HardCopy Labs

Measured conclusion: Deep-tested. L2 outcome: tools_ok.

Order real 3D prints from chat: send an STL or OpenSCAD model, see one price, get it by UPS.

Add to your agent

Copy this into your MCP client config:

{
  "mcpServers": {
    "HardCopy Labs": {
      "url": "https://mcp.hardcopylabs.com/mcp",
      "transport": "streamable-http"
    }
  }
}

Measured tools (5)

• preview_print_order read-only

  MANDATORY before creating any order or checkout, including reorders. Render exact validated geometry and quote the whole order. Display EVERY returned part image with name, dimensions, material/color, quantity, notes and total to the buyer. The in-chat card shows images where supported; otherwise embed image_url values or give viewer_url and ask the buyer to review there. Never substitute an AI illustration, or describe unshown images as reviewed. Ask for explicit buyer confirmation of this version only after presenting the preview. Changes require a new preview and new confirmation; pass replaces_preview_id to revoke the old preview. Preview failure blocks ordering. After confirmation call submit_print_job (or reorder_print_job) using preview_id, preview_version, buyer_confirmed=true and shipping/contact details; do not resend models or option overrides. Preview generation and viewing never create an order. Separate parts are displayed individually, not as an inferred assembly.

  Parameters:

  • color — Selected filament color. Default black for new models; omit to retain reorder colors.
  • notes — string — Operator instructions to show and bind to this preview; changes require a new preview.
  • parts — The WHOLE order, one entry per part. Use a model_id from earlier validation, an STL, or OpenSCAD. Each entry has its own name, material, color and quantity. Each part's quantity is capped by its own print time, not a flat count. Shipping and handling are charged once; never add independent quote totals.
  • job_name — string — Short order name shown with the preview.
  • material — PLA or PETG. Default PLA for new models; omit to retain reorder materials.
  • quantity — integer — How many identical copies. The totals cover all of them. Capped by how long the part takes to print, not a flat number -- a quick part allows many copies, a very large or slow one may allow as few as 1; submit_print_job reports the real cap if this is too many.
  • reorder_of — string — Existing order ID to preview for reorder; omit new model inputs when using this.
  • stl_base64 — string — The model as a base64-encoded STL file (binary or ASCII), in millimeters.
  • openscad_source — string — OpenSCAD source in millimeters. Rendered and validated before preview; never an illustrative AI image.
  • replaces_preview_id — string — When revising an unplaced order, pass its previous preview id. It is invalidated even if the new render fails.

  Hints: read-only yes · destructive no · idempotent yes · open-world no

• validate_stl read-only

  Check whether a 3D model can be printed, before ordering. A text validation quote is NOT approval to order. Call preview_print_order next, show its exact model images/options/price to the buyer, then obtain confirmation. Use this when the user has an STL file (base64-encoded) and wants to know if it is printable, or as a pre-check before submit_print_job. Returns printability (watertight/manifold status), dimensions, which printers it fits on, and the total for each material: what submit_print_job will charge for this file, shipping included. If the user is designing an object in this conversation, generate the STL, then call this to confirm it can be manufactured. Pass quantity (default 1) when the user wants several copies, so the totals cover all of them. For multiple parts, pass the WHOLE order in parts with each material/color/quantity. Never add separate quotes: totals already include shipping and handling once. To keep payloads small, validate each STL first and reuse its model_id (24 hours). PLA and PETG are the only materials offered.

  Parameters:

  • parts — The WHOLE order, one entry per part. Use a model_id from earlier validation, an STL, or OpenSCAD. Each entry has its own name, material, color and quantity. Each part's quantity is capped by its own print time, not a flat count. Shipping and handling are charged once; never add independent quote totals.
  • quantity — integer — How many identical copies. The totals cover all of them. Capped by how long the part takes to print, not a flat number -- a quick part allows many copies, a very large or slow one may allow as few as 1; submit_print_job reports the real cap if this is too many.
  • stl_base64 — string — The model as a base64-encoded STL file (binary or ASCII), in millimeters.

