Basecamp MCP Server
for AI Agents

Q: What AI frameworks and AI clients does the StackOne Basecamp MCP server support?

The StackOne Basecamp MCP server supports both. MCP clients (paste-and-go apps): Claude Desktop, Claude Code, Cursor, VS Code, Goose. Agent frameworks (code SDKs you build with): OpenAI Agents SDK, Anthropic, Vercel AI, Google ADK, CrewAI, Pydantic AI, LangChain, LangGraph, Azure AI Foundry.

Production-ready Basecamp MCP server with 118 extensible actions — plus built-in authentication, security, and optimized execution.

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Basecamp MCP Server

Built by

StackOne

Coverage

118 Agent Actions

Create, read, update, and delete across Basecamp — and extend your agent's capabilities with custom actions.

MCP Actions → Create Actions →

Authentication

Agent Tool Authentication

Per-user OAuth in one call. Your Basecamp MCP server gets session-scoped tokens with zero credentials stored on your infra.

Agent Auth →

Security

Agent Protection

Every Basecamp 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 Basecamp call.

Tools Discovery →

What is the Basecamp MCP Server?

A Basecamp MCP server lets AI agents read and write Basecamp data through the Model Context Protocol — Anthropic's open standard for connecting LLMs to external tools. StackOne's Basecamp MCP server ships with 118 pre-built actions, fully extensible via the Connector Builder — plus managed authentication, prompt injection defense, and optimized agent context. Connect it from MCP clients like Claude Desktop, Cursor, and VS Code, or from agent frameworks like OpenAI Agents SDK, LangChain, and Vercel AI SDK.

All Basecamp MCP Tools and Actions

Every action from Basecamp's API, ready for your agent. Create, read, update, and delete — scoped to exactly what you need.

Account Logos

Update Account Logo
Update account logo
Remove Account Logo
Remove account logo

A Campfire Lines

Create A Campfire Line
Send chat message
Get A Campfire Line
Get specific message
Delete A Campfire Line
Delete chat message

A Cards

Create A Card
Create new card
Get A Card
Get specific card
Update A Card
Update card
Move A Card
Move card to different column

A Columns

Create A Column
Create new column
Get A Column
Get specific column
Update A Column
Update column
Move A Column
Move column position

On Hold Sections

Add On Hold Section
Add on-hold section to column
Remove On Hold Section
Remove on-hold section

A Card Steps

Create A Card Step
Create new step
Get A Card Step
Get specific step
Update A Card Step
Update step

A Comments

Create A Comment
Add comment to recording
Get A Comment
Get specific comment
Update A Comment
Update comment

A Documents

Create A Document
Create new document
Get A Document
Get specific document
Update A Document
Update document

A Messages

Create A Message
Create new message
Get A Message
Get specific message
Update A Message
Update existing message

A Message Types

Create A Message Type
Create new category
Get A Message Type
Get specific category
Update A Message Type
Update category

My Personal Infos

Get My Personal Info
Get my personal info
Update My Personal Info
Update my personal info

A Projects

Create A Project
Create new project
Get A Project
Get project details including dock
Update A Project
Update project details

Recordings

Get Recordings
List recordings in project
Search Recordings
Search across project

A Schedule Entrys

Create A Schedule Entry
Create new entry
Get A Schedule Entry
Get specific entry
Update A Schedule Entry
Update schedule entry

Subscriptions

Get Subscription
Get subscription status
Update Subscription
Update subscription status

A Templates

Create A Template
Create new template
Get A Template
Get template details
Update A Template
Update template

A Project Constructions

Create A Project Construction
Create project from template
Get A Project Construction
Get construction status

A To-do List Groups

Create A To-do List Group
Create new group
Get A To-do List Group
Get specific group

A To-do Lists

Create A To-do List
Create new to-do list
Get A To-do List
Get specific to-do list
Update A To-do List
Update to-do list

A To-dos

Create A To-do
Create new to-do
Get A To-do
Get specific to-do
Update A To-do
Update to-do

A Tools

Create A Tool
Create tool by cloning
Get A Tool
Get tool details
Update A Tool
Update tool settings

An Uploads

Create An Upload
Create file upload
Get An Upload
Get specific upload
Update An Upload
Update upload metadata

A Vaults

Create A Vault
Create new vault
Get A Vault
Get vault details
Update A Vault
Update vault settings

Other (54)

