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Home/Servers/Propstack

Propstack

I
by io.github.ashev87

Connect AI assistants to your Propstack real estate CRM (contacts, properties, deals).

Power your agent

Add this server

The publisher's own command. Not a PlugMCP endpoint.

Local command
npx -y [email protected]
Credentials from the publisher
  • PROPSTACK_API_KEY — Your Propstack V1 API key (Verwaltung > API-Schluessel in crm.propstack.de). Determines which endpoints are accessible.
Provider
Claude Code
PROPSTACK_API_KEY=<secret> claude mcp add io.github.ashev87-propstack-mcp -- npx -y [email protected]

Run in a terminal.

Claude Desktop
{
  "mcpServers": {
    "io.github.ashev87-propstack-mcp": {
      "command": "npx",
      "args": [
        "-y",
        "[email protected]"
      ],
      "env": {
        "PROPSTACK_API_KEY": "<secret>"
      }
    }
  }
}

claude_desktop_config.json

Step-by-step: add this in Claude

Remote URL or a command on your machine? How the two installs differ

Run on PlugMCP

Host a copy with our keys and logs.

A new server you create. It is not this listing's official endpoint. Use the publisher install when you want their URL and their credentials.

Launch

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Connect AI assistants to your Propstack real estate CRM (contacts, properties, deals).

Propstack MCP Server

Connect AI assistants (Claude, ChatGPT) to your Propstack real estate CRM.

Verbinden Sie KI-Assistenten mit Ihrem Propstack-CRM — Kontakte verwalten, Objekte durchsuchen, Deals pflegen, Besichtigungen planen und Suchprofile erstellen, alles per Sprache oder Chat.

What you can do / Was Sie damit machen koennen

  • Contact management — search, create, update, and tag contacts with GDPR tracking
  • Property search & management — filter by price, rooms, area, status; create and update listings
  • Deal pipeline — create deals, move through stages, track win/loss rates
  • Buyer matching — create search profiles from natural language ("3-Zimmer in Berlin, bis 400k, mit Balkon") and auto-match to new listings
  • Task & calendar — log call notes, set follow-up reminders, schedule viewings
  • Email — send templated emails linked to contacts and properties
  • 360-degree contact view — get a complete briefing before every call
  • Pipeline dashboards — deal counts and values per stage, stale deal alerts
  • Lead intake — one-call workflow: dedup, create contact, log notes, create deal, set reminder

Data protection (DSGVO): Using this server sends personal data from your Propstack CRM into the LLM you connect (Claude, ChatGPT, …). You — the Propstack customer — remain the data controller. See Datenschutz (DSGVO) for responsibility, legal basis, the fields data-minimization parameter, and notes on automated decisions.

Quick Start

1. Set your API key

export PROPSTACK_API_KEY=your_api_key_here

2a. Claude Desktop

Add to your Claude Desktop config (claude_desktop_config.json):

{
  "mcpServers": {
    "propstack": {
      "command": "npx",
      "args": ["-y", "propstack-mcp-server"],
      "env": {
        "PROPSTACK_API_KEY": "your_api_key_here"
      }
    }
  }
}

2b. Claude Code (CLI)

Add to your project's .mcp.json:

{
  "mcpServers": {
    "propstack": {
      "command": "npx",
      "args": ["-y", "propstack-mcp-server"],
      "env": {
        "PROPSTACK_API_KEY": "your_api_key_here"
      }
    }
  }
}

2c. ChatGPT and claude.ai (web / mobile)

These clients only connect to remote MCP servers over an HTTPS URL. They cannot start a local npx command, so this server can't be added to them directly — use Claude Desktop, Claude Code, Cursor or another local client instead.

If you need ChatGPT or the claude.ai apps, the server has to run behind an authenticated HTTPS endpoint. Do not expose it through an open tunnel or an unauthenticated stdio-to-HTTP bridge: anyone with the URL would get full read/write access to your CRM with your API key. Open an issue if you need a hosted setup.

2d. Cursor IDE

  1. Open Settings (Ctrl+,) → search "MCP"
  2. Edit MCP Servers JSON, or add mcp.json in project root / .cursor/

Option A — local project (after npm run build):

{
  "mcpServers": {
    "propstack": {
      "command": "node",
      "args": ["./dist/index.js"],
      "cwd": "C:/Users/you/path/to/propstack_mcp",
      "env": {
        "PROPSTACK_API_KEY": "your_api_key_here"
      }
    }
  }
}

Or use .env in project root — the server loads it automatically; you can omit the env block.

