Get the Autodesk cloudhelp URL for an API class or member (e.g. 'ExtrudeFeatures.createInput').

Inspect the live Fusion API: list a class's (or an object path's) properties and method signatures. target is a class name (e.g. 'ExtrudeFeatures') or a path ('rootComponent.bRepBodies'); query filters member names. Use this to discover the exact API to drive via fusion_api_call.

Create an as-built joint (keeps both components in their current place).

Inspect one body by index or name, including its current operative ID, component, topology counts, volume, visibility, and bounding box.

Get the overall bounding box of the whole design, in millimetres.

Create a box (cuboid): width(X) x depth(Y) x height(Z) in mm, centered on the XY origin and rising in +Z. Auto-creates a document if none is open. For a cube, pass equal width/depth/height. Pass component (a component name from fusion_create_component) to build the box INSIDE that component — useful for building assembly parts to then joint together.

Add an operation to a setup by strategy (e.g. face, pocket2d, adaptive2d, contour2d, drill, bore). Optional tool_diameter/stepdown/stepover in mm. Note: most strategies need a tool assigned before a toolpath will generate.

Create a CAM setup around a body. operation_type: milling/turning/cutting.

Generate toolpaths: one operation in a setup, a whole setup, or all=true.

List operations in a CAM setup (name, has_toolpath, is_valid).

List CAM setups and their operations. Requires the Manufacturing workspace to have been opened once in Fusion.

List cutting tools from the local tool library (for assigning to operations).

Post-process a setup (or one operation) to a G-code file on the host (default ~/fusion-mcp-exports/nc). post_processor is a generic post name.

Chamfer edges of a body by distance mm. edges='all' or a list of indices.

Pattern a body around axis x/y/z: count copies spread over angle degrees.

Close a document — save=true saves it first, save=false discards unsaved changes.

Closes the active document unless document names another open one. With save=true a never-saved document is written into the active Fusion project first (use name / project to choose where); if that save fails the document is left open rather than losing the work.

Close every open document EXCEPT the active one — handy for tidying up after stray documents accumulated. save=false discards their unsaved changes.

Boolean-combine a target body with one or more tool bodies (by index or name). operation: join (union), cut (subtract tools from target), or intersect. Set keep_tools=true to preserve the tool bodies.

Create a component occurrence, optionally making it the build target.

Create a flat pattern from an EXISTING sheet-metal body. Note: Fusion's API cannot create sheet-metal flanges/bends (model those interactively).

Create a new user parameter (e.g. name='width', expression='40 mm').

Create an empty sketch on a base plane (xy/xz/yz) or construction-plane index.

Create a sketch ON a planar face of a body. Get the face index from fusion_list_faces (is_planar=true). Sketch coordinates are then local to that face.

Create a cylinder of height mm and radius OR diameter mm, centered on the XY origin. Auto-creates a document if none is open.

Delete every timeline feature, clearing the design. Destructive.

Delete exactly one body and verify the resulting model state. Destructive. This does not delete sketches, features, or construction geometry.

Delete a user parameter by name (model parameters cannot be deleted).

Summarize the active document: display units, counts of bodies, components, sketches and parameters, save state, and the active component.

Apply draft to faces of a body. angle deg; pull-direction plane xy/xz/yz. faces is a list of face indices (from fusion_list_faces) or omitted for all.

Export a sketch to a 2D DXF file (e.g. for laser cutting / drawings).

Export a native Fusion archive (.f3d), preserving the full design tree.

Export the whole design to IGES (.igs). Note: IGES export is restricted on personal-use Fusion licenses — prefer STEP for CAD interchange.

Export the whole design to STEP (.step), the best format for CAD interchange.

Export to STL (for 3D printing). Optional body (else whole design); refinement low/medium/high. Saved on the host (default ~/fusion-mcp-exports).

Extrude a sketch profile by distance mm. operation: new/join/cut/ intersect. direction: positive/negative/symmetric. profile: index or 'all'.

Round edges of a body by radius mm. edges='all' (default) or a list of edge indices.

Zoom/fit the view to show the whole model.

Return the current build target; subsequent build operations target it.

Detailed info for one body (by index or name): volume, area, face/edge/ vertex counts, and bounding box.

Get one parameter by name.

Get the document's default length unit.

Ground (lock in place) or unground a component occurrence.

Drill a circular hole (cut) of diameter mm at (x,y). By default it goes through everything on plane (xy/xz/yz). For a hole on an existing body face, pass on_body + on_face (from fusion_list_faces); (x,y) are then in that face's local coordinates. Set depth for a blind hole.

Check interference between 2+ bodies (list of indices/names); returns the overlapping volumes (mm³). Use to validate clearances/fits in an assembly.

Create a joint between two components. type: rigid / revolute / slider / cylindrical / planar; axis (x/y/z) is the motion axis. By default it joins at the component origins; pass face_one/face_two (planar face indices on each component's first body) to mate specific faces.

List available appearance names (optionally filtered by substring).

List all solid/surface bodies with index, name, volume (mm³), and bounding box (mm). Use the index or name to target a body in other tools.

List all components in the design with their body counts.

List all open Fusion documents with their active / modified / saved state.

Enumerate one body's edges for selective operations. Returns a topology snapshot plus index, curve type, length, points, radius when circular, and adjacent face indices/types for each edge.

List a body's faces (index, area mm², is_planar, centroid, normal). Use a planar face's index to sketch/drill on it (fusion_create_sketch_on_face, fusion_hole with on_body/on_face).

