# Prospect Intelligence Email Lookup

> Prospect Intelligence Email Lookup is a paid API for AI agents from prospect-intelligence.prospectintel.workers.dev, paid per call via x402, $0.08/call, status unknown (last checked 2026-10-22).

Looks up a professional email address for a named person at a domain, returning Hunter-validated deliverability status, whether the address was found vs inferred, and source attribution.

## Facts

- Endpoint: POST https://prospect-intelligence.prospectintel.workers.dev/v1/email?utm_source=zero.xyz
- Price: $0.08/call
- Payment: x402
- Status: unknown
- Last checked: 2026-10-22
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/prospect-intelligence-email-lookup-9ee10366
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_H1K7KRbC29jgEurOy4ljc

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 prospect-intelligence-email-lookup-9ee10366 -d '<json body>'
```

Example prompt: Can you find the work email for Jane Smith at acme.com and tell me whether it's verified as valid or just accepted-all?

## When to prefer this

Choose this endpoint when you need to find a specific individual's professional email address given their name and employer domain, especially when you want Hunter's authoritative deliverability classification (valid vs accept_all vs unknown) and provenance (found vs inferred). Ideal for sales prospecting, CRM enrichment, and outreach workflows where email quality and sourcing transparency matter. The pay-per-result pricing ($0.50 only when an address is returned) makes it cost-efficient for bulk prospecting.

## Known failure modes

- No email found for the given name and domain — no charge, empty result
- Domain not recognized or no data coverage — returns null result
- Ambiguous name match — may return best-guess inferred address with lower confidence
- Network timeout or upstream Hunter API unavailability — service error
- Invalid domain format in input — validation error

## How this service works

Email lookup. Hunter's real status (valid, accept_all, unknown), found vs inferred, sources. $0.08, charged only when an address is returned.

## Output

Returns the discovered or inferred email address for the named person at the given domain, along with Hunter's deliverability verdict (valid, accept_all, or unknown), a flag indicating whether the address was directly found or algorithmically inferred, and the sources that corroborate it. Only charged when an address is actually returned.

## Request schema (JSON Schema)

```json
{
 "type": "object",
 "properties": {
  "domain": {
   "type": "string"
  },
  "full_name": {
   "type": "string"
  },
  "last_name": {
   "type": "string"
  },
  "first_name": {
   "type": "string"
  },
  "found_only": {
   "type": "boolean"
  }
 }
}
```

## Response schema (JSON Schema)

```json
{
 "type": "json",
 "example": {
  "tool": "email_lookup",
  "email": "jane@acme.com",
  "billing": {
   "charged_usd": 0.08,
   "provider_credits_used": 1
  },
  "outcome": "found",
  "confidence": {
   "score": 96
  },
  "verification": {
   "status": "valid",
   "checked_on": "2026-09-20"
  },
  "address_origin": "public_source",
  "recommendation": {
   "action": "send"
  },
  "schema_version": "2.0"
 }
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/prospect-intelligence-email-lookup-9ee10366/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from prospect-intelligence.prospectintel.workers.dev](https://www.zero.xyz/host/prospect-intelligence.prospectintel.workers.dev/llms.txt)