0n3
MCP servers · n8n · MCP server

Connect Codex CLI to n8n

One line gives Codex CLI your n8n account as tools: 14 endpoints, workflows, executions, credentials, called with your own connection. No key in the prompt, a receipt for every call, revoke Codex CLI's access alone any time.

Get the line for Codex CLIConnect n8n first

Three steps

  1. Create a free 0n3 account and connect n8n. Paste a key or sign in; it lands in your vault, encrypted.
  2. Install 0n3 into Codex CLI. OpenAI's terminal agent reads 0n3 over Streamable HTTP with a token from your environment.
  3. Ask Codex CLI: whoami. Then: "List workflows in n8n".
Put the token in your environment
export ON3_TOKEN="<your 0n token>"

Add it to your shell profile so Codex finds it next time.

The line above carries a placeholder; 0n3.app/install mints a real key named for Codex CLI and fills it in.

What Codex CLI can then do in n8n

Workflows · Create and manage automation workflows8
List workflowsGET /workflows
Get a workflowGET /workflows/{workflowId}
Create a workflowPOST /workflows
Update a workflowPUT /workflows/{workflowId}
Delete a workflowDELETE /workflows/{workflowId}
Activate workflowPATCH /workflows/{workflowId}
Deactivate workflowPATCH /workflows/{workflowId}
Run a workflowPOST /workflows/{workflowId}/run
Executions · View and manage workflow execution history3
List executionsGET /executions
Get an executionGET /executions/{executionId}
Delete an executionDELETE /executions/{executionId}
Credentials · Manage integration credentials3
List credentialsGET /credentials
Create a credentialPOST /credentials
Delete a credentialDELETE /credentials/{credentialId}
Trigger workflow · Trigger a workflow via webhook or API0
Trigger a workflow via webhook or API

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Codex CLI with other apps

Hostinger363 endpointsTelegram132 endpointsPipedrive95 endpointsResend67 endpointsSquare57 endpointsLinkedIn50 endpointsSlack45 endpointsFigma32 endpointsCloudConvert32 endpointseBay25 endpointsQuickBooks21 endpointsCloudflare21 endpoints