Help Scout MCP Server
for AI Agents
Connect your AI agent to StackOne's Help Scout MCP server and give it 36 MCP tools out of the box. Auth, tool execution, and security all managed.
StackOne 
Coverage
36 Agent Actions
Create, read, update, and delete across Help Scout — and extend your agent's capabilities with custom actions.
Authentication
Agent Tool Authentication
Per-user OAuth in one call. Your Help Scout MCP server gets session-scoped tokens with zero credentials stored on your infra.
Agent Auth →
Security
Agent Protection
Every Help Scout tool response scanned for prompt injection in milliseconds — 88.7% accuracy, all running on CPU.
Prompt Injection Defense →
Performance
Max Agent Context. Min Cost.
Free up to 96% of your agent's context window to enhance reasoning and reduce cost, on every Help Scout call.
Tools Discovery →What is the Help Scout MCP Server?
A Help Scout MCP server lets AI agents read and write Help Scout data through the Model Context Protocol — Anthropic's open standard for connecting LLMs to external tools. StackOne's Help Scout MCP server ships with 36 pre-built actions, fully extensible via the Connector Builder — plus managed authentication, prompt injection defense, observability, and agent execution runtime. Connect it from MCP clients like Claude Desktop, Claude Code, Cursor, Goose, and VS Code, or from agent frameworks like OpenAI Agents SDK, LangChain, and Vercel AI SDK.
All Help Scout MCP Tools
Every action from Help Scout's API, ready for your agent. Create, read, update, and delete — scoped to exactly what you need.
Conversations
- Create Conversation
Create a new conversation in a mailbox with an initial thread.
- List Conversations
Retrieve a paginated list of conversations across one or more mailboxes.
- Get Conversation
Retrieve the full details of a single conversation by its ID.
- Update Conversation
Apply a single JSON Patch operation to update one field of a conversation.
- Delete Conversation
Permanently delete a conversation by its ID.
Customers
- Create Customer
Create a new customer record in Help Scout.
- List Customers
Retrieve a paginated list of customers with optional filters.
- Get Customer
Retrieve full profile details of a single customer by their ID.
- Update Customer
Apply one or more JSON Patch operations to update a customer record.
- Delete Customer
Permanently delete a customer record by its ID.
Mailbox Saved Replys
- Create Mailbox Saved Reply
Create a new saved reply in a mailbox.
- Get Mailbox Saved Reply
Retrieve a single saved reply by its ID.
- Update Mailbox Saved Reply
Update an existing saved reply in a mailbox.
- Delete Mailbox Saved Reply
Permanently delete a saved reply from a mailbox.
Tags
- List Tags
Retrieve a paginated list of all tags in the Help Scout account.
- Get Tag
Retrieve a single tag by its ID.
Users
- List Users
Retrieve a paginated list of all users (agents) in the Help Scout account.
- Get User
Retrieve the full profile of a specific user by their ID.
Other (18)
- Create Reply Thread
Add an outgoing reply to an existing conversation.
- Create Note Thread
Add an internal note to an existing conversation.
- List Conversation Threads
Retrieve all threads (messages, notes, replies) for a conversation.
- List Customer Emails
Retrieve all email addresses associated with a specific customer.
- List Customer Phones
Retrieve all phone numbers associated with a specific customer.
- List Mailboxes
Retrieve a list of all mailboxes in the Help Scout account.
- Get Mailbox
Retrieve details of a specific mailbox by its ID.
- List Mailbox Custom Fields
Retrieve all custom fields configured for a mailbox.
- List Mailbox Folders
Retrieve all folders within a specific mailbox.
- List Mailbox Saved Replies
Retrieve all saved replies for a mailbox.
- List Teams
Retrieve a paginated list of all teams in the Help Scout account.
- List Team Members
Retrieve all members of a specific team.
- List User Statuses
Retrieve the current availability status of all users in the Help Scout account.
- Get User Status
Retrieve the current availability status of a specific user.
- Get Current User
Retrieve the profile of the currently authenticated user or app.
- List Workflows
Retrieve a paginated list of all workflows in the Help Scout account.
- Update Conversation Tags
Replace all tags on a conversation with a new set of tags.
- Run Workflow
Manually trigger a manual workflow on one or more conversations.
Help Scout AI Agent Use Cases
Connect your AI agent to Help Scout and help your team scale the support operations they run by hand today.
Use StackOne to connect your AI agent to your helpdesk, CRM, and messaging tools to automate ticket triage and priority routing.
ViewUse StackOne to connect your AI agent to your telephony, CRM, and messaging tools to automate voice call summarization and CRM logging.
ViewUse StackOne to connect your AI agent to your helpdesk, CRM, and messaging tools to automate SLA breach prediction and escalation.
ViewSet Up Your Help Scout MCP Server in Minutes
One endpoint. Any framework. Your agent is talking to Help Scout in under 10 lines of code.
Agent Frameworks
JSON{
"mcpServers": {
"stackone": {
"command": "npx",
"args": [
"-y",
"mcp-remote@latest",
"https://api.stackone.com/mcp?x-account-id=<account_id>",
"--header",
"Authorization: Basic <YOUR_BASE64_TOKEN>"
]
}
}
}Check More Customer Support MCP Servers
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Platform Resources
MCP Code Mode: Keeping Tool Responses Out of Agent Context
Anthropic's code_execution processes data already in context. Custom MCP code mode keeps raw tool responses in a sandbox. 14K tokens vs 500.
11 min
Comparing BM25, TF-IDF, and Hybrid Search for MCP Tool Discovery
Benchmarking BM25, TF-IDF, and hybrid search for MCP tool discovery across 916 tools. The 80/20 TF-IDF/BM25 hybrid hits 21% Top-1 accuracy in under 1ms.
10 min
Indirect Prompt Injection Defense for MCP Tools: A Technical Guide
MCP tools that read emails, CRM records, and tickets are indirect prompt injection vectors. Here's how we built a two-tier defense that scans tool results in ~11ms.
12 min
MCP vs A2A: Architecture, Security, and When to Use Each
MCP vs A2A: what each protocol standardizes, how they differ, their shared security risks including indirect prompt injection, and when to use one, both, or a hybrid architecture.
12 min
MCP vs API: What 200+ Connector Builds Taught Us
MCP wraps APIs, it doesn't replace them. After building 200+ connectors that serve both, here's when each approach wins.
14 min read
Help Scout MCP Server FAQ
Does StackOne have a Help Scout MCP server?
Help Scout MCP server vs direct API integration — what's the difference?
How does Help Scout authentication work for AI agents?
origin_owner_id.Are Help Scout MCP tools vulnerable to prompt injection?
What is the context bloat of a Help Scout agent and how do I avoid it?
Can I limit which actions my Help Scout agent can access?
Can I create custom agent actions for my Help Scout MCP server?
When should I NOT use a Help Scout MCP server?
What AI frameworks and AI clients does the StackOne Help Scout MCP server support?
Put your AI agents to work
All the tools you need to build and scale AI agent integrations, with best-in-class connectivity, execution, and security.