Live 175 Actions

n8n MCP Server
for AI Agents

Q: What AI frameworks and AI clients does the StackOne n8n MCP server support?

The StackOne n8n MCP server supports both. MCP clients (paste-and-go apps): Claude Desktop, Claude Code, Cursor, VS Code, Goose. Agent frameworks (code SDKs you build with): OpenAI Agents SDK, Anthropic, Vercel AI, Google ADK, CrewAI, Pydantic AI, LangChain, LangGraph, Azure AI Foundry.

Connect your AI agent to StackOne's n8n MCP server and give it 175 MCP tools out of the box. Auth, tool execution, and security all managed.

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n8n MCP Server

Built by

StackOne

Coverage

175 Agent Actions

Agents can read, write, delete and run operations in n8n. Extend your agent's capabilities with custom actions.

MCP Actions → Build Actions →

Authentication

Agent Tool Authentication

Per-user OAuth in one call. Your n8n MCP server gets session-scoped tokens with zero credentials stored on your infra.

Agent Auth →

Security

Agent Protection

Every n8n tool response scanned for prompt injection in milliseconds, with 88.7% accuracy, all running on CPU.

Prompt Injection Defense →

Performance

Max Agent Context. Min Cost.

Free up to 96% of your agent's context window to enhance reasoning and reduce cost, on every n8n call.

Tools Discovery →

What is the n8n MCP Server?

A n8n MCP server lets AI agents read and write n8n data through the Model Context Protocol, Anthropic's open standard for connecting LLMs to external tools. StackOne's n8n MCP server ships with 175 pre-built actions, fully extensible via the Connector Builder, plus managed authentication, prompt injection defense, observability, and agent execution runtime. Connect it from MCP clients like Claude Desktop, Claude Code, Cursor, Goose, and VS Code, or from agent frameworks like OpenAI Agents SDK, LangChain, and Vercel AI SDK.

All n8n MCP Tools

Every StackOne action for n8n, ready for your agent. Read, write, delete and run operations, scoped to exactly what you need.

Community Packages

List Community Packages
List installed community packages in n8n.
Update Community Package
Update a community package in n8n.

Credentials

Create Credential
Create a credential in n8n.
List Credentials
List credentials in n8n.
Get Credential
Get credential by ID in n8n.
Update Credential
Update credential by ID in n8n.
Delete Credential
Delete credential by ID in n8n.

Credential Type Policy Documents

Create Credential Type Policy Document
Create a credential type policy document in n8n.
List Credential Type Policy Documents
List credential type policy documents in n8n.
Get Credential Type Policy Document
Retrieve a credential type policy document in n8n.
Update Credential Type Policy Document
Replace the rules of a credential type policy document in n8n.
Delete Credential Type Policy Document
Delete a credential type policy document in n8n.

Data Tables

Create Data Table
Create a new data table in n8n.
List Data Tables
List all data tables in n8n.
Get Data Table
Get a data table in n8n.
Update Data Table
Update a data table in n8n.
Delete Data Table
Delete a data table in n8n.

Data Table Columns

Create Data Table Column
Add a column to a data table in n8n.
List Data Table Columns
List columns of a data table in n8n.
Update Data Table Column
Update a column in n8n.
Delete Data Table Column
Delete a column in n8n.

Data Table Rows

Create Data Table Rows
Insert rows into a data table in n8n.
List Data Table Rows
List rows of a data table in n8n.
Update Data Table Rows
Update rows in a data table in n8n.
Delete Data Table Rows
Delete rows from a data table in n8n.

Executions

List Executions
Retrieve all executions in n8n.
Get Execution
Retrieve an execution in n8n.
Delete Execution
Delete an execution in n8n.

Execution Tags

List Execution Tags
List the annotation tags on an n8n execution.
Update Execution Tags
Replace the annotation tags on an n8n execution.

Folders

Create Folder
Create a folder in n8n.
List Folders
Retrieve folders in n8n.
Get Folder
Get folder details in n8n.
Update Folder
Update a folder in n8n.
Delete Folder
Delete a folder in n8n.

Unified Groups

List Unified Groups
List unified groups in an n8n instance.
Get Unified Group
Get a unified n8n group by ID.

Unified Roles

List Unified Roles
List unified roles in an n8n instance.
Get Unified Role
Get a unified n8n role by ID.

Unified Users

List Unified Users
List unified users in an n8n instance.
Get Unified User
Get a unified n8n user by ID.

