Need help with your APIs? I offer API discovery, governance & evangelism services. Explore services →
API Evangelist API Evangelist
Discovery
Learnings
Guidance
Toolbox
Alignment
API Evangelist LLC
Greenhouse website screenshot

Greenhouse

Greenhouse Software is an enterprise applicant tracking system (ATS) and end-to-end hiring platform spanning sourcing, structured interviewing, offer management, hiring decisions, and new-hire onboarding. The company markets itself across early-stage, scaling, and enterprise tiers (Core, Plus, Pro) and lists customers including DoorDash, Betterment, MLB, Coupang, HelloFresh, Trivago, and the NFL. Greenhouse exposes a broad developer surface — Harvest (REST), Job Board, Audit Log (Pro), Candidate Ingestion (Partner), Onboarding (GraphQL), Assessment (partner-hosted), and Recruiting / Onboarding Webhooks — that powers hundreds of pre-built integrations across sourcing, assessment, background-check, video-interviewing, HRIS, payroll, SSO, and e-signature vendors. The platform recently acquired Ezra AI Labs to integrate conversational AI into the hiring workflow and continues to invest in fraud detection and identity verification through its Real Talent feature set.

agent ready

Solid contracts, transparent operations, and an easy start — typically complete on four or five facets with one clear soft spot.

Kin Score

API Evangelist profiles Greenhouse the way a machine reads it — 68 machine-readable artifacts across 27 APIs, pulled from the provider's own public surface and indexed so a developer, an analyst, or an AI agent can evaluate it against every other provider on the network.

Every provider in the network is reduced to the same set of machine-readable artifacts — OpenAPI contracts, event specifications, GraphQL schemas, runnable collections, pricing and rate-limit signals, security posture, OAuth scopes, and the agent surfaces (MCP servers and skills) that let software drive the API on its own. We profile them because the interface is the part of a company you can actually inspect: it is a truer signal of what a provider does than any marketing page. From those artifacts we compute the Kin Score — Greenhouse scores 65.3/100 (strong), with a separate agent-readiness read of 48/100 (agent ready). The full breakdown is below, followed by every artifact we hold — each card links through to its machine-readable definition on apis.io.

Kin Score

This is the API Evangelist rating — a single, repeatable read computed from the artifacts on this page. Green fill is points earned; the red track is points possible, so every bar shows earned-versus-possible at a glance.

Kin Score Kin Score How this is scored →
scored 2026-07-27 · rubric v0.5
Composite quality — 65.3/100 · strong
Contract Quality 17.9 / 25
Developer Ergonomics 10.0 / 20
Commercial Clarity 13.7 / 20
Operational Transparency 6.8 / 13
Governance 8.8 / 12
Discoverability 8.0 / 10
Agent readiness — 48/100 · agent ready
Machine-Readable Contract 18 / 18
Agentic Access Contract 15 / 15
MCP Server 0 / 12
Machine-Readable Auth 10 / 10
Idempotency 0 / 9
Stable Error Semantics 0 / 8
Request/Response Examples 0 / 7
Rate-Limit Signaling 7 / 7
Typed Event Surface 0 / 6
Agent Skills 0 / 5
Well-Known Catalog 0 / 4
Consent & Bot Identity 0 / 3

How we profile Greenhouse

Each block below is one kind of artifact we hold for Greenhouse. For each we say what it is and why it earns a place in the profile, then list every one we've indexed — capped at two rows, scroll within the panel for the rest.

APIs 27

Each API is captured as its own OpenAPI definition — every operation, parameter, and response. This is the single most useful machine-readable description of what an API does, and it's what lets us score, lint, mock, and generate against it without asking the provider for anything.

Individual APIs this provider publishes, each with its own machine-readable definition.

Greenhouse Recruiting Webhooks

Event-driven webhooks from Greenhouse Recruiting. Greenhouse POSTs JSON to your HTTPS endpoint on each event; payloads carry a Greenhouse-Event-ID header for idempotency and HMA...

Greenhouse Onboarding Webhooks

Event-driven webhooks from Greenhouse Onboarding (currently in beta and gated by customer approval). Each event posts event_type, id, and payload to the customer's HTTPS endpoin...

Greenhouse ActivityFeed API

Per-candidate timeline of activity events.

Greenhouse Applications API

Candidate applications to specific jobs, including stage advancement, transfers, hires, rejections, and attachments.

Greenhouse Approvals API

Approval flows for jobs and offers.

Greenhouse Auth API

JWT access token issuance.

Greenhouse Candidates API

Create or retrieve candidates / prospects in the customer's Greenhouse account.

Greenhouse CustomFields API

Org-defined custom fields and their options.

Greenhouse Departments API

Organizational departments.

Greenhouse Events API

Audit log events.

Greenhouse GraphQL API

Single GraphQL endpoint for all Onboarding operations.

Greenhouse JobOpenings API

Individual openings under a Job.

Greenhouse JobPosts API

Public-facing job postings and their statuses.

Greenhouse Jobs API

List jobs visible to the integrated user.

Greenhouse JobStages API

The interview/pipeline stages a job uses.

Greenhouse Offers API

Offers extended to candidates.

Greenhouse Offices API

Office locations.

Greenhouse ProspectPools API

Read configured prospect pools and their stages.

Greenhouse RejectionReasons API

Configured rejection reasons.

Greenhouse ScheduledInterviews API

Scheduled interview events on the calendar.

Greenhouse Scorecards API

Interview scorecards captured by interviewers.

Greenhouse Sources API

Candidate-source taxonomy (where the candidate came from).

Greenhouse Tags API

Candidate tags.

Greenhouse TestDelivery API

Sending tests to candidates and reporting status.

