fix_node_params

MCP tool from N8n Workflow Builder MCP by ifmelate

Return parameters with defaults applied for required fields that are missing

How to use it

Project documentation lists fix_node_params for the N8n Workflow Builder MCP MCP server. Add the server to your MCP client (Claude Desktop, Cursor, Windsurf and others), then check which tools your installed version makes available. Tool availability can depend on configuration and credentials. A server handshake does not verify this tool’s behavior. See the full listing for setup details.

Install N8n Workflow Builder MCP

$claude mcp add n8n-workflow-builder -- npx -y n8n-workflow-builder-mcp
FULL N8N WORKFLOW BUILDER MCP LISTING

Other tools in N8n Workflow Builder MCP (19)

add_ai_connections

Wire AI model, tools, and memory to an agent

add_connection

Create a connection between two nodes

add_node

Add a new node to a workflow

apply_workflow_plan

Apply a previously reviewed plan to the workflow on disk (atomic write)

compose_ai_workflow

Compose a complex AI workflow (agent + model + memory + embeddings + vector + tools + trigger) in one call, including wiring and basic validation

connect_main_chain

Build a minimal main path through AI workflow nodes (Trigger → Model → Memory → Embeddings → Doc Loader → Vector Store → Vector Tool → Agent)

create_workflow

Create a new n8n workflow

delete_node

Delete a node from a workflow

edit_node

Edit an existing node in a workflow

get_n8n_version_info

Get current N8N version and capabilities

get_workflow_details

Get detailed information about a specific workflow

list_available_nodes

List available node types with optional filtering. Supports tag-style synonyms and multi-token OR/AND logic

list_missing_parameters

List required parameters missing for a node considering visibility rules

list_template_examples

List node usage examples extracted from free templates. Filter by nodetype or templatename

list_workflows

List workflows in the workspace

plan_workflow

Create a non-destructive plan (nodes and connections) to update a workflow. Does not write files

review_workflow_plan

Apply a plan in-memory and return validation errors, warnings, and suggested fixes. Does not write files

suggest_node_params

Suggest minimal valid parameters for a node type using defaults and required fields

validate_workflow

Validate a workflow file against node schemas and connectivity