Problem with N8N API Key

[Livia2002]

Hello Support Team,
I’m having an issue with my n8n API key. The key does not start with “n8n_api_” as expected from the documentation; instead, it starts with “eyJ…”. Using this key, authentication against the Cloud API fails.
Could you please:
Verify whether my key was issued correctly and, if necessary, provide a new key with the “n8n_api_” prefix; or
Confirm the correct authentication scheme (required header and expected token/prefix) for the Cloud API?
Repro context:
Workspace/Project: [name or project ID]
Endpoint (example): https://api.n8n.cloud/api/v1/projects/{PROJECT_ID}/workflows
Request header used: Authorization: Bearer <my_key_starting_with_eyJ…>
Timestamp: [DD.MM.YYYY, HH:MM, Europe/Berlin]
Result/Response: [e.g., 401/403 + error message]
Thank you in advance.
Best regards,
Livia

Please share your workflow

(Select the nodes on your canvas and use the keyboard shortcuts CMD+C/CTRL+C and CMD+V/CTRL+V to copy and paste the workflow.)

Share the output returned by the last node

Information on your n8n setup

• n8n version:
• Database (default: SQLite):
• n8n EXECUTIONS_PROCESS setting (default: own, main):
• Running n8n via (Docker, npm, n8n cloud, desktop app):
• Operating system:

[krisn0x]

The name of the header as per the docs should be:

X-N8N-API-KEY: eyJ........

Can you try like this?

[Livia2002]

He still doesn´t want to use the Key

[krisn0x]

Can you post your entire API request with obfuscated values + the error you get? I don’t find any https://api.n8n.cloud/api/v1/projects/{PROJECT_ID}/workflows endpoint in the docs

[Livia2002]

(Bearer eyJhbGciOiJIUzI1NiIsInR5cCI6IkpXVCJ9.eyJzdWIiOiJmN2M1NDU1Zi01MWYyLTQ0NDItODYzMC1lYjczNjMwZTEyMGQiLCJpc3MiOiJuOG4iLCJhdWQiOiJwdWJsaWMtYXBpIiwiaWF0IjoxNzU3OTM2MTQyfQ.dFrooqM3IRIWpZIk-ZjqOCMXE0GM-roxksEjDKW1_I0 ) https://livia2002.app.n8n.cloud/rest/workflows

[krisn0x]

Thank you, but never share your API key, I would recommend deleting this one and creating a new one, as someone could use it now.

Could you also share the Body of your request - I need to understand what you’re sending to the API

[Wouter_Nigrini]

What is your use case? There are built in n8n nodes which you can use to get workflow information as well

[jabbson]

Based on the API reference doc the create workflow endpoint should be

https://your-instance-name.app.n8n.cloud/api/v1/workflows 

Try it.

Here is a full expected request from the doc:

curl https://your-instance-name.app.n8n.cloud/api/v1/workflows \
  --request POST \
  --header 'Content-Type: application/json' \
  --header 'X-N8N-API-KEY: YOUR_SECRET_TOKEN' \
  --data '{
  "name": "Workflow 1",
  "nodes": [
    {
      "id": "0f5532f9-36ba-4bef-86c7-30d607400b15",
      "name": "Jira",
      "webhookId": "",
      "disabled": true,
      "notesInFlow": true,
      "notes": "",
      "type": "n8n-nodes-base.jira",
      "typeVersion": 1,
      "executeOnce": false,
      "alwaysOutputData": false,
      "retryOnFail": false,
      "maxTries": 1,
      "waitBetweenTries": 1,
      "onError": "stopWorkflow",
      "position": [
        -100,
        80
      ],
      "parameters": {
        "additionalProperties": {}
      },
      "credentials": {
        "jiraSoftwareCloudApi": {
          "id": "35",
          "name": "jiraApi"
        }
      }
    }
  ],
  "connections": {
    "Jira": {
      "main": [
        [
          {
            "node": "Jira",
            "type": "main",
            "index": 0
          }
        ]
      ]
    }
  },
  "settings": {
    "saveExecutionProgress": true,
    "saveManualExecutions": true,
    "saveDataErrorExecution": "all",
    "saveDataSuccessExecution": "all",
    "executionTimeout": 3600,
    "errorWorkflow": "VzqKEW0ShTXA5vPj",
    "timezone": "America/New_York",
    "executionOrder": "v1"
  },
  "staticData": {
    "lastId": 1
  },
  "shared": [
    {
      "role": "workflow:owner",
      "workflowId": "2tUt1wbLX592XDdX",
      "projectId": "2tUt1wbLX592XDdX",
      "project": {
        "name": ""
      }
    }
  ]
}'