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ply 3D Printing

REMOTE · WWW.PLYPARTS.COM

Custom 3D-printed parts: describe a part, upload a 3D file or pick a model, see a live price, order.

Available components

+3 this week 77 Trust /100

Last scanned (2 hours ago)

Scores higher than 68% of remote servers

Reachable. Last reached 5 Nov 2026.

Category IoT and Hardware

Trust breakdown (7 categories)

How this component scores in each security and reliability category. Every signal is checked automatically against the live server, and we only credit what we can confirm. How we score → Why this is hard to score →

Endpoint Security80
Transport & Reachability100
Schema Quality & AI Usability68
  • 100% of prompts and resources have a non-trivial description (not blank, and not just the item's name).Pass
  • AI-judged instruction clarity (good).Pass
  • Context-footprint check failed: tool/resource definitions use about 5084 tokens (~508/item across 10 items; 9 tools + 1 resources), over budget; trim descriptions and params. See how to fix → Fail
  • Usage-examples check failed: none of the tools include examples. See how to fix → Fail
Stability & Change Management33
  • Stability observed for 10 of 30 days with no destabilising changes; credit accrues until the full window elapses.Partial
Tool Coverage100
  • 100% of tools have a non-trivial description (not blank, and not just the tool's name).Pass
  • 99% of tool parameters carry a description.Partial
Tool Safety100
  • No prompt-injection markers were found in the server instructions, tool names or descriptions we captured.Pass
  • We read all 9 captured tool definition(s), and no name or description among them implies an irreversible operation.Pass
  • An AI judge read all 11 captured unit(s) of tool text and found none that tries to manipulate the model reading it.Pass
Capabilities100
  • Implements a current MCP spec version (2026-07-28).Pass
  • Supports UI / widget rendering.Pass
Changelog

Every change we have recorded for this component, newest first. Security-relevant changes are always shown. ▲ marks a change for the better, ▼ a change for the worse; unmarked changes are neutral.

  • 5 Nov 26 +1
    • Resource “ply part card” now points somewhere else: ui://ply/part-card-cee7fa74c723.html → ui://ply/part-card-59e3d8aaf3e4.html security
    • The server rewrote its instructions, which are the text every model session reads security
    • Schema quality: 417 → 508 ▼ functional
    • New tool “order_cart” functional
    • New tool “price_cart” functional
    • “make_part” added an optional parameter “armA” cosmetic
    • “make_part” added an optional parameter “armB” cosmetic
    • “make_part” added an optional parameter “cableDiameter” cosmetic
    • “make_part” added an optional parameter “centerHole” cosmetic
    • “make_part” added an optional parameter “gusset” cosmetic
    • “make_part” added an optional parameter “holes” cosmetic
    • “make_part” added an optional parameter “keys” cosmetic
    • “make_part” added an optional parameter “length” cosmetic
    • “make_part” added an optional parameter “panelThickness” cosmetic
    • “make_part” added an optional parameter “plugDepth” cosmetic
    • “make_part” added an optional parameter “profile” cosmetic
    • “make_part” added an optional parameter “reach” cosmetic
    • “make_part” added an optional parameter “slotHoles” cosmetic
    • “make_part” added an optional parameter “slotOffset” cosmetic
    • “make_part” added an optional parameter “span” cosmetic
    • “order_part” added an optional parameter “armA” cosmetic
    • “order_part” added an optional parameter “armB” cosmetic
    • “order_part” added an optional parameter “cableDiameter” cosmetic
    • “order_part” added an optional parameter “centerHole” cosmetic
    • “order_part” added an optional parameter “gusset” cosmetic
    • “order_part” added an optional parameter “holes” cosmetic
    • “order_part” added an optional parameter “keys” cosmetic
    • “order_part” added an optional parameter “length” cosmetic
    • “order_part” added an optional parameter “panelThickness” cosmetic
    • “order_part” added an optional parameter “plugDepth” cosmetic
    • “order_part” added an optional parameter “profile” cosmetic
    • “order_part” added an optional parameter “reach” cosmetic
    • “order_part” added an optional parameter “slotHoles” cosmetic
    • “order_part” added an optional parameter “slotOffset” cosmetic
    • “order_part” added an optional parameter “span” cosmetic
    • “recommend_material” added an optional parameter “armA” cosmetic
    • “recommend_material” added an optional parameter “armB” cosmetic
    • “recommend_material” added an optional parameter “cableDiameter” cosmetic
    • “recommend_material” added an optional parameter “centerHole” cosmetic
    • “recommend_material” added an optional parameter “gusset” cosmetic
    • “recommend_material” added an optional parameter “holes” cosmetic
    • “recommend_material” added an optional parameter “keys” cosmetic
    • “recommend_material” added an optional parameter “length” cosmetic
    • “recommend_material” added an optional parameter “panelThickness” cosmetic
    • “recommend_material” added an optional parameter “plugDepth” cosmetic
    • “recommend_material” added an optional parameter “profile” cosmetic
    • “recommend_material” added an optional parameter “reach” cosmetic
    • “recommend_material” added an optional parameter “slotHoles” cosmetic
    • “recommend_material” added an optional parameter “slotOffset” cosmetic
    • “recommend_material” added an optional parameter “span” cosmetic
    • “make_part” reworded the description of “shape” cosmetic
    • “make_part” reworded the description of “template” cosmetic
    • “order_part” reworded the description of “shape” cosmetic
    • “order_part” reworded the description of “template” cosmetic
    • “recommend_material” reworded the description of “shape” cosmetic
    • “recommend_material” reworded the description of “template” cosmetic
  • 3 Nov 26 +1

