocol, the actual amount deducted from the wallet, the amount_delta (fee or slippage), elapsed time since the source transaction, the typical expected duration for that specific bridge, an overdue flag, and a next_step field indicating whether a manual claim is required and who must trigger it.
Example use cases
Diagnose stuck cross-chain transfer
“I sent ETH from Optimism to Base two hours ago and nothing has arrived — transaction hash is 0xdeadbeef... Can you figure out which bridge it went through, whether that's longer than normal for that bridge, and whether there's a manual claim I need to trigger?”
Reconcile unexpected fee deduction
“I bridged 1000 USDC from Ethereum to Polygon but only received 997 on the other side. Transaction is 0xfeedcafe... — can you tell me exactly how much was deducted and by which bridge, so I can account for it?”
Confirm bridge completion and no action needed
“I moved some tokens cross-chain yesterday with tx 0x1234abcd... and I think they arrived but I'm not 100% sure. Can you confirm the bridge transfer is complete, which protocol handled it, and whether there are any outstanding steps I still need to take?”
Technical details
Endpoint
POSThttps://kette.halowerk.com/bridge/trackWhen to prefer
Use this endpoint when a user has a specific cross-chain bridge transaction hash and needs to know: which bridge was used, whether it is overdue relative to that bridge's own normal duration, what fees were deducted, or what manual step (e.g. claim) is blocking completion. Prefer this over generic transaction decoders when the primary concern is bridge-specific timing, fee reconciliation, or stuck-transfer diagnosis.
Side effects
- Transaction hash not found on the specified chain — returns error indicating unknown tx
- Transaction did not touch a recognized bridge contract — bridge cannot be identified
- RPC unavailability for the source chain causing lookup failure
- Bridge protocol is new or obscure and not yet in the known-contracts index
- Source chain not supported by the endpoint
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| bridge | string | Optional hint which bridge was used. Only used when detection fails. |
| tx_hash | string | Transaction hash of the deposit, 0x followed by 64 hex characters. |
| source_chain | string | Chain the deposit was made on. |
Tags
x402
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