SimplyPrint MCP server

• Registry nameio.simplyprint/simplyprintverified in the MCP registry

The registry name sits under simplyprint.io. The registry only lets a publisher use that namespace after proving control of the domain through DNS or HTTP.

• Stateanswerschecked 2026-10-15
• Tools93
• Server calls itselfSimplyPrint MCP
• Server version1.0.0
• Protocol version2025-06-18

On 2026-10-15 the server answered initialize and tools/list without a sign-in. First answer in 183 ms.

• Whether its tools do the product's job has not been judged yet.
• Checked on 4 of the 7 days it takes to judge reliability.

Said by rules from the measurements above. The likely first call is a model's pick from the tool list; read its description before relying on it.

• INITE MCP scoreafter a weeka score needs 7 daily checks: 4 so far
• Use1 GitHub stars
• Answeredmeasuring4 of the 7 daily checks it takes to print a share
• Median first answer709 ms
• Space in an agent's context≈ 16,298 tokensthe definitions of all its tools (93), which an agent carries on every turn
• Tool definitionsB · 88 of 100
• Typed results0 of 93 toolsdeclared outputSchema: results come typed, read once

• Parameters without a description: in 68 of 93

A program checks the server once a day: initialize and tools/list, no model. Tokens are the definitions' length at about four characters a token. The grade averages six checks of every tool's name, description, schema and annotations; it says how well the tools are described, not whether they work. The score weighs what was measured and nothing else: answering (30%), doing the product's job (25%), definitions (20%), context (10%) and use (15%). A part that was not measured is left out, and a hidden instruction caps the score at 40. The state of vendors' MCP servers: method and numbers →

• list_printers

  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…

• get_printer

  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…

• get_farm_overview

  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…

• pause_print

  Pause the current print on a printer

• resume_print

  Resume a paused print on a printer

• cancel_print

  Cancel the current print on a printer

• send_gcode

  Send G-code commands to a printer

• create_print_job

  Start a print job on one or more printers, now or at a chosen time. 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…

• list_scheduled_prints

  List every print across the account that is waiting for a scheduled start time, soonest first. Use this for "what is scheduled tonight", "do I have anything queued up for tomorrow", or before rescheduling/cancelling so you can name the…

• reschedule_print

  Change when a scheduled print starts, or release it immediately. Pass schedule_for with a new absolute instant to move it; omit schedule_for (or send null) to start the print now. Only affects prints still waiting on a scheduled time - a…

• cancel_scheduled_print

  Cancel a print that has not started yet - either waiting for its scheduled time or waiting in a staggered start queue - and free the printer. This does NOT cancel a print that is already running; use cancel_print for that.

• home_printer

  Home the printer axes (move to origin position)

• move_printer_axis

  Move a printer axis to a relative position

• set_printer_fans

  Control the printer cooling fans

• set_printer_motors

  Enable or disable the printer stepper motors

• set_printer_temperatures

  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_queue

  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…

• get_queue_item

  Get details of a specific queue item

• remove_from_queue

  Remove an item from the print queue

• add_to_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 and a tags object for…

• update_queue_item

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

• reorder_queue_item

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

• move_queue_item

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

• revive_queue_item

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

• empty_queue

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

• inspect_printer_queue

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

• get_queue_item_cost

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

• get_next_queue_item

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

• get_next_queue_items_for_printers

  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…

• list_queue_groups

  List all queue groups in the user's account.

• save_queue_group

  Create a new queue group or update an existing one.

• delete_queue_group

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

• reorder_queue_group

  Move a queue group to a new position.

• list_pending_queue_items

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

• approve_queue_item

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

• deny_queue_item

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

• send_back_for_revision

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

• resubmit_queue_item

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

• list_queue_comments

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

• add_queue_comment

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

• update_queue_comment

  Edit an approval comment you authored.

• delete_queue_comment

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

• list_custom_fields

  List custom field definitions with pagination and search.

• list_custom_fields_for

  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

  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

  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_folder

  Get a folder's details including permissions.

• estimate_file_cost

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

• match_file_to_printers

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

• set_file_printers

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

• update_file

  Update file metadata such as name and GCODE analysis.

• assign_tags

  Assign or remove routing tags on a file, including material colour. Use file_id (the UserFile.uid from list_files) and material=[{color, hex, nozzle, ext}] for a colour tag. This tool targets files only (type defaults to 3).

• create_folder

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

• delete_folder

  Delete one or more folders.

• move_file

  Move one or more files to a folder.

• move_folder

  Move a folder to another location.

• delete_file

  Delete one or more files.

• get_slicer_settings_for_file

  Retrieve slicer settings stored for a file.

• list_filaments

  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 +…

• get_filament

  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…

The first 60 of 93, as the server listed them.