Add an aligned dimension annotation.

Add an angular dimension annotation.

Add a add_auxiliary_view to a drawing.

Add baseline dimensions.

Add symbol annotation add_center_line.

Add symbol annotation add_center_mark.

Add a component reference to an assembly.

Add a coincident constraint.

Add a concentric constraint.

Add a equal constraint.

Add a fixed constraint.

Add a horizontal constraint.

Add a midpoint constraint.

Add a parallel constraint.

Add a perpendicular constraint.

Add a symmetric constraint.

Add a tangent constraint.

Add a vertical constraint.

Add continued dimensions.

Add a coordinate grid using the provided extent and spacing.

Add a add_detail_view to a drawing.

Add a diameter dimension.

Add a dimension_angular constraint.

Add a dimension_diameter constraint.

Add a dimension_linear constraint.

Add a dimension_radial constraint.

Add an explode step to an exploded view.

Add symbol annotation add_gdt_frame.

Add a leader annotation.

Add a simple map legend annotation listing domain layers or categories.

Add a linear dimension annotation.

Add a multi-line text annotation.

Add a multileader annotation.

Add a north arrow symbol annotation for a map drawing.

Add an ordinate dimension.

Add a radius dimension.

Add a simple scale bar annotation to a map drawing.

Add a add_section_view to a drawing.

Add symbol annotation add_surface_finish_symbol.

Add a single-line text annotation.

Add a add_view to a drawing.

Add symbol annotation add_weld_symbol.

Return a simple explode animation plan.

Apply a stored thesis/map template to an existing drawing and persist layout/export metadata.

Create polar array copies around a center. Angle is in radians and includes the source entity.

Create rectangular array copies using row and column spacing in the current units.

Attach a GeoTIFF on disk to the session as a raster basemap layer. Returns the assigned layer id and parsed metadata. Use list_raster_layers / render_raster_layer_png afterwards.

Activate an already-open AutoCAD document by its exact name or full path and update the binding to that document. Does not open files. Use autocad_list_documents to identify the target.

Bind this MCP server to a COM-reachable AutoCAD application window/process and document. Use a decimal windowHandle and document name/full path returned by status/list calls; omit them to select the current target. activate defaults to true and activates the selected document; false only establishes the binding without activating it. Later commands reject if the bound document is no longer active. COM may not expose every same-version AutoCAD process.

Clear this MCP server's AutoCAD binding. Does not close AutoCAD, close a document, or discard drawing changes.

Read 1–50 AutoCAD system variables from the live document, for example CMDACTIVE, CMDNAMES, CLAYER or INSUNITS. Use readback to verify command effects; an idle state alone does not prove command success.

List COM-reachable AutoCAD applications and their open documents. Returns data.applications and data.documents with window/process identity for target selection. COM may not expose every same-version AutoCAD process.

List layers from the live AutoCAD document through COM, respecting the current application/document binding. Separate from the internal CAD session's list_layers.

List entities from the live AutoCAD document's ModelSpace, respecting the current binding. Optional filters: layer, objectName, limit. Separate from the internal CAD session's list_entities.

Submit a raw command to the live AutoCAD document. Rejects a busy document or a bound document that is no longer active. Example: _.ZOOM _E. waitForIdle defaults to false; true polls for idle for timeoutMs (1000–30000 ms) after the COM SendCommand call returns. A separate 45-second bridge timeout bounds blocking COM calls. Result state is submitted, idle_observed or timeout; none proves semantic command success. timeout is an MCP error with result data. Query intended results afterward. Submission is not retried; after an error or timeout do not resend before inspecting the drawing.

Inspect a running AutoCAD application through COM: window/process identity, current binding, active document and idle state. This does not establish a persistent binding or operate on the internal CAD session.

Generate summary PDF files for one or more drawings and write them into an output directory.

Generate SVG files for one or more drawings and write them into an output directory.

Start a nested editing transaction; pair with commit_transaction or rollback_transaction.

intersect two 3D solids and return a simplified composite result.

subtract two 3D solids and return a simplified composite result.

union two 3D solids and return a simplified composite result.

Create a simple chamfer line between two lines.

Create a simplified chamfered copy of a solid.

Check if minimum distance meets a clearance threshold. Accepts entity ids or assembly component ids; use assembly_id to scope component lookup.

Check component interference using transformed component bounding boxes.

Commit the innermost active transaction.

Estimate cut/fill volume inside a polygon from enclosed elevated sample points and a base elevation.

Estimate surface volume from elevated point samples and a representative cell area.

Sample elevated points along a profile line and compute the section area against a baseline elevation.

