# Fiber AI People Search Count

> Fiber AI People Search Count is a paid API for AI agents from Fiber AI API at mpp.orthogonal.com, paid per call via MPP, $0.02/call, status unknown (last checked 2026-10-11).

Returns the count of people profiles matching a given set of search filters, without fetching the full result set.

## Facts

- Endpoint: POST https://mpp.orthogonal.com/fiber/v1/people-search/count?utm_source=zero.xyz
- Price: $0.02/call
- Payment: MPP
- Status: unknown
- Last checked: 2026-10-11
- 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-people-search-count-03e12a84
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_NOBruNbZ3kRj8oUno8yEV

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-people-search-count-03e12a84 -d '<json body>'
```

Example prompt: Before I pull the full list, can you check how many people on Fiber AI match my search — VP of Engineering at Series B US startups with 50 to 500 employees?

## When to prefer this

Use this endpoint before running a full Fiber AI people search to estimate result sizes, validate filter combinations, and avoid wasting money on searches that return too few or too many results. Prefer this over the full search endpoint when you only need the count, not the actual profiles.

## Known failure modes

- Invalid or unsupported filter fields return a 400 error
- Authentication failure returns 401 if API credentials are missing or invalid
- Overly broad filters may return very large counts that are less actionable
- Overly narrow filters return a count of 0 with no profiles matched
- Rate limiting or quota exhaustion may return a 429 error

## How this service works

Get count of profiles matching search filters. Use to estimate result sizes before running a full search.

## Output

A numeric count of how many people profiles in the Fiber AI database match the provided search filters, allowing the agent to estimate result volume before committing to a full paginated search.

## Example request

```json
{
 "filters": {
  "jobTitle": "VP of Engineering",
  "companySize": {
   "max": 500,
   "min": 50
  },
  "companyStage": "Series B",
  "companyLocation": "United States"
 }
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/fiber-ai-api-fiber-ai-people-search-count-03e12a84/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)