Zephyr Scale Mcp

io.github.vilaabo/zephyr-scale-mcp · v1.0.0

Zephyr Scale on self-hosted Jira Server/DC: test cases, cycles, executions, plans and attachments

Source code Set it up

Connect Runs on your machine

Terminal

claude mcp add zephyr-scale-mcp -e JIRA_BASE_URL=<JIRA_BASE_URL> -e JIRA_PAT=<JIRA_PAT> -e JIRA_AUTH=<JIRA_AUTH> -e JIRA_USERNAME=<JIRA_USERNAME> -e JIRA_PASSWORD=<JIRA_PASSWORD> -e ZEPHYR_DEFAULT_PROJECT_KEY=<ZEPHYR_DEFAULT_PROJECT_KEY> -e ZEPHYR_ALLOW_INTERNAL_API=<ZEPHYR_ALLOW_INTERNAL_API> -e ZEPHYR_READONLY=<ZEPHYR_READONLY> -e JIRA_TLS_REJECT_UNAUTHORIZED=<JIRA_TLS_REJECT_UNAUTHORIZED> -e JIRA_TIMEOUT_MS=<JIRA_TIMEOUT_MS> -e JIRA_MAX_RETRIES=<JIRA_MAX_RETRIES> -e ZEPHYR_LOG_LEVEL=<ZEPHYR_LOG_LEVEL> -- npx -y [email protected]

claude_desktop_config.json

{
  "mcpServers": {
    "zephyr-scale-mcp": {
      "command": "npx",
      "args": [
        "-y",
        "[email protected]"
      ],
      "env": {
        "JIRA_BASE_URL": "<JIRA_BASE_URL>",
        "JIRA_PAT": "<JIRA_PAT>",
        "JIRA_AUTH": "<JIRA_AUTH>",
        "JIRA_USERNAME": "<JIRA_USERNAME>",
        "JIRA_PASSWORD": "<JIRA_PASSWORD>",
        "ZEPHYR_DEFAULT_PROJECT_KEY": "<ZEPHYR_DEFAULT_PROJECT_KEY>",
        "ZEPHYR_ALLOW_INTERNAL_API": "<ZEPHYR_ALLOW_INTERNAL_API>",
        "ZEPHYR_READONLY": "<ZEPHYR_READONLY>",
        "JIRA_TLS_REJECT_UNAUTHORIZED": "<JIRA_TLS_REJECT_UNAUTHORIZED>",
        "JIRA_TIMEOUT_MS": "<JIRA_TIMEOUT_MS>",
        "JIRA_MAX_RETRIES": "<JIRA_MAX_RETRIES>",
        "ZEPHYR_LOG_LEVEL": "<ZEPHYR_LOG_LEVEL>"
      }
    }
  }
}

~/.cursor/mcp.json

{
  "mcpServers": {
    "zephyr-scale-mcp": {
      "command": "npx",
      "args": [
        "-y",
        "[email protected]"
      ],
      "env": {
        "JIRA_BASE_URL": "<JIRA_BASE_URL>",
        "JIRA_PAT": "<JIRA_PAT>",
        "JIRA_AUTH": "<JIRA_AUTH>",
        "JIRA_USERNAME": "<JIRA_USERNAME>",
        "JIRA_PASSWORD": "<JIRA_PASSWORD>",
        "ZEPHYR_DEFAULT_PROJECT_KEY": "<ZEPHYR_DEFAULT_PROJECT_KEY>",
        "ZEPHYR_ALLOW_INTERNAL_API": "<ZEPHYR_ALLOW_INTERNAL_API>",
        "ZEPHYR_READONLY": "<ZEPHYR_READONLY>",
        "JIRA_TLS_REJECT_UNAUTHORIZED": "<JIRA_TLS_REJECT_UNAUTHORIZED>",
        "JIRA_TIMEOUT_MS": "<JIRA_TIMEOUT_MS>",
        "JIRA_MAX_RETRIES": "<JIRA_MAX_RETRIES>",
        "ZEPHYR_LOG_LEVEL": "<ZEPHYR_LOG_LEVEL>"
      }
    }
  }
}

.vscode/mcp.json

{
  "servers": {
    "zephyr-scale-mcp": {
      "type": "stdio",
      "command": "npx",
      "args": [
        "-y",
        "[email protected]"
      ],
      "env": {
        "JIRA_BASE_URL": "<JIRA_BASE_URL>",
        "JIRA_PAT": "<JIRA_PAT>",
        "JIRA_AUTH": "<JIRA_AUTH>",
        "JIRA_USERNAME": "<JIRA_USERNAME>",
        "JIRA_PASSWORD": "<JIRA_PASSWORD>",
        "ZEPHYR_DEFAULT_PROJECT_KEY": "<ZEPHYR_DEFAULT_PROJECT_KEY>",
        "ZEPHYR_ALLOW_INTERNAL_API": "<ZEPHYR_ALLOW_INTERNAL_API>",
        "ZEPHYR_READONLY": "<ZEPHYR_READONLY>",
        "JIRA_TLS_REJECT_UNAUTHORIZED": "<JIRA_TLS_REJECT_UNAUTHORIZED>",
        "JIRA_TIMEOUT_MS": "<JIRA_TIMEOUT_MS>",
        "JIRA_MAX_RETRIES": "<JIRA_MAX_RETRIES>",
        "ZEPHYR_LOG_LEVEL": "<ZEPHYR_LOG_LEVEL>"
      }
    }
  }
}

Replace the values in angle brackets with your own. Keys stay on your machine; we never see them.

Tools

This server runs locally, so its tools are listed by your MCP client once it starts.

Environment variables

Name	Description
`JIRA_BASE_URL` Required	Jira base URL without a trailing slash, e.g. https://jira.example.com
`JIRA_PAT` Optional, secret	Jira Data Center Personal Access Token (used when JIRA_AUTH=pat, the default)
`JIRA_AUTH` Optional	Authentication mode: pat (default) or basic
`JIRA_USERNAME` Optional	Username for JIRA_AUTH=basic
`JIRA_PASSWORD` Optional, secret	Password for JIRA_AUTH=basic
`ZEPHYR_DEFAULT_PROJECT_KEY` Optional	Project key used when a tool is called without projectKey
`ZEPHYR_ALLOW_INTERNAL_API` Optional	true registers 11 UNOFFICIAL tools backed by the internal /rest/tests/1.0 API the vendor does not support: editing a test cycle in place (rename/move, add/remove/reorder its cases), editing or DELETING individual executions, linking a cycle to a test plan, the folder tree, folder deletion, exact st…
`ZEPHYR_READONLY` Optional	true disables all write tools
`JIRA_TLS_REJECT_UNAUTHORIZED` Optional	false allows self-signed certificates (disables TLS verification)
`JIRA_TIMEOUT_MS` Optional	Timeout of a single HTTP request in milliseconds (default 30000)
`JIRA_MAX_RETRIES` Optional	Retries for GET requests and for 429/503 responses, honoring Retry-After (default 2)
`ZEPHYR_LOG_LEVEL` Optional	Log verbosity: debug \| info \| warn \| error (default info; all logs go to stderr)

Details

Package	`[email protected]` (NPM, stdio)
First published	31 Jul 2026
Last updated	31 Jul 2026
Registry name	`io.github.vilaabo/zephyr-scale-mcp`

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Installed and run on your own machine, so there is no public endpoint to check.

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