# undo.agentutil.net Action Reversibility Lookup

> undo.agentutil.net Action Reversibility Lookup is a paid API for AI agents from undo.agentutil.net, paid per call via x402, $0.002/call, status unknown (last checked 2026-09-15).

Checks whether a platform action (e.g. delete, archive, publish) can be undone, returning the reversibility level, recovery window, recovery mechanism, and safer alternatives

## Facts

- Endpoint: POST https://undo.agentutil.net/v1/lookup
- Price: $0.002/call
- Payment: x402
- Status: unknown
- Last checked: 2026-09-15
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/undo-agentutil-net-7249f814
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_z8hM70rq-dNh_wGNwOzh8

Status and success rate cover calls made through Zero and Zero's own probes. Third-party monitors may report differently.

## How to call it through Zero

Zero handles the 402 payment challenge and records the run. With the Zero CLI installed (`npm i -g @zeroxyz/cli`):

```sh
zero fetch --capability undo-agentutil-net-7249f814 -d '<json body>'
```

Example prompt: Before I go ahead with the delete_message action on Gmail for a message resource, can you do a quick reversibility check — is this action undoable, how long is the recovery window, and is there a safer alternative?

## When to prefer this

Use this endpoint as a pre-flight safety gate before any autonomous agent executes a potentially destructive or irreversible action on a SaaS platform (Gmail, Shopify, Stripe, GitHub, Slack, etc.). Prefer this over general documentation search when you specifically need a machine-readable reversibility verdict and recovery window to decide whether to proceed, ask for confirmation, or suggest a safer alternative.

## Known failure modes

- Unknown action/platform/resource combination returns reversibility_level='unknown' with null fields for window/mechanism/alternative
- Missing required fields (action, platform, resource) may result in a 400 error or degraded response
- Payment failure (x402) if USDC balance is insufficient — call is rejected before lookup
- Stale data if platform policies change and the knowledge base is not yet updated

## How this service works

Quick pre-flight check: can this action be undone? Returns reversibility level, recovery window, and the safest alternative for any platform action

## Output

Returns a JSON object containing the reversibility_level (e.g. 'reversible', 'irreversible', 'unknown'), recovery_window (time within which recovery is possible, or null), recovery_mechanism (how to undo, or null), safer_alternative (a lower-risk substitute action, or null), and related agentutil services for further safety checks.

## Example request

```json
{
 "action": "delete_message",
 "platform": "gmail",
 "resource": "message"
}
```

## Request schema (JSON Schema)

```json
{
 "type": "object",
 "properties": {
  "action": {
   "type": "string",
   "description": "Action to lookup"
  },
  "platform": {
   "type": "string",
   "description": "Platform identifier"
  },
  "resource": {
   "type": "string",
   "description": "Resource type"
  }
 }
}
```

## Response schema (JSON Schema)

```json
{
 "type": "object",
 "required": [
  "data",
  "service",
  "request_id",
  "related_services"
 ],
 "properties": {
  "data": {
   "type": "object",
   "required": [
    "action",
    "platform",
    "resource",
    "recovery_window",
    "safer_alternative",
    "recovery_mechanism",
    "reversibility_level"
   ],
   "properties": {
    "action": {
     "type": "string"
    },
    "platform": {
     "type": "string"
    },
    "resource": {
     "type": "string"
    },
    "recovery_window": {
     "type": "null"
    },
    "safer_alternative": {
     "type": "null"
    },
    "recovery_mechanism": {
     "type": "null"
    },
    "reversibility_level": {
     "type": "string"
    }
   }
  },
  "service": {
   "type": "string"
  },
  "request_id": {
   "type": "string"
  },
  "related_services": {
   "type": "array",
   "items": {
    "type": "object",
    "required": [
     "url",
     "name",
     "description"
    ],
    "properties": {
     "url": {
      "type": "string"
     },
     "name": {
      "type": "string"
     },
     "description": {
      "type": "string"
     }
    }
   }
  }
 }
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/undo-agentutil-net-7249f814/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from undo.agentutil.net](https://www.zero.xyz/host/undo.agentutil.net/llms.txt)