# TheirStack MCP: use TheirStack from your agent through looot

Search job postings, find companies by the tech they use and read buying intent through one MCP connection. TheirStack is one of the providers behind looot; your agent calls its endpoints through the looot MCP connection.

## What your agent can do with TheirStack

- Search job postings: covered.
- Technologies a company uses: covered.
- Search companies by tech: covered.
- Read buying intent topics: covered.

## Example prompts for TheirStack

- Job postings: Use looot to search TheirStack for job posts that mention Snowflake in Germany from the last 30 days.
- Tech stack: Use looot to list the technologies this company uses with TheirStack.
- Company search: Use looot to find companies that use HubSpot and have 50 to 200 employees with TheirStack.

## Is there a TheirStack MCP server?

TheirStack publishes its own MCP server. looot is not that server. looot is one MCP connection that reaches TheirStack and every other provider in the catalog, billed per call. Use TheirStack's server when TheirStack is the only provider you need.

## How do I use TheirStack with Claude Code?

Add the looot MCP connection to Claude Code once, using the setup at https://looot.ai/skill.md. Then ask Claude Code to use looot for the job. TheirStack is one of the providers behind looot; your agent calls its endpoints through the looot MCP connection.

## How do I use TheirStack with Cursor?

Add the looot MCP connection in Cursor's MCP settings, then ask the agent to use looot. TheirStack is one of the providers behind looot; your agent calls its endpoints through the looot MCP connection.

## Does TheirStack work with ChatGPT?

It works in any client that can add an MCP connection. Where your ChatGPT plan lets you add one, add looot and ask it to use looot. TheirStack is one of the providers behind looot; your agent calls its endpoints through the looot MCP connection.

## What can I do with TheirStack through looot?

The jobs on this page: search job postings, technologies a company uses, search companies by tech, read buying intent topics. The page marks any job whose endpoints are not in the live catalog.

## What does TheirStack cost through looot?

You pay per call. The price of each endpoint is shown before you run it, so your agent can check it first and pick the cheapest one that fits.

## Do I need a TheirStack account to use it through looot?

You connect to looot, not to TheirStack. looot makes the provider call for you and bills each call at the price shown before the run.

## How does my agent find the right TheirStack endpoint?

It searches the looot catalog for the task, reads the endpoint's parameters and price, and then calls it. You do not have to read TheirStack's docs first.

## What can I use with TheirStack in looot?

Providers that often go with TheirStack are Sumble, BuiltWith, Coresignal, The Companies API. All of them sit behind the same looot MCP connection.

## What are the TheirStack alternatives?

For tech stacks, Sumble, BuiltWith and The Companies API run behind the same looot connection. For job postings, Sumble and Coresignal. See /mcp/sumble, /mcp/builtwith and /mcp/coresignal, or ask your agent to compare prices in the looot catalog before it runs.

## What can the TheirStack API not do through looot?

The catalog covers TheirStack's job, tech stack, company search and buying intent endpoints. They do not return email addresses or phone numbers. Most calls are priced per result, so cap the number of results your agent asks for.

## Used together with

- sumble
- builtwith
- coresignal
- thecompaniesapi

## Last reviewed

2026-10-02. Live prices are on the web page, read from the catalog.

## Agent skill for this page

https://looot.ai/mcp/theirstack/skill.md sets an agent up for exactly the jobs on this page, with the live price of each, and offers the page's starter task once the user has picked a job and seen the price. The line to give an agent is under "Give this to your agent" below.

## For agents

### Give this to your agent

```text
set up looot for TheirStack jobs - https://looot.ai/mcp/theirstack/skill.md
```