Which integrations are available for this server?

Allows management of bring-your-own-key (BYOK) API keys for OpenAI, enabling the MCP server's AI features to use the user's OpenAI account. Provides plan upgrade functionality via Stripe Checkout, returning a checkout URL for Pro or Scale subscriptions. Provides tools to retrieve TED EU-threshold tenders data for companies by NIP, enriching company profiles with public procurement information.

How do I use Compabase MCP?

1. Click on "Deploy Server". 2. Wait a few minutes for the server to deploy. Once ready, it will show a "Started" state. 3. In the chat, type @ followed by the MCP server name and your instructions, e.g., "@Compabase MCP find active IT companies in Warsaw with revenue over 5 million PLN" That's it! The server will respond to your query, and you can continue using it as needed. Here is a step-by-step guide with screenshots.

Compabase MCP

by ContentWriterco

Overview Schema Source Related Servers Discussions Admin

Remote

🇵🇱 Polish Companies MCP Server – Compabase

MCP Protocol License Compabase Docs Free Tier

Compabase MCP is a Model Context Protocol server that gives AI assistants – Claude, Cursor, Windsurf, VS Code, and any MCP-compatible client – direct access to 3 million+ Polish companies from the KRS (National Court Register) and CEIDG registries, plus financials, people, rankings, and public-register enrichments (SUDOP, BZP, TED, URE, BDO, GPW, KRZ, CRBR, MSiG, EU funds).

Ask in plain language. The model maps prompts to structured tools over Streamable HTTP (JSON-RPC 2.0).

Quick Start

You can connect without a key. The agent signs you up and writes mcpk_… into the client config after email confirmation.

Cursor / Windsurf / VS Code – .cursor/mcp.json (or the equivalent MCP JSON):

{
  "mcpServers": {
    "compabase": {
      "url": "https://compabase.com/api/mcp"
    }
  }
}

Then ask the agent to sign you up (request_signup with your email). After you click the magic link, poll check_signup until status: ready. Restart the client if it does not hot-reload MCP config.

Claude Desktop – claude_desktop_config.json (after you have a key):

{
  "mcpServers": {
    "compabase": {
      "url": "https://compabase.com/api/mcp",
      "headers": {
        "Authorization": "Bearer mcpk_YOUR_KEY_HERE"
      }
    }
  }
}

Claude.ai (Web / Mobile Connectors):

Go to Settings → Connectors → Add Custom Connector
URL: https://compabase.com/mcp?apiKey=mcpk_YOUR_KEY_HERE
Authentication: None (Detected) (key is passed in URL)

Keys can also be created in Integrations → MCP. MCP keys (mcpk_…) are separate from REST API keys (cb_…).

Field	Value
Endpoint	`POST https://compabase.com/api/mcp` or `https://compabase.com/mcp`
Authentication	`Authorization: Bearer mcpk_…`, `X-API-Key: mcpk_…`, or `?apiKey=mcpk_…`
Protocol	MCP Streamable HTTP (JSON-RPC 2.0)
MCP version	`2024-11-05`
Server	`compabase` 1.6.2

Related MCP server: nipregon-mcp

Example prompts

Find active IT companies in Warsaw with revenue over 5 million PLN.
What is the latest revenue and net profit of Allegro?
List board members of the company with KRS 0000028860.
How many active companies in mazowieckie have primary PKD starting with 62?
What is the median revenue in PKD section J?
Is Orlen listed on GPW? What is the ticker and P/E?

Available tools

Live traffic is always POST https://compabase.com/api/mcp with method: tools/call and params.name set to the tool name. Identify a company with name, krs, or nip when a tool accepts them. Monetary filters default to PLN.

Full schemas: mcp.yaml · interactive docs.