Create a circular arc: centre (cx,cy), radius, startAngle and endAngle in radians (counterclockwise from +X; mathematical Y-up). Radius uses unit (default mm). Stored as coords [cx,cy,r,startAngle,endAngle] in mm.

Create an empty assembly.

Create a block definition from entity ids.

Create a study boundary or management zone polygon with domain metadata.

Create a box solid at origin with width, height, and depth.

Create a circle with centre (cx,cy) and radius. Lengths use unit (default mm).

Create a frustum or cone solid.

Create a vertical cylinder solid.

Create a drawing sheet.

Create an ellipse with radii and rotation.

Create an exploded view definition for an assembly.

Create a named group from entity ids.

Create a named layer with optional color (e.g. #ff0000). Layers are keyed by name; default geometry layer is "0".

Create a line from (x1,y1) to (x2,y2). Lengths use unit (default mm).

Create a map-oriented drawing layout using current project extent and drawing scale metadata.

Create a monitoring well point with optional depth and screened interval metadata.

Create a point at (x, y). Coordinates are converted from unit (default mm) to internal mm. Optional layer is a layer name (created if missing).

Create a polygon path from vertices. closed selects closed vs open stroke in preview (stored on entity properties). Points use unit (default mm).

Create a polyline. If closed is true, stroke is closed in SVG preview. Points use unit (default mm).

Create a prism from a 2D profile entity and height.

Create a profile line used for section sampling and resource/environment transects.

Axis-aligned rectangle: corner (x,y), width, height, optional cornerRadius. Lengths use unit (default mm). Y increases upward; (x,y) is the lower-left corner. Stored as coords [x,y,width,height] in mm; cornerRadius in properties.

Create a simplified revolved solid from a 2D profile around an axis.

Create a resource/environment sampling point with optional label, elevation, and attribute metadata.

Create a sphere solid.

Create a control-point spline entity.

Create a table annotation.

Create a torus solid.

Create a viewport entity.

Define an attribute on a block definition.

Remove an entity by id.

Delete a layer by name. Entities on that layer are reassigned to the default layer 0.

Create a simplified drafted copy of a solid.

Report whether LibreDWG's dwg2dxf / dxf2dwg binaries are available on PATH so import_dwg / export_dwg can actually convert. Returns the resolved binary paths when present.

Return a block definition for editing.

Explode an inserted block group back into loose entities.

Export entities to 3MF-like text.

Export the current 2D scene to DWG by writing a DXF and converting via LibreDWG's dxf2dwg. Returns base64 DWG bytes; pass path to also write to disk. Run dwg_tools_status to confirm dxf2dwg is installed.

Export 2D entities to DXF (internal mm). Optional entity_ids limits which entities are written.

Export 2D entities to a GeoJSON FeatureCollection while preserving layer and properties metadata.

Export entities to GLTF-like text.

Export entities to IGES-like text.

Export entities to OBJ-like text.

Export 2D entities as a zipped ESRI Shapefile package and optionally write it to disk.

Export entities to STEP-like text.

Export entities to STL-like text.

Export entities to SVG-like text.

Extend a line-like entity by 20 percent.

Create a simple arc fillet between two lines using their intersection midpoint.

Create a simplified filleted copy of a solid.

Return entities assigned to a specific layer name.

Find entities by direct field or property-bag value using exact matching.

Find entities whose bounding boxes intersect the given region.

Generate a minimal PDF summary for a drawing.

Generate SVG for selected entities or the full scene.

Report the current 3D geometry backend. Returns one of: { backend: "occt", available: true, version? } when OpenCascade.js is loaded, { backend: "occt-error", available: false, reason } when load failed, or { backend: "mock", available: false, reason } when running with the lightweight fallback. Use this to verify whether STEP/STL/IGES/GLTF tools are running on real OCCT or on stubbed geometry.

Compute a bounding box for all entities or a selected subset.

Measure length or perimeter for a 2D entity in internal millimetres.

Return simplified edge ids for a solid.

Return one entity record by id.

Get the entity type string for a specific entity id.

Return simplified face ids for a solid.

Return a simplified face normal for an axis-aligned face id.

Alias for listing all layers.

Return mass properties based on simplified volume and material density.

Get a parameter by name.

Return current project georeferencing metadata.

Return current project metadata and scene counts.

Return one raster layer record by id.

Return simplified brep-like topology for a solid.

Return solid bbox corner vertices.

Import CSV rows into point entities for sampling points or monitoring wells while preserving tabular attributes.

Import DWG by piping through LibreDWG's dwg2dxf. Provide either path (DWG on disk) or base64 content. Falls back with an error if dwg2dxf is not installed (run dwg_tools_status to check).

