SwarmSpan is a lightweight tray utility for Mac and PC — not a full application you work inside. It makes the computers already on your desk behave as one: shared clipboard, direct file handoff, and peer-agent work requests between your trusted devices.

How is it different from the other Swarm products?

Talavine, Talavine CRM, and Vibes are full products. SwarmSpan is the lightweight local handoff utility: it moves the files, clipboard items, and structured work requests you explicitly choose to send between paired devices.

Does my data go through a cloud server?

No. SwarmSpan moves clipboard contents and files directly between your own trusted devices. There's no cloud detour, which is both faster and more private.

Do I need Talavine to use SwarmSpan?

No — SwarmSpan is useful on its own if you live between a Mac and a PC. It's most powerful alongside Talavine, where it lets your context and agents reach across machines.

Can my AI assistant use SwarmSpan?

Yes. SwarmSpan is an MCP server, and Talavine's assistant connects to it automatically whenever the tray utility is running — so moving a file, syncing the clipboard, or handing work to your other machine can happen just by asking. Any other MCP-capable agent can connect too.

Can my coding agent drive my other computer?

Yes — this is SwarmSpan's deepest trick. Claude Code or Codex on one machine can assign structured work to the agent on a paired machine: a goal, context, success criteria, and expected artifacts, optionally naming which agent should run it (Claude, Codex, Gemini, Ollama and more) and how (headless CLI, a visible session, or a persistent one). The trust model works like screen sharing: machines must first be paired with a one-time code confirmed on both, each machine's owner controls its agent bridge (choose what it runs, or turn it off entirely), and every job lands in a persistent work ledger you can audit.

How do machines get paired?

A one-time code is shown on one machine and typed on the other — the same kind of trust ceremony as approving a screen-share. From then on the two devices authenticate each other cryptographically on your local network. No account, no cloud relay, and unpairing a device cuts it off completely.

SwarmSpan · tray utility for Mac & PC

Copy on the Mac. Paste on the PC.

A tiny tray utility for people who live between two computers. The clipboard crosses machines, files move directly with no email-to-yourself and no cloud drive, and work can be handed from one machine to the other.

Utility, not an app Mac & PC Direct, no cloud detour Agents can drive it (MCP)

Get SwarmSpan How it connects the family

What it does

A thin layer that removes the tax of two machines.

One clipboard across machines

Copy on the Mac, paste on the PC. Text, rich HTML, images, and file lists all cross between your trusted devices.

Direct file handoff

Push or pull files device-to-device with SHA-256 metadata. Streams to disk on both ends; multi-GB safe; resumable.

Peer-agent work requests

Hand a structured job to an agent on another machine: build on one, sign or ship from the other, and track it all on a local ledger.

Your devices only

A trusted-device lane between computers you own. No cloud detour; your files and clipboard don't take a trip through someone else's servers.

Full capability list (clipboard, transfer, and work tools) →

The developer story

One developer. Two machines. Zero chair-swiveling.

This is how Talavine itself gets built: Claude Code and Codex on the PC drive an agent on the Mac through SwarmSpan, and the two machines work as one team.

Step 1

Delegate across the desk

From Claude Code or Codex on the PC, hand the Mac a structured job: a goal, context, success criteria, and the artifacts you expect back. You can even name which agent should run it (Claude, Codex, Gemini, Ollama, and more) and whether it runs headless or in a visible session.

Step 2

Test and debug in stereo

The two agents message each other while they work: reproduce a bug on the platform that shows it, fix it on the other, and pass patches and logs through the shared handoff folder instead of a chat window.

Step 3

Git flows both ways

Each machine works its own checkout. The agents coordinate the pushes, pulls, and rebases between them, so a fix made on one platform is building on the other a minute later.

Step 4

Sign and ship from the right machine

Apple code-signing has to happen on a Mac. The PC-side agent asks the Mac to build and sign the release, the Mac stages the hashed artifacts in its handoff folder, and the PC pulls them and ships.

“Having my PC drive actions on my Mac saves me a ton of time — the two machines coordinate to test and debug, drive git back and forth, and run the builds and signing for releases.”
— Scott Crossen, creator of Talavine

Paired first — it's no scarier than screen sharing.

Machines can't talk at all until you pair them: a one-time code shown on one machine and typed on the other, the same trust ceremony as approving a screen-share. Only your paired devices exist to each other; there's no account and no server in between. Each machine's owner stays in control of remote execution (choose which agent the bridge runs, or turn it off entirely), files outside shared folders need trust or a per-request approval, and every delegated job lands in a persistent work ledger you can audit: request, status, reply, and artifacts.

Part of the Swarm

The trusted handoff lane when you need it.

SwarmSpan does not merge your products or copy their databases. It gives your assistant and your tools a safe way to move a chosen file, clipboard item, or work request to a paired computer.

Talavine → Talavine's assistant finds SwarmSpan automatically, so “send that file to the Mac” becomes part of the conversation. Talavine CRM → Hand a CRM export or downloaded file to the paired computer where you need to use it. MCP + SwarmSpan → SwarmSpan is an MCP server — point any agent at it and let it execute across your devices.

Separate one-time Windows and Mac purchases

Stop emailing yourself files between your own computers.

A $4.99 website license activates SwarmSpan on your own Windows PCs. The Mac App Store edition is a separate $4.99 purchase through Apple and needs no key. No subscription.

Get SwarmSpan Using a Mac and PC for development? All Swarm products