A single API for working with company data — from search to events. No more connecting multiple systems or manually tracking changes.
Add any company to your watchlist by NIP, REGON, or KRS. Every day the system compares fresh registry snapshots against the previous state and generates typed events for every detected change.
Manually tracking changes across companies is impossible at scale. Watchlist does it automatically — you watch the companies that matter to you, and the system tells you every day what changed. Name change, new address, suspension, bankruptcy filing — every event is described, categorized, and delivered with full context.
Detect supplier changes before they impact your business. Know immediately when a company changes address, suspends operations, or declares bankruptcy.
Automatically detect changes in client companies relevant to regulatory compliance. Every event with a date and full context.
Early warning signals — suspension, bankruptcy, change of legal form. React before the problem affects your business.
Automatically sync company data changes with your system. No more outdated addresses and phone numbers.
# Dodaj do watchlisty POST /api/v1/companies/add { "name": "NIP", "value": ["1234567890"] } # Pobierz zdarzenia z watchlisty GET /api/v1/watchlist/events?event_type=COMPANY_NAME_CHANGED&from_date=2026-01-01
The Company Search API enables precise searches of the company register using a set of filters tailored to your use case. Each result is a direct response to your query—without redundant or random data.
You can narrow your results to companies with specific data, including contact information, and build exactly the dataset you need.
Filter companies by any criteria — contact, industry, legal form, or registration date. You decide what matters.
Build precise company segments based on activity codes, location, legal form, and time of operation. Data tailored to your use case.
Each result includes a complete company profile—identifiers, addresses, activities, and available contact information. All structured and ready to use.
Leverage data within your system—CRM, analytics, or automation. The API delivers data in a form ready for processing.
Pull new companies from your industry every day — ones that have contact data. Build your pipeline before the competition does.
Before signing a contract, verify the company exists in the registry, check its status, and confirm contact details are current.
Fill in missing data in your existing customer base — addresses, PKD codes, current phone numbers and email addresses.
Analyze the number of companies in a given industry, region, or registration date range. First-hand data.
GET /api/v1/companies/search?has_contact=phone&activities=47&open_from=2025-01-01 curl "https://api.alexambros.com/api/v1/companies/search?has_contact=phone&activities=47&open_from=2025-01-01" \ -H "Authorization: Bearer sk_api_xxxx"
Status, response time and payload changes - saved as events.
Add endpoints via API. Set check interval, expected status code, and optional payload.
Every check stores status code, response time, and body. Full history accessible via API.
Get notified when an endpoint goes down or the response deviates from expected. Configurable thresholds.
Full API documentation, authentication guide, and endpoint reference — everything you need to get started.