PrintPal
REMOTE · PRINTPAL.IO
3D printing: printable models, calculators, troubleshooting wiki, build guides, AI 3D + CAD design.
Available components
Last scanned (17 hours ago)
Scores higher than 64% of remote servers
Reachable. Last reached 23 Oct 2026.
Category Design and Media
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 Security74
- The endpoint's TLS certificate is valid, in date, and uses a strong key. View diagnostics → Pass
- No authorisation is required to call this server. Every tool declares its destructiveHint and none is destructive, so open access doesn't expose one. See how to fix → View diagnostics → Partial
- HTTPS is enforced; there's no plaintext access path. View diagnostics → Pass
- HSTS check failed: the Strict-Transport-Security header is absent. See how to fix → View diagnostics → Fail
- DNSSEC check failed: this domain isn't protected by DNSSEC. See how to fix → View diagnostics → Fail
Transport & Reachability100
- Verified streamable-http transport via a live MCP handshake. View diagnostics → Pass
Schema Quality & AI Usability77
- 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 2624 tokens (~145/item across 18 items; 16 tools + 2 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 Management23
- Stability observed for 7 of 30 days with no destabilising changes; credit accrues until the full window elapses.Partial
Tool Coverage83
- 100% of tools have a non-trivial description (not blank, and not just the tool's name).Pass
- 41% of tool parameters carry a description.Partial
- Structured output schemas are declared (19% of tools); any adoption earns full credit.Pass
Tool Safety100
- No prompt-injection markers were found in the server instructions, tool names or descriptions we captured.Pass
- We read all 16 captured tool definition(s), and no name or description among them implies an irreversible operation.Pass
- An AI judge read all 18 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
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.
- 22 Oct 26 +1
No change was recorded against any check on this day. Stability & Change Management went from 17 to 20. That category is still filling its 30-day observation window: 5 days of observed history at the previous scan, 6 at this one. The score rises as the window fills, whether or not the server changes.
- 19 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.
- 17 Oct 26 +1
- Stability: unverified → 0.03 ▲ functional
- 16 Oct 26 70
First indexed and scored.
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 23 Oct 2026 · Probed https://printpal.io/mcp
TLS valid
Negotiated TLS 1.3 with TLS_AES_128_GCM_SHA256 .
| Subject | Issuer | Valid from | Valid until | Key | Signature | Serial |
|---|---|---|---|---|---|---|
| CN=printpal.io | CN=WE1,O=Google Trust Services,C=US | 17 Sept 2026 | 16 Dec 2026 | ECDSA 256 | ECDSA-SHA256 | 8d804e9411e26abb0e0ab070d8fbe3fc |
| SANs: printpal.io, *.printpal.io | ||||||
| CN=WE1,O=Google Trust Services,C=US (CA) | CN=GTS Root R4,O=Google Trust Services LLC,C=US | 13 Dec 2023 | 20 Feb 2029 | ECDSA 256 | ECDSA-SHA384 | 7ff31977972c224a76155d13b6d685e3 |
| CN=GTS Root R4,O=Google Trust Services LLC,C=US (CA) | CN=GlobalSign Root CA,OU=Root CA,O=GlobalSign nv-sa,C=BE | 15 Nov 2023 | 28 Jan 2028 | ECDSA 384 | SHA256-RSA | 7fe530bf331343bedd821610493d8a1b |
Background: What to check on a remote MCP endpoint →
DNSSEC insecure
Validation of printpal.io. — Not signed
| Zone | DS | Keys | Algorithms | Outcome |
|---|---|---|---|---|
| . | trust_anchor | 20326, 38696 | 8, 8 | Verified |
| io. | present | 38690, 57355 | 8, 8 | Verified |
| printpal.io. | 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 |
Background: How OAuth 2.1 works in the 2026 MCP spec →
Transports 2 probes
| Transport | URL | Outcome | Status | Location |
|---|---|---|---|---|
| streamable-http | https://printpal.io/mcp | Verified | 200 | |
| http (plaintext) | http://printpal.io/mcp | HTTPS enforced | 301 | https://printpal.io/mcp |
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 →
calculate_filament_usage Filament weight ⇄ length ⇄ cost ~209
Convert filament grams to metres (and back), compute volume and cost, and estimate how much is left on a spool from its gross weight. Knows densities for PLA, PETG, ABS, ASA, TPU, Nylon, PC, CF blends. Give either `grams` or `meters`.