Import DXF content (UTF-8 text or base64) into the scene: ensures layers exist and adds LINE, CIRCLE, ARC, POINT, LWPOLYLINE, and 2D POLYLINE entities (mm; arcs as radians internally).

Import GeoJSON FeatureCollection data into point, line, polyline, and polygon entities.

Read a GeoTIFF file and return width / height / sample format / bbox / origin / resolution / CRS without attaching it to the session. Use attach_raster_layer to keep it as a session basemap.

Import IGES content.

Import OBJ content.

Import PDF_AS_UNDERLAY content.

Import ESRI Shapefile geometry and DBF attributes into point, line, polyline, and polygon entities.

Import STEP content.

Import STL content.

Import SVG content.

Insert a block definition by cloning its member entities.

List block definitions.

List entities. Optional filter: { kind or type?, layer?, ids? } — kind/type is an EntityType string or array (point, line, circle, arc, rectangle, polygon, polyline).

List entities tagged with a domain kind such as sampling_point, monitoring_well, or profile_line.

List CRS codes currently registered with proj4 in this session (pre-registered defaults plus any added via register_crs_definition).

List all layers (name, color, visible, locked).

List all named parameters.

List all raster (basemap) layers attached to the session.

Load a project JSON file from disk and replace the current scene (undo/redo cleared).

Create a simplified lofted solid from one or more profiles.

Create a angle mate between two references.

Create a coincident mate between two references.

Create a concentric mate between two references.

Create a distance mate between two references.

Create a parallel mate between two references.

Measure angle between two lines.

Measure planar area from an entity.

Measure the combined bounding box of entities.

Measure solid centroid.

Measure distance between two points.

Approximate minimum distance between two solids via bounding boxes.

Measure simplified moment of inertia from bbox.

Measure perimeter or curve length for an entity.

Summarize polygonal area by entity, optionally grouped by a property field for study zones.

Measure the length of a profile line or transect.

Measure solid surface area.

Measure solid volume.

Create mirrored copies of one or more entities across an axis line.

Start a new empty CAD project (default layer 0, no entities). Optional project name.

Create an offset copy of a supported 2D entity. Use left/right for open curves and inside/outside or inward/outward for closed curves.

Alias for load_project: load a project JSON file from disk and replace the current scene.

Record the current scene state on the undo stack (clears redo). Call before a batch of edits you want to revert in one step.

Re-apply the last undone scene state.

Register an EPSG-style CRS definition with proj4 so future reprojection tools can use it. code should be like 'EPSG:4548' and definition is a proj4 string.

Remove a component instance from an assembly.

Remove a raster layer by id.

Rename an existing layer. Any entities on the old layer are updated to the new layer name.

Rename a raster layer for human reference.

Render current scene or selected entities to a base64 image payload.

Wireframe SVG preview of entities (mm). Optional entity_ids limits which shapes are drawn.

Decode an attached raster layer (or a GeoTIFF on disk) into a PNG preview. Single-band rasters are auto-stretched to grayscale; multi-band rasters use the first three bands. Returns base64 PNG bytes; pass output_path to also write to disk.

Reproject a single point between two CRSes using proj4. from/to accept EPSG codes (e.g. 'EPSG:4326', '4326') or full proj4 strings. Common CN CRSes (EPSG:4326/3857/4490/4513-4533) are pre-registered.

Reproject many points between two CRSes in one call. Same from/to semantics as reproject_point.

Discard changes since the matching begin_transaction and restore scene state.

Save the current scene to a project JSON file on disk (cad-mcp-project v1).

Return entities in a group.

Mark a component as flexible or rigid.

Set a drawing scale factor between local drawing units and world coordinates.

Set entity color display metadata on one or more entities.

Assign entities to a layer by name.

Set entity linetype display metadata on one or more entities.

Set entity lineweight display metadata on one or more entities.

Set a mutable entity field (layer, coords, closed, properties) or a custom property-bag value. Reserved fields id and type cannot be changed.

Set or clear a layer display color. Pass an empty string to clear the stored color.

Set whether a layer is locked against editing.

Set whether a layer is visible in previews and listings.

Set the current map extent used for paper layout, grids, and exports.

Attach material metadata to a solid.

Create or replace a named parameter.

Set project CRS and optional origin metadata for resource/environment mapping workflows.

Toggle a raster layer's visibility flag.

Set a table cell value.

Store active drawing standard in parameter state.

Store active visual style in parameter state.

Create a simplified shelled copy of a solid.

Create a simplified swept solid from a profile and path.

Transform coordinates between local drawing space and world space using project origin and drawing scale.

Trim a line-like entity by shortening it toward its midpoint.

Restore the scene to the previous undo checkpoint.

Remove a group by id.

Return current drawing state after a logical refresh.

Update an existing parameter value.