The workflow JSON
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{
"name": "TrustLoop + Signatrust: Human Approval Flow",
"nodes": [
{
"parameters": {
"httpMethod": "POST",
"path": "ai_high_risk_decision",
"responseMode": "lastNode",
"options": {}
},
"id": "trigger-1",
"name": "AI High-Risk Decision",
"type": "n8n-nodes-base.webhook",
"typeVersion": 1,
"position": [
0,
0
]
},
{
"parameters": {
"method": "POST",
"url": "https://api.trustloop.live/api/intercept",
"sendHeaders": true,
"headerParameters": {
"parameters": [
{
"name": "x-api-key",
"value": "={{$env.TRUSTLOOP_API_KEY}}"
}
]
},
"sendBody": true,
"specifyBody": "json",
"jsonBody": "{\"tool_name\": \"high_risk_action\", \"arguments\": {{JSON.stringify($json.body)}}, \"agent_name\": \"n8n-approval-workflow\"}",
"options": {}
},
"id": "trustloop-1",
"name": "TrustLoop Policy Check",
"type": "n8n-nodes-base.httpRequest",
"typeVersion": 4,
"position": [
200,
0
]
},
{
"parameters": {
"conditions": {
"boolean": [
{
"value1": "={{$json.allowed}}",
"value2": true
}
]
}
},
"id": "if-1",
"name": "Is Allowed?",
"type": "n8n-nodes-base.if",
"typeVersion": 1,
"position": [
400,
0
]
},
{
"parameters": {
"conditions": {
"number": [
{
"value1": "={{$('AI High-Risk Decision').item.json.body.risk_score || 0}}",
"operation": "largerEqual",
"value2": 0.7
}
]
}
},
"id": "risk-check-1",
"name": "Risk Score >= 0.7?",
"type": "n8n-nodes-base.if",
"typeVersion": 1,
"position": [
600,
-100
]
},
{
"parameters": {
"jsCode": "const input = $('AI High-Risk Decision').item.json.body;\nreturn {\n action: 'pending_human_review',\n decision: input.decision || 'unknown',\n risk_score: input.risk_score || 0,\n escalation_reason: 'Risk score exceeds threshold (0.7)',\n reviewer: input.reviewer || 'compliance-team',\n timestamp: new Date().toISOString()\n};"
},
"id": "escalate-1",
"name": "Escalate to Human",
"type": "n8n-nodes-base.code",
"typeVersion": 2,
"position": [
800,
-200
]
},
{
"parameters": {
"jsCode": "const input = $('AI High-Risk Decision').item.json.body;\nreturn {\n action: 'auto_approved',\n decision: input.decision || 'unknown',\n risk_score: input.risk_score || 0,\n approval_type: 'automatic',\n timestamp: new Date().toISOString()\n};"
},
"id": "auto-approve-1",
"name": "Auto-Approve (Low Risk)",
"type": "n8n-nodes-base.code",
"typeVersion": 2,
"position": [
800,
0
]
},
{
"parameters": {
"method": "POST",
"url": "https://signatrust.net/api/v1/n8n/receipts",
"sendHeaders": true,
"headerParameters": {
"parameters": [
{
"name": "X-API-Key",
"value": "={{$env.SIGNATRUST_API_KEY}}"
},
{
"name": "Content-Type",
"value": "application/json"
}
]
},
"sendBody": true,
"specifyBody": "json",
"jsonBody": "={{JSON.stringify({\"decision\": ($json.action === 'pending_human_review' ? 'ESCALATED: ' : 'AUTO-APPROVED: ') + ($json.decision || 'unknown action') + ' \u2014 risk_score: ' + ($json.risk_score || 0) + ' \u2014 governed by TrustLoop policy', \"agent_id\": \"n8n-approval-workflow\", \"action\": $json.action, \"metadata\": {\"governed_by\": \"TrustLoop\", \"risk_score\": $json.risk_score, \"approval_type\": $json.approval_type || 'human_review'}})}}",
"options": {}
},
"id": "signatrust-1",
"name": "Signatrust Seal Receipt",
"type": "n8n-nodes-base.httpRequest",
"typeVersion": 4,
"position": [
1000,
-100
]
},
{
"parameters": {
"method": "GET",
"url": "=https://signatrust.net/api/v1/n8n/receipts/{{$json.receipt_id}}/verify",
"sendHeaders": true,
"headerParameters": {
"parameters": [
{
"name": "X-API-Key",
"value": "={{$env.SIGNATRUST_API_KEY}}"
}
]
},
"options": {}
},
"id": "verify-1",
"name": "Verify Receipt",
"type": "n8n-nodes-base.httpRequest",
"typeVersion": 4,
"position": [
1200,
-100
]
},
{
"parameters": {
"jsCode": "const receipt = $('Signatrust Seal Receipt').item.json;\nconst verification = $json;\nreturn {\n status: 'completed',\n receipt_id: receipt.receipt_id,\n verified: verification.valid,\n share_url: receipt.share_url,\n hash: receipt.hash,\n signature: receipt.signature\n};"
},
"id": "respond-1",
"name": "Return Audit Trail",
"type": "n8n-nodes-base.code",
"typeVersion": 2,
"position": [
1400,
-100
]
},
{
"parameters": {
"jsCode": "return {\n status: 'blocked',\n reason: $('TrustLoop Policy Check').item.json.message || 'Policy violation detected',\n action: 'high_risk_action_denied'\n};"
},
"id": "block-1",
"name": "Handle Blocked Action",
"type": "n8n-nodes-base.code",
"typeVersion": 2,
"position": [
600,
100
]
}
],
"connections": {
"AI High-Risk Decision": {
"main": [
[
{
"node": "TrustLoop Policy Check",
"type": "main",
"index": 0
}
]
]
},
"TrustLoop Policy Check": {
"main": [
[
{
"node": "Is Allowed?",
"type": "main",
"index": 0
}
]
]
},
"Is Allowed?": {
"main": [
[
{
"node": "Risk Score >= 0.7?",
"type": "main",
"index": 0
}
],
[
{
"node": "Handle Blocked Action",
"type": "main",
"index": 0
}
]
]
},
"Risk Score >= 0.7?": {
"main": [
[
{
"node": "Escalate to Human",
"type": "main",
"index": 0
}
],
[
{
"node": "Auto-Approve (Low Risk)",
"type": "main",
"index": 0
}
]
]
},
"Escalate to Human": {
"main": [
[
{
"node": "Signatrust Seal Receipt",
"type": "main",
"index": 0
}
]
]
},
"Auto-Approve (Low Risk)": {
"main": [
[
{
"node": "Signatrust Seal Receipt",
"type": "main",
"index": 0
}
]
]
},
"Signatrust Seal Receipt": {
"main": [
[
{
"node": "Verify Receipt",
"type": "main",
"index": 0
}
]
]
},
"Verify Receipt": {
"main": [
[
{
"node": "Return Audit Trail",
"type": "main",
"index": 0
}
]
]
}
},
"active": false,
"settings": {
"executionOrder": "v1"
},
"versionId": "2.0"
}
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About this workflow
TrustLoop + Signatrust: Human Approval Flow. Uses httpRequest. Webhook trigger; 10 nodes.
Source: https://github.com/abokenan444/trustloop-signatrust-workflows/blob/master/5_human_approval_flow.json — original creator credit. Request a take-down →
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