Greenhouse Tests API

Available tests offered by the partner.

Greenhouse TrackingLinks API

Generate branded tracking links for sourcing campaigns.

Greenhouse Users API

Inspect the current authenticated user.

Scroll within the panel for all 27 ·

Open Collections 6

Open, tool-agnostic collections carry the same runnable value as Postman without locking you to one client — the portable, forkable form of the same exercise.

Open, tool-agnostic API collections (OpenAPI-derived and Bruno).

GraphQL 1

Where a provider ships GraphQL, the schema is the contract. We profile it alongside the REST surface so the whole interface is legible in one place.

GraphQL schemas published by this provider.

Greenhouse GraphQL API

The Greenhouse Onboarding (GHO) API is a single GraphQL endpoint covering employees,

GRAPHQL

Pricing Plans 1

Pricing is part of the interface. Machine-readable plans tell you what a tier costs and includes before you commit — one of the six things the Kin Score reads for commercial clarity.

Published pricing tiers and plan structures.

Rate Limits 1

Rate limits are the difference between a demo that works and a production integration that doesn't fall over. Publishing them is an operational-transparency signal — and a hard requirement for any agent that plans its own throughput.

Documented rate limits and quota policies.

Greenhouse Io Rate Limits

5 limits

RATE LIMITS

FinOps 1

Cost, billing, and metering signals let a buyer model the financial operations of an API before it's live. We profile them for the same reason we profile pricing: the money is part of the contract.

Cost, billing, and metering signals for API financial operations.

Features 21

The notable capabilities this provider advertises, captured as structured features so they can be searched and compared instead of read one landing page at a time.

Notable capabilities this provider offers.

Structured hiring with interview kits, scorecards, and stage gates
Sourcing and CRM with prospect pools, prospect owners, and prospect stages
Greenhouse Sourcing Automation (Plus tier)
Candidate texting (Plus tier)
AI-powered job boards and AI candidate summaries
Real Talent — fraud detection, identity verification, candidate matching
Ezra AI Labs conversational AI (post-acquisition)
MyGreenhouse candidate experience portal
Hundreds of pre-built integrations across sourcing, assessment, background, video, HRIS, e-sign
Granular per-endpoint API key permissions (Harvest API)
On-Behalf-Of header pattern for partner-attributed actions
Recruiting Webhooks with HMAC SHA-256 signature verification
Onboarding Webhooks (beta)
Audit Log API (Pro tier) with JWT bearer auth and 30-day retention
Onboarding GraphQL API with query-complexity rate limiting
Greenhouse Onboarding for new-hire workflows, employee profiles, departments, locations
Job Board API for unauthenticated public read of careers data
Developer sandbox and sync (Pro tier)
SSO via SAML 2.0; SCIM-style user provisioning via Harvest /users
Business Intelligence Connector (Plus tier)
Custom fields across job, candidate, application, offer, opening, department, office, user, prospect

Scroll within the panel for all 21 ·

Semantic Vocabularies 1

JSON-LD contexts give the data shared meaning across APIs. We profile them because semantics are what let a machine reconcile 'customer' here with 'customer' somewhere else.

JSON-LD contexts and semantic vocabularies used across these APIs.

Greenhouse Io Context

0 classes · 11 properties

JSON-LD

Spectral Rules 1

Governance rulesets we run against this provider's specs — the automated checks behind parts of the score. Profiling them makes the quality bar explicit and re-runnable, not a matter of opinion.

Greenhouse API Rules

5 rules · 4 warnings

SPECTRAL

JSON Schema 2

Standalone JSON Schema definitions describe the data models behind the API. We profile them so the shapes are validatable on their own — useful long after a single request is forgotten.

Standalone JSON Schema definitions for this provider's data models.

Greenhouse Candidate

21 properties

JSON SCHEMA

Greenhouse Job

15 properties

JSON SCHEMA

Security Posture 4

Authentication, domain security, vulnerability disclosure, and trust-center signals — the evidence that a provider takes security seriously enough to document it. We profile it because you can't govern what you can't see.

Authentication, domain security, vulnerability disclosure, and trust-center signals.

Greenhouse Io Authentication

http/oauth2 · 3 schemes

SECURITY

Greenhouse Io Domain Security

TLSv1.3 · DMARC

SECURITY

Greenhouse Io Vulnerability Disclosure

Hackerone · security.txt · contact published

SECURITY

Greenhouse Io Trust Center

SOC 2, ISO 27001, ISO 27017, ISO 27018, PCI DSS, HIPAA, FedRAMP, GDPR

SECURITY

Scopes 1

OAuth scopes are the vocabulary of least-privilege access. Profiling them shows exactly what an integration — or an agent acting on a user's behalf — is allowed to do.

OAuth scopes governing access to this provider's APIs.

Greenhouse Io Scopes

1 scope · authorizationCode/clientCredentials

1 scopes

SCOPES

Agentic Access 1

An x-agentic-access contract marks which operations are safe for an agent to run on its own and which need a human in the loop. It is the difference between an API an agent can use and one it can use safely.

Recommended x-agentic-access execution contracts for AI agents.

Greenhouse Io Agentic Access

126 operations · 66 acting

126 operations · 66 acting

AGENTIC

Resources

Every other property we hold for Greenhouse — documentation, portals, status pages, policies, and corporate surface — grouped by the job it does, following the integrator's arc from getting started to running in production.

Get Started 1

Portal, sign-up, and the first successful call

Agent Surfaces 1

MCP servers, agent skills, and machine-readable catalogs

Operate 3

Status, limits, changes, and where to get help

Other 1

Properties that don't map to a standard resource type

← All providers · Data indexed from github.com/api-evangelist/greenhouse-io · machine-readable index on apis.io