    No change was recorded against any check on this day. Stability & Change Management went from 23 to 27. That category is still filling its 30-day observation window: 7 days of observed history at the previous scan, 8 at this one. The score rises as the window fills, whether or not the server changes.

  • 2 Nov 26 0
    • Resource “ply part card” now points somewhere else: ui://ply/part-card-51ef19422016.html → ui://ply/part-card-cee7fa74c723.html security
  • 1 Nov 26 0
    • Resource “ply part card” now points somewhere else: ui://ply/part-card-362e7927f0b0.html → ui://ply/part-card-51ef19422016.html security
    • The server rewrote its instructions, which are the text every model session reads security
    • Tool “find_models” rewrote its description, which is the text the model reads security
    • Tool “price_model_link” rewrote its description, which is the text the model reads security
    • Schema quality: 468 → 417 ▲ functional
    • “price_model_link” reworded the description of “title” cosmetic
    • “price_model_link” dropped the optional parameter “file” cosmetic
    • “price_model_link” dropped the optional parameter “sizeMm” cosmetic
    • Tool “price_model_link” changed its title: Price a model from a link → Show a model's link with an upload box cosmetic
  • 31 Oct 26 +1
    • Resource “ply part card” now points somewhere else: ui://ply/part-card-d445e219fc96.html → ui://ply/part-card-362e7927f0b0.html security
  • 30 Oct 26 0
    • Resource “ply part card” now points somewhere else: ui://ply/part-card-f8a11df76587.html → ui://ply/part-card-d445e219fc96.html security
  • 29 Oct 26 +1

    No change was recorded against any check on this day. Stability & Change Management went from 7 to 10. That category is still filling its 30-day observation window: 2 days of observed history at the previous scan, 3 at this one. The score rises as the window fills, whether or not the server changes.

  • 27 Oct 26 +1
    • Stability: unverified → 0.03 ▲ functional
Diagnostics

Diagnostic detail from the automated scan of this channel: what the scanner observed at each step, so you can see exactly where a check passed or failed. It is informational only and never changes the trust score.

Captured 5 Nov 2026 · Probed https://www.plyparts.com/mcp

TLS valid

Negotiated TLS 1.3 with TLS_AES_128_GCM_SHA256 .

Subject Issuer Valid from Valid until Key Signature Serial
CN=www.plyparts.com CN=YR2,O=Let's Encrypt,C=US 15 Oct 2026 13 Jan 2027 RSA 2048 SHA256-RSA 6864078fe06c7b0c6a907d000edadf9550e
SANs: www.plyparts.com
CN=YR2,O=Let's Encrypt,C=US (CA) CN=Root YR,O=ISRG,C=US 3 Sept 2025 2 Sept 2028 RSA 2048 SHA256-RSA 4ebd24947e24d394802d84a52fd5b319
CN=Root YR,O=ISRG,C=US (CA) CN=ISRG Root X1,O=Internet Security Research Group,C=US 13 May 2026 2 Sept 2032 RSA 4096 SHA256-RSA f24b6d17f9d9ad7cb1c9fea78782699f

