TheirStack
Job-posting and tech-stack data from career sites, ATSs and job boards, for finding the companies hiring for the roles you place.
From $49/mo MCP server API
Bottom line
For agency recruiters who win business off hiring signals: TheirStack finds every company posting a given role, and what tech it runs, from career sites, ATSs and job boards. Free with 50 company credits a month; API and MCP from $49/mo.
Stands out for: The depth of its job-posting archive: the vendor lists 225M postings back to 2021 across 195 countries and 352k sources, adds about 305k a day, and keeps closed jobs with the date each role went offline. Saved searches send daily or weekly email alerts or push to a webhook, so a desk hears the day a target company opens a role it places.
Watch out for: It gives you the company and the posting, not the person: there are no emails or phone numbers for hiring managers, so you still need an enrichment tool to reach anyone. App credits and API credits are separate pools, and each app export is capped at 200 jobs per company.
Overview
TheirStack is a job-posting and technographic data provider. It gathers postings from company career sites, ATSs and job boards, deduplicates them, and links each one to the hiring company's domain, industry, size and technology stack.
The app covers job search, company search by technology and hiring activity, company lookup by domain, list enrichment and exports to CSV or Excel. Results run to 500 per page with unlimited pages and team members, and saved searches send new matches by email daily or weekly.
Technographics are inferred largely from what companies mention in their job descriptions, which catches back-office tools that never show up on a public website, alongside buying-intent data.
Developers and AI users reach the same data through a REST API, webhooks for new jobs, closed jobs and new companies, and an MCP server. Large buyers can take the whole jobs, technographics or buying-intents dataset delivered to S3, Google Cloud Storage, Azure Blob, Snowflake or an HTTPS endpoint.
Who it's for
Best for
- Agency recruiters building BD lists from companies hiring for the roles they place
- Desks that want a daily alert when target accounts post new jobs
- Teams feeding hiring signals into Claude, Clay or their own tools by API, webhook or MCP
Not ideal for
- Recruiters who need candidate profiles or contact details
- Teams that want contacts and hiring signals in a single tool
Key features
Job posting search. Every posting from career sites, ATSs and job boards, deduplicated and filterable by title, location, salary and seniority, with closed jobs kept and dated so you can see when a role went offline.
Technographics. Find companies by the technologies they use, inferred from their job postings, or look up any company's stack by domain.
Hiring alerts. Save a search and get new matching jobs and companies by email daily or weekly, or push them to a webhook as they appear.
MCP server
First-party MCP server included on every API plan, so Claude, Cursor and other MCP clients can run job searches, company searches and tech-stack lookups on your API credits. Tool list and setup are in TheirStack's docs.
All tools with MCP Check your stack in the MCP readiness checker
Pricing
| Plan | Price | What you get |
|---|---|---|
| Free | $0 | 50 company and 200 API credits a month |
| App credits | $109 one-time | 1,000 company credits, packs up to 200,000 |
| API | $49/mo | 1,500 API credits, webhooks and MCP |
| API | $169/mo | 10,000 API credits |
| Datasets | Quote | Full history delivered to your storage |
Free gives 50 company credits and 200 API credits a month. In the app, company credits are bought in one-time packs from $109 for 1,000 up to $999 for 200,000, and a company you reveal stays open for 90 days. API, webhook and MCP access is a monthly subscription from $49/mo for 1,500 API credits up to $1,500/mo for 1,000,000; one job costs 1 credit and a company, tech-stack or buying-intent lookup costs 3. Unused paid credits roll over for 12 months, and full historical datasets are quoted. Confirm current terms on the vendor site.
Checked 28 Sep 2026. Vendors change prices without notice.
Is TheirStack expensive?
TheirStack starts at $49/mo. We list 203 lead generation tools in total. 50 have a free tier, and those with a public price typically start around $49 a month.
- 31 quote-based
- 50 free tier
- 159 public price
Worked out automatically from every lead generation listing, so it updates as the directory changes.
Pros and cons
Pros
- Free plan every month with both company and API credits
- Closed jobs are kept and dated, not just live ones
- Email alerts and webhooks for new postings
- API, webhooks and MCP server on every API plan
Cons
- No contact data for hiring managers
- Separate credit pools for the app and the API
- App exports capped at 200 jobs per company
Integrations
MCP clients Webhooks Amazon S3 Google Cloud Storage Azure Blob Storage Snowflake
How TheirStack compares
See all TheirStack alternatives, with what each one does differently and a head to head for every pairing.
| Tool | Free tier | From | MCP | API | Compare |
|---|---|---|---|---|---|
| TheirStack (this tool) | – | $49/mo | ✓ | ✓ | |
 PredictLeads Adds news, funding and product signals to job openings on 120M+ companies, pay as you go from a $40 monthly minimum, if you want more than hiring data. | – | $40/mo | ✓ | ✓ | Compare |
| | – | $49/mo | ✓ | ✓ | Compare |
| | ✓ | $49/mo | ✓ | ✓ | Compare |
PredictLeads$40/mo MCP API
Adds news, funding and product signals to job openings on 120M+ companies, pay as you go from a $40 monthly minimum, if you want more than hiring data.
$49/mo MCP API
Employee and company records as well as job data, from $49/mo, better if you also want people data for sourcing rather than postings alone.
$49/mo Free tier MCP API
Hiring-manager contacts and emails with job-posting filters, free to start, if you need to reach the person rather than just find the company.
Your next step
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