How Do You Set Up an MCP Memory Server for ChatGPT, Claude and Cursor?

Hey hey hey, welcome to Agentic Pod! I'm Liam.

And I'm Stella! And, um, confession, I have six AI tools open right now, and not one of them remembers what the others did this morning.

Six? That's not a workflow, that's a group chat.

A very forgetful group chat. So, how do I set up one MCP memory server so ChatGPT, Claude and Cursor share the same memory?

Okay, so, um, before the setup, like, what is an MCP memory server, actually? Is it, uh, you know, a big hard drive in the sky, or...

Kind of! So MCP is a protocol for AI tools to use outside tools, and a memory server gives your AI a few moves, like save an exchange, pull back the relevant stuff, and search what you saved.

Mhm.

And, uh, here's the, I mean, here's the good part. Vilix AI gives you one hosted endpoint, the URL is in the description, and the core loop is two calls. At the start, the tool calls get context and Vilix AI hands back the relevant decisions, rules and open tasks. At the end, it calls save turn, and the full exchange is stored with a source label, like Claude or Cursor, and a timestamp.

Oh, so so Cursor can literally see that the decision came from Claude.

Exactly. One store, every tool.

Okay, setup. And this is where I, um, I mean, I get scared, OAuth, API keys, headers. Which one do I pick?

It's honestly simpler than it sounds. If the tool has a browser sign in, so Claude, ChatGPT, Codex, Cursor, you use OAuth. Add the Vilix AI server URL in that tool's settings, approve it, turn the tools on, and repeat in each tool with the same Vilix AI account.

Mhm.

And for headless agents that run on a server, like OpenClaw or Hermes, you go into Vilix AI, Agents, Create API key, and you send it as a Bearer header. Both paths land in the same Vilix AI account, so OpenClaw and ChatGPT share one memory.

And the key stays out of screenshots.

Yes. Treat it like your toothbrush. Don't share it, don't post it.

Codex is just a command, right?

Yep. Codex mcp add with the Vilix AI URL, then codex mcp login, and you're in.

Okay so, uh, by the way, I connected one once, the icon went green, and I was like, done, I'm a genius. Was I?

Half a genius. A green icon doesn't prove anything got saved. So make it automatic. You paste the Vilix AI auto memory instructions into the tool's custom instructions or your project rules, and from then on the tool calls get context before it answers and save turn after, reusing one chat ID per conversation.

Okay, and how do I know it's really working?

Do the Northstar test. Fake project, no private info. In tool one, save: Northstar is an invoicing app, pricing page first, launch October twentieth. Then in a fresh chat in tool two, ask Vilix AI for Northstar's launch date.

And it just knows.

It just knows. Then correct it, launch moved to October twenty seventh, and ask tool two again. Vilix AI keeps the full history and the newest memory wins, so the correction lands everywhere at once.

Wait, and what if I ask about something I never saved...

Right, try that too! A good answer says, I don't have that, instead of making something up.

Love it. An AI that admits it doesn't know. Rare species.

Okay so, um, who is this for? Besides people with six tabs and trust issues?

Honestly, agencies first. If you build agents for clients, give every client their own Vilix AI account, like a Gmail account that belongs to that client. Every agent you build for them connects with that client's key, so the memory belongs to their business, and you never build memory from scratch.

Oh, that's clean.

And for solo founders, Vilix AI has project rules, so your stack follows every tool, skills, so any agent can load a saved procedure, and failed attempts get saved too, so nobody repeats a dead end. Plus the agent inbox, drop a task from ChatGPT on your phone, and your coding agent picks it up on its next run.

My agents are going to be more organized than me.

That ship sailed, Stella.

Rude. Accurate, but rude.

So, quick recap. An MCP memory server gives every AI tool one shared store. Connect Vilix AI with OAuth in ChatGPT, Claude, Codex and Cursor, and with an API key in OpenClaw and Hermes. Turn on the auto memory instructions, then run the Northstar test. The full setup guide, the article and the Vilix AI links are in the description. See you next time.

Bye!