Zephyr Scale MCP Server

Connect this server

This server runs on your own machine — install it with the package manager and the client starts it for you. Package name taken from the official registry entry.

claude mcp add zephyr-scale-mcp -e 'JIRA_BASE_URL=<JIRA_BASE_URL>' -- npx -y zephyr-scale-mcp

{
  "mcpServers": {
    "zephyr-scale-mcp": {
      "command": "npx",
      "args": [
        "-y",
        "zephyr-scale-mcp"
      ],
      "env": {
        "JIRA_BASE_URL": "<JIRA_BASE_URL>"
      }
    }
  }
}

[mcp_servers.zephyr-scale-mcp]
command = "npx"
args = ["-y", "zephyr-scale-mcp"]
env = { JIRA_BASE_URL = "<JIRA_BASE_URL>" }

{
  "mcpServers": {
    "zephyr-scale-mcp": {
      "command": "npx",
      "args": [
        "-y",
        "zephyr-scale-mcp"
      ],
      "env": {
        "JIRA_BASE_URL": "<JIRA_BASE_URL>"
      }
    }
  }
}

{
  "servers": {
    "zephyr-scale-mcp": {
      "type": "stdio",
      "command": "npx",
      "args": [
        "-y",
        "zephyr-scale-mcp"
      ],
      "env": {
        "JIRA_BASE_URL": "<JIRA_BASE_URL>"
      }
    }
  }
}

Put your own value in place of <JIRA_BASE_URL> (Jira base URL without a trailing slash, e.g. https://jira.example.com). The author’s registry entry marks it as required.

Optional settings from the registry entry, left out of the block above: JIRA_PAT (Jira Data Center Personal Access Token (used when JIRA_AUTH=pat, the default)), JIRA_AUTH (Authentication mode: pat (default) or basic), JIRA_USERNAME (Username for JIRA_AUTH=basic), JIRA_PASSWORD (Password for JIRA_AUTH=basic), ZEPHYR_DEFAULT_PROJECT_KEY (Project key used when a tool is called without projectKey), ZEPHYR_ALLOW_INTERNAL_API (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 status names and custom field definitions), ZEPHYR_READONLY (true disables all write tools), JIRA_TLS_REJECT_UNAUTHORIZED (false allows self-signed certificates (disables TLS verification)), JIRA_TIMEOUT_MS (Timeout of a single HTTP request in milliseconds (default 30000)), JIRA_MAX_RETRIES (Retries for GET requests and for 429/503 responses, honoring Retry-After (default 2)), ZEPHYR_LOG_LEVEL (Log verbosity: debug | info | warn | error (default info; all logs go to stderr)).