  Hints: read-only yes · destructive no · idempotent yes · open-world no

• submit_print_job

  Create an order ONLY AFTER preview_print_order, image display and buyer confirmation. First present every preview image (or the viewer fallback), dimensions, material/color, quantity and quote. Obtain explicit buyer confirmation for that preview version. Then send preview_id, preview_version, buyer_confirmed=true, job_name and shipping details ONLY; omit model/options fields. Any relevant change needs a new preview. Legacy model inputs without a preview return a preview and NEVER create an order. Set geometry, material, color, quantities and operator notes in preview_print_order. OpenSCAD is preferred for designs made in conversation; uploaded STL and cached model IDs are also supported there. One preview covers the whole multi-part order. Confirm the shipping address with the buyer. ship_to requires their full name and US address; contact_email is used for updates. This returns a job ID and total, plus a payment link when payment is required. The buyer pays in their own browser.

  Parameters:

  • job_name (required) — string — A short name for the item, shown on the order and the receipt, e.g. "Desk cable clip".
  • color — Filament color, e.g. black or white.
  • notes — Optional notes for the operator, e.g. which face should look best.
  • parts — The WHOLE order, one entry per part. Use a model_id from earlier validation, an STL, or OpenSCAD. Each entry has its own name, material, color and quantity. Each part's quantity is capped by its own print time, not a flat count. Shipping and handling are charged once; never add independent quote totals.
  • ship_to — string — Required. Recipient's full name and US street address, including city, state and ZIP. We ship within the United States only.
  • material — Print material: pla or petg.
  • quantity — How many identical copies. Capped by print time, not a flat number; the totals cover all of them.
  • preview_id — string — The id returned by preview_print_order for the images shown to the buyer.
  • stl_base64 — string — The model as a base64-encoded STL file, in millimeters. Give this or openscad_source, not both.
  • contact_email — string — The buyer's email, for the receipt and order updates.
  • buyer_confirmed — boolean — True ONLY after showing every preview image/options/price and receiving explicit buyer confirmation. Not proof of human viewing.
  • openscad_source — string — OpenSCAD source for the model, in millimeters; rendered on our server. Preferred for models designed in the conversation. Give this or stl_base64, not both.
  • preview_version — string — The exact preview version the buyer confirmed; changes require a new preview.

  Hints: read-only no · destructive no · idempotent no · open-world yes

• check_job_status read-only

  Look up the current status of a print job (submitted, approved, printing, QC, shipped) and its UPS tracking number once shipped. Use when the user asks about an order they placed with HardCopy Labs.

  Parameters:

  • job_id (required) — string — The order id, like hc-1a2b3c4d, returned by submit_print_job.

  Hints: read-only yes · destructive no · idempotent yes · open-world no

• reorder_print_job

  A REORDER ALSO REQUIRES A NEW VISUAL PREVIEW AND BUYER CONFIRMATION. First call preview_print_order with reorder_of and any desired changes, show every image/options/price to the buyer, and obtain confirmation. Then call this with preview_id, preview_version and buyer_confirmed=true, without option overrides. Without a preview this returns a preview only; it never creates an order. In preview_print_order, quantity means complete sets for multi-part reorders; material/color overrides apply to every part. Omit overrides to preserve choices. Prices are recalculated. The previous order's geometry is reused without requesting a new upload. Shipping/contact details are never copied from the previous order; confirm the new address with the buyer. Orders cancelled by HardCopy Labs or still awaiting payment cannot be reordered. Returns a new job ID, total and payment link when payment is required, only after the new preview is confirmed.

  Parameters:

  • job_id (required) — string — The id of the earlier order to copy, like hc-1a2b3c4d.
  • ship_to (required) — string — Recipient's full name and US street address, including city, state and ZIP. Not copied from the earlier order. We ship within the United States only.
  • color — string — Filament color. Leave empty to keep the earlier order's color.
  • notes — Optional notes for the operator.
  • material — string — pla or petg. Leave empty to keep the earlier order's material.
  • quantity — How many identical copies. Capped by print time, not a flat number; the totals cover all of them.
  • preview_id — string — The id returned by preview_print_order for the images shown to the buyer.
  • contact_email — string — The buyer's email, for the receipt and order updates. Not copied from the earlier order.
  • buyer_confirmed — boolean — True ONLY after showing every preview image/options/price and receiving explicit buyer confirmation. Not proof of human viewing.
  • preview_version — string — The exact preview version the buyer confirmed; changes require a new preview.

  Hints: read-only no · destructive no · idempotent no · open-world yes

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