Conversions across 221 color spaces, tested against cited sources: CSS strings, gamut, LUTs
Nothing to run from here
Chalkcast is installed from its publisher's own source and answers where it runs, so this marketplace is not in the path of a single call. There is no address here to send one to, and a panel that pretended otherwise would be showing you an answer we made up. Install it and call it from your own client — the Installation tab has the entry for each one.
93/100
trust score
4
downloads a day
local
runs on your machine
42
downloads in 30d
What it does
Author, render and visually verify Manim math animations from natural language
Quickstart
# 1 — add it to Claude Code
claude mcp add --scope user chalkcast-mcp '--' uvx chalkcast
# 2 — ask your agent for something these tools do
# open_project, inspect_project, close_project and 18 more
Chalkcast costs nothing on mcprush: there is no plan to choose here, no cap to set and nothing mcprush can bill you for.
Publisher
Installation
Where are you running it?
Every route below installs the same thing and ends at the same approval screen. This one runs on your machine: your client starts Chalkcast as a process under your own user, with your files and your network, so the tool surface below is what it can do to your computer rather than to a server somewhere else. Its scan result is on the Security tab — read the surface before you approve it.
Claude Codedeclared by this listing
This is a public server: you run it yourself and this marketplace is not in the path. You need uv (docs.astral.sh/uv): uvx comes with it. Claude Code registers it in one command; --scope user makes it available in every project. The '--' is in quotes so that PowerShell passes it on.
claude mcp add --scope user chalkcast-mcp '--' uvx chalkcastReconnect, or start a new session, and the tools appear in the model’s tool list.
Free on mcprush, and it runs from its publisher’s own package: this marketplace is not in the path, so there is no key of ours to hold and no card to add.
What it writes
One config entry your client uses to start the process locally. A local server runs with your file system and your network, which is why it is priced without metering.
What you approve
21 tools, with what each one reads, writes and reaches shown before you agree — the same list on every route above. Read the tool surface.
Tool surface
What the model actually sees. Descriptions are diffed on every release — see version history.
Read from its source code. A server that builds its tool list when it starts can list more tools than this.
Start a project session and make it the current one (later calls without project_id target it). quality: low (480p) | medium (720p) | high (1080p).
| Parameter | Type | Required | Notes |
|---|---|---|---|
| quality | string | no | — |
| fps | integer | no | — |
| theme | string | no | — |
Current project state: scenes, objects, steps, parameters and open obligations.
| Parameter | Type | Required | Notes |
|---|---|---|---|
| project_id | string | no | — |
Release a project session (default: the current one). Its scenes, objects and steps are discarded and cannot be reopened (rendered files stay on disk, listed in the result). If others are open, the most recently opened becomes current; the result names it.
| Parameter | Type | Required | Notes |
|---|---|---|---|
| project_id | string | no | — |
Append a scene to the project; it becomes the default target of later calls without scene_id. The title is a label for you (it is not drawn: use add_text).
| Parameter | Type | Required | Notes |
|---|---|---|---|
| title | string | no | — |
| project_id | string | no | — |
Declare a continuous scene parameter (e.g. time t). Use it by name in plot expressions or shape anchors (expr='sin(x - t)'), then animate it smoothly with add_step(kind='tween', param=name, value=...). Curves, areas and anchored shapes that use it are redrawn every frame.
| Parameter | Type | Required | Notes |
|---|---|---|---|
| name | string | yes | — |
| value | number | no | — |
| scene_id | string | no | — |
| project_id | string | no | — |
Add a LaTeX equation (math mode, e.g. tex=r'e^{i\\pi}+1=0'). Dirac notation (\\ket{n}, \\bra{n}, \\braket{a}{b}, \\expval{A}) and physics macros work.
| Parameter | Type | Required | Notes |
|---|---|---|---|
| tex | string | yes | — |
| x | number | no | — |
| y | number | no | — |
| color | string | no | — |
| scale | number | no | — |
| scene_id | string | no | — |
| project_id | string | no | — |
Add axes with functions of x. Each function: {'expr': 'sin(x)', 'color': 'YELLOW'}.
| Parameter | Type | Required | Notes |
|---|---|---|---|
| functions | array | no | — |
| x_range | array | no | — |
| y_range | array | no | — |
| x | number | no | — |
| y | number | no | — |
| width | number | no | — |
| height | number | no | — |
| x_label | string | no | — |
| y_label | string | no | — |
| show_numbers | boolean | no | — |
| scene_id | string | no | — |
| project_id | string | no | — |
Add a title/label/callout (plain text, any language). The rendered size is font_size x scale.
