# Fiber AI Natural Language Combined Search (Sync)

> Fiber AI Natural Language Combined Search (Sync) is a paid API for AI agents from Fiber AI API at mpp.orthogonal.com, paid per call via MPP, $0.08/call, status unknown (last checked 2026-10-09).

Converts a free-form text query into search parameters and returns matching companies and profiles in a single synchronous response

## Facts

- Endpoint: POST https://mpp.orthogonal.com/fiber/v1/natural-language-search/combined/sync?utm_source=zero.xyz
- Price: $0.08/call
- Payment: MPP
- Status: unknown
- Last checked: 2026-10-09
- 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-natural-language-combined-search-sync-72613602
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_GrEwj6PcgGRbtffcG6w9N

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-natural-language-combined-search-sync-72613602 -d '<json body>'
```

Example prompt: Search Fiber AI for Series B SaaS companies in New York with 100-500 employees AND the software engineers who work there — give me both the companies and the profiles in one shot.

## When to prefer this

Use this endpoint when you need to search across both companies and profiles simultaneously using a single natural language query, and want results synchronously without polling. Prefer it over separate company or profile search endpoints when your use case requires both entity types together, saving you an extra API call and result-merging logic.

## Known failure modes

- Query too vague to parse into structured search params — returns empty or low-confidence results
- No matching companies or profiles found for the given query
- Rate limit exceeded — HTTP 429 response
- Invalid or malformed request body — HTTP 400 response
- Upstream data source unavailable — HTTP 500 response

## How this service works

Natural language search for both companies and profiles. Converts text query to search params and returns results. Fixed cost for param generation plus per-result charges.

## Output

A combined list of matching company records and people profiles derived from the natural language query, with contact and professional details for each result.

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/fiber-ai-api-fiber-ai-natural-language-combined-search-sync-72613602/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)