MCP tool reference - Melius

The Melius MCP server currently exposes 52 GA tools. The agent picks the right ones based on your prompt — you don’t have to call them directly. Tools are grouped below by category.

Guide

Tool	Purpose
`get_guide`	Mandatory first call. Returns the agent’s working context for the current task.
`get_docs`	Fetch Melius documentation pages by topic.

Teams & Projects

Tool	Purpose
`team_list`	List teams your API key has access to.
`project_list`	List projects in a team.
`project_get`	Get a project by ID.
`project_create`	Create a new project with an empty canvas.

Canvas

Tool	Purpose
`canvas_list`	List canvases in a project.
`canvas_get`	Get canvas metadata.
`canvas_content`	Get all nodes and edges on a canvas.
`canvas_create`	Create a new canvas.
`canvas_delete`	Delete a canvas and everything on it.
`canvas_plan_layout`	Compute positions for new nodes that don’t overlap existing content. Call before `bulk_create_nodes`.

Nodes

Tool	Purpose
`node_create`	Create a node (text, image, video, file, custom_text, or group).
`node_update`	Update a node’s prompt, model, or settings.
`node_set_text`	Set the literal text content of a `custom_text` node.
`node_set_version`	Select a specific generation version on a node.
`node_delete`	Delete a node.
`bulk_delete_node`	Delete multiple nodes in one batch. Requires user confirmation.
`bulk_create_nodes`	Create multiple nodes — and optionally edges — in one call.

Groups

Tool	Purpose
`node_group`	Group a set of nodes into a container.
`node_ungroup`	Dissolve a group and release its children.

Edges

Tool	Purpose
`edge_create`	Connect two nodes with an edge.
`bulk_create_edges`	Create multiple edges in one call.
`edge_delete`	Remove an edge.

Runs

Tool	Purpose
`run_start`	Start an AI generation on a single node.
`run_get`	Get the status and result of a run.
`run_wait`	Wait for a single run to finish, fail, or be cancelled.
`run_latest`	Get the most recent run for every node on a canvas.
`bulk_run_start`	Start runs on multiple nodes at once.
`bulk_run_get`	Get the status of a bulk run.
`bulk_run_wait`	Wait for a bulk run to finish.

Downloads

Tool	Purpose
`run_download`	Download outputs from a single run.
`bulk_run_download`	Download outputs from a bulk run.
`creative_download`	Download all creatives from a canvas as a ZIP.

Models

Tool	Purpose
`model_list`	List available AI models, variants, and supported settings.
`model_defaults`	See which models are used when none is specified.

Audio

Tool	Purpose
`audio_voice_list`	List stock ElevenLabs voices for audio nodes (text-to-speech or audio-to-audio).
`custom_voice_list`	List the team’s saved custom voices (cloned, designed, or imported).

Comments

Tool	Purpose
`comment_list`	List comments on a canvas.
`comment_create`	Create a comment thread at a position on the canvas.
`comment_reply`	Reply to an existing comment.
`comment_resolve`	Mark a comment as resolved.

Presence

Tool	Purpose
`show_presence`	Claim a region of the canvas. Required before node-scoped mutations.
`release_presence`	Release the current presence claim.

Presets

Tool	Purpose
`preset_list`	List available canvas presets — pre-built node + edge templates for common workflows.
`preset_apply`	Apply a preset to a canvas in one call. Auto-positions to avoid overlapping existing content.

Files & imports

Tool	Purpose
`file_upload`	Start a file upload. Returns a signed URL.
`file_upload_complete`	Finalize the upload after the bytes are PUT to the signed URL.
`url_to_canvas`	Download image or video URLs and add them as file nodes on the canvas.

Team skills

Tool	Purpose
`create_agent_team_skill`	Save a reusable team skill — a named set of agent instructions invokable from chat by its slash command.

Agent context

Tool	Purpose
`import_agent_context`	Materialize the team’s agent-context images on the canvas as a default group with matching description text nodes.

Display

Tool	Purpose
`display_canvas`	Render an inline preview of the current canvas state in the agent chat.

Last modified on May 29, 2026

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