# 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_mappings

Shape how Attio records import: save, change, or delete a named field mapping, and refresh the local catalog of Attio lists.

Use when an import needs a mapping that does not exist yet, when the default mapping should change, or when a list the customer just created in Attio is missing from the catalog.

Marking a mapping default clears every other default in the workspace. A list sync replaces the whole catalog in one swap; it never imports anything. None of these write into Attio.

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:create, integration:update, integration:delete

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})$",
      "format": "uuid"
    },
    "action": {
      "type": "string",
      "enum": [
        "create_mapping",
        "update_mapping",
        "delete_mapping",
        "sync_lists"
      ]
    },
    "mappingId": {
      "$ref": "#/$defs/AttioFieldMappingId"
    },
    "create": {
      "type": "object",
      "properties": {
        "name": {
          "$ref": "#/$defs/ShortText"
        },
        "rules": {
          "$ref": "#/$defs/AttioFieldMappingRules"
        },
        "emailStrategy": {
          "type": "string",
          "enum": [
            "first",
            "work",
            "personal",
            "ask"
          ]
        },
        "duplicateBehavior": {
          "type": "string",
          "enum": [
            "skip",
            "update"
          ]
        },
        "isDefault": {
          "type": "boolean"
        }
      },
      "required": [
        "name",
        "rules"
      ],
      "patternProperties": {
        "^(?!(?:name|rules|emailStrategy|duplicateBehavior|isDefault)$)[\\s\\S]*$": false
      },
      "additionalProperties": true,
      "propertyNames": {
        "type": "string",
        "enum": [
          "name",
          "rules",
          "emailStrategy",
          "duplicateBehavior",
          "isDefault"
        ]
      }
    },
    "update": {
      "type": "object",
      "properties": {
        "name": {
          "$ref": "#/$defs/ShortText"
        },
        "rules": {
          "$ref": "#/$defs/AttioFieldMappingRules"
        },
        "emailStrategy": {
          "type": "string",
          "enum": [
            "first",
            "work",
            "personal",
            "ask"
          ]
        },
        "duplicateBehavior": {
          "type": "string",
          "enum": [
            "skip",
            "update"
          ]
        },
        "isDefault": {
          "type": "boolean"
        }
      },
      "patternProperties": {
        "^(?!(?:name|rules|emailStrategy|duplicateBehavior|isDefault)$)[\\s\\S]*$": false
      },
      "additionalProperties": true,
      "propertyNames": {
        "type": "string",
        "enum": [
          "name",
          "rules",
          "emailStrategy",
          "duplicateBehavior",
          "isDefault"
        ]
      },
      "minProperties": 1,
      "maxProperties": 5
    }
  },
  "required": [
    "workspaceId",
    "action"
  ],
  "patternProperties": {
    "^(?!(?:workspaceId|action|mappingId|create|update)$)[\\s\\S]*$": false
  },
  "additionalProperties": true,
  "propertyNames": {
    "type": "string",
    "enum": [
      "workspaceId",
      "action",
      "mappingId",
      "create",
      "update"
    ]
  },
  "$defs": {
    "AttioFieldMappingId": {
      "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"
    },
    "ShortText": {
      "type": "string",
      "minLength": 1,
      "maxLength": 256
    },
    "AttioFieldMappingRules": {
      "type": "object",
      "additionalProperties": true,
      "minProperties": 0,
      "maxProperties": 200
    }
  }
}
```

### 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})$",
      "format": "uuid"
    },
    "action": {
      "type": "string",
      "enum": [
        "create_mapping",
        "update_mapping",
        "delete_mapping",
        "sync_lists"
      ]
    },
    "mappingId": {
      "$ref": "#/$defs/AttioFieldMappingId"
    },
    "create": {
      "type": "object",
      "properties": {
        "name": {
          "$ref": "#/$defs/ShortText"
        },
        "rules": {
          "$ref": "#/$defs/AttioFieldMappingRules"
        },
        "emailStrategy": {
          "type": "string",
          "enum": [
            "first",
            "work",
            "personal",
            "ask"
          ]
        },
        "duplicateBehavior": {
          "type": "string",
          "enum": [
            "skip",
            "update"
          ]
        },
        "isDefault": {
          "type": "boolean"
        }
      },
      "required": [
        "name",
        "rules"
      ],
      "patternProperties": {
        "^(?!(?:name|rules|emailStrategy|duplicateBehavior|isDefault)$)[\\s\\S]*$": false
      },
      "additionalProperties": true,
      "propertyNames": {
        "type": "string",
        "enum": [
          "name",
          "rules",
          "emailStrategy",
          "duplicateBehavior",
          "isDefault"
        ]
      }
    },
    "update": {
      "type": "object",
      "properties": {
        "name": {
          "$ref": "#/$defs/ShortText"
        },
        "rules": {
          "$ref": "#/$defs/AttioFieldMappingRules"
        },
        "emailStrategy": {
          "type": "string",
          "enum": [
            "first",
            "work",
            "personal",
            "ask"
          ]
        },
        "duplicateBehavior": {
          "type": "string",
          "enum": [
            "skip",
            "update"
          ]
        },
        "isDefault": {
          "type": "boolean"
        }
      },
      "patternProperties": {
        "^(?!(?:name|rules|emailStrategy|duplicateBehavior|isDefault)$)[\\s\\S]*$": false
      },
      "additionalProperties": true,
      "propertyNames": {
        "type": "string",
        "enum": [
          "name",
          "rules",
          "emailStrategy",
          "duplicateBehavior",
          "isDefault"
        ]
      },
      "minProperties": 1,
      "maxProperties": 5
    }
  },
  "required": [
    "workspaceId",
    "action"
  ],
  "patternProperties": {
    "^(?!(?:workspaceId|action|mappingId|create|update)$)[\\s\\S]*$": false
  },
  "additionalProperties": true,
  "propertyNames": {
    "type": "string",
    "enum": [
      "workspaceId",
      "action",
      "mappingId",
      "create",
      "update"
    ]
  },
  "$defs": {
    "AttioFieldMappingId": {
      "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"
    },
    "ShortText": {
      "type": "string",
      "minLength": 1,
      "maxLength": 256
    },
    "AttioFieldMappingRules": {
      "type": "object",
      "additionalProperties": true,
      "minProperties": 0,
      "maxProperties": 200
    }
  }
}
```