Option B — npx (published package or npx from local):

{
  "mcpServers": {
    "propstack": {
      "command": "npx",
      "args": ["-y", "propstack-mcp-server"],
      "env": {
        "PROPSTACK_API_KEY": "your_api_key_here"
      }
    }
  }
}

2e. Run directly

npm install propstack-mcp-server
PROPSTACK_API_KEY=your_key npx propstack-mcp-server

API Key / API-Schluessel

Get your Propstack API key:

  1. Log in to crm.propstack.de
  2. Go to Verwaltung > API-Schluessel (Administration > API Keys)
  3. Create or copy your V1 API key

Hinweis: Der API-Schluessel bestimmt die Berechtigungen. Stellen Sie sicher, dass Lese- und Schreibzugriff fuer die benoetigten Endpunkte aktiviert ist.

Available Tools (56)

Contacts (Kontakte)

ToolDescription
search_contactsSearch and filter contacts by name, email, phone, status, tags, broker, GDPR status, custom fields
get_contactGet full details of a single contact with related data
create_contactCreate a new contact (auto-dedup by email)
update_contactUpdate contact details, tags, GDPR status, broker assignment
delete_contactSoft-delete a contact (30-day recycle bin)
get_contact_sourcesList lead sources (ImmoScout24, Website, Empfehlung, etc.)
search_contacts_by_phoneLook up a contact by phone number (formatting-insensitive)

Properties (Objekte)

ToolDescription
search_propertiesSearch properties with 11 range filters, 17 sort fields, custom-field filters
get_propertyGet full property details including media, custom fields, energy certificate, equipment, layout, cost, and marketing fields
create_propertyCreate a new property listing, including German residential exposé fields (energy certificate, equipment, costs)
update_propertyUpdate price, status, description, broker assignment, and German residential exposé fields
get_property_statusesList property statuses (Verfuegbar, Reserviert, Verkauft, etc.)

Tasks (Aufgaben & Notizen)

ToolDescription
create_taskCreate a note, to-do, appointment, or cancellation (polymorphic)
update_taskMark done, reschedule, update notes
get_taskGet task details with linked contacts, properties, projects

Deals (Pipeline)

ToolDescription
search_dealsSearch deals by stage, pipeline, category, broker, feeling score
create_dealLink a contact to a property at a pipeline stage
update_dealMove deal through pipeline stages, update price/notes

Search Profiles (Suchprofile)

ToolDescription
list_search_profilesList what buyers/renters are looking for
create_search_profileCapture buyer criteria from natural language
update_search_profileAdjust budget, cities, room count, features
delete_search_profileRemove a search profile

Projects (Projekte)

ToolDescription
list_projectsList development projects with unit counts
get_projectGet project details with all units, media, documents

Activities & Events (Aktivitaeten & Termine)

ToolDescription
search_activitiesFull activity timeline for a contact, property, or project
list_eventsCalendar events — viewings, meetings, filtered by date/state

Emails (E-Mails)

ToolDescription
send_emailSend email using a Propstack template (snippet)
update_emailMark read/archived, categorize, link to CRM records

Documents (Dokumente)

ToolDescription
list_documentsList files attached to a property, project, or contact
upload_documentUpload a document (base64 data URI)

Images (Bilder)

ToolDescription
list_property_imagesList a property's images and floor plans in portal order (IDs, titles, flags)
upload_imageUpload an image to a property or project (base64 data URI, portal visibility)
update_imageChange an image's title (incl. title_de / title_en) or portal visibility

Relationships (Beziehungen)

ToolDescription
create_ownershipLink a contact as property owner (Eigentuemer)
create_partnershipLink a contact as buyer, tenant, etc. (Kaeufer, Mieter)

Lookups (Konfiguration)

ToolDescription
list_pipelinesGet deal pipelines with stages (IDs, names, positions)
get_pipelineGet a single pipeline with stage details
list_tagsList tags/groups (Merkmale) — filter contacts by group IDs
create_tagCreate a new tag for contacts, properties, or activities
list_activity_typesList note/todo/event templates for create_task
list_contact_statusesList contact statuses for search/assign
list_reservation_reasonsList deal cancellation reasons
list_custom_fieldsDiscover custom field definitions (names, types, options)
list_usersList all brokers/agents with contact info
list_teamsList teams/departments with member assignments
list_locationsList geographic areas (Geolagen) for location matching

