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Agent Session Key & Delegate Guard
x402
Agent Session Key & Delegate Guard is a paid API for AI agents from 402.com.tr, paid per call via x402, $0.03/call, status unknown (last checked 2026-10-17).
Pre-execution security audit for ERC-4337 session keys and EIP-7702 delegated signers, returning a GO / OVER_PERMISSIVE / DRAIN_RISK verdict before signing.
Price / call$0.03
Success—
StatusUnknown
How this service works
🆕 Pre-execution security audit for autonomous agent session keys (ERC-4337) and delegated signers (EIP-7702). Evaluates time-locks (perpetual leak vs bounded session), per-tx spend caps, router target allowlisting (Uniswap/Aerodrome vs unbounded execution), and produces an actionable GO / OVER_PERMISSIVE / DRAIN_RISK verdict before signing. Pass signer= (session key address).
Output
Returns a structured security verdict — one of GO, OVER_PERMISSIVE, or DRAIN_RISK — along with a breakdown of the session key's time-lock status (perpetual vs bounded), spend cap evaluation, and router target allowlist coverage (e.g. Uniswap/Aerodrome vs unbounded). Includes actionable recommendations to remediate any identified risks before signing.
Example use cases
Pre-signing audit for DeFi trading agent
“My autonomous DeFi agent is about to sign with session key 0x1234...abcd. Before it does, audit it — the session should expire in 24 hours, spend cap is $200, and allowed targets should be Uniswap and Aerodrome only. Tell me if it's safe to proceed.”
Detecting over-permissive perpetual session key
“Can you check whether the session key 0xDead...Beef on my agent smart account 0xAaaa...1111 is dangerously open? I'm worried it might have no expiry and no spend limits — give me the verdict.”
Compliance gate before agent deployment
“Before I deploy my trading agent fleet, audit the delegate signer 0x9999...CAFE — I want to confirm it has a 48-hour expiry, a $1000 spend cap, and that unbounded execution is blocked. Flag it if it's DRAIN_RISK or OVER_PERMISSIVE.”
Technical details
Endpoint
GEThttps://402.com.tr/api/x402/agent-session-guard?utm_source=zero.xyzWhen to prefer
Use this endpoint when an autonomous agent or smart wallet is about to grant or use an ERC-4337 session key or EIP-7702 delegated signer and you need a pre-execution risk verdict. It is specifically valuable when you need structured GO/OVER_PERMISSIVE/DRAIN_RISK classification rather than a raw on-chain data read — particularly for agents operating with DeFi routers where unbounded execution or missing expiry could lead to fund loss. Prefer this over generic on-chain inspection when you want an opinionated, actionable security ruling rather than raw permission data.
Side effects
- Missing or invalid signer address returns a 400 error
- Unresolvable or non-existent signer address may return an unknown verdict or error
- If allowedTargets contains unrecognized contract addresses, the audit may flag them conservatively
- Optional parameters omitted may result in a more conservative verdict due to lack of constraint data
- Service unavailability or upstream timeout returns a 5xx error
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| inputrequired | object | |
| output | object |
Tags
x402
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