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Documentation Index

Fetch the complete documentation index at: https://docs.mem.ai/llms.txt

Use this file to discover all available pages before exploring further.

Mem’s MCP server exposes 22 tools that AI assistants can use to work with your notes, attachments, audio recordings, and collections. You don’t need to know the tool names — just describe what you want in natural language and your AI assistant will pick the right tool.

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Notes

Create a note with an optional note ID and collection links. If omitted, Mem generates the note ID. The first line of content becomes the note title.When to use:
  • You are creating a new note.
  • You need to create a new note with a specific ID.
When NOT to use:
  • You need to overwrite a known existing note by ID (update_note).
  • You only need to change note/collection membership (add_note_to_collection, remove_note_from_collection, or move_note).
Example prompts:
  • “Create a note with my meeting notes from today’s standup”
  • “Save a new note titled ‘Project Ideas’ with these bullet points”
  • “Write a note capturing the key decisions from our planning session”
Fetch the full current state of a single note by ID. If the note is in trash, the response still returns the note and includes trashed_at. For discovery flows, use list_notes or search_notes.When to use:
  • You already have a note ID and need canonical content, linked recording IDs, or attachment IDs.
When NOT to use:
  • You need note discovery without known IDs (list_notes or search_notes).
Example prompts:
  • “Open my note about the API redesign”
  • “Show me the full contents of that meeting notes note”
  • “Pull up my ‘Weekly Goals’ note”
List notes visible to the authenticated caller with cursor pagination. When multiple contains_* fields are true, a note may match any of them. Results are ordered by order_by and return next_page when additional rows are available. For relevance-ranked retrieval by query, use search_notes.When to use:
  • You need deterministic cursor pagination ordered by updated_at or created_at.
  • You are iterating through all accessible notes page by page.
When NOT to use:
  • You need relevance-ranked retrieval from open-ended text (search_notes).
Example prompts:
  • “Show me my recent notes”
  • “List all my notes”
  • “What notes have I created lately?”
Restore a previously trashed note to the active note set. This only reverses soft-delete lifecycle state.When to use:
  • You need to undo a prior trash operation.
When NOT to use:
  • The note is already active and does not need restoration.
Example prompts:
  • “Restore the note I just trashed”
  • “Bring back my deleted meeting notes”
  • “Undo trashing that project plan note”
Search notes using a required free-text query and structured filters. When multiple filter_by_contains_* fields are true, a note may match any of them. Returns note results from a bounded search snapshot with deterministic offset pagination. Query-based searches are relevance-ranked within the bounded search snapshot window. Reuse the returned snapshot_id when requesting later pages. The returned total reflects the bounded search snapshot, capped by the 100-result search window. For deterministic chronological pagination across all accessible notes, use list_notes.When to use:
  • You need relevance-ranked retrieval from a natural-language or keyword query.
  • You need query + filter retrieval instead of full feed traversal.
When NOT to use:
  • You need deterministic chronological pagination (list_notes).
Example prompts:
  • “Find my notes about the Q3 marketing strategy”
  • “Search for anything I’ve written about React performance”
  • “What notes do I have mentioning the onboarding flow?”
Set a note’s visible creation timestamp without changing its content. The supplied created_at must include a timezone offset and cannot be in the future. It can only backdate the note: the timestamp cannot be later than when the note was originally created. This operation changes note metadata only. Trashed notes must be restored before their creation date can be changed.When to use:
  • The user explicitly asks to change or correct a known note’s visible creation date.
When NOT to use:
  • The requested date is later than when the note was originally created.
  • You need to change the note body (update_note).
  • You need to create a new note (create_note).
  • The note is trashed and must be restored first (restore_note).
Example prompts:
  • “Set this meeting note’s creation date to Jan 7, 2020”
  • “Change this note’s visible creation date to March 15, 2024”
  • “Correct this note so it shows it was created on April 20, 2026”
Soft-delete a note by moving it to trash. Trashed notes can be restored via restore_note.When to use:
  • You need reversible removal from active notes.
Example prompts:
  • “Trash my old scratch notes from last week”
  • “Move that draft note to the trash”
  • “Get rid of the note titled ‘Untitled’”
Submit a complete markdown body for a note and the exact version being updated. Send the full desired body in content (not a partial markdown patch). The first line of content becomes the updated title. Trashed notes must be restored before they can be updated.When to use:
  • You need full-body replacement for an existing note ID.
When NOT to use:
  • You need partial patch semantics (not supported).
  • You need to create a new note (create_note).
  • You only need to change a note’s visible creation date (set_note_created_at).
  • The note is trashed and must be restored first (restore_note).
Example prompts:
  • “Add a new section to my project plan note”
  • “Update my grocery list note with these items”
  • “Append today’s action items to my standup notes”

