Shared memory
for your AI

Rafter is an MCP server that gives Claude, ChatGPT, Cursor and Claude Code one shared memory for your team — the skills and decisions everyone’s AI should already know.

Already have an AI tool open? Give it this line and let it take it from there.

set up https://app.heyrafter.xyz/SKILL.md

Works in

See it work

One person, then everyone.

Somebody on your team already worked out how to do it. Rafter keeps how they did it — so the next person’s AI can do it the same way, first try.

Accounting

Kari closed the year-end the firm's way.

Now Ole can too.

Hand-drawn ink illustration of Kari and Ole grinning as they high-five. — Month-end closev3

Marketing

Per built the campaign flow the way we like it.

Now Marte can too.

Hand-drawn ink illustration of Per and Marte smiling and giving each other a thumbs-up. — Campaign launchv2

Development

Siri mapped our safe path to prod.

Now Eirik can too.

Hand-drawn ink illustration of a junior developer giving a thumbs-up beside the ponytail senior developer. — Ship to prod, safelyv5

Analytics

Ingrid built the churn dashboard the way we read it.

Now Jonas can too.

Hand-drawn ink illustration of Ingrid and Jonas grinning as they fist-bump. — Churn dashboardv3

The knowledge graph

The right document finds you.

Olav used to spend hours finding the right documents to finish his analysis. Now he uses Rafter to find exactly what he’s looking for.

Rafter maps how every document, decision and skill connects — a knowledge graph of your firm — so a search follows the threads, not just the words.

Hand-drawn ink illustration of Olav, overjoyed, hands raised after instantly finding what he needed.

Wherever your team already works.

ChatGPT ⌄

+↑

Illustrations, not screenshots. Interfaces shown belong to their respective owners; Rafter is independent and unaffiliated.

Get started

Rafter connects over MCP, so it shows up inside the tool you already use. Two steps, and neither of them is a migration. Prefer the long form? Step-by-step guides for every tool.

01
Add the connector
Open Add custom connector on claude.ai and paste this URL.
```
https://app.heyrafter.xyz/api/mcp
```
A sign-in window opens as you add it. Works in the web and desktop apps.
1. Turn on Developer mode under Settings → Security.
  ChatGPT's own Settings → Security screen.
2. Then create a connector with this URL and OAuth authentication.
```
https://app.heyrafter.xyz/api/mcp
```
Developer mode is what lets ChatGPT add custom connectors; it flags them as elevated risk.
Run this in your terminal.
```
claude mcp add --transport http rafter https://app.heyrafter.xyz/api/mcp
```
Your browser opens to sign in. Verify with claude mcp list.
Add this to ~/.cursor/mcp.json, then reload Cursor.
```
{"mcpServers":{"rafter":{"url":"https://app.heyrafter.xyz/api/mcp"}}}
```
Cursor opens your browser to sign in on the first Rafter call.
Add this to ~/.codex/config.toml.
```
[mcp_servers.rafter]
command = "npx"
args = ["-y", "mcp-remote", "https://app.heyrafter.xyz/api/mcp"]
```
Restart codex — the sign-in link is printed on the first Rafter call.

Make it the habit

Paste this into your tool’s project or system instructions.

Check Rafter first: search our skills and memories before you answer, and save anything durable back with add_memory.

Then just ask in your own words.

Create your account

Onboard anybody in seconds, not months.