workflowstacks
mcp-server

Composio: Build AI Agents

Get a sandboxed workbench for building AI agents with Composio, used by developers
intermediate⏱ 30 minutes💵 Free (self-hosted)
29,866 stars4,736 forksTypeScriptGuide quality 8/10Updated 8/25/2026100% free · open source
What it is

Build AI agents in a secure, all-in-one workbench.

Real use case example

"A founder wants to automate sending a personalized follow-up email to customers who abandoned their shopping carts. They use Composio to build an AI agent that checks for cart abandonments, sends the follow-up email, and also tracks conversion rates. After setting up the agent, they save time and effort by automating this tedious task and also gain valuable insights to improve their business."

Best insideClaude DesktopCursor
When to use it
  • •When you need to integrate multiple AI tools and services into a single workflow
  • •When you want to build custom AI agents with a sandboxed environment for testing and development
  • •When you require a flexible and scalable platform for managing AI-powered toolkits and workflows
Ready-to-paste prompt
Create a new AI agent with a sample toolkit by running `yarn create-agent --template=default`
Heads up: Make sure you have a compatible version of Node.js (14 or higher) and Yarn installed on your system, as Composio relies on these for building and running the workbench
Saves to your device
Use with Claude
New

Skip the builder — one click puts this in Claude, Cursor, Antigravity and more.

🛠️ Technical setup

Expect 20–40 minutes in a terminal — or let your AI agent drive it.

Try it instantly — no install
Claude Code
mkdir -p ~/.claude/skills/composio && curl -fsSL https://workflowstacks.com/api/skills/composio/claude-skill -o ~/.claude/skills/composio/SKILL.md
Open in another AI app

Opens the app with this repo with the prompt ready to go — no copy-paste needed.

Connect the whole catalog (MCP)
claude mcp add --transport http workflowstacks https://workflowstacks.com/api/mcp

Adds a WorkflowStacks connector to Claude Code: search and load any skill here by chatting.

How Composio: Build AI Agents works
Codeflow
Free to inspect

Composio: Build AI Agents is a very large TypeScript project (~154k lines across 1164 code files, plus 379 test files). It is a full software project: use it through its install path rather than reading it end to end. Last commit this month, MIT license, has a test suite.

Size
Very large codebase
~154k lines · 1164 code files · days to read — use, don't read
Setup
Developer setup
A real software project. Use it via its install path; don't expect to read it all.
Runs on
Node.js · Python
No API keys detected
TypeScript 74%Python 21%Shell 2%JavaScript 2%
Where to start reading
  1. 1
    README.md
    Start here — what it does and how to install it
  2. 2
    AGENTS.md
    The instructions the AI actually follows
  3. 3
    harness/run.mjs
    Where the program starts running
  4. 4
    package.json
    Dependencies and the commands it exposes
  5. 5
    skills/composio/SKILL.md
    Inside skills/ — an example of what the AI is told to do
What's in each folder
skills/Prompts, skills & agent definitions4 files
docs/Documentation1204 files
ts/Folder1546 files
python/Folder257 files
harness/Folder12 files
install/Folder3 files
scripts/Helper scripts1 files
test/Tests — proof it works68 files
READMEHas testsDocumentedCI checksMIT licenseUpdated this month
Quick Actions
Details
Creator
ComposioHQ
Language
TypeScript
Category
mcp-server
Published
2/23/2024

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