Background: What to check on a remote MCP endpoint →

DNSSEC insecure

Validation of www.plyparts.com. — Not signed

Zone DS Keys Algorithms Outcome
. trust_anchor 20326, 38696 8, 8 Verified
com. present 19718 13 Verified
plyparts.com. absent Unsigned (proven) parent-signed NSEC/NSEC3 proves an unsigned delegation
Authentication No authorisation required

The endpoint answered without asking for a token. Anyone who knows the URL can reach it.

Result No authorisation required
HTTP status 200
Header Value
strict-transport-security max-age=63072000

Background: How OAuth 2.1 works in the 2026 MCP spec →

Transports 2 probes
Transport URL Outcome Status Location
streamable-http https://www.plyparts.com/mcp Verified 200
http (plaintext) http://www.plyparts.com/mcp HTTPS enforced 308 https://www.plyparts.com/mcp
MCP tools · 9 exposed · ~4,034 tokens

The tools this component advertises to a client, with an estimated token cost for each. Expand a tool to see its parameters and schema. The per-tool counts are indicative and are not scored directly; the schema's total context footprint is one signal in Schema Quality & AI Usability. A tool's description is untrusted text the model reads on every call, which is what makes this list a security surface and not just an inventory: how tool poisoning works →

Tool Tokens
find_models ~62

Search Printables for ready-made 3D models. Returns titles, designers and page links; the customer downloads their pick and drops it into ply's card.

NameTypeReqDescription
querystringyesWhat to look for, e.g. 'milwaukee m18 battery holder'

No output schema declared.

No examples provided.

list_materials ~30

The materials, colors and strength levels ply prints custom parts in, with what each material is good for.

Input schema present but exposes no named parameters.

No output schema declared.

No examples provided.

make_part ~999

Build, check and price a custom 3D-printed part from exact sizes (mm): plate with holes, L-bracket, spacer/standoff, washer, or box with lid. Shows the part in 3D with its price and an Order button. Sizes left out use sensible defaults. Use again with new sizes or options when the customer asks for changes.

NameTypeReqDescription
armAinteger–tslot-plate: holes along the first arm
armBinteger–tslot-plate: holes along the second arm
cableDiameternumber–tslot-cable: cable bundle diameter (mm)
centerHolestring–tslot-cap: hole to reach the end bolt
colorstring–Color name, e.g. black, white, red (default black)
cornerRadiusnumber–plate: outside corner radius, 0 = square; box: inside corner radius (mm)
depthnumber–plate: depth (mm)
extraHolesarray–plate: holes at exact spots, x/y = hole center in mm from the plate's center
gridColumnsinteger–plate, grid: hole columns
gridRowsinteger–plate, grid: hole rows
gussetstring–tslot-bracket: side gussets
heightnumber–spacer: height; washer: thickness (mm)
holeDiameternumber–plate: diameter of the pattern holes; bracket: hole diameter (0 = no holes) (mm)
holeInsetnumber–plate, corner holes: distance from each edge to the hole center (mm)
holePatternstring–plate: hole layout
holesinteger–tslot-bracket: bolts per leg (1–4)
holesAinteger–bracket: holes in the base leg
holesBinteger–bracket: holes in the upright leg
innerDepthnumber–box: inside depth (mm)
innerDiameternumber–spacer/washer: hole diameter, 0 = solid spacer (mm)
innerHeightnumber–box: inside height (mm)
innerRadiusnumber–bracket: inside corner radius (mm)
innerWidthnumber–box: inside width (mm)
keysstring–tslot-bracket/mount/panel: alignment keys that sit in the slot
legAnumber–bracket: base leg length (mm)
legBnumber–bracket: upright leg length (mm)
lengthnumber–tslot-cover: length (mm)
lidstring–box: lid
materialstring–Material name or id, e.g. PLA, PETG, ASA, TPU (default PLA).
outerDiameternumber–spacer/washer: outside diameter (hex: across the flats) (mm)
panelThicknessnumber–tslot-panel: panel thickness (mm)
plugDepthnumber–tslot-cap: plug length into the slots (mm)
profilestring–T-slot parts: the extrusion (8020-10 = 80/20 10 series 1 in, 8020-15 = 15 series 1.5 in, m20 = 20 mm / 2020)
quantityinteger–How many (default 1)
reachnumber–tslot-panel: overlap onto the panel (mm)
shapestring–spacer/washer: round or hex; tslot-plate: L, T, X, straight or gusset
slotHolesinteger–tslot-mount: bolts into the slot
slotOffsetnumber–tslot-mount: slot line from the plate's center, across (mm)
spanstring–tslot-bracket: one or two profiles wide
strengthstring–Plastic parts only. Default balanced; strong for parts under load
templatestringyesplate = flat plate with holes; bracket = L-bracket; spacer = spacer/standoff; washer; box = box with optional lift-off lid; for T-slot aluminum extrusion (pick its profile): tslot-bracket = corner br…
thicknessnumber–plate/bracket: thickness (mm)
wallnumber–box: wall thickness (mm)
widthnumber–plate/bracket: width (mm)

