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Kiln

PYPI · KILN3D · SCANNED SEP 23

Kiln MCP server for agents: design, slice, print, monitor, and recover physical objects safely.

Available components

−15 this week 29 Trust /100
Trust breakdown (7 categories)

How this component scores in each security and reliability category. Every signal is checked automatically from public evidence about the published package, including repeated runs of it in an isolated sandbox, and we only credit what we can confirm. How we score → Why this is hard to score →

Supply Chain Security50
  • Malware scan not yet available for this package.Unverified
  • No known CVEs affecting this package version or its production dependencies.Pass
  • Runs setuptools.build_meta at install time, a recognised native-build step with no shell scripting around it. View diagnostics → Pass
  • 4 of 50 dependencies flagged as unhealthy. View diagnostics → Partial
Provenance & Transparency48
  • Source repository is publicly reachable at the declared URL. View diagnostics → Pass
  • Provenance check failed: no build-provenance attestation is published. See how to fix → View diagnostics → Fail
  • Clear OSI-approved license (AGPL-3.0-or-later).Pass
  • Actively maintained (last published 34 days ago).Pass
  • Publishes a security disclosure policy (SECURITY.md).Pass
Schema Quality & AI Usability0
  • Schema quality not yet verified: the captured schema was too large for us to store in full, so we will not judge it on a partial copy.Unverified
Stability & Change Management0
  • Stability not yet verified: the captured schema was too large for us to store in full, and comparing a partial copy would report our own trimming as a change.Unverified
Tool Coverage0
  • Tool coverage not yet verified: the captured tool definitions were too large for us to store in full, so we will not judge them on a partial copy.Unverified
Tool Safety0
  • Tool safety not yet verified: the captured tool definitions were too large for us to store in full, and the trim removes the very descriptions this category reads.Unverified
Capabilities100
  • Implements a current MCP spec version (2026-07-28).Pass
  • Supports UI / widget rendering.Pass

Unverified: 4 categories

Categories scored 0 because our sandbox run of this package has not given us the schema these checks need to read. That is a gap on our side rather than a finding about the package, and we only credit what we can confirm, so the score stands at 0 until the capture succeeds. We are working through the fleet, so this normally clears without any action from you. How we score packages →

Install

How do I install the Kiln MCP server?

Kiln runs locally as a PyPI package, launched with uvx kiln3d. Ready-made configuration for Claude, Cursor, VS Code, Codex and 5 more is on this page, copied from each client's own documentation.

pypi · kiln3d

# add to Claude Code
claude mcp add codeofaxel-kiln -- uvx kiln3d
// .cursor/mcp.json
{
  "mcpServers": {
    "codeofaxel-kiln": {
      "command": "uvx",
      "args": [
        "kiln3d"
      ]
    }
  }
}
// .vscode/mcp.json
{
  "servers": {
    "codeofaxel-kiln": {
      "command": "uvx",
      "args": [
        "kiln3d"
      ]
    }
  }
}
# add to Codex CLI
codex mcp add codeofaxel-kiln -- uvx kiln3d
// opencode.json
{
  "$schema": "https://opencode.ai/config.json",
  "mcp": {
    "codeofaxel-kiln": {
      "type": "local",
      "command": [
        "uvx",
        "kiln3d"
      ],
      "enabled": true
    }
  }
}
# add to OpenClaw
openclaw mcp add codeofaxel-kiln --command uvx --arg kiln3d
# ~/.hermes/config.yaml
mcp_servers:
  codeofaxel-kiln:
    command: "uvx"
    args: ["kiln3d"]
// ~/.netclaw/config/netclaw.json
{
  "McpServers": {
    "codeofaxel-kiln": {
      "Transport": "stdio",
      "Command": "uvx",
      "Arguments": [
        "kiln3d"
      ]
    }
  }
}
# add to Vellum
assistant mcp add codeofaxel-kiln -t stdio -c uvx -a kiln3d
// mcp.json
{
  "mcpServers": {
    "codeofaxel-kiln": {
      "command": "uvx",
      "args": [
        "kiln3d"
      ]
    }
  }
}
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.

  • 23 Sept 26 −15
    • Malware scan: pass → unverified security
  • 15 Sept 26 +15
    • Malware scan: unverified → pass security
  • 14 Sept 26 −15
    • Malware scan: pass → unverified security
  • 12 Sept 26 +15
    • Malware scan: unverified → pass security
  • 11 Sept 26 −15
    • Malware scan: pass → unverified security
  • 27 Aug 26 +1

    No change was recorded against any check on this day. Supply Chain Security went from 99 to 100.

  • 26 Aug 26 −1
    • We updated how we score, so this day's move reflects our rubric, not a change to the server See what changed → functional
  • 20 Aug 26 0
    • Malware scan: unverified → pass security
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 23 Sept 2026 · Analysed pypi/kiln3d@1.4.1

Provenance No attestation

The registry publishes no build provenance for this version, so there is nothing to verify.

