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VKPSessionKeyManager.createSession() Transaction Preparer
x402
VKPSessionKeyManager.createSession() Transaction Preparer is a paid API for AI agents from theloopbreaker.com, paid per call via x402, $0.050000/call, status unknown (last checked 2026-09-15).
Prepares an unsigned transaction to create a scoped, time-bounded session key with spending caps and a contract allowlist via VKPSessionKeyManager.createSession()
Price / call$0.050000
Success—
StatusUnknown
How this service works
Tx-prepare for VKPSessionKeyManager.createSession() — create a scoped, time-bounded session key with spending caps and a contract allowlist. Returns unsigned transaction; caller signs in wallet.
Output
Returns an unsigned transaction payload that the caller signs locally in their wallet to create a scoped, time-bounded session key with the specified spending caps and contract allowlist on-chain via VKPSessionKeyManager.createSession()
Example use cases
Delegate restricted agent access for trading
“Set up a session key for my trading bot that lasts 7 days, limits it to spend maximum 5000 USDC per transaction, and only lets it interact with the Uniswap V3Router and AavePoolV3 contracts — I'll sign the transaction in my wallet.”
Create time-limited key for automated payments
“I need a session key for my payment processor that expires in 30 days, caps total spending at 50000 USDC, and can only touch the USDC token contract and PaymentSplitterV2 — prepare the unsigned transaction for me to sign.”
Grant scoped permissions to AI portfolio manager
“Create a session key for my portfolio management agent that's valid for 90 days, limits each transaction to 2000 USDC, and restricts it to only the CurveStableSwap and LidoStaking contracts — I need the unsigned tx ready to sign.”
Technical details
Endpoint
POSThttps://theloopbreaker.com/api/x402/actions/create-session-keyWhen to prefer
Use this endpoint when you need to delegate a restricted, time-limited session key to an AI agent or automated process, enforcing spending caps and limiting contract interaction to a specific allowlist. Prefer this over generic key management when you need fine-grained on-chain permission scoping within the Vaultfire Protocol ecosystem.
Side effects
- Invalid or missing wallet address returns 400 Bad Request
- Malformed contract allowlist addresses returns validation error
- Spending cap exceeds protocol maximum returns constraint error
- Expiry time in the past or too far in the future returns parameter error
- x402 payment header missing or insufficient USDC balance returns 402 Payment Required
- Unsupported chain ID returns 400 or 422 error
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| inputrequired | object | |
| output | object |
Tags
x402
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