No output schema declared.

No examples provided.

order_cart ~111

Put every part from price_cart into one ply cart and get the link to finish the order on plyparts.com (shipping, payment, engineer review). Pass the same parts list. Nothing is charged here.

NameTypeReqDescription
partsarrayyesEvery part in the cart (up to 40): a built part (template + sizes) or a file (path from price_file), each with its own material, color, strength and quantity
thumbsarray–Leave empty (the ply card fills in pictures).

No output schema declared.

No examples provided.

order_part ~1,108

Put a part into a ply cart and get the link to finish the order on plyparts.com (shipping, payment, engineer review). Nothing is charged here. For a built part pass the same template, sizes and options; for a file pass its path and options.

NameTypeReqDescription
armAinteger–tslot-plate: holes along the first arm
armBinteger–tslot-plate: holes along the second arm
cableDiameternumber–tslot-cable: cable bundle diameter (mm)
centerHolestring–tslot-cap: hole to reach the end bolt
coatingstring–Resin only: coating (needs sanding)
colorstring–Color name, e.g. black, white, red (default black)
cornerRadiusnumber–plate: outside corner radius, 0 = square; box: inside corner radius (mm)
depthnumber–plate: depth (mm)
extraHolesarray–plate: holes at exact spots, x/y = hole center in mm from the plate's center
fileNamestring––
gridColumnsinteger–plate, grid: hole columns
gridRowsinteger–plate, grid: hole rows
gussetstring–tslot-bracket: side gussets
heightnumber–spacer: height; washer: thickness (mm)
holeDiameternumber–plate: diameter of the pattern holes; bracket: hole diameter (0 = no holes) (mm)
holeInsetnumber–plate, corner holes: distance from each edge to the hole center (mm)
holePatternstring–plate: hole layout
holesinteger–tslot-bracket: bolts per leg (1–4)
holesAinteger–bracket: holes in the base leg
holesBinteger–bracket: holes in the upright leg
innerDepthnumber–box: inside depth (mm)
innerDiameternumber–spacer/washer: hole diameter, 0 = solid spacer (mm)
innerHeightnumber–box: inside height (mm)
innerRadiusnumber–bracket: inside corner radius (mm)
innerWidthnumber–box: inside width (mm)
keysstring–tslot-bracket/mount/panel: alignment keys that sit in the slot
legAnumber–bracket: base leg length (mm)
legBnumber–bracket: upright leg length (mm)
lengthnumber–tslot-cover: length (mm)
lidstring–box: lid
materialstring–Material name or id, e.g. PLA, PETG, ASA, TPU (default PLA).
outerDiameternumber–spacer/washer: outside diameter (hex: across the flats) (mm)
panelThicknessnumber–tslot-panel: panel thickness (mm)
pathstring–A file's ply path (from price_file)
plugDepthnumber–tslot-cap: plug length into the slots (mm)
processstring–fdm = plastic (default); resin = fine detail (miniatures, figurines, smooth looks)
profilestring–T-slot parts: the extrusion (8020-10 = 80/20 10 series 1 in, 8020-15 = 15 series 1.5 in, m20 = 20 mm / 2020)
quantityinteger–How many (default 1)
reachnumber–tslot-panel: overlap onto the panel (mm)
sandingboolean–Resin only: sanded finish
shapestring–spacer/washer: round or hex; tslot-plate: L, T, X, straight or gusset
slotHolesinteger–tslot-mount: bolts into the slot
slotOffsetnumber–tslot-mount: slot line from the plate's center, across (mm)
spanstring–tslot-bracket: one or two profiles wide
strengthstring–Plastic parts only. Default balanced; strong for parts under load
templatestring–plate = flat plate with holes; bracket = L-bracket; spacer = spacer/standoff; washer; box = box with optional lift-off lid; for T-slot aluminum extrusion (pick its profile): tslot-bracket = corner br…
thicknessnumber–plate/bracket: thickness (mm)
thumbstring–Leave empty (the ply card fills in a picture).
unitsstring–Units of an STL/OBJ file, which doesn't say (default mm). Use in if the part comes out 25x too small.
wallnumber–box: wall thickness (mm)
widthnumber–plate/bracket: width (mm)