| Parameter | Type | Required | Notes |
|---|---|---|---|
| text | string | yes | — |
| x | number | no | — |
| y | number | no | — |
| font_size | number | no | — |
| color | string | no | — |
| scale | number | no | — |
| scene_id | string | no | — |
| project_id | string | no | — |
Add primitive geometry: circle|square|rectangle|triangle|arrow|dot|line, centred at (x, y) (default 0, 0). size (default 1): circle = diameter, square = side, triangle = circumradius (equilateral, apex up, circumcentre at (x, y); the result lists its vertices), dot = 10 x radius (minimum radius…
| Parameter | Type | Required | Notes |
|---|---|---|---|
| shape | string | no | — |
| size | number | no | — |
| x | number | no | — |
| y | number | no | — |
| color | string | no | — |
| width | number | no | — |
| height | number | no | — |
| x1 | number | no | — |
| y1 | number | no | — |
| x2 | number | no | — |
| y2 | number | no | — |
| plot_id | string | no | — |
| at_x | string | no | — |
| at_y | string | no | — |
| scene_id | string | no | — |
| project_id | string | no | — |
Shade the area between a plotted function and the x-axis on [x_min, x_max] (the integral). [x_min, x_max] must lie within the plot's x_range, y = 0 must be on the axes, and the function must be defined and inside y_range there (otherwise an error says what to widen). It follows its plot (move the…
| Parameter | Type | Required | Notes |
|---|---|---|---|
| plot_id | string | yes | — |
| x_min | number | no | — |
| x_max | number | no | — |
| function_index | integer | no | — |
| color | string | no | — |
| opacity | number | no | — |
| scene_id | string | no | — |
| project_id | string | no | — |
Riemann rectangles (left endpoints, fill opacity 0.6, one color) under a plotted function on [x_min, x_max] within the plot's x_range; (x_max - x_min)/dx must be a whole number, y = 0 must be on the axes and the function inside y_range there.
| Parameter | Type | Required | Notes |
|---|---|---|---|
| plot_id | string | yes | — |
| x_min | number | no | — |
| x_max | number | no | — |
| dx | number | no | — |
| function_index | integer | no | — |
| color | string | no | — |
| scene_id | string | no | — |
| project_id | string | no | — |
Append a timed beat. kind: write|transform|highlight|fade|camera_move|wait|tween.
| Parameter | Type | Required | Notes |
|---|---|---|---|
| kind | string | yes | — |
| targets | array | no | — |
| to | string | no | — |
| duration | number | no | — |
| note | string | no | — |
| zoom | number | no | — |
| focus_x | number | no | — |
| focus_y | number | no | — |
| with_previous | boolean | no | — |
| param | string | no | — |
| value | number | no | — |
| scene_id | string | no | — |
| project_id | string | no | — |
Change an existing object in place (only the fields you pass). Use it to reposition, rescale, recolor, retype text/LaTeX, replace plot functions or ranges, or adjust an area/Riemann interval -- no need to rebuild the scene.
| Parameter | Type | Required | Notes |
|---|---|---|---|
| object_id | string | yes | — |
| x | number | no | — |
| y | number | no | — |
| scale | number | no | — |
| color | string | no | — |
| text | string | no | — |
| tex | string | no | — |
| font_size | number | no | — |
| functions | array | no | — |
| x_range | array | no | — |
| y_range | array | no | — |
| width | number | no | — |
| height | number | no | — |
| x_label | string | no | — |
| y_label | string | no | — |
| show_numbers | boolean | no | — |
| size | number | no | — |
| at_x | string | no | — |
| at_y | string | no | — |
| x_min | number | no | — |
Delete an object. If steps or other objects (areas, anchored shapes) depend on it, nothing is removed unless cascade=true, which also removes the dependent objects and takes the removed ids out of steps (a step left with nothing to animate is deleted; other targets of a shared step stay). The…
| Parameter | Type | Required | Notes |
|---|---|---|---|
| object_id | string | yes | — |
| cascade | boolean | no | — |
| scene_id | string | no | — |
| project_id | string | no | — |
Delete one step of the timeline (later steps are renumbered). A with_previous step that was joined to the removed one starts its own beat; it is listed in regrouped_steps.
| Parameter | Type | Required | Notes |
|---|---|---|---|
| step_index | integer | yes | — |
| scene_id | string | no | — |
| project_id | string | no | — |
Verify a scene WITHOUT rendering video (~1-2 s): builds the real Manim objects and measures them -- LaTeX/expression compile errors, off-screen objects, label collisions, curve fidelity (drawn vs true function), legibility, timing.
| Parameter | Type | Required | Notes |
|---|---|---|---|
| scene_id | string | no | — |
| project_id | string | no | — |
Automatically repair measured problems that have a mechanical fix: objects pushed back inside the frame, labels moved to the nearest free spot, curve sampling corrected, too-small text enlarged. Repeats measure->fix up to max_rounds, reports every change, and lists what still needs the author. A…
| Parameter | Type | Required | Notes |
|---|---|---|---|
| scene_id | string | no | — |
| max_rounds | integer | no | — |
| project_id | string | no | — |
Render one scene to video + sampled frames, then run verification lanes.
| Parameter | Type | Required | Notes |
|---|---|---|---|
| scene_id | string | no | — |
| project_id | string | no | — |
Fast single-still preview of a scene's final state. Not a verification (no lanes run: use inspect_render), and the still shows the end state even where the video would not.
| Parameter | Type | Required | Notes |
|---|---|---|---|
| scene_id | string | no | — |
| project_id | string | no | — |
Export the latest render of a scene as a shareable GIF, resampled to width pixels wide at fps (defaults keep GIFs small). Blocked by open error obligations of that render and by edits made since it. Each export is a new
| Parameter | Type | Required | Notes |
|---|---|---|---|
| width | integer | no | — |
| fps | integer | no | — |
| scene_id | string | no | — |
| project_id | string | no | — |
Which providers are present (Manim, LaTeX, ffmpeg, vision) and what degrades without each.