| Name | Type | Req | Description |
|---|---|---|---|
| density_g_cm3 | number | – | Override density if known. |
| diameter_mm | number | – | – |
| empty_spool_weight_grams | number | – | Weight of the empty spool (typ. 130–250 g). |
| grams | number | – | – |
| material | string | – | pla, petg, abs, asa, tpu, nylon, pc, pla-cf, petg-cf, pa-cf … |
| meters | number | – | – |
| spool_gross_weight_grams | number | – | Weight of spool + remaining filament, to estimate what is left. |
| spool_price_usd | number | – | – |
| spool_weight_kg | number | – | – |
No output schema declared.
No examples provided.
calculate_layer_heights Layer height magic numbers ~146
Compute the Z-axis "magic number" layer heights for a printer from its stepper step angle, microstepping and lead-screw pitch/starts, filtered to what suits the nozzle. Defaults match most Ender/Prusa-style printers (1.8°, 1/16, T8 2 mm × 4 starts → 0.04 mm steps).
| Name | Type | Req | Description |
|---|---|---|---|
| lead_screw_pitch_mm | number | – | – |
| lead_screw_starts | integer | – | – |
| max_layer_height_mm | number | – | – |
| microstepping | integer | – | – |
| nozzle_diameter_mm | number | – | – |
| step_angle_degrees | number | – | – |
No output schema declared.
No examples provided.
calculate_print_cost Calculate 3D print cost ~252
Estimate what an FDM print costs (material, electricity, machine wear, labor, failure allowance) and a suggested selling price. Needs the print weight in grams and time in hours from the slicer; all other inputs have sensible defaults (1 kg spool at $20, 120 W printer, $0.12/kWh, 5% failures).
| Name | Type | Req | Description |
|---|---|---|---|
| electricity_cost_per_kwh | number | – | – |
| failure_rate_percent | number | – | – |
| labor_minutes | number | – | Hands-on time: slicing, removal, post-processing. |
| labor_rate_per_hour | number | – | – |
| markup_percent | number | – | Profit markup to compute a selling price. |
| print_time_hours | number | yes | Print time in hours (e.g. 3.5). |
| print_weight_grams | number | yes | Filament used, from the slicer. |
| printer_cost_usd | number | – | Printer purchase price, for depreciation. 0 to skip. |
| printer_lifespan_hours | number | – | – |
| printer_power_watts | number | – | – |
| quantity | integer | – | – |
| spool_price_usd | number | – | – |
| spool_weight_kg | number | – | – |
No output schema declared.
No examples provided.
calculate_volumetric_flow Volumetric flow / max speed check ~180
Check whether a hotend can keep up: volumetric flow (mm³/s) = layer height × line width × speed, compared against the hotend limit, plus the maximum safe speed. Accepts a hotend preset name (stock, v6, bambu, volcano, rapido, high-flow, goliath…) or an explicit max flow.
| Name | Type | Req | Description |
|---|---|---|---|
| hotend | string | – | Preset: stock, v6, ender3, prusa-mk3, prusa-mk4, bambu, volcano, rapido, dragon-hf, high-flow, chc-pro, goliath, voron |
| layer_height_mm | number | – | – |
| line_width_mm | number | – | – |
| max_volumetric_flow_mm3_s | number | – | – |
| print_speed_mm_s | number | yes | – |
No output schema declared.
No examples provided.
check_3d_generation Check AI 3D generation status / get download ~65
Poll a PrintPal AI generation started with `generate_3d_model` in API-key mode. Returns status (queued/processing/completed/failed) and, when completed, a time-limited download URL for the mesh.
| Name | Type | Req | Description |
|---|---|---|---|
| generation_uid | string | yes | – |
No output schema declared.
