Search companies

Search companies

Returns company IDs matching filters such as industry, size, location and technology stack.

Note: Collect each company's full record with the matching collect endpoint, by its returned company ID.

Set up

Use the first option your agent supports.

API (official)

• Base URL: https://api.coresignal.com/cdapi/v2
• Endpoint: POST /company_base/search/filter
• Auth: send the header apikey: $CORESIGNAL_API_KEY
• Get a key: https://dashboard.coresignal.com
• Docs: https://docs.coresignal.com/api-introduction/apis-overview

Before anything else, confirm access with the cheapest read-only call, like a list or a search. Never send or change anything to test access.

Rules

• Ask the user before anything that sends messages, costs money, or changes data, and say how many records it touches. One approval covers a batch the user has seen.
• Never print API keys.