Log Streaming Destinations

Create Log Streaming Destination
Create a log streaming destination in n8n.
List Log Streaming Destinations
List log streaming destinations in n8n.
Get Log Streaming Destination
Retrieve a log streaming destination in n8n.
Update Log Streaming Destination
Update a log streaming destination in n8n.
Delete Log Streaming Destination
Delete a log streaming destination in n8n.

Node Type Policy Documents

Create Node Type Policy Document
Create a node type policy document in n8n.
List Node Type Policy Documents
List node type policy documents in n8n.
Get Node Type Policy Document
Retrieve a node type policy document in n8n.
Update Node Type Policy Document
Replace the rules of a node type policy document in n8n.
Delete Node Type Policy Document
Delete a node type policy document in n8n.

N8n Packages

Import N8n Package
Import an n8n package into a project.
Export N8n Package
Export agents, workflows, folders, or projects as an n8n package.

Projects

Create Project
Create a project in n8n.
List Projects
List projects in an n8n instance.
Update Project
Update a project in n8n.
Delete Project
Delete a project in n8n.

Project Members

Add Project Members
Add one or more users to a project in n8n.
List Project Members
List the members of an n8n project with their project role.
Remove Project Member
Delete a user from a project in n8n.

Promotion Providers

Create Promotion Provider
Create a promotion provider in n8n.
List Promotion Providers
List promotion providers in n8n.
Get Promotion Provider
Retrieve a promotion provider in n8n.
Update Promotion Provider
Update a promotion provider in n8n.
Delete Promotion Provider
Delete a promotion provider in n8n.

Promotion Connections

Create Promotion Connection
Create a promotion connection in n8n.
List Promotion Connections
List promotion connections in n8n.
Get Promotion Connection
Retrieve a promotion connection in n8n.
Update Promotion Connection
Update a promotion connection in n8n.
Delete Promotion Connection
Delete a promotion connection in n8n.

Role Mapping Rules

Create Role Mapping Rule
Create a role-mapping rule in n8n.
List Role Mapping Rules
Retrieve role-mapping rules in n8n.
Update Role Mapping Rule
Update a role-mapping rule in n8n.
Move Role Mapping Rule
Move a role-mapping rule in n8n.
Delete Role Mapping Rule
Delete a role-mapping rule in n8n.

Roles

Create Role
Create a custom role in n8n.
List Roles
List global and project roles in an n8n instance.
Get Role
Get an n8n role by slug.
Update Role
Update a custom role in n8n.
Delete Role
Delete a custom role in n8n.

LDAP Configurations

Get LDAP Configuration
Retrieve the LDAP configuration in n8n.
Update LDAP Configuration
Set the LDAP configuration in n8n.

Otel Settings

Get Otel Settings
Retrieve the OpenTelemetry configuration in n8n.
Update Otel Settings
Set the OpenTelemetry configuration in n8n.

Security Policys

Get Security Policy
Retrieve the security policy in n8n.
Update Security Policy
Set the security policy in n8n.

OIDC Configurations

Get OIDC Configuration
Retrieve the OIDC SSO configuration in n8n.
Update OIDC Configuration
Set the OIDC SSO configuration in n8n.

SAML Configurations

Get SAML Configuration
Retrieve the SAML SSO configuration in n8n.
Update SAML Configuration
Set the SAML SSO configuration in n8n.

Test Runs

Create Test Run
Trigger a test run in n8n.
List Test Runs
Retrieve test runs in n8n.
Get Test Run
Retrieve a test run in n8n.

Users

Create User
Create multiple users in n8n.
List Users
List users in an n8n instance.
Get User
Get an n8n user by ID or email.
Delete User
Delete user in n8n.

Variables

Create Variable
Create a variable in n8n.
List Variables
Retrieve variables in n8n.
Update Variable
Update a variable in n8n.
Delete Variable
Delete a variable in n8n.

Workflows

Create Workflow
Create a workflow in n8n.
Publish Workflow
Publish a workflow in n8n.
List Workflows
Retrieve all workflows in n8n.
Get Workflow
Retrieve a workflow in n8n.
Update Workflow
Update a workflow in n8n.
Delete Workflow
Delete a workflow in n8n.

Workflow Versions

List Workflow Versions
Retrieve workflow version history in n8n.
Get Workflow Version
Retrieve a workflow version in n8n.

Workflow Tags

List Workflow Tags
Get workflow tags in n8n.
Update Workflow Tags
Update tags of a workflow in n8n.

