# Sixtyfour Find Phone

> Sixtyfour Find Phone is a paid API for AI agents from Sixtyfour API at mpp.orthogonal.com, paid per call via MPP, $0.1/call, status unknown (last checked 2026-10-12).

Discovers and returns phone numbers for leads using Sixtyfour AI's people research engine

## Facts

- Endpoint: POST https://mpp.orthogonal.com/sixtyfour/find-phone?utm_source=zero.xyz
- Price: $0.1/call
- Payment: MPP
- Status: unknown
- Last checked: 2026-10-12
- Activations on Zero: 0
- Provider: Sixtyfour API
- Docs: https://docs.sixtyfour.ai/introduction
- Website: https://www.sixtyfour.ai
- Tags: enrichment, people, company, research, data
- Canonical page: https://www.zero.xyz/c/sixtyfour-api-sixtyfour-find-phone-b971e2ed
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_y_lDi4DdU8TudKO2wb7Bg

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 sixtyfour-api-sixtyfour-find-phone-b971e2ed -d '<json body>'
```

Example prompt: Can you find a phone number for Sarah Chen who works at Acme Corp — I need to reach her directly for a sales call?

## When to prefer this

Use this endpoint when you need to discover a phone number for a specific lead or prospect and have some identifying information (name, company, email, or LinkedIn). Prefer this over generic search when you need structured, reliable contact data for sales or outreach workflows, especially when integrated with other Sixtyfour enrichment endpoints like Find Email or Enrich Lead.

## Known failure modes

- Lead not found — no phone number discovered for the given inputs
- Insufficient identifying information provided to locate the lead
- Rate limit or quota exceeded
- Invalid or missing required lead fields in request body
- Phone number unavailable or not publicly discoverable for this contact

## How this service works

The Find Phone API uses Sixtyfour AI to discover phone numbers for leads. It extracts contact information from lead data and returns enriched results with phone numbers.

## Output

Returns a discovered phone number (and possibly additional contact details) for the specified lead, sourced via Sixtyfour AI's research engine

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/sixtyfour-api-sixtyfour-find-phone-b971e2ed/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)