gmansystems/agent-stack-directory

An open dataset of infrastructure tools for AI agents (cloud browsers, sandboxes, memory, search APIs, email,
integrations, payments, voice, observability, frameworks and auth) plus a small MCP server so AI coding tools can
query it while you build.
Remote endpoint: https://agentstackdirectory.com/mcp (Streamable HTTP, stateless, read-only, no key)
Live data: https://agentstackdirectory.com/data.json
Snapshot in this repo: data/ (JSON and CSV)
Website: https://agentstackdirectory.com/mcp/
## Tools
| Tool | Input | Returns |
| searchtools | query?, category?, opensource?, limit? (1 to 50, default 10) | Matching tools ranked by keyword match |
| gettool | tool (slug or name) | Summary, official site, open-source flag, last link check, alternatives in the same category |
| compare | tools (2 to 4 slugs or names) | Side-by-side table, notable differences, head-to-head page URL when one exists |
| listcategories | none | Every category with key, description and tool counts |
Every tool is read-only. Results come back as readable text plus structuredContent JSON.
Example prompts:
"Which sandboxes for running agent code are open source?"
"Compare E2B and Daytona."
"What are the alternatives to Browserbase?"
Listed in the official MCP Registry as com.agentstackdirectory/agent-stack-directory. Server card: https://agentstackdirectory.com/.well-known/mcp/server-card.json
## Install (remote, nothing to run locally)
### Claude Code
sh
claude mcp add --transport http agent-stack-directory https://agentstackdirectory.com/mcp
### Cursor
.cursor/mcp.json in your project, or ~/.cursor/mcp.json for all projects:
json
"mcpServers": {
"agent-stack-directory": {
"url": "https://agentstackdirectory.com/mcp"
### VS Code
.vscode/mcp.json in your workspace:
json
"servers": {
"agent-stack-directory": {
"type": "http",
"url": "https://agentstackdirectory.com/mcp"
Or from a terminal:
sh
code --add-mcp '{"name":"agent-stack-directory","type":"http","url":"https://agentstackdirectory.com/mcp"}'
## Install (local, stdio)
Needs Node 18 or newer. npx builds the server from this repository on first run.
### Claude Code
sh
claude mcp add agent-stack-directory -- npx -y github:gmansystems/agent-stack-directory
### Cursor
json
"mcpServers": {
"agent-stack-directory": {
"command": "npx",
"args": ["-y", "github:gmansystems/agent-stack-directory"]
### VS Code
json
"servers": {
"agent-stack-directory": {
"type": "stdio",
"command": "npx",
"args": ["-y", "github:gmansystems/agent-stack-directory"]
### From a clone
sh
git clone https://github.com/gmansystems/agent-stack-directory
cd agent-stack-directory
npm install
node dist/stdio.js
Environment variables (optional):
| Variable | Default | Purpose |
| AGENTSTACKDATAURL | https://agentstackdirectory.com/data.json | Where to fetch the dataset |
| AGENTSTACKDATAFILE | unset | Read a local JSON file instead, for offline use, e.g. data/agent-stack-directory.json |
The stdio server caches the dataset in memory for 10 minutes and keeps serving the last good copy if a refresh fails.