Other (59)

Import N8n Package Selection
Import a selected subset of workflows from an n8n package.
Clone Promotion Checkout
Clone one direction's repository in n8n.
Add Project To Promotion Connection
Link a project to a promotion connection in n8n.
Get Credential Schema
Show credential data schema in n8n.
Get Credential Type Instance Policy
Retrieve the instance credential type policy in n8n.
Get Credential Type Project Policy
Retrieve a project's credential type policy in n8n.
Get Credential Type Policy Attachments
Retrieve a scope's attached policy documents in n8n.
Get Insights Summary
Retrieve insights summary in n8n.
List Log Streaming Event Types
List streamable event types in n8n.
Get Node Type Instance Policy
Retrieve the instance node type policy in n8n.
Get Node Type Project Policy
Retrieve a project's node type policy in n8n.
Get Node Type Policy Attachments
Retrieve a scope's attached policy documents in n8n.
List Promotion Provider Repositories
List repositories of a promotion provider in n8n.
List Promotion Repository Branches
List branches of a promotion repository in n8n.
List Promotion Connection Projects
List projects linked to a promotion connection in n8n.
List Promotion Changes
List the changes of a project in one direction in n8n.
List LDAP Sync History
Retrieve LDAP synchronization history in n8n.
Get Source Control Status
Preview pending source control changes in n8n.
List Test Run Cases
Retrieve test run cases in n8n.
Update Project Member Role
Change a user's role in a project in n8n.
Update User Role
Change a user's global role in n8n.
Remove Project From Promotion Connection
Unlink a project from a promotion connection in n8n.
Delete Promotion Config
Remove one direction in n8n.
Install Community Package
Install a community package in n8n.
Uninstall Community Package
Uninstall a community package in n8n.
Transfer Credential
Transfer a credential to another project in n8n.
Test Credential
Test credential by ID in n8n.
Replace Credential Type Instance Policy
Replace the instance credential type policy in n8n.
Replace Credential Type Project Policy
Replace a project's credential type policy in n8n.
Replace Credential Type Policy Attachments
Replace a scope's attached policy documents in n8n.
Upsert Data Table Row
Upsert a row in a data table in n8n.
Clear Data Table Rows
Clear all rows from a data table in n8n.
Stop Many Executions
Stop multiple executions in n8n.
Stop Execution
Stop an execution in n8n.
Retry Execution
Retry an execution in n8n.
Generate Security Audit
Generate an audit in n8n.
Discover API Capabilities
Discover available API capabilities in n8n.
Test Log Streaming Destination
Send a test message to a log streaming destination in n8n.
Replace Node Type Instance Policy
Replace the instance node type policy in n8n.
Replace Node Type Project Policy
Replace a project's node type policy in n8n.
Replace Node Type Policy Attachments
Replace a scope's attached policy documents in n8n.
Upsert Promotion Apply Config
Create or replace the Apply configuration in n8n.
Upsert Promotion Promote Config
Create or replace the Promote configuration in n8n.
Disconnect Promotion Checkout
Remove one direction's local checkout in n8n.
Promote All Projects
Promote all team projects in n8n.
Apply Promotion Package
Apply a package to the instance in n8n.
Continue Apply Promotion Package
Continue Apply after binding setup in n8n.
Promote Project Workflows
Promote a selection of a project's workflows in n8n.
Apply Project Workflows
Apply a selection of a project's workflows in n8n.
Continue Apply Project Workflows
Continue applying a selection after binding setup in n8n.
Run LDAP Sync
Trigger an LDAP synchronization in n8n.
Test Otel Trace
Test the connection to an OTLP collector in n8n.
Push Source Control
Push local source control changes in n8n.
Pull Source Control
Pull changes from the remote repository in n8n.
Cancel Test Run
Cancel a test run in n8n.
Archive Workflow
Archive a workflow in n8n.
Unarchive Workflow
Unarchive a workflow in n8n.
Transfer Workflow
Transfer a workflow to another project in n8n.
Unpublish Workflow
Unpublish a workflow in n8n.

Set Up Your n8n MCP Server in Minutes

One endpoint. Any framework. Your agent is talking to n8n in under 10 lines of code.

MCP Clients

Agent Frameworks

Claude Desktop-

JSON

Claude Desktop Docs

{
  "mcpServers": {
    "stackone": {
      "command": "npx",
      "args": [
        "-y",
        "mcp-remote@latest",
        "https://api.stackone.com/mcp?x-account-id=<account_id>",
        "--header",
        "Authorization: Basic <YOUR_BASE64_TOKEN>"
      ]
    }
  }
}

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Platform Resources

Comparing BM25, TF-IDF, and Hybrid Search for MCP Tool Discovery

Benchmarking BM25, TF-IDF, and hybrid search for MCP tool discovery across 916 tools. The 80/20 TF-IDF/BM25 hybrid hits 21% Top-1 accuracy in under 1ms.