No output schema declared.

No examples provided.

price_cart ~123

Price a cart of several different parts at once (built parts from sizes and/or the customer's files, each with its own options and quantity). ply's card shows them in a grid with each part's picture, quantity, price and the total, and an Order button for all of them. Call again with the whole updated list after any change.

NameTypeReqDescription
partsarrayyesEvery part in the cart (up to 40): a built part (template + sizes) or a file (path from price_file), each with its own material, color, strength and quantity

No output schema declared.

No examples provided.

price_file ~346

Price the customer's 3D file (STL, 3MF, STEP or OBJ) and show it in ply's card. Without a file, shows the card with an upload button (with sourceUrl: the model page to download it from). In ChatGPT, pass a file the customer attached. Pass `path` (from an earlier result) to change options for a file already priced.

NameTypeReqDescription
coatingstring–Resin only: coating (needs sanding)
colorstring–Color name, e.g. black, white, red (default black)
fileobject–A 3D file the customer attached in this chat
fileNamestring–The file's name, with a path
materialstring–Material name or id, e.g. PLA, PETG, ASA, TPU (default PLA).
pathstring–The file's ply path from an earlier price_file result
processstring–fdm = plastic (default); resin = fine detail (miniatures, figurines, smooth looks)
quantityinteger–How many (default 1)
sandingboolean–Resin only: sanded finish
sourceTitlestring–That model's name
sourceUrlstring–The model page the customer picked (they download the file there and drop it in the card)
strengthstring–Plastic parts only. Default balanced; strong for parts under load
unitsstring–Units of an STL/OBJ file, which doesn't say (default mm). Use in if the part comes out 25x too small.

No output schema declared.

No examples provided.

price_model_link ~254

Show a 3D model's page in ply's card with an upload box: the customer opens the link, downloads the file (STL, 3MF, STEP or OBJ) and drops it in for an instant price. ply doesn't download models from any site itself.

NameTypeReqDescription
coatingstring–Resin only: coating (needs sanding)
colorstring–Color name, e.g. black, white, red (default black)
materialstring–Material name or id, e.g. PLA, PETG, ASA, TPU (default PLA).
processstring–fdm = plastic (default); resin = fine detail (miniatures, figurines, smooth looks)
quantityinteger–How many (default 1)
sandingboolean–Resin only: sanded finish
strengthstring–Plastic parts only. Default balanced; strong for parts under load
titlestring–The model's name
unitsstring–Units of an STL/OBJ file, which doesn't say (default mm). Use in if the part comes out 25x too small.
urlstringyesThe model's page

No output schema declared.

No examples provided.

recommend_material ~1,001

Run ply's material advisor ("Help me choose" on plyparts.com) for a part: it may ask up to 2 questions about how the part is used, then recommends a process, material, color and strength. Give either the part's ply `path` (a file) or its template and sizes (a built part).