No examples provided.
design_parametric_cad Design a parametric part with the AI CAD agent ~189
For mechanical / functional parts with exact dimensions — brackets, enclosures, adapters, gears, bins, knobs, mounts — open PrintPal's AI CAD agent with a ready-to-run brief. The agent writes editable OpenSCAD with parameter sliders, live 3D preview and STL/3MF/STEP export. This tool improves the user's description into a precise CAD brief (dimensions, tolerances, mounting, print orientation) and returns the link; the user clicks it to generate.
| Name | Type | Req | Description |
|---|---|---|---|
| description | string | yes | What the part is and what it must fit/do. |
| dimensions | string | – | Known dimensions in mm, e.g. "60 x 40 x 20 mm, M3 holes 50 mm apart". |
| export_format | string | – | – |
| material | string | – | Intended filament (affects tolerances), e.g. PLA, PETG, TPU. |
No output schema declared.
No examples provided.
fetch Fetch a PrintPal item ~121
Fetch the full content of a PrintPal item returned by `search` (or any id of the form `model:<uid>`, `tool:<slug>`, `wiki:<slug>`, `doc:<slug>`, `resource:<slug>`, `project:<slug>`, `course:<slug>`). Returns the complete text (article body, transcript, build steps, BOM, model description and files) plus the canonical URL for citation.
| Name | Type | Req | Description |
|---|---|---|---|
| id | string | yes | Item id from `search`, e.g. "wiki:stringing-and-oozing". |
| Name | Type | Req | Description |
|---|---|---|---|
| id | string | yes | – |
| metadata | object | – | – |
| text | string | yes | – |
| title | string | yes | – |
| url | string | yes | – |
No examples provided.
find_3d_printing_tool Find a PrintPal tool or calculator ~181
Recommend the right free PrintPal browser tool for a task: print cost / resin cost / layer height (magic numbers) / E-steps / flow rate / volumetric flow / filament spool / drying / shrinkage / Vref / Etsy profit calculators; generators for lithophanes, vases, name plates, 3D text, QR codes, bins, puzzles, mold boxes, flexi models, fidget clickers, Desk Pal, terrain maps, Minecraft maps; mesh repair, model splitter, converter, viewer, G-code viewer, AMS/multicolor painters; AI generators. Returns matching tools with links. Pass an empty task to list every tool.
| Name | Type | Req | Description |
|---|---|---|---|
| limit | integer | – | – |
| task | string | – | What the user is trying to do, e.g. "split a big model to fit my bed". |
No output schema declared.
No examples provided.
generate_3d_model Generate a 3D model with AI (text or image → STL/GLB/OBJ) ~239
Turn a text prompt or an image into a print-ready 3D mesh (STL/GLB/OBJ geometry) with PrintPal's AI generator. Without a PrintPal API key this returns a link that opens the generator on printpal.io with the prompt prefilled; nothing is generated until the user clicks it. With an API key header (`Authorization: Bearer pp_live_…`) it submits the job to the user's own account, spends that account's credits, and returns a `generation_uid` that `check_3d_generation` accepts. Suited to organic/sculptural objects (figurines, animals, props); exact-dimension mechanical parts are handled by `design_parametric_cad`.
| Name | Type | Req | Description |
|---|---|---|---|
| format | string | – | – |
| image_url | string | – | Optional public PNG/JPEG/WebP URL for image-to-3D (API-key mode only). |
| prompt | string | yes | What to generate, e.g. "low-poly fox figurine, sitting". |
| quality | string | – | default/high/ultra for text or image; super*/superplus* tiers are image-only high-res. |
No output schema declared.
No examples provided.
get_3d_model Get 3D model details ~87
Get full details for one PrintPal model by uid: description, license, file formats, author, stats, and the page URL to download it. Accepts a uid from `search_3d_models` results or a printpal.io/model/<uid> URL.
| Name | Type | Req | Description |
|---|---|---|---|
| uid | string | yes | Model uid from search results or a printpal.io/model/<uid> URL. |
No output schema declared.
No examples provided.
get_build_guide Get a build guide (steps, BOM, files) ~85
Read a full PrintPal build guide by slug: summary, bill of materials with quantities and links, downloadable files (STL/3MF/code), every build step, callouts and code blocks. Use when the user wants to actually follow or adapt a project.
| Name | Type | Req | Description |
|---|---|---|---|
| slug | string | yes | Project slug from search results or a printpal.io/projects/<slug> URL. |
No output schema declared.
