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Tereno Uniswap V4 Hook Guard
x402
Tereno Uniswap V4 Hook Guard is a paid API for AI agents from www.tereno.xyz, paid per call via x402, $0.54/call, status unknown (last checked 2026-09-14).
Inspects Uniswap V4 pool hook permission flags and verifies contract deployment safety before swap execution
Price / call$0.54
Success—
StatusUnknown
How this service works
Is this Uniswap V4 pool and hook safe to interact with? Inspect hook permission flags (dynamic fee, callbacks, delta modification) and verify contract deployment before swap execution.
Output
Returns a safety assessment of the Uniswap V4 pool hook, including decoded hook permission flags (dynamic fee enabled, which before/after callbacks are active, delta modification capability), confirmation of whether the hook contract is actually deployed on-chain, and an overall verdict on whether the pool is safe to interact with.
Example use cases
Pre-swap hook safety check
“I'm about to swap on a Uniswap V4 pool — can you verify the hook at 0xDeAd...BeeF is safe? The pool is currency0 0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913, currency1 0x4200000000000000000000000000000000000006, poolManager 0x38EB8B22Df3Ae7fb21e92881151B365Df14ba967, tick spacing 10, and fee 500.”
Dynamic fee hook permission audit
“This Uniswap V4 pool has a dynamic fee set — check the hook at 0x1111...2222 with currency0 0x4200000000000000000000000000000000000006, currency1 0x50c5725949A6F0c72E6C4a641F24049A917DB0Cb, poolManager 0x38EB8B22Df3Ae7fb21e92881151B365Df14ba967, tick spacing 60, and fee 8388608 and tell me which callbacks it has enabled.”
New pool hook deployment verification
“A new V4 pool just launched with a hook at 0xFeed...Face — can you confirm the hook contract is actually deployed and inspect its permission flags? Pool details: currency0 0x940181a94A35A4569E4529A3CDfB74e38FD98631, currency1 0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913, poolManager 0x38EB8B22Df3Ae7fb21e92881151B365Df14ba967, tick spacing 200, fee 10000.”
Technical details
Endpoint
POSThttps://www.tereno.xyz/api/v1/capabilities/uniswap.v4.hook.guard/invokeWhen to prefer
Use this endpoint when an AI agent or DeFi workflow needs to programmatically verify the safety of a Uniswap V4 pool hook before executing a swap, especially when interacting with unfamiliar or newly deployed pools. Prefer this over generic contract scanners when you need Uniswap V4-specific hook flag decoding (dynamic fees, before/after swap callbacks, delta modifications) combined with deployment verification in a single call. Ideal for automated trading bots, swap aggregators, and DeFi safety layers that need a fast, structured safety verdict rather than a manual audit.
Side effects
- Hook address does not match expected Uniswap V4 hook address encoding pattern — permissions may be misread
- Hook contract address is not deployed on-chain — returns deployment verification failure
- Invalid Ethereum address format for hooks, currency0, currency1, or poolManager — returns 400 validation error
- PoolManager address is incorrect or not a valid Uniswap V4 PoolManager — analysis may be unreliable
- Fee value out of 24-bit range (>16777215) — returns validation error
- Tick spacing below minimum (less than 1) — returns validation error
- Network congestion or RPC failure causing inability to verify on-chain contract state
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| fee | integer | Fee tier or dynamic fee flag (24-bit uint). |
| hooks | string | Hook contract address (or 0x0 for none). |
| currency0 | string | First token address in the pool. |
| currency1 | string | Second token address in the pool. |
| poolManager | string | Uniswap V4 PoolManager address. |
| tickSpacing | integer | Pool tick spacing. |
Tags
x402
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