Your assistant, fully
fluent in your Mac.
Honeycrisp lets the AI you already use read a mail thread, check what is due today, look at the week ahead, fire off a quick reply, or pull up a contact, all in an instant and all on your own machine.
It is a small menu bar app with a bundled command line bridge for any MCP client. It is fast, it is genuinely private, and it works with whatever assistant you already have. Here is the short version:
- It is fast and native. It speaks to the system frameworks the apps already use, so requests come back right away with real, structured data instead of scraped text.
- It is completely private. Everything stays on your Mac. Nothing is uploaded ever, and the only record kept is a local activity list you can clear. Honeycrisp only sees the one thing you ask for, the moment you ask for it.
- It works with any assistant. Any MCP client can use it, so you are not locked into a single app or vendor.
If you are curious how it works, most tools like this drive your apps with AppleScript, spinning up a process and parsing loose text for every request. Honeycrisp speaks to the system frameworks directly instead, so the same request that used to crawl now comes back in a blink, with nothing brittle left to break.
There is no account, no cloud, and no telemetry. The only thing Honeycrisp reaches out for is its own updates: it checks a version file so it can tell you when a new release is ready, it sends nothing about you, and you can switch it off in Settings. Everything else works with your Mac offline, because the only machine involved is the one in front of you.
Honeycrisp speaks to five of the apps I live in every day. Each one is a real, first-class connection rather than a thin wrapper.
- Mail Pull the thread you half remember, summarize it, draft a reply that sounds like you, and mark it read when you are done.
- Reminders Check what is due today, capture the thing you just thought of, and tick items off in the conversation.
- Calendar See what is on today, look ahead at the week, and put new events on the books.
- Messages Catch up on the threads you missed and send a reply without reaching for your phone.
- Contacts Look someone up, fix a misspelled name, or save a new face the moment it comes up.
Here is what that looks like, sitting quietly in the menu bar.
It comes straight from the GitHub releases page,
signed and notarized. Unzip it, drop Honeycrisp in your Applications folder,
and point any MCP client at the bundled honeycrisp command.
The README walks through the setup, and macOS
asks before Honeycrisp touches anything.
Honeycrisp is free and open source under the MIT license. It is still early, and I am adding to it with care.
I built this because I was
tired of waiting.
I love using Apple apps personally and have built great workflows over the years to get the most out of them. As agentic workflows became a daily driver professionally, I wanted that same power using the apps I know and love.
After trying several MCP options for Apple, I ran into performance issues: reading and updating data inside apps was slow, and would often lock up an app entirely. Even worse, I had no clear view of what those MCPs could actually see or do on my behalf.
So Honeycrisp is here to be your fast, private, and transparent helper. It follows the MCP standard, so you can use it with any model you choose. It keeps a local-only log of every action it takes and lets you fine-tune permissions with a single click.
Just remember that while Honeycrisp doesn't upload your data anywhere, it's only as private as the model provider you choose. For a fully private setup, pair it with a local model running in something like Ollama or LM Studio, so nothing ever leaves your Mac.
I love eating a good Honeycrisp apple, and now my Mac seems to enjoy it too. :)
Christian