Respond to comments with useful history
Use a new comment as a cue to retrieve related context already stored in Mem0.
Trigger
Comment Created
Triggers when a new comment is created in Notion. Optional `page_id` filter scopes to comments on a specific page. When omitted, fires for any new comment in the workspace the integration has access to. Requires the 'Read comments' capability on the Notion integration. If a connection was authorized before that capability was enabled, the user must re-authorize the connection for comment events to flow.
Action
Perform semantic search on memories
Searches memories semantically using a natural language query (required if `only metadata based search` is false) and/or metadata filters. required: at least one of agent id, user id, app id, or run id must be provided. when `only metadata based search` is true, the `metadata` parameter is required.
Why this helps
A comment can require a response before you have time to dig up the history behind the discussion.
- Bring relevant history into comment follow-up.
- Spend less time searching before responding.
- Make it easier to distinguish a new issue from a recurring one.
Setup
Build it in a few focused steps.
- 1Connect Notion and Mem0 to Notis once in the portal.
- 2Create an automation through the portal or ask Notis to search memory when a comment appears.
- 3Prompt Notis to search Mem0 for memories related to each new Notion comment and present a short context summary.
- 4Select the Notion Comment Created trigger and choose a channel for run reports.
- 5Test with one real comment and ensure the search has a valid Mem0 entity association.
Questions about this workflow
Does the comment trigger need extra access?
Yes. The Notion integration needs Read comments enabled, and an existing connection may need re-authorization.
Can this workflow reply to the comment?
No. Its Mem0 action searches memories and presents relevant context; it does not post a Notion reply.
When this happens · Trigger
Do this · Action
Supported Triggers and Actions
Notis builds workflows that link Notion to Mem0. A trigger fires from one place; an action lands in another.
Notion triggers
Mem0 actions
Recurring trigger
Notis starts this workflow on a schedule, such as daily, weekly, or during business hours.
Add member to project
Adds an existing user to a project (identified by `project id` within organization `org id`), assigning a valid system role.
Webhook trigger
Notis starts this workflow when an external tool or custom backend sends an HTTP request.
Add new memory records
Stores new memory records from a list of messages, optionally inferring structured content; requires association via `agent id`, `user id`, `app id`, or `run id`.
All Page Events
Triggers when any Notion page is created or updated across the workspace.
Add organization member
Adds a new member, who must be a registered user, to an organization, assigning them a specific role.
Comment Created
Triggers when a new comment is created in Notion. Optional `page_id` filter scopes to comments on a specific page. When omitted, fires for any new comment in the workspace the integration has access to. Requires the 'Read comments' capability on the Notion integration. If a connection was authorized before that capability was enabled, the user must re-authorize the connection for comment events to flow.
Create a new agent
Creates a new agent with a unique `agent id` and an optional `name`; additional metadata may be assigned by the system.
New Comment
Triggers when a new comment is added to a specified Notion block or page.
Create a new agent run
Creates a new agent run in the mem0.ai system.
Database Created
Triggers when a new Notion database (the container) is created. A database is the post-2025-09-03 container that holds one or more data sources. This trigger fires for the container's creation event (`database.created`), distinct from `NOTION_DATASOURCE_CREATED` which fires when a new data source is added to an existing database. Most customers calling Notion's `POST /v1/databases` (the legacy API) or creating a database via the Notion UI will see this event. Adding a new data source to an existing database fires `data_source.created` instead — use `NOTION_DATASOURCE_CREATED` for that. Notion's payload puts `entity.type: "block"` (the container is a `child_database` block in the content tree) and `entity.id` is the database id.
Create a new application
Creates a new application, allowing metadata to be passed in the request body (not an explicit field in this action's request model); ensure `app id` is unique to avoid potential errors or unintended updates.
Data Source Created
Triggers when a new Notion data source is created. Fires workspace-wide. The payload's `data.parent` carries the data source's tree parent (typically the teamspace) for downstream filtering. A single template-based database creation can fire multiple `data_source.created` events at once — one per data source the template instantiates.
Create a new organization entry
Creates a new organization entry using the provided name and returns its details.
Data Source Schema Updated
Triggers when a Notion data source's schema is updated. Fires on column add / remove / rename. Payload includes `data.updated_properties: [{id, name, action}]` so consumers can discriminate the kind of change downstream. Optional `data_source_id` filter scopes to schema changes on a single data source. When omitted, fires for any schema change in the workspace the integration has access to. Note: adding a column also fires `page.properties_updated` once per existing row in the data source. Customers wanting a single structural-change signal should use this trigger.
Create a new user
Creates a new user with the specified unique `user id` and supports associating `metadata` (not part of the request schema fields).
Connect any two apps with Notis in the middle.
Notion and Mem0, or any other combination from 1,000+ integrations.
When this happens · Trigger
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