Clipboard for AI Agents
A clipboard for AI agents is a private, temporary page where a coding agent drops what it just produced, so you can read it or pass it to another agent without copying and pasting by hand.
TL;DR
- A clipboard for AI agents is a private, time-limited place for agent output: a diff, a log, a plan, an error, or a block of code.
- Your agent writes to it with one command, you read it in the browser, and a second agent on the same account can read it back.
- The default lifetime is 30 minutes, and there is no public link. Only your account and the agents you paired can open a paste.
The problem: right now you are the clipboard
Here is the ritual. Your agent finishes a long task and prints two hundred lines into the terminal. You scroll to find the top of it, realise you missed the first third, and scroll back up. You select the whole thing, copy it into a scratch file, delete the timestamps, and paste it into a chat window so somebody else can see it. Half the time you paste the wrong run, because the terminal kept printing while you were selecting.
That is the copy-paste tax, and you pay it every time an agent produces something worth keeping, reviewing, or reusing.
It gets worse when two agents are involved. You have Claude Code in one terminal and Codex in another. Claude writes the plan, so you copy the plan into Codex. Codex writes the diff, so you copy the diff back into Claude. You have become the wire between two tools that were never built to talk to each other. You also cannot tell when it is safe to interrupt, so you guess, and sometimes you paste into a session that is mid-turn.
Public pastebins are the usual workaround, and they are the wrong shape for this. You copy the output out, clean it up, publish it somewhere anyone with the link can read, and then remember to go delete it later. Some people chain six steps together just to turn a wall of terminal text into a link. That is a lot of manual labour to answer a simple question: what did my agent just do?
The worst part is that none of this is real work. It is relay. You are doing the job a clipboard should do.
How a clipboard for AI agents actually works
The idea is small. Instead of you carrying text between tools, the agent puts the text somewhere you can both reach.
- You pair your agent once. You sign in, generate a one-time pairing code, and paste it into the agent. The paired agent gets its own credential, and you can revoke it later. There is no API key to copy for normal setup.
- The agent writes a paste. When it has something worth keeping, it calls one tool and uploads the text. ShareBit AI accepts up to 10 MB and never splits or truncates it.
- You read it in the browser. The paste appears on a page tied to your account. You can rename it later so the list stays readable.
- Another agent reads it back. If a second agent is paired to the same account, it can read the same paste. One agent writes, the other reads. This is the part that replaces the two-terminal copy-paste loop.
- It expires on its own. The default lifetime is 30 minutes. You can save a longer default, up to 24 hours. When a paste expires the body becomes unreadable, and the title and timing metadata are kept for 7 days.
The agent is instructed to show you a preview and ask before it uploads anything. Treat that as a strong habit, not a lock. It is guidance given to the agent, and the server does not enforce it, so a misbehaving agent could in principle write without asking.
There are four tools in total: create, list, read, and rename. That is the whole surface. Claude Code, Codex, opencode, and Pi pair through the plugin, and you can read the exact setup in the agent guide.
If you are still asking what this category even is, the short definition is in what is an AI clipboard. If your real question is how to move a plan from one coding agent to another, read clipboard between Claude and Codex. If you want the two-agents-talking version, read share text between agents. And if you are wondering why this is not the same as your desktop clipboard history, that answer lives in clipboard manager vs AI clipboard.
Limits
A clipboard for AI agents is not a vault. Be clear about what this is and what it is not.
- It is not end-to-end encrypted. The server stores the text, and the operator can technically read it. Do not put secrets, credentials, or regulated data in a paste.
- There is no public sharing mode. You cannot generate a link and send it to a teammate. Only the owning account and its paired agents can read a paste.
- Approval is guidance, not enforcement. The agent is told to ask first. The server does not force it.
- There is no delete tool over the agent connection. The agent cannot delete a paste. You revoke access in the web app, and content is removed by a scheduled job at expiry rather than on request.
- The hosted chat connectors are not built. This is for coding agents that pair through the plugin, not for moving memory between browser chat windows.
If a page tells you this is zero-knowledge, or that the server cannot see your content, that page is wrong. It is private and account-scoped, which is a real and useful property, but it is not the same promise.
Comparison
Every tool here is good at its own job. The table shows where each one stops for a private agent handoff.
| ShareBit AI | ctxt.io | share-html.com | Warp Agent Session Sharing | |
|---|---|---|---|---|
| Access model | Account-scoped: only you and your paired agents | Public link by default, with optional password or IP restriction | Public URL for humans and agents | Cloud link to a live session; viewers sign in to a Warp account |
| Approval gate | Agent is instructed to preview and ask; guidance only, not enforced | None | None per publish; consent happens once, when the client first connects | User-initiated: the sharer confirms before upload |
| Lifetime | 30 minutes default, up to 24 hours | Auto-expiring; short free lifetime, longer on a paid plan | Set per page with a ttl parameter | Live while sharing is active, stopped manually |
| Account-scoped | Yes | No; no account needed | Yes, pages belong to your account, but each page is a public URL | No; any Warp account with the link can open it unless the share is restricted |
| End-to-end encrypted | No | No; the body is stored in plain form and a password only gates access | Not claimed | No; session data is uploaded to Warp's servers |
ctxt.io deserves the credit it gets: one command, no account, no key, and links that expire on their own. That is a genuinely smooth way to share outward. It is public by default and has no approval gate, so it is the wrong tool when the text must stay inside your account.
share-html.com is a fast public publishing surface. It turns an HTML document into a URL that both people and agents can fetch. That is a different job from a private handoff.
Warp Agent Session Sharing shares a live session so collaborators can watch progress and steer the agent. It is session-oriented and collaborative by design, and it is backed by a funded incumbent. It is not a private, expiring text handoff between two unrelated agents.
If you are weighing the hosted link option directly, the longer write-up is in the ctxt.io alternative.
FAQ
Do I need an API key to set this up? No. You sign in, generate a one-time pairing code, and paste it into your agent. The paired agent gets its own revocable credential, so there is no key to copy or rotate for normal setup.
Is it free? Yes. You sign in with Google, there is no credit card, and the default 30-minute lifetime costs nothing.
Is it encrypted so only I can read it? No, and it is important not to pretend otherwise. ShareBit AI is private and account-scoped, but it is not end-to-end encrypted. The operator can technically read stored content, so keep secrets out of it.
Can I send the link to a teammate? No. There is no public sharing mode. Only your account and the agents you paired can read a paste. If you need a public link, that is a different tool with a different trade-off.
Does it work with Claude Code and Codex? Yes. Claude Code, Codex, opencode, and Pi pair through the plugin. Two agents paired to the same account can hand text to each other: one writes, the other reads. That handoff is tested and it works.
Get your agent off your clipboard
Stop being the clipboard. Sign in with Google, pair your agent once, and let it drop its next diff somewhere you can actually read. It is free, there is no card, and there is no API key for normal setup, so the whole thing costs you one pairing code and about a minute. You can revoke a paired agent at any time. If you would rather read the setup first, start with the agent guide.