No examples provided.
get_pricing_and_plans PrintPal pricing, credits & plans ~72
Explain what is free on PrintPal, how AI generation credits and the CAD agent are priced, API access and the on-demand 3D printing service — with links to sign up, buy credits or subscribe. Call when the user asks about cost, limits, subscriptions or how to get more generations.
Input schema present but exposes no named parameters.
No output schema declared.
No examples provided.
search Search PrintPal ~110
Search everything on PrintPal for a 3D-printing query: community 3D models, free tools and calculators, wiki troubleshooting articles, OpenSCAD/AI-CAD docs, video tutorials, build guides and Academy courses. Returns ids accepted by `fetch` for the full content. Suited to general 3D printing questions such as "why is my first layer not sticking", "PETG temperature" or "3D printed phone stand".
| Name | Type | Req | Description |
|---|---|---|---|
| query | string | yes | Natural-language search query. |
| Name | Type | Req | Description |
|---|---|---|---|
| results | array | yes | – |
No examples provided.
search_3d_models Search 3D models to print ~152
Find printable 3D models (STL/3MF/OBJ) in the PrintPal community library by keyword — e.g. "articulated dragon", "headphone stand", "Raspberry Pi 5 case". Returns cards with thumbnail, author, tags, likes and a link to the model page where the files can be downloaded. Searches existing uploads only; new models are made by `generate_3d_model` (AI mesh) or `design_parametric_cad` (exact dimensions).
| Name | Type | Req | Description |
|---|---|---|---|
| category | string | – | Optional category filter. |
| limit | integer | – | – |
| query | string | yes | What the user wants to print, 1–6 words works best. |
| Name | Type | Req | Description |
|---|---|---|---|
| count | integer | yes | – |
| explore_url | string | – | – |
| generate_url | string | – | – |
| query | string | yes | – |
| results | array | yes | – |
No examples provided.
search_build_guides Search build guides & projects ~153
Find step-by-step PrintPal build guides: Arduino/ESP32 electronics + 3D-printed enclosures, robots, functional prints, printer mods, STEM classroom projects, props and toys. Each result lists difficulty, time, cost, part/file/step counts. Filter by category (electronics-robotics, functional-prints, home-workshop, stem-education, printer-mods, art-props, toys-games) or difficulty (beginner, intermediate, advanced). Leave query empty to browse featured guides.
| Name | Type | Req | Description |
|---|---|---|---|
| category | string | – | Category slug or name. |
| difficulty | string | – | – |
| limit | integer | – | – |
| query | string | – | – |
| sort | string | – | – |
No output schema declared.
No examples provided.
search_learning_resources Search guides, videos & courses ~107
Search PrintPal's how-to content: the vendor-neutral 3D printing wiki (print quality, filaments, slicer settings, maintenance, error codes, safety), OpenSCAD + AI-CAD docs, short video tutorials with transcripts, and free Academy courses with certificates. Use `type` to narrow. Results include ids accepted by `fetch` for the full article text.
| Name | Type | Req | Description |
|---|---|---|---|
| limit | integer | – | – |
| query | string | yes | – |
| type | string | – | – |
No output schema declared.
No examples provided.
How do I install the PrintPal MCP server?
PrintPal is a hosted endpoint at https://printpal.io/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 · printpal.io
claude mcp add --transport http io-printpal-printpal 'https://printpal.io/mcp'
What is the PrintPal MCP server?
PrintPal is an MCP server listed in the public MCP registry as io.printpal/printpal. 3D printing: printable models, calculators, troubleshooting wiki, build guides, AI 3D + CAD design. This page covers its hosted endpoint (https://printpal.io/mcp).
Is the PrintPal MCP server safe to use?
PrintPal scores 73 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 PrintPal MCP server expose?
PrintPal exposes 16 tools: search, fetch, search_3d_models, get_3d_model, find_3d_printing_tool, and 11 more. Their descriptions and schemas cost roughly 2,348 tokens of context every time the server is loaded.
Does the PrintPal MCP server require authentication?
No. We connected to PrintPal without credentials and it answered, so anything it exposes is reachable by anyone who knows the address.
Is the PrintPal MCP server still maintained?
PrintPal is still listed as active in the MCP registry. We last reached this channel on 23 October 2026. Those dates come from our own scans of the registry and the channel itself, not from anything the publisher announced.