n8n - Memvid

Integrate Memvid with n8n using HTTP Request nodes and a reusable production workflow.

API-based integration. This guide uses https://api.memvid.com directly (no SDK and no local .mv2 file).

Prerequisites

A Memvid API key (mv2_...)
n8n instance (cloud or self-hosted)
Optional: existing memory ID

Set Up Credentials in n8n

Create a new HTTP Header Auth credential in n8n.
Set:
- Header Name: Authorization
- Header Value: Bearer mv2_YOUR_API_KEY
Reuse this credential across all Memvid HTTP Request nodes.

You can also use X-API-Key: mv2_YOUR_API_KEY if preferred.

Golden Path Workflow

Create memory (once)
Add documents
Find context
Ask with RAG

Importable n8n Workflow JSON

Import the following JSON in n8n (Workflows -> Import from Clipboard). It creates a simple manual pipeline for create -> ingest -> find -> ask.

{
  "name": "Memvid API Golden Path",
  "nodes": [
    {
      "parameters": {},
      "id": "manual-trigger",
      "name": "Manual Trigger",
      "type": "n8n-nodes-base.manualTrigger",
      "typeVersion": 1,
      "position": [240, 300]
    },
    {
      "parameters": {
        "keepOnlySet": true,
        "values": {
          "string": [
            { "name": "memoryName", "value": "n8n Support KB" },
            { "name": "question", "value": "What is our P1 SLA?" },
            { "name": "query", "value": "How fast should P1 incidents be acknowledged?" }
          ]
        }
      },
      "id": "seed-input",
      "name": "Seed Input",
      "type": "n8n-nodes-base.set",
      "typeVersion": 3.4,
      "position": [460, 300]
    },
    {
      "parameters": {
        "method": "POST",
        "url": "https://api.memvid.com/v1/memories",
        "sendBody": true,
        "contentType": "json",
        "jsonBody": "={\"name\": $json.memoryName, \"description\": \"Created from n8n workflow\"}"
      },
      "id": "create-memory",
      "name": "Create Memory",
      "type": "n8n-nodes-base.httpRequest",
      "typeVersion": 4.2,
      "position": [700, 300],
      "credentials": {
        "httpHeaderAuth": {
          "name": "Memvid API Key"
        }
      }
    },
    {
      "parameters": {
        "method": "POST",
        "url": "=https://api.memvid.com/v1/memories/{{$json.id}}/documents",
        "sendBody": true,
        "contentType": "json",
        "jsonBody": "={\"documents\":[{\"title\":\"Escalation Policy\",\"text\":\"P1 incidents must be acknowledged within 10 minutes.\",\"tags\":[\"support\",\"policy\"]}]}"
      },
      "id": "add-document",
      "name": "Add Document",
      "type": "n8n-nodes-base.httpRequest",
      "typeVersion": 4.2,
      "position": [940, 300],
      "credentials": {
        "httpHeaderAuth": {
          "name": "Memvid API Key"
        }
      }
    },
    {
      "parameters": {
        "method": "POST",
        "url": "=https://api.memvid.com/v1/memories/{{$node[\"Create Memory\"].json[\"id\"]}}/find",
        "sendBody": true,
        "contentType": "json",
        "jsonBody": "={\"query\": $node[\"Seed Input\"].json[\"query\"], \"topK\": 5}"
      },
      "id": "find",
      "name": "Find",
      "type": "n8n-nodes-base.httpRequest",
      "typeVersion": 4.2,
      "position": [1180, 220],
      "credentials": {
        "httpHeaderAuth": {
          "name": "Memvid API Key"
        }
      }
    },
    {
      "parameters": {
        "method": "POST",
        "url": "=https://api.memvid.com/v1/memories/{{$node[\"Create Memory\"].json[\"id\"]}}/ask",
        "sendBody": true,
        "contentType": "json",
        "jsonBody": "={\"question\": $node[\"Seed Input\"].json[\"question\"], \"options\": {\"model\":\"gpt-4o-mini\",\"includeSources\": true}}"
      },
      "id": "ask",
      "name": "Ask",
      "type": "n8n-nodes-base.httpRequest",
      "typeVersion": 4.2,
      "position": [1180, 380],
      "credentials": {
        "httpHeaderAuth": {
          "name": "Memvid API Key"
        }
      }
    }
  ],
  "connections": {
    "Manual Trigger": {
      "main": [[{ "node": "Seed Input", "type": "main", "index": 0 }]]
    },
    "Seed Input": {
      "main": [[{ "node": "Create Memory", "type": "main", "index": 0 }]]
    },
    "Create Memory": {
      "main": [[{ "node": "Add Document", "type": "main", "index": 0 }]]
    },
    "Add Document": {
      "main": [
        [{ "node": "Find", "type": "main", "index": 0 }],
        [{ "node": "Ask", "type": "main", "index": 0 }]
      ]
    }
  }
}

Node-by-Node Reference

1) Create Memory

Add an HTTP Request node:

Method: POST
URL: https://api.memvid.com/v1/memories
Authentication: your Memvid header credential
Body (JSON):

{
  "name": "Customer Support KB",
  "description": "Docs and runbooks for support agents"
}

Store id from the response as memoryId in your workflow.

2) Add Documents

Add another HTTP Request node:

Method: POST
URL: https://api.memvid.com/v1/memories/{{$json.memoryId}}/documents
Body (JSON):

{
  "documents": [
    {
      "title": "Escalation Policy",
      "text": "P1 incidents must be acknowledged within 10 minutes.",
      "tags": ["support", "policy"]
    }
  ]
}

3) Search (`find`)

Method: POST
URL: https://api.memvid.com/v1/memories/{{$json.memoryId}}/find
Body (JSON):

{
  "query": "How fast should P1 incidents be acknowledged?",
  "topK": 5
}

4) Ask (`ask`)

Method: POST
URL: https://api.memvid.com/v1/memories/{{$json.memoryId}}/ask
Body (JSON):

{
  "question": "What is the P1 response SLA?",
  "options": {
    "model": "gpt-4o-mini",
    "includeSources": true
  }
}

Reliability Upgrades

Add error branches from each HTTP node and alert on non-2xx responses.
Retry 429 and 5xx failures with Wait + loop nodes.
Use one memory per tenant/project for cleaner access boundaries.
Prefer memory-scoped keys for least-privilege workflows.
Start with find for retrieval-only steps, then use ask when synthesis is needed.

Smoke Test

After importing, run the workflow manually and verify:

Create Memory returns an id
Find returns at least one hit
Ask returns answer text and sources

​Prerequisites

​Set Up Credentials in n8n

​Golden Path Workflow

​Importable n8n Workflow JSON

​Node-by-Node Reference

​1) Create Memory

​2) Add Documents

​3) Search (find)

​4) Ask (ask)

​Reliability Upgrades

​Smoke Test

​Related Docs

Prerequisites

Set Up Credentials in n8n

Golden Path Workflow

Importable n8n Workflow JSON

Node-by-Node Reference

1) Create Memory

2) Add Documents

3) Search (`find`)

4) Ask (`ask`)

Reliability Upgrades

Smoke Test

Related Docs