ChatGPT and Codex

Connect Nysa so ChatGPT can brief you before a call, recall what was agreed in past meetings, and look up anyone your team works with. You sign in with your own Nysa account, so ChatGPT sees only what you can already see.

Note

You need a Nysa account in a Company workspace. On ChatGPT Business and Enterprise plans, an admin may need to enable Nysa first.

ChatGPT

1. In ChatGPT, open Apps and search for Nysa.
2. Select Connect and sign in with the Google account you use for Nysa.
3. Start a new conversation. ChatGPT picks up the Nysa tools automatically.

Can’t find Nysa in Apps? Turn on Developer mode in ChatGPT settings under Apps → Advanced settings, then create an app with https://mcp.usenysa.com/mcp. Developer mode needs a paid ChatGPT plan.

Codex

Sign in with OAuth:

codex mcp add nysa --url https://mcp.usenysa.com/mcp
codex mcp login nysa

Or use an API key stored as NYSA_API_KEY:

codex mcp add nysa --url https://mcp.usenysa.com/mcp --bearer-token-env-var NYSA_API_KEY

Start a new session so Codex loads the Nysa tools. Check the connection with codex mcp list.

What ChatGPT can do

Area	What ChatGPT can do
Company brain	Search what your team knows from meetings, email and notes, brief you on a person or company, and add or correct facts.
Meetings	Find recent meetings, see who was in them, read summaries and transcripts you have access to, and list your commitments.
People, companies and projects	Browse the directory, read projects, and link meetings to a project.
Knowledge and skills	Read how your team works, and find or save playbooks for your agents.
Calendar	Read your own calendar events. If your workspace turns on calendar changes, schedule, move or cancel meetings you organize and turn recording on or off, only when you ask.
Your memory	Read and update your private notes for ChatGPT, like nicknames and priorities.

See every tool in the tools reference.

Import your existing brain

Already keep memory in GBrain, an Obsidian vault, or a folder of Markdown notes? Ask ChatGPT to import it. ChatGPT shows you a preview of the people, companies and notes it will add, and nothing changes until you say yes. Imported notes follow the same scopes as everything else, and you can undo the whole import in one step. Importing needs an agent with file access and a shell, like Claude Code or Codex.

Full guide: Import your existing brain.

Your access, nothing more

• Scoped to you: ChatGPT sees only what your Nysa account can see.
• Checked every call: leave the workspace and the next request is denied. Each call is audited.
• Writes only when you ask: ChatGPT updates Nysa only on request, and changes your calendar only if your workspace allows it. It can't send email.

More in Who sees what.

Troubleshooting

Problem	Fix
Nysa isn’t in Apps	Turn on Developer mode and create an app with https://mcp.usenysa.com/mcp.
The Nysa tools don’t appear	Start a new conversation (or Codex session) after connecting.
Sign-in loops or fails	Disconnect Nysa, connect it again, and sign in with the Google account your workspace uses.
Results say “unavailable”	You may no longer belong to the workspace, or the item was removed. Ask your workspace owner.
How do I disconnect?	Disconnect Nysa from Apps in ChatGPT settings, or run codex mcp remove nysa.

Still stuck? Email hello@usenysa.com.