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Attachments

Ask one focused question about a single attachment by kind and ID. Use attachment_kind and attachment_id returned in note attachment metadata.When to use:
  • You have attachment_kind and attachment_id from get_note attachment metadata and need one grounded answer from that attachment.
  • You want the model to inspect a single attachment without returning all extracted pages or content chunks.
When NOT to use:
  • You need structured extracted content or pagination controls (read_attachment).
  • You need the raw protected file bytes or a signed download URL (get_note_attachment_download_url).
Example prompts:
  • “Using the PDF attached to this note, what are the launch requirements?”
  • “Ask the image attachment what text appears in the screenshot”
  • “From this attachment, answer whether it mentions renewal terms”
Generate a temporary signed download URL for a note attachment. Use this when note content references an attachment, but the underlying file URL is not directly downloadable. The caller must be able to access the requested attachment.When to use:
  • You have an attachment ID from get_note attachment_metadata or note content and need a temporary signed URL to fetch the protected file behind that attachment reference.
  • Use this when note content references an attachment, but the underlying file URL is not directly downloadable.
When NOT to use:
  • You need note-level discovery or attachment IDs (get_note).
  • You do not have an attachment ID from get_note or note content.
Example prompts:
  • “Download the image attached to that note”
  • “Transcribe the contents of the PDF attached to that note”
  • “Get the attachment from that note so you can read the PDF and summarize it”
Read structured content for a single attachment by kind and ID. Use attachment_kind and attachment_id returned in note attachment metadata.When to use:
  • You have attachment_kind and attachment_id from get_note attachment metadata and need structured extracted content.
  • You need PDF pages, image OCR/visual metadata, audio transcripts, calendar event text, or email text without downloading the raw file.
When NOT to use:
  • You need the raw protected file bytes or a signed download URL (get_note_attachment_download_url).
  • You only need one focused answer from the attachment (answer_question_about_attachment).
Example prompts:
  • “Read the PDF attachment from this note and show me the first pages”
  • “Get the OCR text from the image attached to this note”
  • “Use the attachment metadata from this note to inspect the attached document”

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Audio recordings

Fetch the current public transcript and metadata for a single audio recording by ID.When to use:
  • You already have an audio recording ID and need its transcript + metadata.
When NOT to use:
  • You need note-level discovery or linked recording IDs (get_note).
Example prompts:
  • “Show me the transcript for the recording attached to this note”
  • “Open the transcript from my meeting note and include the recording details”
  • “What audio recording is linked to this note? Show me the transcript”

