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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.

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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
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
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
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
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

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

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

Sources

Checked on 7 November 2026.

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.

More in recruitment

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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 Open in ChatGPT

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.

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