Stealth Startup Discovery API
StartupHub.ai is the only API that surfaces stealth-mode startups, companies operating before a public launch, and exposes them through one REST and MCP call. Crunchbase and PitchBook only index companies after they raise or launch. We find them before.
curl -G https://www.startuphub.ai/api/v1/startups \ -H "Authorization: Bearer sk_live_..." \ --data-urlencode "stealth=true" \ --data-urlencode "sector=AI Infrastructure" \ --data-urlencode "country=US" \ --data-urlencode "sort=created_at.desc" \ --data-urlencode "limit=50"
Why no other API covers stealth
Every incumbent indexes companies after they raise or launch. A stealth company has done neither.
| Provider | Why it misses stealth | StartupHub.ai |
|---|---|---|
| Crunchbase API | Indexes companies after funding or a public profile. No stealth coverage. | Surfaces companies operating in stealth, before a public launch. |
| PitchBook / CB Insights | Deep on established companies. Five-figure contracts. No stealth, no API self-serve. | Self-serve API, stealth-mode rows, pay for what you query. |
| Product Hunt | Only shows companies on launch day, the opposite of stealth. | Finds them before launch day, while they are still quiet. |
| Wellfound (AngelList) | Depends on a company self-creating a profile. No public API. | No self-submission required. Real REST + MCP API. |
| DIY (LinkedIn + scrapers) | Months to build, brittle, constant maintenance. | One API call. We maintain the pipeline so you do not have to. |
What you get
Verified stealth discovery, structured and agent-ready.
Stealth filter, one parameter
GET /api/v1/startups?stealth=true returns only companies operating in stealth. Combine with sector, country, stage, and employee filters to dial in your exact thesis.
Verified, not guessed
Every stealth record is cross-checked against multiple independent public signals before it is listed. If a claim cannot be corroborated, the field stays empty rather than fabricated.
Full company record
Name, sector, location, stage, founders, funding, and signals, the same structured row as the rest of the directory. Drop straight into your CRM, scoring model, or research workflow.
MCP-native
Query stealth companies in natural language from Claude, Cursor, or Windsurf via the Model Context Protocol. "Find stealth AI infra startups in the US founded in the last year."
Agent-payable over x402
Autonomous agents can discover, pay for, and query the API on their own through x402 micropayments, no account or human in the loop required.
Tier-gated access
Stealth-mode rows are reserved for Pro and above, so the signal stays valuable. Free and Pro Lite tiers cover the rest of the directory.
Who uses stealth discovery
The earliest signal, before the rest of the market has it.
Venture deal flow
See companies forming in your sector before they raise or launch. The earliest signal anywhere outside a private network.
Technical recruiting
Identify stealth teams hiring before they are on anyone else's radar. Reach founders while the roster is still small.
Competitive intelligence
Watch your category for new entrants emerging in stealth, so the first time you hear about a competitor is not their launch post.
AI agents
Wire stealth discovery into an autonomous research agent over MCP + x402. The agent finds, pays for, and reasons over the data on its own.
Frequently asked questions
Find stealth startups before anyone else
One API call. REST, MCP, and x402 pay-per-call. Stealth rows on Pro and above.
Get an API Key