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NO HANDS AI Action Envelope Review
x402
NO HANDS AI Action Envelope Review is a paid API for AI agents from base-agent-preflight.bytoken2023.workers.dev, paid per call via x402, $2.5/call, status unknown (last checked 2026-10-11).
Reviews an action envelope for risk, flags, and compliance before an autonomous agent executes a spend or on-chain action.
Price / call$2.5
Success—
StatusUnknown
How this service works
Machine-payable service intelligence for discovering, verifying, and monitoring identity, risk, authorization, execution-preflight, and evidence APIs before autonomous agents spend.
Output
Returns a JSON object with the network (eip155:8453), product name (nomos-action-envelope-review), and an assessment containing a list of flags, a risk_level (e.g. 'low'), and a numeric risk_score — allowing the calling agent to decide whether to proceed with the action.
Example use cases
Pre-spend safety check for DeFi agent
“My DeFi agent is about to execute a swap — can you review the action envelope with this mandate, approval, decision, and envelope data and tell me the risk score and any flags before it sends the transaction?”
Compliance preflight for autonomous payroll
“Before my payroll agent sends out USDC to contractors, run a risk review on the action envelope I'm giving you — mandate, approval, decision, and envelope — and flag anything that looks off.”
Authorization review for multi-agent workflow
“One of my sub-agents wants to take an on-chain action on Base. Review its action envelope — here's the mandate, approval, decision, and envelope — and give me the risk level so I can decide whether to let it proceed.”
Technical details
Endpoint
POSThttps://base-agent-preflight.bytoken2023.workers.dev/x402/v1/execution/action-envelope/review?utm_source=zero.xyzWhen to prefer
Choose this endpoint when an autonomous agent needs a structured, machine-payable pre-execution compliance and risk review of an action envelope before spending on-chain — especially when the agent operates on Base (eip155:8453) and requires a risk score and flag list rather than a simple binary allow/deny.
Side effects
- Missing required fields (mandate, approval, decision, or envelope) may result in validation errors
- Malformed envelope payloads may return unparseable or high-risk assessments
- Payment failure ($2.5 USDC per call) will block the request under x402 protocol
- Ambiguous or incomplete mandate strings may yield inconclusive risk assessments
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| mandate | string | |
| approval | string | |
| decision | string | |
| envelope | string |
Output
Schema · Response
{
"type": "json",
"example": {
"network": "eip155:8453",
"product": "nomos-action-envelope-review",
"assessment": {
"flags": [],
"risk_level": "low",
"risk_score": 0
}
}
}Tags
x402
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