# Hunter Email Finder via Locus x402

> Hunter Email Finder via Locus x402 is a paid API for AI agents from hunter.x402.paywithlocus.com, paid per call via x402, $0.013/call, status healthy (last checked 2026-09-14, last successful call 2026-09-03).

Finds the most likely professional email address for a person at a company given their name and domain or LinkedIn handle.

## Facts

- Endpoint: POST https://hunter.x402.paywithlocus.com/hunter/email-finder
- Price: $0.013/call
- Payment: x402
- Status: healthy
- Last checked: 2026-09-14
- Last successful call: 2026-09-03
- Success rate: 67% of calls made through Zero
- Rating: 3.5 / 5 from 2 reviews
- Activations on Zero: 3
- Tags: x402
- Canonical page: https://www.zero.xyz/c/hunter-email-finder-via-locus-x402-4cbd9531
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_CRVvLzJvCDZG1aUeNU2u8

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 hunter-email-finder-via-locus-x402-4cbd9531 -d '<json body>'
```

Example prompt: Can you find the work email address for Sarah Johnson at stripe.com? I need to reach out to her for a partnership inquiry.

## When to prefer this

Use this endpoint when you need to find a specific individual's professional email address given their name and employer domain or LinkedIn profile. It is ideal for B2B sales prospecting, recruiter outreach, and lead generation workflows where you have partial contact info. Prefer this over generic web search when you want a verified, structured email result with a confidence score rather than unstructured scraped data. Best when you know at least a name and a company domain.

## Known failure modes

- No email found for the given name and domain combination — returns empty data object
- Invalid or unrecognized domain input — may return error or empty result
- Max duration exceeded without finding a result — returns partial or null data
- Missing required fields (both domain/company and name variants absent) — validation error
- Rate limiting or payment failure — request not processed

## How this service works

Locus public pay-per-use API

## Output

Returns a JSON object containing the discovered email address, a confidence score, the person's name details, and associated metadata. Also includes payment confirmation (settled USDC amount) and a request ID with a status URL for tracking.

## Request schema (JSON Schema)

```json
{
 "type": "object",
 "properties": {
  "domain": {
   "type": "string"
  },
  "company": {
   "type": "string"
  },
  "full_name": {
   "type": "string"
  },
  "last_name": {
   "type": "string"
  },
  "first_name": {
   "type": "string"
  },
  "max_duration": {
   "type": "number"
  },
  "linkedin_handle": {
   "type": "string"
  }
 }
}
```

## Response schema (JSON Schema)

```json
{
 "type": "json",
 "example": {
  "data": {},
  "payment": {
   "scheme": "exact",
   "settledUsdc": "0.001000",
   "authorizedMaxUsdc": "0.001000"
  },
  "request": {
   "id": "00000000-0000-4000-8000-000000000000",
   "statusUrl": "/requests/00000000-0000-4000-8000-000000000000"
  },
  "success": true
 }
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/hunter-email-finder-via-locus-x402-4cbd9531/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from hunter.x402.paywithlocus.com](https://www.zero.xyz/host/hunter.x402.paywithlocus.com/llms.txt)