10 min

Indirect Prompt Injection Defense for MCP Tools: A Technical Guide

MCP tools that read emails, CRM records, and tickets are indirect prompt injection vectors. Here's how we built a two-tier defense that scans tool results in ~11ms.

12 min

MCP vs A2A: Architecture, Security, and When to Use Each

MCP vs A2A: what each protocol standardizes, how they differ, their shared security risks including indirect prompt injection, and when to use one, both, or a hybrid architecture.

12 min

MCP vs API: What Hundreds of Connector Builds Taught Us

MCP wraps APIs, it doesn't replace them. After building hundreds of connectors that serve both, here's when each approach wins.

14 min read

n8n MCP Server FAQ

Does StackOne have a n8n MCP server?

Yes. StackOne offers a hosted n8n MCP server with 175 pre-built actions, and every action is tested and QA'd by StackOne. Connect it to Claude, Cursor, and any other MCP client, or to any agent framework through the AI Action SDK. It ships with managed agent authentication, prompt injection defense, and tool discovery with server-side execution that preserve your agent's context window and keep reasoning performance.

n8n MCP server vs direct API integration: what's the difference?

A n8n MCP server and direct API integration serve different use cases. Direct API integration is for software-to-software work, where backend code calls n8n. A n8n MCP server is for AI agents that discover and call n8n at runtime, such as MCP clients like Claude and Cursor, plus framework agents built with OpenAI, LangChain, or Vercel AI. StackOne provides both.

How does n8n authentication work for AI agents?

n8n authentication for AI agents works through a StackOne Connect Session. Create one via the dashboard or the SDK to get an auth link and ready-to-paste config for Claude Desktop, Cursor, and other MCP clients. Your user authenticates their own n8n account; StackOne handles token exchange, storage, and refresh. Credentials never reach the LLM, and each user is isolated via origin_owner_id.

Are n8n MCP tools vulnerable to prompt injection?

Yes. n8n MCP tools can be vulnerable to indirect prompt injection. Any tool that reads user-written content, such as documents, messages, tickets, records, or free-text fields, is a potential vector. StackOne Defender scans every tool response before it enters the agent's context. It runs regex patterns in ~1ms, then a MiniLM classifier in ~4ms. Accuracy is 88.7%, and it runs entirely on CPU.

What is the context bloat of a n8n agent and how do I avoid it?

Context bloat happens when n8n tool schemas and API responses eat your n8n agent's memory, preventing it from reasoning effectively. A single n8n query can return a massive JSON response, and connecting multiple tools compounds the problem. Tools Discovery reduces it by loading only the tools relevant to each query.

Can I limit which actions my n8n agent can access?

Yes. You can limit which actions your n8n agent can access directly from the StackOne dashboard. Toggle actions on or off, or restrict them to specific accounts, with no code changes to your agent. Session tokens can be scoped to exact actions so if one leaks, exposure stays contained.

Can I create custom agent actions for my n8n MCP server?

Yes. You can create custom agent actions for your n8n MCP server using Connector Builder. It's an integration agent your coding assistant (Claude Code, Cursor, or Copilot) can invoke to research n8n's API, generate production-ready connector YAML, test against the live API, and validate before you ship.

When should I NOT use a n8n MCP server?

Skip a n8n MCP server if your integration is purely software-to-software, because direct n8n API integration is simpler when no AI agent is involved. For deterministic, compliance-critical operations (financial transactions, regulatory reporting), direct API gives you predictable behavior without agent-driven decision-making. MCP shines when AI agents need to dynamically discover and call n8n actions at runtime.

What AI frameworks and AI clients does the StackOne n8n MCP server support?

The StackOne n8n MCP server supports both. MCP clients (paste-and-go apps): Claude Desktop, Claude Code, Cursor, VS Code, Goose. Agent frameworks (code SDKs you build with): OpenAI Agents SDK, Anthropic, Vercel AI, Google ADK, CrewAI, Pydantic AI, LangChain, LangGraph, Azure AI Foundry.

Put your AI agents to work

All the tools you need to build and scale AI agent integrations, with best-in-class connectivity, execution, and security.

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n8n MCP Serverfor AI Agents