mcp-servers

Source-available MCP servers by Mindstone. Works with any MCP host — Claude Desktop, Cursor, Rebel, and others.

Connectors

Connector	Description
apple-shortcuts	Run and list Apple Shortcuts on macOS via the shortcuts CLI
browser-automation	Headless browser control via accessibility snapshots — navigate, fill forms, click, and screenshot pages via the agent-browser CLI
elevenlabs	Generate speech, music, and sound effects, browse voices, and transcribe audio via the ElevenLabs API
email-imap	Read, search, send, and manage emails through IMAP and SMTP
fathom	List and search meetings, view details, read transcripts, and manage teams via Fathom AI
freshdesk	Manage helpdesk tickets, search support requests, reply to customers, and add internal notes
gamma	Create AI-powered presentations, documents, webpages, and social posts via Gamma
google-analytics	Discover GA4 accounts and properties, explore the live schema, and run reports via the Google Analytics API
humaans	Query employee profiles, job roles, time-away requests, and company info via Humaans HR
kling	Generate AI videos from text descriptions or images via Kling AI
mixmax	Manage sequences, send tracked emails, use templates, and monitor engagement via Mixmax
nano-banana	Generate and edit images using Google Gemini's AI capabilities
napkin	Generate professional visuals — diagrams, infographics, and illustrations — from text via Napkin AI
office	Read and edit Word documents, Excel workbooks, and PowerPoint presentations from desktop Microsoft 365 via an Office Add-in sidecar
outreach	Manage prospects, sequences, accounts, tasks, and mailings via the Outreach sales engagement API
pandadoc	Create, send, and manage documents, templates, and e-signatures via PandaDoc
quickbooks	Manage invoices, bills, customers, vendors, employees, and accounts in QuickBooks Online
retell-ai	Place voice-agent phone calls, manage agents and LLM prompts, and discover voices via the Retell AI API
runway	Generate AI video, images, audio, speech, and sound effects via Runway ML
salesforce	Manage accounts, contacts, opportunities, leads, tasks, users, and custom objects via the Salesforce API
servicenow	Manage incidents, change requests, users, and knowledge base articles in ServiceNow
talentlms	Manage users, courses, groups, branches, enrolments, and assessments in TalentLMS
workday	Query workers, profiles, and organizations in Workday HCM
zendesk	Manage tickets, macros, users, and views in Zendesk Support

Quick Start

Each server builds independently:

cd connectors/<name>
npm install
npm run build

Or run directly via npx (once published):

npx -y @mindstone-engineering/mcp-server-zendesk

See each server's README for configuration and host setup instructions. Some connectors require additional environment variables to opt into specific behaviour (e.g. QB_ALLOW_PROD_WRITES for QuickBooks production writes, MCP_WORKSPACE_PATH for sandboxed file reads, BROWSER_AUTOMATION_ALLOW_EVAL for browser-automation script eval) — see the per-connector READMEs for the full list.

Security & Hardening

This monorepo follows a defence-in-depth posture for tool-call hosts. Highlights include:

• Workflow safety. GitHub Actions workflows are env-fy'd against script injection (CWE-94), pinned to commit SHAs for third-party actions, and granted least-privilege permissions: blocks.
• Untrusted-content envelopes. External content from email, helpdesk, and ticketing systems (email-imap, freshdesk, zendesk) is wrapped in <untrusted-content source="..."> envelopes with close-tag breakout escaping, so an LLM host can recognise and refuse instruction-injection attempts.
• Workspace sandboxing. File-uploading connectors (nano-banana, pandadoc, elevenlabs) constrain reads to MCP_WORKSPACE_PATH (or os.tmpdir()) with canonical-prefix containment that handles symlinked roots like /tmp → /private/tmp.
• Secure-by-default writes. Production-impacting writes (QuickBooks invoices/bills/customers/vendors) require an explicit QB_ALLOW_PROD_WRITES=1 opt-in env var; outreach prospect-enrolment and mixmax sequence-recipient tools carry destructiveHint: true so hosts surface confirmation prompts.
• SSRF & path traversal. Download connectors (napkin, runway) enforce host allow-lists, manual-redirect handling, and symlink-safe write paths under a configurable root.
• Loopback OAuth bind. Connectors with local OAuth callback servers (salesforce, outreach) hard-code 127.0.0.1, ignoring any MCP_OAUTH_BIND_HOST override.
• E.164 validation. Outbound phone-call tools (retell-ai) reject non-E.164 numbers before any upstream API call.

For per-connector security notes, see each connector's README.

To report a vulnerability, please see SECURITY.md.

Licence

Each connector is licensed under FSL-1.1-MIT — see the LICENSE file in each connector directory for details.