# Fiber AI Domain Lookup Trigger

> Fiber AI Domain Lookup Trigger is a paid API for AI agents from Fiber AI API at mpp.orthogonal.com, paid per call via MPP, $0.06/call, status unknown (last checked 2026-10-10).

Triggers an async batch lookup of domains and websites for up to 400 companies by name

## Facts

- Endpoint: POST https://mpp.orthogonal.com/fiber/v1/domain-lookup/trigger?utm_source=zero.xyz
- Price: $0.06/call
- Payment: MPP
- Status: unknown
- Last checked: 2026-10-10
- 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-domain-lookup-trigger-9cffad4a
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_E2dvYj780mrE-iEw6FC4i

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-domain-lookup-trigger-9cffad4a -d '<json body>'
```

Example prompt: Look up the official website domains for these companies using Fiber AI: Stripe, Notion, Figma, Linear, and Vercel — kick off the async batch lookup now.

## When to prefer this

Use this endpoint when you have a list of up to 400 company names and need to resolve their official website domains in bulk. It is preferable over manual search when enriching CRM records, sales prospecting lists, or marketing databases with verified web presence data. Choose this over single-company lookup endpoints when batch efficiency is needed.

## Known failure modes

- Exceeds 400 company limit per request — returns validation error
- Company name is ambiguous or not found — that entry may return null or no domain
- Polling endpoint must be called separately; trigger itself does not return domains directly
- Authentication failure — missing or invalid API key returns 401
- Rate limiting if too many concurrent requests

## How this service works

Find domains and websites for a list of companies. Async: poll with /domain-lookup/polling. Max 400 companies per request.

## Output

Returns a job or polling token that the agent uses with the /domain-lookup/polling endpoint to retrieve a list of company-to-domain mappings once the async lookup completes. Each result maps a company name to its found website domain/URL.

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/fiber-ai-api-fiber-ai-domain-lookup-trigger-9cffad4a/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)