### Output schema (structuredContent)

```json
{
  "$defs": {
    "AttioFieldMappingId": {
      "type": "string",
      "pattern": "^([0-9a-fA-F]{8}-[0-9a-fA-F]{4}-[1-8][0-9a-fA-F]{3}-[89abAB][0-9a-fA-F]{3}-[0-9a-fA-F]{12}|00000000-0000-0000-0000-000000000000|[fF]{8}-[fF]{4}-[fF]{4}-[fF]{4}-[fF]{12})$",
      "format": "uuid"
    },
    "ShortText": {
      "type": "string",
      "minLength": 1,
      "maxLength": 256
    },
    "AttioFieldMappingRules": {
      "type": "object",
      "additionalProperties": true,
      "minProperties": 0,
      "maxProperties": 200
    },
    "ProviderId": {
      "type": "string",
      "minLength": 1,
      "maxLength": 512
    },
    "UtcDateTimeEncoded": {
      "type": "string",
      "pattern": "^\\d{4}-\\d{2}-\\d{2}T\\d{2}:\\d{2}:\\d{2}\\.\\d{3}Z$"
    },
    "AttioFieldMapping": {
      "type": "object",
      "properties": {
        "id": {
          "$ref": "#/$defs/AttioFieldMappingId"
        },
        "workspaceId": {
          "type": "string",
          "pattern": "^([0-9a-fA-F]{8}-[0-9a-fA-F]{4}-[1-8][0-9a-fA-F]{3}-[89abAB][0-9a-fA-F]{3}-[0-9a-fA-F]{12}|00000000-0000-0000-0000-000000000000|[fF]{8}-[fF]{4}-[fF]{4}-[fF]{4}-[fF]{12})$",
          "format": "uuid"
        },
        "name": {
          "$ref": "#/$defs/ShortText"
        },
        "rules": {
          "$ref": "#/$defs/AttioFieldMappingRules"
        },
        "emailStrategy": {
          "type": "string",
          "enum": [
            "first",
            "work",
            "personal",
            "ask"
          ]
        },
        "duplicateBehavior": {
          "type": "string",
          "enum": [
            "skip",
            "update"
          ]
        },
        "isDefault": {
          "type": "boolean"
        },
        "providerWorkspaceId": {
          "anyOf": [
            {
              "$ref": "#/$defs/ProviderId"
            },
            {
              "type": "null"
            }
          ]
        },
        "createdAt": {
          "$ref": "#/$defs/UtcDateTimeEncoded"
        },
        "updatedAt": {
          "$ref": "#/$defs/UtcDateTimeEncoded"
        }
      },
      "required": [
        "id",
        "workspaceId",
        "name",
        "rules",
        "emailStrategy",
        "duplicateBehavior",
        "isDefault",
        "providerWorkspaceId",
        "createdAt",
        "updatedAt"
      ],
      "patternProperties": {
        "^(?!(?:id|workspaceId|name|rules|emailStrategy|duplicateBehavior|isDefault|providerWorkspaceId|createdAt|updatedAt)$)[\\s\\S]*$": false
      },
      "additionalProperties": true,
      "propertyNames": {
        "type": "string",
        "enum": [
          "id",
          "workspaceId",
          "name",
          "rules",
          "emailStrategy",
          "duplicateBehavior",
          "isDefault",
          "providerWorkspaceId",
          "createdAt",
          "updatedAt"
        ]
      }
    },
    "AttioCachedList": {
      "type": "object",
      "properties": {
        "listId": {
          "$ref": "#/$defs/ProviderId"
        },
        "name": {
          "$ref": "#/$defs/ShortText"
        },
        "parentObject": {
          "anyOf": [
            {
              "$ref": "#/$defs/ShortText"
            },
            {
              "type": "null"
            }
          ]
        },
        "entryCount": {
          "anyOf": [
            {
              "type": "integer",
              "minimum": 0,
              "maximum": 9007199254740991
            },
            {
              "type": "null"
            }
          ]
        },
        "lastSyncedAt": {
          "anyOf": [
            {
              "$ref": "#/$defs/UtcDateTimeEncoded"
            },
            {
              "type": "null"
            }
          ]
        }
      },
      "required": [
        "listId",
        "name",
        "parentObject",
        "entryCount",
        "lastSyncedAt"
      ],
      "patternProperties": {
        "^(?!(?:listId|name|parentObject|entryCount|lastSyncedAt)$)[\\s\\S]*$": false
      },
      "additionalProperties": true,
      "propertyNames": {
        "type": "string",
        "enum": [
          "listId",
          "name",
          "parentObject",
          "entryCount",
          "lastSyncedAt"
        ]
      }
    }
  },
  "type": "object",
  "anyOf": [
    {
      "allOf": [
        {
          "anyOf": [
            {
              "$ref": "#/$defs/AttioFieldMapping"
            },
            {
              "type": "object",
              "properties": {
                "id": {
                  "$ref": "#/$defs/AttioFieldMappingId"
                },
