--- title: "Greenhouse API: connect it to your AI chat ยท Hypamoon" description: "The Greenhouse API is open, signs in with basic auth and sends webhooks. What your AI chat can build with it on Hypamoon, with sources." url: https://hypamoon.com/connect-to/greenhouse --- 1. [Connect to](https://hypamoon.com/connect-to) 2. Greenhouse Recruitment # Connect Greenhouse to Hypamoon Yes. Greenhouse has a public, versioned API and you create the key yourself, so your chat can write the adapter. Open ## The check Three questions about the API of Greenhouse, answered from its own docs. **Public API docs**\ **Yes.** Public Harvest API reference with recruiting and onboarding webhooks. [Read the docs](https://docs.greenhouse.io/harvest.html) **A key you create yourself**\ **Yes.** A user with the permission to manage all API credentials creates a key under Configure, Dev Center, API Credential Management, and picks the endpoints it may use. [docs.greenhouse.io](https://docs.greenhouse.io/harvest.html) **Versions or a changelog**\ **Yes.** Versioned API with a dated changelog; Harvest v1 and v2 were set for removal on August 31, 2026 in favour of v3. [docs.greenhouse.io](https://docs.greenhouse.io/harvest.html) **How it signs in**\ HTTP Basic auth over HTTPS with the API key as username and an empty password. **Webhooks**\ **Yes.** It can tell your app when something changes. [docs.greenhouse.io](https://docs.greenhouse.io/harvest.html) **Hosting**\ Cloud ## Your own hiring overview on Greenhouse, for recruiters and hiring managers. - Candidates, applications, jobs and interviews, straight from Greenhouse. - AI that reads new applications and tells the hiring team how well each one fits. - A screen for hiring managers and a weekly email with what is stuck. ### Ask your chat Answers straight from your Greenhouse data, in Claude or another chat with the full Hypamoon connection. - Which applications for the sales role have been in the same stage for more than a week? - How many interviews are scheduled next week, per department? ### When something happens Greenhouse sends a webhook to your app, and the app asks AI what happens next. 1. When A candidate applies for a job. AI decides AI reads the CV and the answers, and compares them with the job. Then A note with the fit is added to the application in Greenhouse. Ask for an approval step, and you check it first ### A screen for your team or customers An app on your own address, with sign-in, on top of the same Greenhouse data. - For your team Hiring managers sign in and see only their own jobs, with the shortlist and the interview feedback. Greenhouse stays the core: your chat builds the rest on its API, as an adapter plus an app and agents in your Hypamoon project. Reading starts after you click Allow in the portal. Every change an agent or a chat makes in Greenhouse waits for your approval, one call at a time. [How adapters work](https://hypamoon.com/docs/adapters) ### Good to know - Your adapter uses a fixed key: you paste it once in the Hypamoon portal, never in the chat, and it only goes to the API host you allow. - Rate limits are given per 10 seconds in the X-RateLimit-Limit header. Custom fields on applications are only on Enterprise accounts. ## Try it in your chat Fill in what to read and write, and send it. Say this in your chat > Build the Hypamoon recipe build-an-adapter for Greenhouse. API docs: https://docs.greenhouse.io/harvest.html. Read: \[what\]. Write: \[what, or nothing\]. [Open in Claude](https://claude.ai/new?q=Build%20the%20Hypamoon%20recipe%20build-an-adapter%20for%20Greenhouse.%20API%20docs%3A%20https%3A%2F%2Fdocs.greenhouse.io%2Fharvest.html.%20Read%3A%20%5Bwhat%5D.