mcp-server · stackscan — Claude Code MCP server: what it does, how to install
Look up a domain’s technologies and the company behind it. Use the server from Claude Code or another supported MCP client.
claude mcp add --env STACKSCAN_API_TOKEN=<STACKSCAN_API_TOKEN> --env STACKSCAN_TENANT_ID=<STACKSCAN_TENANT_ID> --env STACKSCAN_SESSION_LOOKUP_CAP=<STACKSCAN_SESSION_LOOKUP_CAP> --transport stdio stackscan-mcp-server -- npx -y @stackscan/mcp-serverWhat mcp-server does
Ask which technologies a site uses, who runs it, or how widely a particular technology appears across websites. For a single domain, the server returns technologies with their categories. Batch lookups compare several domains, while company lookups can return details such as industry, city, country, and LinkedIn.
You’ll need a StackScan API token and workspace UUID. The server runs through npx -y @stackscan/mcp-server, with credentials passed when you add it to Claude Code. Paid lookups count toward a session cap of 25 by default. A batch that would exceed the remaining cap is rejected as a whole, so check your available credits before sending a large lookup.
What it helps with
- identify technologies used by a domain
- find the company behind a website
- compare technologies across several domains
- check how many sites use a technology
Example prompts for the agent
- Check which technologies
example.comuses. - Find the company behind
vercel.comand report its industry and country. - How many sites use Klaviyo, and where are they located?
How to install mcp-server
Platform CLI
claude mcp add --env STACKSCAN_API_TOKEN=<STACKSCAN_API_TOKEN> --env STACKSCAN_TENANT_ID=<STACKSCAN_TENANT_ID> --env STACKSCAN_SESSION_LOOKUP_CAP=<STACKSCAN_SESSION_LOOKUP_CAP> --transport stdio stackscan-mcp-server -- npx -y @stackscan/mcp-serverReplace <…> with your own values
Platform CLI
codex mcp add stackscan-mcp-server --env STACKSCAN_API_TOKEN=<STACKSCAN_API_TOKEN> --env STACKSCAN_TENANT_ID=<STACKSCAN_TENANT_ID> --env STACKSCAN_SESSION_LOOKUP_CAP=<STACKSCAN_SESSION_LOOKUP_CAP> -- npx -y @stackscan/mcp-serverReplace <…> with your own values
Config file
{
"mcpServers": {
"stackscan-mcp-server": {
"command": "npx",
"args": [
"-y",
"@stackscan/mcp-server"
],
"env": {
"STACKSCAN_API_TOKEN": "<STACKSCAN_API_TOKEN>",
"STACKSCAN_TENANT_ID": "<STACKSCAN_TENANT_ID>",
"STACKSCAN_SESSION_LOOKUP_CAP": "<STACKSCAN_SESSION_LOOKUP_CAP>"
}
}
}
}Replace <…> with your own values
Config file
{
"servers": {
"stackscan-mcp-server": {
"type": "stdio",
"command": "npx",
"args": [
"-y",
"@stackscan/mcp-server"
],
"env": {
"STACKSCAN_API_TOKEN": "<STACKSCAN_API_TOKEN>",
"STACKSCAN_TENANT_ID": "<STACKSCAN_TENANT_ID>",
"STACKSCAN_SESSION_LOOKUP_CAP": "<STACKSCAN_SESSION_LOOKUP_CAP>"
}
}
}
}Replace <…> with your own values
Platform CLI
gemini mcp add -e STACKSCAN_API_TOKEN=<STACKSCAN_API_TOKEN> -e STACKSCAN_TENANT_ID=<STACKSCAN_TENANT_ID> -e STACKSCAN_SESSION_LOOKUP_CAP=<STACKSCAN_SESSION_LOOKUP_CAP> stackscan-mcp-server npx -y @stackscan/mcp-serverReplace <…> with your own values
Step by step, with commands for each platform: How to add an MCP server to Claude Code, Codex, Cursor, VS Code, Gemini CLI and more
Questions about mcp-server
How do I install mcp-server in Claude Code?
Run claude mcp add mcp-server -e STACKSCAN_API_TOKEN=<STACKSCAN_API_TOKEN> -e STACKSCAN_TENANT_ID=<STACKSCAN_TENANT_ID> -- npx -y @stackscan/mcp-server. Replace the placeholders with your StackScan token and workspace UUID.
What does mcp-server do?
It looks up the technologies associated with a domain and information about the company behind the site. You can query one domain or compare several.
What do I need to run mcp-server?
You need a StackScan API token and workspace UUID. Paid lookups count toward a session limit that defaults to 25.
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