Smart Composites (Intelligente Workflows)

ToolDescription
full_contact_360Complete contact dossier — info, search profiles, deals, activity
property_performance_reportDays on market, inquiry count, pipeline breakdown, activity summary
pipeline_summaryDeals per stage, total values, stale deals needing attention
smart_lead_intakeFull lead workflow: dedup, create/update, log notes, deal, reminder
match_contacts_to_propertyFind buyers whose search profiles match a property
match_properties_to_contactReverse matching: find properties that fit a contact's search profiles

Admin (Verwaltung)

ToolDescription
list_webhooksList all configured webhook subscriptions
create_webhookSubscribe to CRM events (CLIENT_CREATED, PROPERTY_UPDATED, etc.)
delete_webhookRemove a webhook subscription
get_contact_favoritesGet properties a contact has favorited

Example Conversations / Beispiel-Konversationen

Morning Briefing / Morgen-Briefing

You: What's on my calendar today?

AI: calls list_events with today's date range — You have 3 viewings scheduled...

Du: Gibt es neue Leads seit gestern?

KI: ruft search_contacts mit created_at_from=gestern auf — 5 neue Kontakte...

Lead Intake / Leaderfassung

You: I just got off the phone with Maria Schmidt, +49 157 1234 5678. She's looking for a 3-room apartment in Berlin, budget 300-400k, must have a balcony. She found us on ImmoScout.

AI: calls smart_lead_intake — Contact created (ID: 4521), call note logged, follow-up reminder set for tomorrow 9:00. Would you like me to create a search profile for her criteria?

Property Matching / Objekt-Matching

Du: Wir haben ein neues Listing: 3-Zimmer-Wohnung in Charlottenburg, 385.000 EUR. Wer kommt als Kaeufer in Frage?

KI: ruft match_contacts_to_property auf — 12 passende Suchprofile gefunden. Top 3: Herr Weber (Score 95%), Frau Mueller (Score 88%), Herr Kim (Score 85%)...

Pipeline Review

You: How's our sales pipeline looking? Any stale deals?

AI: calls pipeline_summary — 47 active deals, total value 12.3M EUR. 5 deals haven't been updated in 14+ days...

Pre-Call Briefing / Vor dem Anruf

Du: Gib mir alles ueber Kontakt 3847 — ich rufe gleich an.

KI: ruft full_contact_360 auf — Herr Weber, Rating 3 Sterne, sucht 3-Zimmer in Berlin/Potsdam bis 400k. 2 aktive Deals, letzte Aktivitaet vor 3 Tagen...

Datenschutz (DSGVO)

English summary: Using this MCP server sends personal data from your Propstack CRM into whichever LLM you connect. You (the Propstack customer) are the data controller (Verantwortlicher) under Art. 4(7) GDPR — the tool author hosts and processes nothing. The German section below covers controller responsibility, the legal basis your LLM processing needs, the fields parameter for data minimization, automated-decision notes for match_contacts_to_property, and audit logging. These points apply to any LLM tool handling customer data; they are stated here because they are easy to overlook.

Verantwortlichkeit

Dies ist ein quelloffenes Werkzeug (Open Source). Jeder Nutzer verbindet es über seinen eigenen API-Schluessel mit seinem eigenen Propstack-Konto. Der Server ist zustandslos, laeuft lokal beim jeweiligen Nutzer und speichert keine Daten. Es werden keine Daten durch den Autor des Werkzeugs gehostet oder verarbeitet. Der Propstack-Kunde, der dieses Werkzeug einsetzt, ist der Verantwortliche im Sinne von Art. 4 Nr. 7 DSGVO.

Verarbeitung durch das LLM

Bei der Nutzung dieses Werkzeugs werden personenbezogene Daten (Namen, Adressen, Kontaktdaten sowie je nach Tool auch Finanz- bzw. Deal-Daten) in das Kontextfenster des jeweils verbundenen LLM (Claude, ChatGPT usw.) uebertragen. Dies stellt einen Verarbeitungsvorgang im Sinne von Art. 4 Nr. 2 DSGVO dar. Der Verantwortliche benoetigt hierfuer:

  • eine Rechtsgrundlage nach Art. 6 DSGVO,
  • eine entsprechende Angabe in der eigenen Datenschutzerklaerung (Transparenzpflichten nach Art. 13/14 DSGVO gegenueber den betroffenen Personen),
  • gegebenenfalls einen Auftragsverarbeitungsvertrag (AVV) mit dem LLM-Anbieter.