%20Write%3A%20%5Bwhat%2C%20or%20nothing%5D.) In Claude, or another chat with the full Hypamoon connection; adapters are not in ChatGPT yet. You paste the key in the portal, never in the chat. [The full recipe](https://hypamoon.com/r/build-an-adapter) ## Sources Checked on 7 November 2026. - [docs.greenhouse.io/harvest.html](https://docs.greenhouse.io/harvest.html) Greenhouse is a name of its owner, used here only to describe the software. This page is not an official integration and Hypamoon has no partnership with Greenhouse. Found something that changed? Tell us at [support](https://hypamoon.com/support#contact). ## More in recruitment - [**Bullhorn** Possible](https://hypamoon.com/connect-to/bullhorn) - [**Carerix** Open](https://hypamoon.com/connect-to/carerix) - [**Homerun** Open](https://hypamoon.com/connect-to/homerun) - [**OTYS** Possible](https://hypamoon.com/connect-to/otys) - [**Recruitee** Possible](https://hypamoon.com/connect-to/recruitee) - [**RecruitNow** Possible](https://hypamoon.com/connect-to/recruitnow) - [**Teamtailor** Open](https://hypamoon.com/connect-to/teamtailor) - [**Lever** Open](https://hypamoon.com/connect-to/lever) - [**Workable** Open](https://hypamoon.com/connect-to/workable) - [**SmartRecruiters** Open](https://hypamoon.com/connect-to/smartrecruiters) - [**Ashby** Open](https://hypamoon.com/connect-to/ashby) - [**JOIN** Open](https://hypamoon.com/connect-to/join) - [**Breezy HR** Open](https://hypamoon.com/connect-to/breezy-hr) - [**Pinpoint** Open](https://hypamoon.com/connect-to/pinpoint) - [**Manatal** Open](https://hypamoon.com/connect-to/manatal) - [**Welcome to the Jungle** Possible](https://hypamoon.com/connect-to/welcome-to-the-jungle) - [**Flatchr** Possible](https://hypamoon.com/connect-to/flatchr) - [**d.vinci** Open](https://hypamoon.com/connect-to/dvinci) - [**JobAdder** Possible](https://hypamoon.com/connect-to/jobadder) - [**Zoho Recruit** Open](https://hypamoon.com/connect-to/zoho-recruit) - [**Easyflex** Possible](https://hypamoon.com/connect-to/easyflex) - [**iCIMS** Possible](https://hypamoon.com/connect-to/icims) [All 1094 tools](https://hypamoon.com/connect-to) ## Tool not listed? Ask the chat to check its API. The same three checks work for any software. Your chat reads the vendor's own docs and tells you what it found. Say this in your chat > Check if \[software\] has an open API that a Hypamoon adapter can use: public API docs, a key or token I can create myself without asking the vendor, and versions or a changelog. Link the pages you used. [Open in Claude](https://claude.ai/new?q=Check%20if%20%5Bsoftware%5D%20has%20an%20open%20API%20that%20a%20Hypamoon%20adapter%20can%20use%3A%20public%20API%20docs%2C%20a%20key%20or%20token%20I%20can%20create%20myself%20without%20asking%20the%20vendor%2C%20and%20versions%20or%20a%20changelog.%20Link%20the%20pages%20you%20used.) [Open in ChatGPT](https://chatgpt.com/?q=Check%20if%20%5Bsoftware%5D%20has%20an%20open%20API%20that%20a%20Hypamoon%20adapter%20can%20use%3A%20public%20API%20docs%2C%20a%20key%20or%20token%20I%20can%20create%20myself%20without%20asking%20the%20vendor%2C%20and%20versions%20or%20a%20changelog.%20Link%20the%20pages%20you%20used.) Fill in the name of your software. Checking needs no connection to Hypamoon. ## Ready to connect Greenhouse? Connect your chat once, then ask it to build the adapter. [Start free](https://app.hypamoon.com/?mode=signup&utm_source=connect-to&utm_campaign=greenhouse) Works in Claude, ChatGPT and Copilot. [Add to Claude](https://hypamoon.com/connect?via=connect-to~greenhouse#claude) [Add to ChatGPT](https://hypamoon.com/connect?via=connect-to~greenhouse#chatgpt) [Add to Copilot](https://hypamoon.com/docs/microsoft-copilot)