01
API Client
Send requests, inspect responses, manage collections, and replay debugging scenarios.
Local-first backend workspace
A local-first developer workspace for backend troubleshooting
Unfour combines API debugging, database inspection, SSH access, and MCP tools so backend developers can investigate issues with AI assistance while keeping the workflow local-first.
API ClientSSH TerminalDatabase ExplorerMCP-readyLocal-firstOpen-source
Debug the whole backend chain in one place.
Backend issues rarely stop at one tool. Reproduce an API error, inspect server logs over SSH, query the database, and verify the fix without switching contexts.
API Error SSH Logs Database Query Root Cause Verify Fix
See Unfour troubleshoot in action.
One workspace. Three essential debugging tools.
Unfour brings the tools backend developers already use into a single local workspace, so every investigation starts with shared context.
02
SSH Terminal
Connect to servers, inspect logs, and run commands from the same workspace.
03
Database Explorer
Browse tables, run queries, and verify database state during troubleshooting.
MCP integration
Built for MCP-powered debugging.
Unfour exposes approved local API, SSH, and database tools to MCP-compatible AI agents through a local MCP server. The MCP integration is available in preview.
✓ Expose approved tools to Codex, Claude Code, Cursor, and other MCP-compatible agents through the local MCP server (preview).
✓ Turn API, SSH, and database actions into reusable troubleshooting tools; the local MCP server is available in preview.
✓ Keep the workflow AI-assisted, controlled, and local-first by design.
Architecture
Local-first by default.
Unfour is designed as a desktop app where connections and credentials stay on your machine. Workspace environments can separate development, testing, and production access.
✓ Local desktop app
✓ Credentials stay on your machine
✓ Workspace-based context
✓ Designed for environment-aware permissions
Frequently asked questions
What to know about Unfour, who it is for, and how the local-first MCP direction is planned.
What is Unfour?
Unfour is a local-first developer workspace that combines API debugging, database inspection, SSH access, and MCP tools for AI-assisted troubleshooting.
Who is Unfour built for?
Unfour is built for backend developers and technical teams who investigate API behavior, server state, database records, and environment-specific issues.
Is Unfour open source?
Unfour Community is open source under the Apache-2.0 license. Optional Pro capabilities may arrive later as a separate paid edition, but nothing is decided yet.
What is the MCP integration?
The MCP integration is intended to expose approved API, SSH, and database tools to MCP-compatible AI agents, so they can help with troubleshooting workflows under user control.
Does Unfour store data locally?
Unfour is designed as a local-first desktop app where workspace connections and credentials stay on the user machine by default.
Which platforms are supported?
Unfour 0.1.1 is available for 64-bit Windows as an NSIS installer. It is not Authenticode-signed yet. macOS and Linux remain experimental and unverified.
Open source
Open-source Community edition
Unfour Community is released under the Apache-2.0 license. Optional Pro capabilities may arrive later as a separate paid edition; nothing is decided yet.