MCP servers · 0n Automation Builder · MCP server
Connect Codex CLI to 0n Automation Builder
One line gives Codex CLI your 0n Automation Builder account as tools: 6 endpoints, generate workflow, test workflow, activate workflow, called with your own connection. No key in the prompt, a receipt for every call, revoke Codex CLI's access alone any time.
Three steps
- Create a free 0n3 account and connect 0n Automation Builder. Paste a key or sign in; it lands in your vault, encrypted.
- Install 0n3 into Codex CLI. OpenAI's terminal agent reads 0n3 over Streamable HTTP with a token from your environment.
- Ask Codex CLI: whoami. Then: "Generate a workflow in 0n Automation Builder".
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 0n Automation Builder
Generate workflow · Natural language → .0n workflow JSON (non-mutating)2
Generate a workflow
POST /api/automations/generateList workflows
GET /api/automations/listTest workflow · Dry-run a workflow against sample input (non-mutating)1
Test workflow
POST /api/automations/executeActivate workflow · Save + register trigger (cron or webhook) + activate1
Activate workflow
POST /api/automations/activateRun workflow · Execute a saved workflow on-demand1
Run a workflow
POST /api/automations/executeSuggest · AI-powered next-capability suggestions for a workflow-in-progress1
Suggest
POST /api/automations/suggestList workflows · List the user's saved workflows0
List the user's saved workflows
0n Automation Builder in other AI clients
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