MCP connector | ProxDeal × Claude
ProxDeal in Claude
Connect Claude to the deepest, most up-to-date company data in DACH.
Why ProxDeal + Claude
Claude thinks brilliantly. ProxDeal supplies the data.
Language models know a great deal, but they lack current facts on many mid-market companies and SMEs.
ProxDeal closes that gap. As an MCP connector, it feeds Claude up-to-date company data for the DACH region, drawn straight from primary sources.
"I quickly hit my limits with smaller regional businesses where the ownership structure is unclear."
Full ownership structure, current financials and succession signals, sourced from registers and annual accounts – in the conversation within seconds.
The missing piece for M&A research with Claude
Why ProxDeal belongs in Claude as a connector.
Reasoning meets facts
Avoid hallucinations in Claude with reliable ProxDeal data.
Add your own context
Automatically factor in information on your mandates, portfolio and strategy, tailored to your needs.
Agentic M&A workflows
Build longlists, analyse targets, spot succession signals and prepare outreach – right in your chat with Claude.
Use cases
M&A research in conversation with Claude.
"Find add-on targets that offer synergies with our portfolio company."
generate_longlistA buy-side longlist built around your portfolio: 1,000+ AI analysts assess synergy potential and rank the targets.
"Build a buyer longlist for our current sell-side mandate."
generate_longlistStrategic and financial buyers that fit the mandate, ranked by strategic fit and likelihood to acquire.
"Find new mandates similar to the deals we've successfully closed."
search_companiesMandate origination based on your track record: similar companies showing sale and succession signals.
Build a longlist of filtration technology manufacturers in Bavaria with €10m to €50m in revenue.
Found 87 matching manufacturers, ranked by match score. Here are the top 3:
Setup
Connected in three steps.
Account & API key
Create a ProxDeal account and generate an API key in the dashboard. This key securely connects Claude to your ProxDeal data.
Add the connector in Claude
Add ProxDeal to Claude as a custom connector (MCP): in Claude Desktop via the configuration file, in Claude for web, Team and Enterprise via the connector settings.
Research in plain language
Simply ask your question in the chat. Claude calls the right ProxDeal tools and answers with sourced, up-to-date data from the DACH region.
{
"mcpServers": {
"proxdeal": {
"command": "npx",
"args": ["-y", "@proxdeal/mcp-server"],
"env": {
"PROXDEAL_API_KEY": "your_api_key"
}
}
}
}In Claude for web, Team and Enterprise, add ProxDeal as a custom connector via the connector settings instead. View the API & MCP documentation
The difference
A combination that makes sense
Claude + ProxDeal
Claude on its own
Traditional database
DACH mid-market coverage
Complete, 7M+ companies
Patchy
Partial
Financial data freshness
100% up to date
Outdated training data
Often outdated
Backed by primary sources
Yes
–
Partial
Usable in conversation
Yes
Yes
–
Longlist & Excel export
Yes
–
Limited
Shareholders & UBOs
Yes
–
Partial
FAQ
ProxDeal in Claude at a glance.
What is the ProxDeal MCP connector for Claude?
The ProxDeal MCP connector is an integration built on the Model Context Protocol that gives Claude direct access to the ProxDeal database. Within the conversation, Claude can build longlists, retrieve company profiles, financials and shareholder data, and research M&A deals and investors across the DACH region.
What data can Claude access through ProxDeal?
Every company data point available in ProxDeal can be queried.
How does ProxDeal differ from Claude's own knowledge?
Claude runs on highly capable models, but it has no reliable company information and is prone to hallucinations. ProxDeal closes exactly this gap with the deepest, most up-to-date company data in DACH, backing every piece of information with primary sources.
Does it work with Claude Desktop and Claude for web?
Yes. In Claude Desktop, you add ProxDeal as an MCP server via the configuration file; in Claude for web, Team and Enterprise, you add it as a custom connector in the connector settings.
Is it GDPR compliant?
Yes. ProxDeal is hosted in Frankfurt, complies with the GDPR and the EU AI Act, and transmits data with SSL encryption. The connection runs through your personal API key.
Do I need technical knowledge to set up ProxDeal in Claude?
No. You generate an API key in the ProxDeal dashboard and add ProxDeal as a connector in Claude. From then on, plain language is all you need: Claude translates your request into the right ProxDeal calls on its own.

Bring superior data and longlisting skills into Claude.
Add ProxDeal as a connector and run your M&A research right in the conversation: sourced, up to date and exportable. Set up in a single click.