Create An Attachment
Upload file and get SGID
Get Account
Get account information
Get Campfires
List campfires in project
Get A Campfire
Get campfire chat details
Get Campfire Lines
List chat messages
Get Cards
List cards in column
Get Card Steps
List steps in card
Get A Card Table
Get card table (Kanban) details
Get Comments
List comments on recording
Get Documents
List documents in vault
Get Events
List recent events
Get Message Board
Get message board details
Get Messages
List messages in board
Get Message Types
List message categories
Get All People
List all people in account
Get My Profile
Get authenticated user profile
Get People On A Project
List people in project
Get Pingable People
List mentionable people
Get Person
Get person details
Get All Projects
List all active projects
Get Schedule Entries
List schedule entries
Get Schedule
Get schedule details
Get Search Metadata
Get search metadata
Get Templates
List all project templates
Get To-do List Groups
List to-do list groups
Get To-do Lists
List all to-do lists
Get To-dos
List to-dos in list
Get To-do Set
Get to-do set container
Get Uploads
List file uploads
Get Upload Versions
List upload versions
Get Vaults
List vaults in project
Update Account Name
Update account name
Update Who Can Access A Project
Update project access
Update A Schedule
Update schedule settings
Watch A Column
Watch a column
Unwatch A Column
Unwatch a column
Change Column Color
Change column color
Pin A Message
Pin message to top
Destroy A Message Type
Delete category
Trash A Project
Delete project
Trash A Recording
Delete a recording
Archive A Recording
Archive a recording
Unarchive A Recording
Unarchive a recording
Subscribe Current User
Subscribe to recording
Unsubscribe Current User
Unsubscribe from recording
Trash A Template
Delete template
Reposition A To-do List Group
Change group position
Complete A To-do
Mark to-do complete
Uncomplete A To-do
Mark to-do incomplete
Reposition A To-do
Change to-do position
Enable A Tool
Enable tool in project
Disable A Tool
Disable tool
Reposition A Tool
Change tool position
Trash A Tool
Delete tool permanently

Set Up Your Basecamp MCP Server in Minutes

One endpoint. Any framework. Your agent is talking to Basecamp in under 10 lines of code.

MCP Clients

Agent Frameworks

Claude Desktop-

JSON

Docs

{
  "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>"
      ]
    }
  }
}

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133+ actions

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133+ actions

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126+ actions

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All Project Management MCP Servers →

Basecamp MCP Server 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

Basecamp MCP Server FAQ

Basecamp MCP server vs direct API integration — what's the difference?

A Basecamp MCP server and direct API integration serve different use cases. Direct API integration is for software-to-software — backend code calling Basecamp. A Basecamp MCP server is for AI agents — MCP clients like Claude and Cursor, plus framework agents built with OpenAI, LangChain, or Vercel AI — discovering and calling Basecamp at runtime. StackOne provides both.

How does Basecamp authentication work for AI agents?

Basecamp authentication for AI agents works through a StackOne Connect Session. Create one via the dashboard or the SDK — you get an auth link and ready-to-paste config for Claude Desktop, Cursor, and other MCP clients. Your user authenticates their own Basecamp account; StackOne handles token exchange, storage, and refresh. Credentials never reach the LLM, and each user is isolated via origin_owner_id.

Are Basecamp MCP tools vulnerable to prompt injection?

Yes — Basecamp MCP tools can be vulnerable to indirect prompt injection. Any tool that reads user-written content — documents, messages, tickets, records, or free-text fields — is a potential vector. StackOne Defender scans every tool response before it enters the agent's context — regex patterns in ~1ms, then a MiniLM classifier in ~4ms. 88.7% accuracy, CPU-only.

What is the context bloat of a Basecamp agent and how do I avoid it?

Context bloat happens when Basecamp tool schemas and API responses eat your Basecamp agent's memory, preventing it from reasoning effectively. A single Basecamp query can return a massive JSON response, and connecting multiple tools compounds the problem. Tools Discovery and Code Mode reduce context bloat — loading only relevant tools per query and keeping raw responses out of the agent's context.

Can I limit which actions my Basecamp agent can access?

Yes — you can limit which actions your Basecamp agent can access directly from the StackOne dashboard. Toggle actions on or off, or restrict them to specific accounts, with no code changes to your agent. Session tokens can be scoped to exact actions so if one leaks, exposure stays contained.

Can I create custom agent actions for my Basecamp MCP server?

Yes — you can create custom agent actions for your Basecamp MCP server using Connector Builder. It's an integration agent your coding assistant (Claude Code, Cursor, or Copilot) can invoke to research Basecamp's API, generate production-ready connector YAML, test against the live API, and validate before you ship.

When should I NOT use a Basecamp MCP server?

Skip a Basecamp MCP server if your integration is purely software-to-software — direct Basecamp API integration is simpler when no AI agent is involved. For deterministic, compliance-critical operations (financial transactions, regulatory reporting), direct API gives you predictable behavior without agent-driven decision-making. MCP shines when AI agents need to dynamically discover and call Basecamp actions at runtime.

What AI frameworks and AI clients does the StackOne Basecamp MCP server support?

The StackOne Basecamp MCP server supports both. MCP clients (paste-and-go apps): Claude Desktop, Claude Code, Cursor, VS Code, Goose. Agent frameworks (code SDKs you build with): OpenAI Agents SDK, Anthropic, Vercel AI, Google ADK, CrewAI, Pydantic AI, LangChain, LangGraph, Azure AI Foundry.

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.

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Basecamp MCP Serverfor AI Agents