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GET
List signal types API

Frequently asked questions

A signal is a state transition in a domain’s technology stack. Adoption means a domain newly started using a technology, churn means it dropped one, switch means it replaced one technology with a competitor in the same category, and whitespace means it runs an anchor technology but nothing at all in a target category. Each is a different question a sales or competitive team asks.
No. GET /v1/signals returns metadata only and is free. It is also exempt from the tighter signals rate limit that applies to the other /v1/signals/* endpoints. The data endpoints cost 1 credit each.
It lists every filter you can apply to a signal query. The filters array holds LinkedIn company predicates like country and employees. The web_filters array holds crawl-derived predicates like has_email and language. Passing any of them narrows results to matching companies; passing company=true alone attaches company cards without narrowing anything.

Authorizations

Authorization
string
header
required

API key in format tapi_live_[32-char] (live) or tapi_test_[32-char] (test)

Response

Available signal types and the shared filter vocabulary

success
boolean
Example:

true

data
object