# 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)

## manage_attio_outbound

Turn the four outbound Attio writes on or off: automatic lead sync, and call, reply, and send activity notes.

Use only when the customer has asked for Scheduler Zero to write into their Attio. Every toggle defaults off.

Enabling a write is refused until the connection holds the matching Attio write grants — the customer must reconnect Attio, which no agent can do for them. Turning a toggle on changes what lands in a paying customer's CRM from then on; it does not backfill.

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: integration:update

Risk: write; confirmation: explicit; idempotency: supported.

### 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})$",
      "format": "uuid"
    },
    "settings": {
      "type": "object",
      "properties": {
        "pushLeads": {
          "type": "boolean"
        },
        "pushCallNotes": {
          "type": "boolean"
        },
        "pushReplyNotes": {
          "type": "boolean"
        },
        "pushSendNotes": {
          "type": "boolean"
        }
      },
      "patternProperties": {
        "^(?!(?:pushLeads|pushCallNotes|pushReplyNotes|pushSendNotes)$)[\\s\\S]*$": false
      },
      "additionalProperties": true,
      "propertyNames": {
        "type": "string",
        "enum": [
          "pushLeads",
          "pushCallNotes",
          "pushReplyNotes",
          "pushSendNotes"
        ]
      },
      "minProperties": 1,
      "maxProperties": 4
    }
  },
  "required": [
    "workspaceId",
    "settings"
  ],
  "patternProperties": {
    "^(?!(?:workspaceId|settings)$)[\\s\\S]*$": false
  },
  "additionalProperties": true,
  "propertyNames": {
    "type": "string",
    "enum": [
      "workspaceId",
      "settings"
    ]
  }
}
```

### 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})$",
      "format": "uuid"
    },
    "settings": {
      "type": "object",
      "properties": {
        "pushLeads": {
          "type": "boolean"
        },
        "pushCallNotes": {
          "type": "boolean"
        },
        "pushReplyNotes": {
          "type": "boolean"
        },
        "pushSendNotes": {
          "type": "boolean"
        }
      },
      "patternProperties": {
        "^(?!(?:pushLeads|pushCallNotes|pushReplyNotes|pushSendNotes)$)[\\s\\S]*$": false
      },
      "additionalProperties": true,
      "propertyNames": {
        "type": "string",
        "enum": [
          "pushLeads",
          "pushCallNotes",
          "pushReplyNotes",
          "pushSendNotes"
        ]
      },
      "minProperties": 1,
      "maxProperties": 4
    }
  },
  "required": [
    "workspaceId",
    "settings"
  ],
  "patternProperties": {
    "^(?!(?:workspaceId|settings)$)[\\s\\S]*$": false
  },
  "additionalProperties": true,
  "propertyNames": {
    "type": "string",
    "enum": [
      "workspaceId",
      "settings"
    ]
  }
}
```

### Output schema (structuredContent)

```json
{
  "$defs": {
    "AttioOutboundSettings": {
      "type": "object",
      "properties": {
        "pushLeads": {
          "type": "boolean"
        },
        "pushCallNotes": {
          "type": "boolean"
        },
        "pushReplyNotes": {
          "type": "boolean"
        },
        "pushSendNotes": {
          "type": "boolean"
        }
      },
      "required": [
        "pushLeads",
        "pushCallNotes",
        "pushReplyNotes",
        "pushSendNotes"
      ],
      "patternProperties": {
        "^(?!(?:pushLeads|pushCallNotes|pushReplyNotes|pushSendNotes)$)[\\s\\S]*$": false
      },
      "additionalProperties": true,
      "propertyNames": {
        "type": "string",
        "enum": [
          "pushLeads",
          "pushCallNotes",
          "pushReplyNotes",
          "pushSendNotes"
        ]
      }
    },
    "AttioOutboundSettingsResult": {
      "type": "object",
      "properties": {
        "connected": {
          "type": "boolean"
        },
        "settings": {
          "$ref": "#/$defs/AttioOutboundSettings"
        }
      },
      "required": [
        "connected",
        "settings"
      ],
      "patternProperties": {
        "^(?!(?:connected|settings)$)[\\s\\S]*$": false
      },
      "additionalProperties": true,
      "propertyNames": {
        "type": "string",
        "enum": [
          "connected",
          "settings"
        ]
      }
    }
  },
  "type": "object",
  "anyOf": [
    {
      "allOf": [
        {
          "$ref": "#/$defs/AttioOutboundSettingsResult"
        },
        {
          "type": "object"
        }
      ]
    },
    {
      "type": "object",
      "properties": {
        "data": {
          "allOf": [
            {
              "$ref": "#/$defs/AttioOutboundSettingsResult"
            },
            {
              "not": {
                "type": "object"
              }
            }
          ]
        }
      },
      "required": [
        "data"
      ],
      "additionalProperties": false
    }
  ]
}
```

### Underlying API operations

- `attioOutbound.updateSettings`: `PATCH /v1/workspaces/:workspaceId/integrations/attio/outbound-settings`