Takes no parameters.
Free
$0 forever
- Every tool, no call limit
- No card, and mcprush charges nothing for it
- Source published under MIT
- Runs on your machine — nothing of it reaches our gateway
- Nothing to cap, because mcprush bills nothing
What counts against your monthly calls
| Tool | Unit | Calls used | Out of the allowance |
|---|
Nothing here is billable: mcprush charges nothing to install Chalkcast or to call it, at any volume.
Call allowance · this installenforced at the gateway
Monthly allowance, in calls
—
—
Alert at 80% · then the tool returns a normal MCP error
Used this month: —
ATrust score 93 / 100
Release 0.1.0 · scanned 28 Oct 2026
Two independent axes, because powerful and malicious are different questions. The grade is threat only. The capability level is blast radius, and it is never a penalty on the grade — it is priced as one subtract-only term in the score, where you can see it.
Threat score100
Client score93
Findings4 threat · 0 capability
Capabilityhigh
Coveragesource
Verificationrepo
Surface digest5e8399134f9bbb5793f8ab8745ca414319ce31f2e5773a5902ac08e2a7205228
Score vectorthreat 100 → client 93
| Term | Level | What it prices | Points |
|---|---|---|---|
| capability-exposure | high | capability blast radius (high) — client exposure if the model is manipulated | −6 |
| verification-discount | repo | publisher verification (public source) — no provenance, but the source is public and inspectable | −1 |
| coverage-honesty | source | inspection depth (source) — how much of the target the scan could see | −0 |
score = clamp(round(threatScore − E_cap − E_ver − E_cov), 0, 100). No model, no opinion, no network call at scoring time: the same methodology version against the same bytes always produces this number, and every line above is a field of the report rather than a summary of it.
What the scan could actually read
A grade is only as meaningful as its coverage, so the scanner publishes its own depth before it publishes its result.
Tool surfaceread
Implementation sourceread
Package metadataread
Live transportnot available
Tools were statically extracted from the published source (21 recovered), not enumerated from a running server. Tool-poisoning, Unicode-smuggling, capability and toxic-flow analysis ran on this inferred surface, but a mis-parsed registration could be missed or mis-attributed, so tool-derived findings are capped below “confirmed”. To grade the real runtime surface, scan the running server: --command "npx -y <package>".
Capability — what it could do if the model were manipulated
Tags derived from each tool’s schema and the implementation, not from what the tool calls itself. high is the level these add up to.
| Tool | Capability tags | Why the tag was assigned |
|---|---|---|
| open_project | no tags | |
| inspect_project | no tags | |
| close_project | no tags | |
| add_scene | no tags | |
| add_parameter | no tags | |
| add_equation | no tags | |
| add_plot | no tags | |
| add_text | no tags | |
| add_shape | no tags | |
| add_area | no tags | |
| add_riemann | no tags | |
| add_step | no tags | |
| update_object | no tags | |
| remove_object | no tags | |
| remove_step | no tags | |
| inspect_render | no tags | |
| fix_scene | no tags | |
| render_scene | no tags | |
| render_frame | no tags | |
| export_gif | no tags | |
| inspect_environment | no tags |
Toxic-flow graph
The lethal trifecta, checked as a graph rather than as a checklist: untrusted input, a sensitive source and an external sink have to meet before there is a path worth worrying about.
The public result for this release does not print the flow graph, so there is nothing to show here. That is not the same as "no paths were found": what the scan did read is above, under coverage.
Supply chain and provenance
Integrityfirst-seen
Surface digest5e8399134f9bbb57
Scanned2026-10-28
This is the first scan of this surface here, so there is nothing yet to compare it against.
Every result on this tab comes from one deterministic pass over the published package — offline, rule by rule, and auditable line by line above. Same methodology version, same bytes, same score.
Release history
Always latest — the install command names no version, so it installs the newest release when it runs; the current release on file is 0.1.0. Pin a release below and the command asks for exactly that one.
0.1.0
undated
latestNo release note was published with this version.
—
no reviews yet
Who can review
One review per account, from a signed-in account that does not publish this listing. Nothing else is asked — you can say what you think before you install it. Publishers can reply once per review, and a review can be edited or deleted by whoever wrote it.
Sign in to write one
Any signed-in account that does not publish Chalkcast can review it, once — before installing it or after. A review from an account that has installed it is marked as one.
No reviews yet
Nobody has reviewed this listing. The rating on the card is the mean of the reviews written here and nothing else, so there is no rating until somebody writes the first — which takes a signed-in account that does not publish it, and nothing else.