NameTypeReqDescription
answersarray–The advisor's earlier questions and the customer's answers
armAinteger–tslot-plate: holes along the first arm
armBinteger–tslot-plate: holes along the second arm
cableDiameternumber–tslot-cable: cable bundle diameter (mm)
centerHolestring–tslot-cap: hole to reach the end bolt
cornerRadiusnumber–plate: outside corner radius, 0 = square; box: inside corner radius (mm)
depthnumber–plate: depth (mm)
extraHolesarray–plate: holes at exact spots, x/y = hole center in mm from the plate's center
fileNamestring–The file's name, as in price_file (it can tell the advisor what the part is)
gridColumnsinteger–plate, grid: hole columns
gridRowsinteger–plate, grid: hole rows
gussetstring–tslot-bracket: side gussets
heightnumber–spacer: height; washer: thickness (mm)
holeDiameternumber–plate: diameter of the pattern holes; bracket: hole diameter (0 = no holes) (mm)
holeInsetnumber–plate, corner holes: distance from each edge to the hole center (mm)
holePatternstring–plate: hole layout
holesinteger–tslot-bracket: bolts per leg (1–4)
holesAinteger–bracket: holes in the base leg
holesBinteger–bracket: holes in the upright leg
innerDepthnumber–box: inside depth (mm)
innerDiameternumber–spacer/washer: hole diameter, 0 = solid spacer (mm)
innerHeightnumber–box: inside height (mm)
innerRadiusnumber–bracket: inside corner radius (mm)
innerWidthnumber–box: inside width (mm)
keysstring–tslot-bracket/mount/panel: alignment keys that sit in the slot
legAnumber–bracket: base leg length (mm)
legBnumber–bracket: upright leg length (mm)
lengthnumber–tslot-cover: length (mm)
lidstring–box: lid
outerDiameternumber–spacer/washer: outside diameter (hex: across the flats) (mm)
panelThicknessnumber–tslot-panel: panel thickness (mm)
pathstring–A file's ply path from price_file
plugDepthnumber–tslot-cap: plug length into the slots (mm)
profilestring–T-slot parts: the extrusion (8020-10 = 80/20 10 series 1 in, 8020-15 = 15 series 1.5 in, m20 = 20 mm / 2020)
reachnumber–tslot-panel: overlap onto the panel (mm)
shapestring–spacer/washer: round or hex; tslot-plate: L, T, X, straight or gusset
slotHolesinteger–tslot-mount: bolts into the slot
slotOffsetnumber–tslot-mount: slot line from the plate's center, across (mm)
spanstring–tslot-bracket: one or two profiles wide
templatestring–plate = flat plate with holes; bracket = L-bracket; spacer = spacer/standoff; washer; box = box with optional lift-off lid; for T-slot aluminum extrusion (pick its profile): tslot-bracket = corner br…
thicknessnumber–plate/bracket: thickness (mm)
usestringyesWhat the part is for, in the customer's words (where it's used, heat, water, loads, looks)
wallnumber–box: wall thickness (mm)
widthnumber–plate/bracket: width (mm)

No output schema declared.

No examples provided.

Install

How do I install the ply 3D Printing MCP server?

ply 3D Printing is a hosted endpoint at https://www.plyparts.com/mcp, so there is nothing to install locally. Ready-made configuration for Claude, Cursor, VS Code, Codex and 5 more is on this page, copied from each client's own documentation.

remote · www.plyparts.com

# add to Claude Code
claude mcp add --transport http com-plyparts-ply 'https://www.plyparts.com/mcp'
Common questions

What is the ply 3D Printing MCP server?

ply 3D Printing is an MCP server listed in the public MCP registry as com.plyparts/ply. Custom 3D-printed parts: describe a part, upload a 3D file or pick a model, see a live price, order. This page covers its hosted endpoint (https://www.plyparts.com/mcp).

Is the ply 3D Printing MCP server safe to use?

ply 3D Printing scores 77 out of 100 on VerifyMCP. That is a record of what we were able to check automatically, not an endorsement. The category breakdown on this page shows every signal behind the number, including the ones we could not confirm.

What tools does the ply 3D Printing MCP server expose?

ply 3D Printing exposes 9 tools: make_part, price_file, price_model_link, find_models, recommend_material, and 4 more. Their descriptions and schemas cost roughly 4,034 tokens of context every time the server is loaded.

Does the ply 3D Printing MCP server require authentication?

No. We connected to ply 3D Printing without credentials and it answered, so anything it exposes is reachable by anyone who knows the address.

Is the ply 3D Printing MCP server still maintained?

ply 3D Printing is still listed as active in the MCP registry. We last reached this channel on 5 November 2026. Those dates come from our own scans of the registry and the channel itself, not from anything the publisher announced.