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Collections

Add an existing note to an existing collection. This operation only creates the membership link and does not modify note or collection content. Use create endpoints to create notes or collections.When to use:
  • You need to link an existing note to an existing collection.
When NOT to use:
  • You need to create notes or collections first (create_note or create_collection).
  • You need to transfer a note out of one collection into another (move_note).
Example prompts:
  • “Add that meeting notes note to my ‘Project Phoenix’ collection”
  • “Put this note in the ‘Research’ collection”
Create a collection with optional caller-provided ID and timestamps. If id already exists, this request returns a conflict. Use collection membership endpoints to add, remove, or move notes between collections.When to use:
  • You are creating a new collection.
  • You need to create a new collection with an optional caller-provided ID or timestamps.
When NOT to use:
  • You need to update an existing collection by ID (update_collection).
  • You only need membership changes between existing notes and collections (add_note_to_collection, remove_note_from_collection, or move_note).
Example prompts:
  • “Create a new collection called ‘Project Phoenix’”
  • “Make a collection for my interview prep notes”
  • “Set up a ‘Reading List’ collection”
Permanently delete a collection. Hard-deleting removes the collection resource itself. For membership-only changes, use note add, remove, or move collection endpoints.When to use:
  • You need irreversible hard-delete behavior for a collection resource.
When NOT to use:
  • You only need note membership changes in a collection (add_note_to_collection, remove_note_from_collection, or move_note).
Example prompts:
  • “Delete my old ‘Temp’ collection”
  • “Remove the ‘Archive 2023’ collection”
Fetch metadata for a single collection by ID. This tool returns collection metadata only, not a note list for that collection. For discovery flows, use list_collections or search_collections.When to use:
  • You already have a collection ID and need canonical metadata.
When NOT to use:
  • You need collection discovery without known IDs (list_collections or search_collections).
Example prompts:
  • “Show me what’s in my ‘Research’ collection”
  • “Open the ‘Project Phoenix’ collection”
  • “What notes are in my ‘Design Docs’ collection?”
List collections visible to the authenticated caller with cursor pagination. Results are ordered by order_by and return next_page when additional rows are available. For relevance-ranked retrieval by query, use search_collections.When to use:
  • You need deterministic cursor pagination for collections.
  • You are iterating through all accessible collections page by page.
When NOT to use:
  • You need relevance-ranked retrieval from open-ended text (search_collections).
Example prompts:
  • “Show me all my collections”
  • “What collections do I have?”
  • “List my collections”
  • “List collections updated after April 1”
Move a note from one collection to another collection. This operation adds the note to the target collection, then removes it from the source collection. It does not modify note or collection content.When to use:
  • You need to transfer an existing note from one collection to another.
When NOT to use:
  • The note should remain in the source collection; use add_note_to_collection.
  • You only need to unlink a note from a collection; use remove_note_from_collection.
Example prompts:
  • “Move the Q1 risks note from ‘Planning’ to ‘Exec Briefings’”
  • “Transfer this note from ‘Inbox’ to ‘Project Phoenix’”
Remove a note from a collection while keeping both resources. This operation only removes the membership link between IDs. Use trash_note to remove a note from active notes, or delete_collection to remove a collection resource.When to use:
  • You need to unlink a note from a collection while keeping both resources.
When NOT to use:
  • You need to remove the note from active notes (trash_note) or delete the collection resource (delete_collection).
  • You need to transfer a note directly to another collection (move_note).
Example prompts:
  • “Remove that note from the ‘Archive’ collection”
  • “Take the recipe note out of my ‘Dinner Ideas’ collection”
Search collections using free-text relevance matching. Returns a bounded relevance-ranked result set and does not return next_page. For deterministic chronological pagination, use list_collections.When to use:
  • You need relevance-ranked retrieval for collection lookup.
When NOT to use:
  • You need deterministic chronological pagination (list_collections).
Example prompts:
  • “Find my collection about frontend architecture”
  • “Search for a collection related to hiring”
  • “Do I have a collection for design docs?”
  • “Find collections about hiring that were updated this quarter”
Update metadata for a collection by ID. Use this tool to rename a collection by setting title. This tool updates only provided fields (title, description) and leaves omitted fields unchanged. For read-only retrieval, use get_collection.When to use:
  • You need to rename a collection by updating its title.
  • You need to update title and/or description for an existing collection ID.
  • You need to preserve a collection while correcting metadata.
When NOT to use:
  • You need to create a new collection (create_collection).
  • You only need note membership changes (add_note_to_collection, remove_note_from_collection, or move_note).
Example prompts:
  • “Rename my ‘Q1 Ideas’ collection to ‘Q2 Ideas’”
  • “Update the description of ‘Project Phoenix’ to include launch milestones”
  • “Change this collection title to ‘Customer Research’ and keep everything else the same”

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Rate limits and quotas

Mem MCP requests are backed by the Mem API and follow the same API rate limits and quotas. For current limits, see /api-reference/overview/rate-limits. If limits are exceeded, requests return HTTP 429 and include a Retry-After header.