# MCP tool reference

1 callable tools.

Use tools/call at https://mcp.schedulerzero.com/mcp with the exact tool name and arguments below. The /tools/ paths in this view are documentation identifiers, not HTTP endpoints. Request execution is disabled for this reference.

Inputs are shown for personal API keys (bound) and for OAuth/delegated agents. Output schemas describe MCP structuredContent: native objects pass through; arrays, scalars and null use a data wrapper. Text content retains the native JSON result.

[Connect a client](/mcp/connect) · [Authentication and authorization](/authentication) · [Generated auth guide](/auth.md) · [Download tool catalog](/mcp-catalog.json) · [Agent documentation](/llms.txt)

## delete_inboxes

Disconnects selected inboxes and removes stored credentials while retaining inbox, message, send, warmup and diagnostic history; campaign-attached inboxes are skipped with per-item outcomes.

When asked to remove inboxes from the workspace.

For moving inboxes — use manage_inbox_settings.

Obtain the user's explicit authorization before invoking a write or destructive action. This is a client interaction requirement, not a server-issued approval token.

Scopes: inbox:delete

Risk: destructive; confirmation: explicit; idempotency: required.

### Input schema (personal API key)

```json
{
  "type": "object",
  "properties": {
    "workspaceId": {
      "type": "string",
      "pattern": "^([0-9a-fA-F]{8}-[0-9a-fA-F]{4}-[1-8][0-9a-fA-F]{3}-[89abAB][0-9a-fA-F]{3}-[0-9a-fA-F]{12}|00000000-0000-0000-0000-000000000000|[fF]{8}-[fF]{4}-[fF]{4}-[fF]{4}-[fF]{12})$",
      "format": "uuid"
    },
    "inboxIds": {
      "type": "array",
      "items": {
        "type": "string",
        "pattern": "^([0-9a-fA-F]{8}-[0-9a-fA-F]{4}-[1-8][0-9a-fA-F]{3}-[89abAB][0-9a-fA-F]{3}-[0-9a-fA-F]{12}|00000000-0000-0000-0000-000000000000|[fF]{8}-[fF]{4}-[fF]{4}-[fF]{4}-[fF]{12})$",
        "format": "uuid"
      }
    }
  },
  "required": [
    "workspaceId",
    "inboxIds"
  ],
  "patternProperties": {
    "^(?!(?:workspaceId|inboxIds)$)[\\s\\S]*$": false
  },
  "additionalProperties": true,
  "propertyNames": {
    "type": "string",
    "enum": [
      "workspaceId",
      "inboxIds"
    ]
  }
}
```

### Input schema (OAuth / delegated agent)

```json
{
  "type": "object",
  "properties": {
    "workspaceId": {
      "type": "string",
      "pattern": "^([0-9a-fA-F]{8}-[0-9a-fA-F]{4}-[1-8][0-9a-fA-F]{3}-[89abAB][0-9a-fA-F]{3}-[0-9a-fA-F]{12}|00000000-0000-0000-0000-000000000000|[fF]{8}-[fF]{4}-[fF]{4}-[fF]{4}-[fF]{12})$",
      "format": "uuid"
    },
    "inboxIds": {
      "type": "array",
      "items": {
        "type": "string",
        "pattern": "^([0-9a-fA-F]{8}-[0-9a-fA-F]{4}-[1-8][0-9a-fA-F]{3}-[89abAB][0-9a-fA-F]{3}-[0-9a-fA-F]{12}|00000000-0000-0000-0000-000000000000|[fF]{8}-[fF]{4}-[fF]{4}-[fF]{4}-[fF]{12})$",
        "format": "uuid"
      }
    }
  },
  "required": [
    "workspaceId",
    "inboxIds"
  ],
  "patternProperties": {
    "^(?!(?:workspaceId|inboxIds)$)[\\s\\S]*$": false
  },
  "additionalProperties": true,
  "propertyNames": {
    "type": "string",
    "enum": [
      "workspaceId",
      "inboxIds"
    ]
  }
}
```

### Output schema (structuredContent)

```json
{
  "type": "object",
  "properties": {
    "outcomes": {
      "type": "array",
      "items": {
        "type": "object",
        "properties": {
          "inboxId": {
            "type": "string",
            "pattern": "^([0-9a-fA-F]{8}-[0-9a-fA-F]{4}-[1-8][0-9a-fA-F]{3}-[89abAB][0-9a-fA-F]{3}-[0-9a-fA-F]{12}|00000000-0000-0000-0000-000000000000|[fF]{8}-[fF]{4}-[fF]{4}-[fF]{4}-[fF]{12})$",
            "format": "uuid"
          },
          "status": {
            "type": "string",
            "enum": [
              "updated",
              "skipped",
              "failed"
            ]
          },
          "reason": {
            "anyOf": [
              {
                "$ref": "#/$defs/ShortText"
              },
              {
                "type": "null"
              }
            ]
          }
        },
        "required": [
          "inboxId",
          "status",
          "reason"
        ],
        "patternProperties": {
          "^(?!(?:inboxId|status|reason)$)[\\s\\S]*$": false
        },
        "additionalProperties": true,
        "propertyNames": {
          "type": "string",
          "enum": [
            "inboxId",
            "status",
            "reason"
          ]
        }
      }
    }
  },
  "required": [
    "outcomes"
  ],
  "patternProperties": {
    "^(?!(?:outcomes)$)[\\s\\S]*$": false
  },
  "additionalProperties": true,
  "propertyNames": {
    "anyOf": [
      {
        "type": "string",
        "enum": [
          "outcomes"
        ]
      }
    ]
  },
  "$defs": {
    "ShortText": {
      "type": "string",
      "minLength": 1,
      "maxLength": 256
    }
  }
}
```

### Underlying API operations

- `inboxBulk.remove`: `POST /v1/workspaces/:workspaceId/inboxes/bulk/delete`