List timeline features in creation order.

List joints (name, type), plus as-built-joint and rigid-group counts.

List component occurrences: name, grounded, visible, body count.

List all parameters (user + model) with expression, value, and unit.

List the Fusion projects a document can be saved into, and which one is active (where fusion_save_document / _as put a never-saved document).

List sketches with index, name, and number of closed profiles.

Inspect thread features in the active or named component without modifying it.

Loft a smooth solid between profiles taken from a list of sketch indices/ names (>=2), in order. Each sketch should contain one closed profile.

Angle (degrees) between the first faces of two bodies.

Minimum distance in millimetres between two bodies.

Mirror a body across plane xy/xz/yz.

Translate a body by (dx, dy, dz) millimetres.

Translate a component occurrence by (dx, dy, dz) millimetres.

Create a NEW empty Fusion design document.

Prefer NOT calling this. If a document is already open, build in THAT one — several parts belong in ONE document as separate components (fusion_create_component). Stray documents pile up and only the user can close them by hand.

Set confirm=true only when the user explicitly asked for a new document/project, or when nothing is open at all (then it is a no-op flag). Without confirm the call is refused while any document is open.

Offset faces of a body by distance mm (creates an offset surface body).

Create a construction plane offset from a base plane (xy/xz/yz) by offset mm. Returns its index for use as a sketch plane.

Mass (g), volume (mm³), area (mm²), density, and center of mass for a body (by index/name) or the whole design if omitted. Also reports material name, material source, assignment scope, and whether material evidence was verified.

Pattern a body in a line along axis x/y/z: count copies, spacing mm apart.

Redo the last undone operation.

Rename a body.

Revolve a sketch profile around axis x/y/z by angle degrees.

Lock 2+ components together as a rigid group (pass a list of names).

Rotate a body by angle degrees (right-hand rule) about an axis through a point. axis: "x"/"y"/"z" or a free direction vector [i, j, k]. origin: [x, y, z] in millimetres, defaults to the world origin. Use this to build inclined geometry that revolve/extrude alone cannot produce.

Save a document (the active one unless document names another open one).

A never-saved document is saved into the active Fusion project automatically (optionally under name / into project), so no interactive dialog is needed.

Save a document as a NEW file called name (in project, else the active project). Use this to keep the original untouched. The current bridge confirms the document and project but does not return a reopenable version identifier.

Uniformly scale a body by factor about the origin (2.0 doubles its size).

Capture the active Fusion viewport and return it as a PNG image so you can visually inspect the model. Set fit=False to keep the current camera.

Set the build target for subsequent sketch, primitive, and feature operations.

Use root to reset targeting to the root component.

Apply an appearance (by name) to a body. Use fusion_list_appearances to discover valid names (e.g. 'Steel', 'Aluminum', 'ABS').

Show or hide a body.

Set a parameter's expression, e.g. '25 mm' or 'width * 2'. This is the preferred way to resize an existing parametric model.

Set the document's display length unit: mm/cm/m/in/ft. (Note: tool inputs are always in millimetres regardless of this display setting.)

Set a named camera orientation: home/iso/top/bottom/front/back/left/right.

Hollow out a body to a wall thickness mm.

Draw a 3-point arc (mm): from start (x1,y1), through (x2,y2), to end (x3,y3). Useful as a sweep/revolve path.

Draw a circle (mm) by center (x,y) and radius OR diameter.

Add a geometric constraint between sketch entities (by curve index). type: coincident/parallel/perpendicular/tangent/equal/horizontal/vertical/ concentric/collinear/midpoint/symmetry. For coincident/midpoint, entity_one is a sketch-point index. This is the key to robust, editable parametric sketches.

Add a driving dimension. type: distance/horizontal/vertical/angular/radial/ diameter. value is mm (degrees for angular). Drives parametric sizing.

Draw a single line segment from (x1,y1) to (x2,y2), in mm.

Offset a sketch curve (by index) by distance mm toward (dir_x, dir_y).

Draw a regular polygon (mm) by center, circumradius, and side count (>=3).

Project a body's edges onto a sketch (linked reference geometry).

Draw a rectangle (mm). mode='corner' treats (x,y) as a corner; mode='center' treats (x,y) as the center. Creates a new sketch on plane unless an existing sketch is given.

Draw a spline through points [[x,y],...] (mm). type 'fit_points' or 'control_points' (uses degree).

Create a sphere of radius OR diameter mm, centered on the origin. Auto-creates a document if none is open.

Split a body by a plane (xy/xz/yz) or by another body (tool_body).

Split faces of a body by a plane (xy/xz/yz).

High-level snapshot of the design: units, counts, and a body list. A good first call to understand the current model.

Suppress a timeline feature by name (from fusion_list_features).

Patch a closed sketch profile into a surface body.

Create a ruled surface from a body edge (by index), extended by distance mm.

Stitch surface bodies (list of indices/names) into one, with tolerance mm.

Thicken a (surface) body's faces into a solid by thickness mm. direction 'positive' or 'symmetric'.

Sweep a profile (from profile_sketch) along the first curve of path_sketch. Draw the path as an open sketch (line/arc/spline) and the profile as a closed sketch, then sweep.

Add a thread to a cylindrical face (face index from fusion_list_faces, the non-planar one). internal=True for a hole; modeled=True for real geometry.

Undo the last operation (guards against a parametric->direct design flip).

Unsuppress a timeline feature by name.