Unfour

Trace backend failures across API, SSH, and database in one local workspace

Use the API Client, SSH Terminal, and Database Explorer yourself, or let an MCP-compatible coding agent use approved tools to gather and verify runtime evidence. MCP provides the controlled interface to those capabilities in your local workspace.

Capabilities along the investigation path

API, SSH, and database tools follow the same troubleshooting workflow. Each can be used on its own; together they keep request, server, and data evidence in one local workspace.

Requests

API Client

Send and organize HTTP requests, inspect complete responses, and bring request evidence into the rest of the investigation.

  • Collections, folders, and saved requests
  • Query, headers, body, and auth
  • Environments, scripts, and OpenAPI
  • Response body, headers, cookies, and timing
Explore API Client

Servers

SSH Terminal

Connect to servers, inspect runtime evidence, work with remote files, and reuse multi-step operational tasks.

  • Interactive SSH terminal
  • SFTP file browsing and transfers
  • Command history
  • Reusable multi-step SSH tasks
Explore SSH Terminal

Data

Database Explorer

Inspect schema and data, edit supported rows, and run SQL when an API symptom needs database evidence.

  • SQLite, PostgreSQL, and MySQL
  • Schema and table browsing
  • Data inspection and supported row editing
  • Single or multi-statement SQL
Explore Database Explorer

AI-assisted

MCP Integration

Let a coding agent gather and verify runtime evidence with approved API, SSH, and database tools, alongside its own coding tools.

  • Local stdio MCP server
  • Workspace-scoped tools
  • Policy and confirmation boundaries
  • Codex, Cursor, and compatible clients
Explore MCP Integration

Follow the issue across the backend instead of rebuilding context

An API error is often only the first clue. Unfour keeps the request, server evidence, and database state in one workspace so you can continue the investigation without opening a separate app. You still choose each request, session, and query.

  1. 1. API request
  2. 2. SSH evidence
  3. 3. Database state
  4. 4. Verify fix
Read the API error debugging guide

The workspace stays on your desktop by default

Unfour is a desktop application. Connections, credentials, and workspace context remain local by default, while MCP tools operate through the capabilities and policies exposed by the local Unfour workspace.

Desktop application

Core troubleshooting runs from the Unfour application on your machine.

Local credentials

Saved credentials remain on the device by default and are resolved only for requested operations.

Workspace context

Projects, environments, connections, and tools stay organized around a local workspace.

Approved MCP capabilities

AI agents use the tools Unfour exposes, subject to workspace policy and confirmation checks.

Read the local-first development guide

Investigate the whole backend chain with less context switching

Download the single Unfour desktop application, or inspect the open-source core on GitHub.