                "deleted": {
                  "anyOf": [
                    {
                      "type": "boolean",
                      "enum": [
                        true
                      ]
                    }
                  ]
                }
              },
              "required": [
                "id",
                "deleted"
              ],
              "patternProperties": {
                "^(?!(?:id|deleted)$)[\\s\\S]*$": false
              },
              "additionalProperties": true,
              "propertyNames": {
                "type": "string",
                "enum": [
                  "id",
                  "deleted"
                ]
              }
            },
            {
              "type": "object",
              "properties": {
                "synced": {
                  "type": "integer",
                  "minimum": 0,
                  "maximum": 9007199254740991
                },
                "items": {
                  "type": "array",
                  "items": {
                    "$ref": "#/$defs/AttioCachedList"
                  },
                  "maxItems": 1000
                }
              },
              "required": [
                "synced",
                "items"
              ],
              "patternProperties": {
                "^(?!(?:synced|items)$)[\\s\\S]*$": false
              },
              "additionalProperties": true,
              "propertyNames": {
                "type": "string",
                "enum": [
                  "synced",
                  "items"
                ]
              }
            }
          ]
        },
        {
          "type": "object"
        }
      ]
    },
    {
      "type": "object",
      "properties": {
        "data": {
          "allOf": [
            {
              "anyOf": [
                {
                  "$ref": "#/$defs/AttioFieldMapping"
                },
                {
                  "type": "object",
                  "properties": {
                    "id": {
                      "$ref": "#/$defs/AttioFieldMappingId"
                    },
                    "deleted": {
                      "anyOf": [
                        {
                          "type": "boolean",
                          "enum": [
                            true
                          ]
                        }
                      ]
                    }
                  },
                  "required": [
                    "id",
                    "deleted"
                  ],
                  "patternProperties": {
                    "^(?!(?:id|deleted)$)[\\s\\S]*$": false
                  },
                  "additionalProperties": true,
                  "propertyNames": {
                    "type": "string",
                    "enum": [
                      "id",
                      "deleted"
                    ]
                  }
                },
                {
                  "type": "object",
                  "properties": {
                    "synced": {
                      "type": "integer",
                      "minimum": 0,
                      "maximum": 9007199254740991
                    },
                    "items": {
                      "type": "array",
                      "items": {
                        "$ref": "#/$defs/AttioCachedList"
                      },
                      "maxItems": 1000
                    }
                  },
                  "required": [
                    "synced",
                    "items"
                  ],
                  "patternProperties": {
                    "^(?!(?:synced|items)$)[\\s\\S]*$": false
                  },
                  "additionalProperties": true,
                  "propertyNames": {
                    "type": "string",
                    "enum": [
                      "synced",
                      "items"
                    ]
                  }
                }
              ]
            },
            {
              "not": {
                "type": "object"
              }
            }
          ]
        }
      },
      "required": [
        "data"
      ],
      "additionalProperties": false
    }
  ]
}
```

### Underlying API operations

- `attioMappings.create`: `POST /v1/workspaces/:workspaceId/integrations/attio/mappings`
- `attioMappings.update`: `PATCH /v1/workspaces/:workspaceId/integrations/attio/mappings/:mappingId`
- `attioMappings.delete`: `DELETE /v1/workspaces/:workspaceId/integrations/attio/mappings/:mappingId`
- `attioBrowse.syncLists`: `POST /v1/workspaces/:workspaceId/integrations/attio/lists/sync`