Dies gilt fuer jedes LLM-gestuetzte Werkzeug, das Kundendaten verarbeitet, und ist nicht spezifisch fuer diesen MCP-Server — es wird hier dennoch ausdruecklich genannt, da es leicht uebersehen wird.

Hinweis zu automatisierten Entscheidungen (match_contacts_to_property)

Das Tool match_contacts_to_property erzeugt einen Uebereinstimmungs-Score (Ranking) zwischen Kontakten und einem Objekt — zur Vorlage fuer eine menschliche Pruefung. Es ist als Entscheidungsunterstuetzung konzipiert, nicht als autonomer Entscheider: Der Makler prueft die Ergebnisse und handelt manuell. Dadurch faellt die Nutzung nicht unter Art. 22 DSGVO (der ausschliesslich automatisierte Entscheidungen mit rechtlicher oder aehnlich erheblicher Wirkung betrifft). Der Verantwortliche sollte jedoch sicherstellen, dass das Tool auch tatsaechlich so eingesetzt wird — also nicht ohne menschliche Pruefung in eine vollstaendig automatisierte Ansprache eingebunden wird.

Datenminimierung (fields-Parameter)

Die Tools, die personenbezogene Daten in groesserem Umfang zurueckgeben — search_contacts, search_properties, search_deals und full_contact_360 — unterstuetzen einen optionalen fields-Parameter. Damit lassen sich gezielt nur die benoetigten Felder abrufen (z. B. ["first_name", "last_name", "email"]). Ohne fields bleibt das Verhalten unveraendert (alle Felder werden zurueckgegeben). Es wird empfohlen, dass Verantwortliche fields nutzen, um nur die fuer den jeweiligen Zweck erforderlichen Daten zu verarbeiten — im Sinne von Datenschutz durch Technikgestaltung (Art. 25 DSGVO).

Audit-Logging / Zugriffskontrolle

Protokollierung von Zugriffen und Zugriffskontrolle liegen in der Verantwortung des Verantwortlichen — etwa ueber die Berechtigungssteuerung von Propstack (API-Schluessel-Berechtigungen) oder ueber Protokollierung auf Client- bzw. Sitzungsebene. Da der Server zustandslos ist und lokal beim jeweiligen Nutzer laeuft, ist eine solche Protokollierung nicht im Werkzeug selbst enthalten.

Development

git clone <repo-url>
cd propstack-mcp-server
npm install
npm run build    # tsc → dist/
npm start        # requires PROPSTACK_API_KEY

Project Structure

src/
  index.ts                 # Server entry point (stdio transport)
  propstack-client.ts      # HTTP client with auth, retry, error handling
  types/
    propstack.ts           # TypeScript interfaces for all API responses
  tools/
    helpers.ts             # Shared formatting utilities
    contacts.ts            # 7 contact tools
    properties.ts          # 5 property tools
    tasks.ts               # 3 task tools (polymorphic: note/todo/event/cancel)
    deals.ts               # 3 deal pipeline tools
    search-profiles.ts     # 4 search profile tools
    projects.ts            # 2 project tools
    activities.ts          # 2 activity/event tools
    emails.ts              # 2 email tools
    documents.ts           # 2 document tools
    relationships.ts       # 2 relationship tools (ownership/partnership)
    lookups.ts             # 8 lookup/config tools
    composites.ts          # 5 smart composite tools
    admin.ts               # 5 admin tools (webhooks, export, favorites)

License

MIT

How do I install Propstack?
Copy the stdio config for Cursor, Claude Desktop, Claude Code, or VS Code on this page. It uses the publisher's install, not a PlugMCP proxy.
Does Propstack need an API key?
The publisher lists these environment variables: PROPSTACK_API_KEY.
What transport does Propstack use?
Propstack runs locally over stdio.
When was Propstack last checked?
Last checked 2026-10-16. Connect AI assistants to your Propstack real estate CRM (contacts, properties, deals).

No tool list yet. Remote servers get one after the first health check.

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