Greenhouse ATS

PyPI CI Python 3.10+ License: MIT open-greenhouse-mcp MCP server

Production-ready MCP server for Greenhouse, designed for recruiters and hiring teams.

Most Greenhouse MCP servers mirror the API endpoint by endpoint. This one is built for recruiting teams: safe defaults, role-based profiles, and workflow tools that turn multi-step API operations into single actions.

Choose a Profile

Profile	Tools	Can write?	Recommended for
read-only	103	No	First-time setup, reporting, hiring managers
recruiter	127	Yes (safe ops)	Day-to-day recruiting work
full	181	Yes (all)	Admins, ops, advanced automation

Quick Start

pip install open-greenhouse-mcp

Add to your MCP client config (Claude Desktop: ~/Library/Application Support/Claude/claude_desktop_config.json, Cursor: Settings > MCP):

{
  "mcpServers": {
    "greenhouse": {
      "command": "open-greenhouse-mcp",
      "env": {
        "GREENHOUSE_API_KEY": "your-harvest-api-key",
        "GREENHOUSE_TOOL_PROFILE": "read-only"
      }
    }
  }
}

Start in read-only mode to validate connectivity and tool behaviour, then switch to recruiter or full when you need write access.

Your API key is in Greenhouse under Configure > Dev Center > API Credential Management.

What You Can Ask

• "Show me the pipeline for our Senior Engineer role"
• "Who needs my attention this week?"
• "What are our conversion rates for the Backend Intern role?"
• "Find Sarah Chen and pull up her resume"
• "Which sources are actually producing hires?"
• "Bulk reject everything inactive for 30+ days on the Account Manager role"
• "Screen this candidate for the Backend Engineer role — give me the full picture"
• "Search our engineering pipelines for anyone with Rust and distributed systems experience"
• "What new applications came in since yesterday?"

See more examples with full output.

See it in action

Safety

• Access is limited by your Greenhouse API key permissions
• Read-only profile is recommended for first setup
• Destructive actions require explicit IDs — the server never infers targets
• Write operations support audit attribution via GREENHOUSE_ON_BEHALF_OF
• Bulk actions are rate-limited to stay within API limits

Compatibility

Client	Status
Claude Desktop	Supported
Claude Code	Supported
Cursor	Supported
Transport	stdio
Python	3.10+

Startup

When the server starts, it logs its configuration:

open-greenhouse-mcp v0.4.0
Profile: recruiter | Tools: 127 | Writes: recruiter-safe | APIs: harvest, ingestion

What's Included

• Screening & sourcing tools — 6 tools for candidate screening, resume search with boolean keywords, daily digest, and location detection
• Recruiter workflow tools — 13 composite tools for pipeline views, analytics, search, and bulk operations
• Harvest API coverage — 148 tools across candidates, applications, jobs, offers, interviews, and more
• Job Board API — 13 tools for public job listings and application submission
• Optional webhooks and ingestion — 14 tools for event-driven workflows and partner integrations

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Reference

Screening & Sourcing Tools

Tools for candidate evaluation and proactive talent search.

Tool	What it does
screen_candidate	Complete screening package — profile, resume text, location, screening answers, job description, history
fetch_new_applications	Applications since a date, grouped by job — the daily recruiter digest
scan_pipeline_resumes	Search resume text across pipelines with boolean keywords (required/preferred/exclude)
search_pipeline_candidates	Search pipelines by structured fields — title, company, education, experience, tags
scan_all_candidates	Database-wide candidate search by structured fields with date bounds
batch_read_resumes	Batch-fetch and extract resume text for multiple candidates

Composite Tools

High-level tools that combine multiple API calls into single operations.

Tool	What it does
pipeline_summary	Full pipeline view — candidates grouped by stage with names and days-in-stage
candidates_needing_action	Find stale applications and interviews missing scorecards
stale_applications	Applications with no activity for N days, sorted by stalest
pipeline_metrics	Conversion rates, hire/rejection rates, time-in-stage per stage
source_effectiveness	Which candidate sources produce the best hire rates
time_to_hire	Average, median, min, max days from application to hire
bulk_reject	Reject multiple applications in one call with rate-limit handling
bulk_tag	Tag multiple candidates in one call
bulk_advance	Advance multiple applications to next stage
search_candidates_by_name	Find candidates by first or last name
search_candidates_by_email	Look up a candidate by exact email
read_candidate_resume	Download and return a candidate's most recent resume
download_attachment	Download any Greenhouse attachment by URL

Profile Details

Recruiter includes all read tools, all screening/sourcing tools, all composite workflows, and recruiter-safe writes: reject, advance, hire, move, tag, notes, attachments, interviews, prospects, and bulk operations. It excludes job creation, user management, custom field configuration, candidate deletion, and webhook management.

Read-only skips all write operations. GREENHOUSE_READ_ONLY=true also works as a shorthand.

Configuration

Variable	Required	Description
GREENHOUSE_API_KEY	Yes*	Harvest API key
GREENHOUSE_BOARD_TOKEN	Yes*	Job board URL slug. *At least one required
GREENHOUSE_TOOL_PROFILE	No	full (default), recruiter, or read-only
GREENHOUSE_ON_BEHALF_OF	No	Greenhouse user ID for write audit trail
GREENHOUSE_LOG_LEVEL	No	debug, info, warning (default), error
GREENHOUSE_LOG_FILE	No	Log file path (defaults to stderr)

Logging

Structured JSON logging for observability. Set GREENHOUSE_LOG_LEVEL=info to enable:

{"ts": "2026-04-14T12:31:58", "level": "info", "event": "api_call", "method": "GET", "url": "...", "status": 200, "latency_ms": 245.0}

More Documentation

• API Reference — Full tool breakdown by category
• Usage Examples — Real conversations with full output
• Advanced Setup — Webhook receiver, ingestion API, board-token mode
• Development — Contributing, testing, project structure

Feedback

• Bugs and features: Open an issue
• Questions: Start a discussion
• Security: See SECURITY.md
• Contributing: See CONTRIBUTING.md

License

MIT License -- Ben Monopoli. See LICENSE.