SimplyPrint: 3D Print Farm Management

List MULTIPLE printers with optional filters. For details on a single known printer, call get_printer instead — do not list-then-filter. For farm-wide counts ("how many printers are doing X"), call get_farm_overview instead — do not paginate this. Use status=["online"] to only see reachable printers

Get details, status, temps, current job, filament, notifications for ONE specific printer by id. Use this (not list_printers) whenever the user asks about a single printer they've already identified — "status of printer X", "what's printer 5 doing", "temperature on Creality K2". Cheaper and less noi

One-shot summary of farm-wide printer state. Use this (NOT list_printers) when the user asks "how many printers are printing/idle/awaiting bed clear/etc." or "what is the state of the farm". Returns a total and {count, printers:[{id,name}]} for each bucket: online, offline, not_connected, operationa

Pause the current print on a printer

Resume a paused print on a printer

Cancel the current print on a printer

Send G-code commands to a printer

Start a print job on one or more printers. File source is exactly one of: file_id (API file hash from upload), filesystem (user-file uid), queue_file (existing queue item id), reprint (previous print-job id), or next_queue_item=true (auto-pick the next matching queue item per printer, deduplicated a

Home the printer axes (move to origin position)

Move a printer axis to a relative position

Control the printer cooling fans

Enable or disable the printer stepper motors

Set target temperatures (nozzle, bed and/or chamber) on one or more printers - works while idle and mid-print. Values above the printer model maximum are clamped; 0 turns a heater off.

List print queue items with optional filters. Supports filtering by assigned printer(s), group, approval status, tags, queue-item custom-field values, and age. Example: older_than_days=7 for "items added more than 7 days ago", or custom_fields=[{id: "<uuid>", value: "Engineering"}] for a specific de

Get details of a specific queue item

Remove an item from the print queue

Queue a file for printing. Pick exactly one file source: fileId (hex hash from the files.simplyprint.io Upload endpoint) or filesystem (UserFile.uid of an existing library file). Supports PRINT_QUEUE custom fields.

Update a queue item (amount, note, custom print time, material usage, printer assignments).

Move a single queue item to a new 1-based position.

Move one or more queue items to a different queue group.

Bring a completed (done) queue item back to the active queue.

DESTRUCTIVE: Delete all items from the queue (optionally filtered by group or done-only). Confirm with the user before calling.

Show which queue items match/miss a specific printer and why. Useful for diagnosing why a queue item will not print.

Calculate the estimated cost of a queue item, optionally for a specific printer.

Find the best-matching queue item(s) for a set of printers using SimplyPrint's compatibility matcher.

Read-only preview: for each given printer, return the next queue item that would be started. Uses the same dedup matcher as create_print_job with next_queue_item=true, so the same queue item is never returned twice across printers in one call. Includes match failures per printer (issues) so you can

List all queue groups in the user's account.

Create a new queue group or update an existing one.

Delete a queue group. Optionally move its items to another group via move_to.

Move a queue group to a new position.

List queue items pending approval (status: PENDING, DENIED, or REVISION).

Approve one or more pending/revision/denied queue items, with optional comment.

Deny a pending queue item, either removing it or requesting revisions. Include a comment explaining the decision.

Revoke approval on an already-approved item and send it back to the submitter for revisions.

Resubmit a denied or revision-requested queue item back to pending approval. File-replacement is not supported via MCP.

Retrieve all approval comments on a queue item or user file.

Add a comment (general or feedback) to a queue item or user file. File attachments are not supported via MCP.

Edit an approval comment you authored.

Delete an approval comment you authored (or any comment if you have the permission).

List custom field definitions with pagination and search.

List custom field definitions for a specific entity category and optional sub-category (e.g. PRINT + PRINT_QUEUE for queue-item custom fields).

Set custom field values on one or more entities (queue items, files, printers, etc.). Use this to set a "deadline" or similar field across many queue items at once.

List files and folders in the user's SimplyPrint storage. With pid set, only returns files compatible with that printer (full compatibility check). With global_search=true (default), searches recursively across all folders.

Get a folder's details including permissions.

Estimate the print cost of a file, optionally for a specific printer.

Find which printer models in the account are compatible with a given file.

Set the printers/models/groups a file is assigned to.

Update file metadata such as name and GCODE analysis.

Create a new folder (or edit an existing one with optional org-level permissions).

Delete one or more folders.

Move one or more files to a folder.

Move a folder to another location.

Delete one or more files.

Retrieve slicer settings stored for a file.

List filament spools with optional filters and sorting. Accounts often have hundreds of spools, so ALWAYS pair sort_by with a limit. Use sort_by=last_used + limit=10 for "most used / most popular spool" questions. Use sort_by=created + limit=N for recently added. Use sort_by=left for emptiest/fulles

Get details of one specific filament spool. Use this (NOT list_filaments+grep) when the user names a spool by id or short id. Accepts spool_id (the integer DB id) or spool_short_id (the 4-character code shown on QR labels and the spool view page, e.g. "T2SO", "M0WT").

Adjust the remaining weight of a filament spool (e.g. after manual weighing).

Assign a filament spool to a printer (or a specific extruder slot).

Remove a filament spool from its printer assignment.

Retrieve the usage history of a filament spool.

Mark a filament spool as freshly dried (resets humidity tracking).

List available filament colors (for UI pickers or picking similar spools).

List filament products from a specific brand.

List past print jobs with pagination, filters, and sort. Compact mode (default) drops gcodeAnalysis, filament breakdowns, and panel-only flags.

Get detailed info for a specific print job.

Archive a print job (hide from default history listings).

Restore an archived print job.

Account-level print statistics (success rate, filament used, print time, cost) with optional date range and user/printer filters.

Overview of maintenance jobs, problems, inventory, and printer maintenance status.

Referral program statistics: conversions, earnings, pending payout.

Get one or more realistic sample webhook payloads for a specific event type, matching the envelope a live webhook delivery would produce. Used by integration platforms (Activepieces, n8n, Zapier) to show the payload shape before any real event fires. Falls back to synthetic data when no applicable e