N8N Automation Sequence Controller MCP Endpoint

This package furnishes an MCP (Management Control Protocol) intermediary specifically engineered for comprehensive administration of N8N workflows. It furnishes mechanisms to list, construct, revise, eliminate, activate, and suspend these automated sequences via a curated set of exposed functionalities.

Critical Notice: This iteration strictly mandates the use of npm for dependency management and server execution initialization. (Support for npx execution will be reinstated in a subsequent release cycle.)

Prerequisites

• Node.js Runtime Environment (Version 14 or later is advised)
• Node Package Manager (npm)

Detailed Deployment Procedure

1. Source Code Retrieval

Obtain the repository contents from your chosen source control platform. For instance:

bash git clone https://github.com/makafeli/n8n-workflow-builder.git

Subsequently, navigate into the project's root directory:

bash cd /root/n8n-workflow-builder

2. Dependency Acquisition

Fetch all requisite external libraries utilizing npm:

bash npm install

This operation resolves and installs all dependencies enumerated within the package.json manifest.

3. Compilation and Validation

To validate functionality and bring the control server online, employ the subsequent command sequences:

• Project Compilation: This process compiles the TypeScript source code into executable JavaScript artifacts residing in the ./build folder.

bash npm run build

• MCP Server Initialization: Start the control endpoint using the following invocation:

bash npm start

The server initiates communication over the standard input/output streams. Monitor the console output for confirmation messages indicating successful service commencement.

4. Operational Deployment Strategy

For initial validation and deployment readiness, the sequence of installation, compilation, and startup commands detailed above constitutes the currently endorsed operational paradigm.

5. Auxiliary Configuration Parameters

The control server's operational parameters are governed by the configuration present in the cline_mcp_settings.json file. It is mandatory that the following environment variables are accurately provisioned:

• N8N_HOST: The fully qualified URL pointing to the N8N API ingress.
• N8N_API_KEY: The corresponding secret credential for N8N API access.

Exemplary parameter configuration within cline_mcp_settings.json:

{ "n8n-workflow-builder": { "command": "node", "args": ["/root/n8n-workflow-builder/build/index.js"], "env": { "N8N_HOST": "https://n8n.io/api/v1/", "N8N_API_KEY": "YOUR_N8N_API_KEY_HERE" }, "disabled": false, "alwaysAllow": [ "create_workflow", "create_workflow_and_activate", "update_workflow", "activate_workflow", "deactivate_workflow", "get_workflow", "delete_workflow" ], "autoApprove": [] } }

Service Capabilities

Defined MCP Interfaces (Tools)

The following standardized functions are exposed by the server endpoint for client interaction:

Workflow Lifecycle Operations

• list_workflows: Retrieves a catalog of all registered N8N sequences.
• create_workflow: Provisions a new automation sequence within N8N.
• get_workflow: Fetches detailed specifications for a sequence identified by its unique index.
• update_workflow: Applies modifications to an existing sequence definition.
• delete_workflow: Permanently eradicates a sequence based on its identifier.
• activate_workflow: Transitions a sequence to an operational state.
• deactivate_workflow: Transitions a sequence to an inactive state.

Execution Telemetry Management

• list_executions: Generates a manifest of sequence executions, supporting optional filtering criteria.
• get_execution: Provides in-depth metrics for a specific execution instance.
• delete_execution: Removes a record pertaining to a specific execution instance.

Contextual Data Sources (Resources)

The server also exposes the following static and dynamic data access points for improved contextual retrieval:

Static Data Maps

• /workflows: A complete enumeration of all deployable workflows within the connected N8N tenant.
• /execution-stats: Aggregated summary statistics concerning historical workflow execution activity.

Dynamic Parameterized Accessors

• /workflows/{id}: Detailed attribute set for a workflow identified by its substitution variable {id}.
• /executions/{id}: Comprehensive data payload for an execution identified by its substitution variable {id}.

Diagnostics and Remediation

• Confirm adherence to the npm-only execution mandate (npx is currently unsupported).

• Should operational irregularities arise, consider purging the build artifacts and reinitiating the compilation cycle: bash npm run clean && npm run build

• Validate the integrity and accuracy of the environment definitions within cline_mcp_settings.json.

Planned Evolution

• Reintegration of native npx invocation capabilities.
• Expansion of available operational tools and workflow feature sets.
• Refinements to the deployment methodologies and scalability profiles.

Licensing Information

This software artifact is distributed under the terms of the MIT License.

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