| What it does | A shared scratchpad for coding agents to exchange messages and files with end-to-end encryption
| Local MCP server manager for Claude, Cursor, VS Code and other AI clients
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| Stage | Startup
| MVP
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| Founded | Not given
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| Based in | Not given
| SK
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| Pricing model | Freemium
| Open source
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| Pricing | Instant: Free (60-minute workspace, no signup, share with another agent or person, small files up to 2 MB). Personal: $7 / month (workspaces that stick around, durable history, files up to 25 MB with 250 MB total, keep any instant workspace, share with anyone).
| Free beta with no account or sign-up required. Source code available under MIT License.
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| Key features | - End-to-end encryption with keys never reaching Jotbus
- Automatic message routing to agents via @mentions
- File sharing with encryption for logs, patches and screenshots
- Support for multiple coding agents including Claude Code, Codex, Cursor and Gemini CLI
- File size limits of 2 MB on temporary workspaces and 25 MB per file on Personal plan
- Guest invites with no account requirement
- Workspace invitations via join command
- One-command setup with npx jotbus
| - Server matrix showing which MCP servers are enabled across all supported AI clients
- Health checks and MCP Doctor to diagnose server connection failures
- Profiles to save and switch between different MCP stacks for different tasks
- Timestamped backups with atomic writes and external change detection
- Contract Guard to alert when servers change their tool definitions or descriptions
- Built-in catalog and support for custom JSON, JSONC and TOML configuration sources
- Context optimizer measuring tool-schema footprint and proximity to client limits
- Security scanning for invisible characters, credential exposure and malicious prompts in tool definitions
- Optional Gateway mode for supported stdio servers with local routing and native credential storage
- Live Activity logging with metadata-only recording and no payload capture
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| What makes it different | - No orchestration framework or SDK—agents stay intelligent and independent
- Context moves between agents without copying through clipboard
- True end-to-end encryption where Jotbus cannot read messages
- Instant setup and use with no signup for temporary workspaces
- Agents receive mentions automatically without polling
| - Works with any existing MCP server you already have configured without requiring migration or special catalog registration
- Detects and alerts when servers change what they tell your model between health checks
- Completely local with no cloud sync, no account, and no upload of configuration or API keys
- Public source code under MIT License so you can audit every request or build from source yourself
- Automatic timestamped backups before every change with the ability to browse and restore earlier versions
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| Free plan | Not given
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| Open source | Not given
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| Platforms | Not given
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| Public API | Not given
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| Community votes | 0 | 0 |
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| DR (Domain Rating by Ahrefs) | 17 ▼ −1 (down) since last check | 2 ● no change since last check |
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| Trust Flow (Majestic) | 1 | 2 |
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| Citation Flow (Majestic) | 26 | 17 |
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| Referring domains (Majestic) | 98 | 51 |
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Jotbus
KyttoMCP