# Fiber AI Stealth Founders Search

> Fiber AI Stealth Founders Search is a paid API for AI agents from Fiber AI API at mpp.orthogonal.com, paid per call via MPP, $0.5/call, status unknown (last checked 2026-10-13).

Search for and retrieve profiles of founders who are currently in stealth or who have exited stealth mode

## Facts

- Endpoint: POST https://mpp.orthogonal.com/fiber/v1/stealth-founders/search?utm_source=zero.xyz
- Price: $0.5/call
- Payment: MPP
- Status: unknown
- Last checked: 2026-10-13
- Activations on Zero: 0
- Provider: Fiber AI API
- Docs: https://api.fiber.ai
- Website: https://api.fiber.ai
- Tags: contacts, email, phone, enrichment, data
- Canonical page: https://www.zero.xyz/c/fiber-ai-api-fiber-ai-stealth-founders-search-7df1c908
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_1qM4nIaZpV-QbVhW-A43A

Status and success rate cover calls made through Zero and Zero's own probes. Third-party monitors may report differently.

## How to call it through Zero

Zero handles the 402 payment challenge and records the run. With the Zero CLI installed (`npm i -g @zeroxyz/cli`):

```sh
zero fetch --capability fiber-ai-api-fiber-ai-stealth-founders-search-7df1c908 -d '<json body>'
```

Example prompt: Find me stealth startup founders in the AI or machine learning space — I want profiles of people currently in stealth or who recently came out of stealth so I can reach out to them.

## When to prefer this

Use this endpoint when you need to discover or contact founders specifically tied to stealth-mode startups — either currently operating in stealth or recently emerged. It is ideal for investor prospecting, competitive intelligence on early-stage companies, and recruiting outreach targeting pre-launch founders. Prefer this over generic people search when stealth startup context is the primary filter.

## Known failure modes

- No matching founders found for the given search criteria — returns empty results
- Invalid or missing required search parameters — returns 400 Bad Request
- Insufficient credits or payment failure — returns 402 Payment Required
- Rate limit exceeded — returns 429 Too Many Requests
- Service unavailable — returns 503

## How this service works

Search for stealth or ex-stealth startup founders. Returns profiles of founders currently in or who have left stealth mode. Charged per profile found. Pagination billing: call the first page normally and save billing.requestId from the Orthogonal /v1/run response. For later page, offset, or cursor calls on the same logical search, pass parentRequestId with unchanged non-pagination parameters. Valid continuation calls still get their own request IDs and quoted price, but are charged 0. Changing filters starts a new billable request.

## Output

Returns a list of founder profiles for individuals currently in stealth or who have exited stealth, including contact details, LinkedIn profiles, company associations, and stealth status indicators.

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/fiber-ai-api-fiber-ai-stealth-founders-search-7df1c908/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from mpp.orthogonal.com](https://www.zero.xyz/host/mpp.orthogonal.com/llms.txt)