Onboarding (no key)

Tool	Purpose
`request_signup`	Send a magic-link email; returns `setup_id`
`check_signup`	Poll until email confirmed; returns `mcp_key` once
`list_plans`	Billing plans and limits; then `upgrade_plan`

Company data

Tool	Purpose
`search_companies`	Filter KRS companies (name, PKD, city, voivodeship, financials, status, contacts). Up to 50 rows. Does not browse JDG.
`count_companies`	Count matching KRS companies (same filters, no sort/limit)
`get_company`	One profile + headline financials for the latest filed period
`get_financials`	Full P&L / balance-sheet metrics per fiscal period
`get_company_people`	Board, shareholders, proxies, other roles
`get_company_rankings`	Revenue rank in PKD / region / Poland
`get_financial_stats`	Sector/region/PKD aggregates (median, p25–p90, n, …)
`execute_sql`	Read-only `SELECT` / `WITH … SELECT` for custom joins

Register enrichments

Tool	Source
`get_company_sudop`	SUDOP public aid / de minimis (NIP)
`get_company_bzp`	BZP procurement awards and buyer notices (NIP)
`get_company_ted`	TED EU-threshold tenders (NIP)
`get_company_ure`	URE energy concessions (NIP)
`get_company_bdo`	BDO waste / packaging register (NIP)
`get_company_gpw`	GPW / NewConnect / GlobalConnect listing + delayed quotes
`get_company_fe`	European Funds (MFiPR lists, cohesion)
`get_company_fts`	European Commission FTS grants (Horizon, LIFE, …)
`get_company_msig`	Court and Commercial Gazette (MSiG)
`get_company_krz`	KRZ insolvency / restructuring (KRS or CEIDG NIP)
`get_company_beneficiaries`	CRBR beneficial owners (KRS). Names only – never PESEL

Account (skip `mcp_queries`)

Tool	Purpose
`get_usage`	Period usage: `mcp_queries`, `api_requests`, `export_companies`, `ask_ai_credits`, `watchlist_companies`
`get_plan`	Active plan, limits, prepaid credit, reset date
`list_watchlist` / `add_to_watchlist` / `remove_from_watchlist` / `batch_add_to_watchlist`	Watchlist (KRS or NIP, including CEIDG)
`list_api_keys` / `create_api_key` / `delete_api_key`	REST keys (`cb_…`)
`list_mcp_keys` / `create_mcp_key` / `delete_mcp_key`	MCP keys (`mcpk_…`)
`export_companies`	Bulk CSV / XLSX / JSON (up to 500 rows). Uses the export meter, not `mcp_queries`
`upgrade_plan`	Stripe Checkout URL (`pro` / `scale`)
`set_webhook_url`	Watchlist change webhooks
`get_byok_keys` / `set_byok_key` / `delete_byok_key`	BYOK (OpenAI / Claude / Gemini), Pro+
`set_notification_preferences`	Email alerts for watchlist changes

Quota

Data tools (search, financials, enrichments, SQL): each successful tools/call consumes one mcp_queries unit.

Account tools skip mcp_queries. export_companies consumes export_companies instead.

initialize, tools/list, and ping do not consume quota. Limits reset with the billing period.

Plan	MCP queries / month	API requests	Exports
Free	10	100	50
Pro	50	5 000	1 000
Scale	1 000	100 000	20 000
Enterprise	Custom	Custom	Custom

See compabase.com/pricing.

Protocol

Property	Value
Endpoint	`POST https://compabase.com/api/mcp`
Transport	Streamable HTTP
Protocol version	`2024-11-05`
Capabilities	`tools`
Server name	`compabase`
Server version	`1.6.2`

Method	Description
`initialize`	Handshake
`tools/list`	Tools and schemas
`tools/call`	Execute a tool
`ping`	Keep-alive
`notifications/initialized`	Client ready

Compabase REST API – OpenAPI 3.1 (v1.yaml)
Interactive API docs
Interactive MCP docs
compabase.com

License

MIT

This server cannot be deployed

One endpoint for every MCP toolRayrun runs every MCP server behind one URL and holds the credentials. Each call is decided per client, tool, and argument, then recorded.ray.runAd

Maintenance

ActivityMaintained

ResponsivenessNo issues

Resources

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