Result No attestation
Ecosystem pypi

Background: How many MCP packages publish verified provenance →

Install scripts 1 script
Hook Tier Command
build_backend allowlisted setuptools.build_meta

Background: Why install scripts are a supply-chain risk →

Dependencies 50 packages
Packages resolved 50
Stale 3
No linked repository 1
Tree resolution Complete

Background: SBOMs and build attestations, explained →

MCP tools · 468 exposed · ~92,016 tokens partial

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
remove_spool ~36

No description provided.

NameTypeReqDescription
spool_idstringyes

No output schema declared.

No examples provided.

render_model_preview ~192

No description provided.

NameTypeReqDescription
colorstring
file_pathstringyes
heightinteger
widthinteger

No output schema declared.

No examples provided.

repair_mesh ~543

No description provided.

NameTypeReqDescription
close_holesboolean
file_pathstringyes
output_pathstring
weld_tolerancestring

No output schema declared.

No examples provided.

repair_mesh_advanced ~247

No description provided.

NameTypeReqDescription
close_holesboolean
file_pathstringyes
output_pathstring
weld_tolerancestring

No output schema declared.

No examples provided.

report_printer_overage ~216

No description provided.

NameTypeReqDescription
active_printer_count
subscription_item_idstringyes

No output schema declared.

No examples provided.

reprint_with_material ~462

No description provided.

NameTypeReqDescription
ams_mapping
extra_overrides
file_pathstringyes
material_idstringyes
printer_id
printer_name
use_ams

No output schema declared.

No examples provided.

rescale_model ~355

No description provided.

NameTypeReqDescription
file_pathstringyes
max_dimension_mm
scale_factor
scale_x
scale_y
scale_z
target_height_mm

No output schema declared.

No examples provided.

reslice_with_overrides ~450

No description provided.

NameTypeReqDescription
auto_centerboolean
input_pathstringyes
output_dir
overrides
printer_id
slicer_path

Structured output declared, but exposes no named fields.

No examples provided.

resolve_filament_profile ~223

No description provided.

NameTypeReqDescription
material_or_brandstringyes
printer_idstring

No output schema declared.

No examples provided.

resolve_model_source ~179

No description provided.

NameTypeReqDescription
file_pathstringyes

No output schema declared.

No examples provided.

restart_server ~298

No description provided.

NameTypeReqDescription
clean_envboolean

No output schema declared.

No examples provided.

resume_print ~190

No description provided.

NameTypeReqDescription
forceboolean
printer_name

No output schema declared.

No examples provided.

retrieve_credential ~37

No description provided.

NameTypeReqDescription
credential_idstringyes

No output schema declared.

No examples provided.

retry_print_with_fix ~505

No description provided.

NameTypeReqDescription
custom_overrides
material
model_pathstringyes
preview_token
printer_id
printer_name
skip_diagnosisboolean
skip_validationboolean

No output schema declared.

No examples provided.

revenue_dashboard ~55

No description provided.

NameTypeReqDescription
daysinteger

No output schema declared.

No examples provided.

rollback_design_version ~192

No description provided.

NameTypeReqDescription
design_idstringyes
to_version_idstringyes

No output schema declared.

No examples provided.

rollback_firmware ~111

No description provided.

NameTypeReqDescription
componentstringyes

No output schema declared.

No examples provided.

rollback_printer_firmware ~85

No description provided.

NameTypeReqDescription
printer_namestringyes
target_version

No output schema declared.

No examples provided.

rotate_encryption_key ~240

No description provided.

NameTypeReqDescription
directorystringyes
dry_runboolean
new_passphrasestringyes
old_passphrasestringyes
patternstring

No output schema declared.

No examples provided.

rotate_model ~320

No description provided.

NameTypeReqDescription
input_pathstringyes
output_path
rotation_xnumber
rotation_ynumber
rotation_znumber

No output schema declared.

No examples provided.

route_print_job ~137

No description provided.

NameTypeReqDescription
file_pathstringyes
materialstringyes
priority
quality

No output schema declared.

No examples provided.

run_benchmark ~182

No description provided.

NameTypeReqDescription
model_pathstringyes
printer_id
printer_name
profile_path
skip_validationboolean

No output schema declared.

No examples provided.

run_calibrate ~105

No description provided.

NameTypeReqDescription
printer_id
printer_name

No output schema declared.

No examples provided.

run_quick_print ~520

No description provided.

NameTypeReqDescription
ams_mapping
material
model_pathstringyes
printer_id
printer_name
profile_path
skip_validationboolean
use_ams

No output schema declared.

No examples provided.

run_reslice_and_print ~566

No description provided.

NameTypeReqDescription
ams_mapping
material
model_pathstringyes
overrides
printer_id
printer_name
profile_path
skip_validationboolean
slicer_path
use_ams

No output schema declared.

No examples provided.

safety_audit ~157

No description provided.

NameTypeReqDescription
action
limitinteger
tool_name

No output schema declared.

