Interest Signals

Detected investor attention — which investors are looking at which companies and founders, and how strongly.

Detect investor attention before deals are announced. Interest Signals show which investors are engaging with companies or founders — often weeks before a funding round or acquisition becomes public. Each signal captures who is interested, how strong the interest is, and what they’re looking at.

Data categories

• Investor activity — which investors are showing interest (signal_investors, returned as names).
• Signal strength — a confidence score (signal_score, 1–10) based on engagement patterns.
• Target — the company or person the interest is focused on (signal_type is Company or Talent).
• Context — a plain-English signal_summary, plus funding context at signal time (signal_total_funding_usd, signal_last_funding_date) and signal_date.
• Source type — where the signal was observed (source_types: insider, venture_capital, angel, journalist, influencer, investment_bank, private_equity, investor).

Example (trimmed)

{
  "signal_id": "02d32673-f1ab-40a1-93c5-a3a36a10d342",
  "signal_date": "2025-12-01",
  "signal_type": "Company",
  "signal_score": 9,
  "signal_summary": "Porcupine VC are in talks with Hedgehog Analytics as it seeks seed capital.",
  "source_types": "insider",
  "entity_id": "5e3a7f2b0aa7a3270a55f2a8",
  "signal_investors": [{ "name": "Bluebirds Capital" }]
}

Endpoints

Method	Endpoint	Returns
GET	Get Investor Interest Signal by ID	The matching interest signal(s)
POST	Bulk get Investor Interest Signals by ID	Up to 50 signals in one request
GET	Get Investor Interest Signals saved search details	A saved search’s name, query ID, and count
GET	Get Investor Interest Signals saved search results	Signals matching a saved search

How to use the API

Monitor a feed (most common)

Create an Interest Signals search in the Specter app and share it with the API, then poll Get Investor Interest Signals saved search results with new=true to pull just that week’s new signals. Discover the searchId with Get all saved searches.

Look up specific signals

Interest signal IDs come from other records — a company’s specter_strategic_signal_ids, a person’s investor_signal_ids, or an investor’s strategic_signal_ids. One → Get Investor Interest Signal by ID; many → Bulk get Investor Interest Signals by ID.

Expand from a signal

• entity_id → Get company by ID (Company signals) or Get person info by ID (Talent signals). When entity_id is absent, use the embedded company domain or person linkedin_url.
• signal_investors[].name → resolve to a Specter record via Look up investors or Search investor name (the signal carries investor names, not IDs).

Good to know

• Signals use UUIDs.
• signal_score is a 1–10 confidence score.
• signal_type is Company or Talent — the target can be a company or a person.
• entity_id is the company ID (Company signals) or person ID (Talent signals); it may be absent, in which case use the embedded company domain or person linkedin_url.
• Investors are returned as names (signal_investors[].name), not IDs — resolve them via investor lookup.
• Saved searches must be shared with the API to be reachable; empty results are valid, not an error.
• Get Investor Interest Signal by ID costs 1 credit per request.