n8n-nodes-missionize

N8N community node for Missionize AI governance. Intercept AI agent tool calls, enforce policies before execution, and seal every decision into a cryptographic evidence envelope -- all from your N8N workflow canvas.

Installation

N8N Community Nodes (recommended)

1. Go to Settings > Community Nodes in your N8N instance
2. Click Install a community node
3. Enter: n8n-nodes-missionize
4. Click Install

Manual

cd ~/.n8n
npm install n8n-nodes-missionize

Restart N8N after installation.

Credentials Setup

1. Go to app.missionize.ai
2. Navigate to Workspace Settings > API Keys
3. Click Generate to create a new key (starts with mzkey_)
4. In N8N: Credentials > New > search "Missionize API"
5. Paste your API key

Operations

Create Session

Start a governance session that groups related agent tool calls.

| Field | Type | Description | |-------|------|-------------| | Agent ID | string | Unique identifier for the agent (e.g. email-agent) | | Metadata | JSON | Optional context stored with the session |

Output: session_id, agent_id, created_at

Intercept Tool Call

Intercept an agent tool call for policy evaluation and evidence sealing.

| Field | Type | Description | |-------|------|-------------| | Session ID | string | From Create Session output | | Agent ID | string | Must match Create Session | | Tool Name | dropdown | send_email, query_database, call_api, write_file, execute_code, send_slack_message | | Tool Input | JSON | Parameters the agent wants to pass to the tool | | Return Raw Response | boolean | Include full API response under _raw key |

Output: decision (proceed / block / require_approval), reason, envelope_id, session_id, policy_set_name, mission_id

Get Session Timeline

Retrieve the full audit trail for a session.

| Field | Type | Description | |-------|------|-------------| | Session ID | string | Session to retrieve |

Output: Full session object with all intercept events and envelope IDs.

Example Workflow

Create Session --> Intercept Tool Call --> Switch ({{ $json.decision }})
                                              |
                                    +---------+---------+
                                    |         |         |
                                 ALLOWED   BLOCKED   PENDING
                                    |         |      APPROVAL
                                 (execute  (abort,    (queue
                                  tool)    log it)   for review)

1. Create Session -- start a governance session for your agent
2. Intercept Tool Call -- ask Missionize before executing any tool
3. Switch on {{ $json.decision }} -- route to ALLOWED, BLOCKED, or PENDING APPROVAL branches
4. Each branch handles the outcome: execute the tool, abort, or queue for human review

Every decision is sealed in a cryptographic evidence envelope that can be verified offline.

Links

• Missionize -- AI governance infrastructure
• Documentation -- Product documentation
• Agent Demo -- Live interactive demo