No examples provided.

safety_settings ~55

No description provided.

Input schema present but exposes no named parameters.

No output schema declared.

No examples provided.

safety_status ~69

No description provided.

Input schema present but exposes no named parameters.

No output schema declared.

No examples provided.

save_agent_note ~200

No description provided.

NameTypeReqDescription
keystringyes
printer_name
scopestring
ttl_seconds
valuestringyes

No output schema declared.

No examples provided.

save_decoration ~323

No description provided.

NameTypeReqDescription
content_datastring
content_typestring
depth_mmnumber
image_stylestring
materialstring
modestring
model_pathstringyes
namestringyes
source_pathstring
tagsstring

No output schema declared.

No examples provided.

save_design_version ~533

No description provided.

NameTypeReqDescription
brief_idstring
design_idstringyes
intent_hashstring
notesstring
parameters
parent_version_idstring
promptstring
provenance
scad_sourcestringyes
stl_pathstring

No output schema declared.

No examples provided.

save_print_checkpoint ~285

No description provided.

NameTypeReqDescription
bed_temp
fan_speed_pct
filament_used_mm
flow_rate_pct
hotend_temp
job_idstringyes
layer_number
printer_namestringyes
z_height

No output schema declared.

No examples provided.

save_shipping_profile ~188

No description provided.

NameTypeReqDescription
consent_to_storeboolean
namestringyes
overwriteboolean
set_defaultboolean
shipping_addressobjectyes

No output schema declared.

No examples provided.

scale_mesh_to_fit ~279

No description provided.

NameTypeReqDescription
file_pathstringyes
max_x_mmnumber
max_y_mmnumber
max_z_mmnumber
output_pathstring
printer_idstring

No output schema declared.

No examples provided.

search_all_models ~285

No description provided.

NameTypeReqDescription
pageinteger
per_pageinteger
querystringyes
sortstring
sources

No output schema declared.

No examples provided.

search_cached_models ~102

No description provided.

NameTypeReqDescription
limitinteger
query
source
tags

No output schema declared.

No examples provided.

search_design_templates ~132

No description provided.

NameTypeReqDescription
category_filterstring
max_resultsinteger
querystringyes

No output schema declared.

No examples provided.

search_design_versions ~116

No description provided.

NameTypeReqDescription
limitinteger
querystringyes

No output schema declared.

No examples provided.

search_material_catalog ~87

No description provided.

NameTypeReqDescription
querystringyes

No output schema declared.

No examples provided.

search_models ~168

No description provided.

NameTypeReqDescription
pageinteger
per_pageinteger
querystringyes
sortstring

No output schema declared.

No examples provided.

select_printer_variant ~260

No description provided.

NameTypeReqDescription
printer_modelstringyes
variant_idstring

No output schema declared.

No examples provided.

send_gcode ~222

No description provided.

NameTypeReqDescription
commandsstringyes
dry_runboolean

No output schema declared.

No examples provided.

set_autonomy_level ~97

No description provided.

NameTypeReqDescription
levelintegeryes

No output schema declared.

No examples provided.

set_fan ~390

No description provided.

NameTypeReqDescription
nodestring
percentinteger

No output schema declared.

No examples provided.

set_leveling_policy ~130

No description provided.

NameTypeReqDescription
enabledboolean
gcode_commandstring
max_hoursnumber
max_printsinteger
printer_name

No output schema declared.

No examples provided.

set_material ~174

No description provided.

NameTypeReqDescription
color
materialstringyes
printer_namestringyes
spool_id
tool_indexinteger

No output schema declared.

No examples provided.

set_printer_light ~137

No description provided.

NameTypeReqDescription
modestring
nodestring

No output schema declared.

No examples provided.

set_speed_profile ~135

No description provided.

NameTypeReqDescription
profilestringyes

No output schema declared.

No examples provided.

set_temperature ~280

No description provided.

NameTypeReqDescription
bed_temp
printer_name
tool_temp

No output schema declared.

No examples provided.

simplify_mesh_model ~213

No description provided.

NameTypeReqDescription
file_pathstringyes
output_pathstring
target_rationumber

No output schema declared.

No examples provided.

Common questions

What is the Kiln MCP server?

Kiln is an MCP server listed in the public MCP registry as io.github.codeofaxel/kiln. Kiln MCP server for agents: design, slice, print, monitor, and recover physical objects safely. This page covers its PyPI package (kiln3d).

Is the Kiln MCP server safe to use?

Kiln scores 29 out of 100 on VerifyMCP. We found no known CVEs affecting it as of 23 September 2026. 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.

Is the Kiln MCP server still maintained?

Kiln is still listed as active in the MCP registry. We last reached this channel on 23 September 2026. Those dates come from our own scans of the registry and the channel itself, not from anything the publisher announced.

What licence is the Kiln MCP server under?

Kiln declares the AGPL-3.0-or-later licence, which is OSI-approved. That covers the source only, and says nothing about the cost of any service it calls.