Greenhouse Job Board API vs TheirStack for AI agents
Greenhouse Job Board API is a public JSON view of one company's offices, departments and published jobs on Greenhouse, meant for building that company's careers site. TheirStack is a job postings data API (with company and technographic data) aimed at sales and market intelligence as well as job search.
The short answer
- Greenhouse Job Board API: Reading a known company's live openings straight from its own applicant tracking system.
- TheirStack: Bulk, filterable job-posting data for market research and sales signals, with history back to 2021.
Side by side
| Greenhouse Job Board API | TheirStack | |
|---|---|---|
| Searches | One employer's Greenhouse job board per call (by board_token); employer-direct, no cross-company search. | Aggregated postings from career pages, job boards and ATS platforms across about 363k websites in 195 countries, since 2021. |
| Returns | JSON jobs with id, title, location.name, updated_at, absolute_url and, with content=true, the full description, departments and offices. | JSON jobs with title, description, url, final_url, source_url, company and company_object, location fields, min/max salary (plus annual USD) and salary_string. |
| Before the first call | Nothing for GET: no authentication; you need the company's board_token. Submitting applications needs the company's API key. | A TheirStack account and API key (Bearer token); each search must include at least one date or company filter. |
| Free | No key needed, and its pages state no price | 200 API credits and 50 company credits every month, free (1 credit per job returned); free tier rate limit 4/second, 10/minute, 50/hour, 400/day. |
| Paid | Not stated on its pages | From $49 per month for 1,500 API credits (1 credit per job). |
| Acting on a result | absolute_url is the employer's own job post (the docs don't say where it is hosted). | url, plus final_url with the original career-page URL when available (filterable with final_url_exists). |
| Coverage | Wherever the employer hires. | 195 countries. |
| MCP server | No official server listed | Official TheirStack MCP server (search_jobs tool), OAuth or API key; uses the same API credits: https://theirstack.com/en/docs/mcp |
Where Openpath fits
If the agent needs a job to apply for in Austin, Texas, or a remote one, Openpath returns the listings themselves, free and with no key. See Openpath vs Greenhouse Job Board API and Openpath vs TheirStack.
Questions people ask
What do I need before I can use Greenhouse Job Board API?
Nothing for GET: no authentication; you need the company's board_token. Submitting applications needs the company's API key.
Is Greenhouse Job Board API free?
No key needed, and its pages state no price.
What do I need before I can use TheirStack?
A TheirStack account and API key (Bearer token); each search must include at least one date or company filter.
Is TheirStack free?
200 API credits and 50 company credits every month, free (1 credit per job returned); free tier rate limit 4/second, 10/minute, 50/hour, 400/day.
Sources
Every line about another company comes from its own pages. Prices and terms change, so check the source before you rely on one.
Greenhouse Job Board API, read on October 15, 2026:
- docs.greenhouse.io/job-board.html: “Job Board data is publicly available, so authentication is not required for any GET endpoints.”
- docs.greenhouse.io/job-board.html: “a simple JSON representation of your company's offices, departments, and published jobs”
TheirStack, read on October 15, 2026:
- theirstack.com/en/job-posting-api: “253M of jobs across 195 countries since 2021”
- theirstack.com/en/job-posting-api: “career pages, job boards, and ATS platforms”
- theirstack.com/en/docs/pricing/plans: “Start exploring with 50 company credits and 200 API credits every month - completely free, forever.”
- theirstack.com/en/docs/api-reference/rate-limit: “4/second, 10/minute, 50/hour, 400/day”
- theirstack.com/en/pricing: “1,500 API credits — $49 per month”
- theirstack.com/en/docs/api-reference/jobs/search_jobs_v1: “1 API credit for each job returned in the response”
- theirstack.com/en/job-posting-mcp: “Your AI assistant calls the search_jobs tool to find jobs by title, location, salary”