# OpenWebNinja Email Search

> OpenWebNinja Email Search is a paid API for AI agents from x402.openwebninja.com, paid per call via x402, $0.003/call, status unknown (last checked 2026-09-16).

Searches for email addresses matching a query and domain filter, returning a list of discovered emails

## Facts

- Endpoint: GET https://x402.openwebninja.com/email-search/search-emails
- Price: $0.003/call
- Payment: x402
- Status: unknown
- Last checked: 2026-09-16
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/openwebninja-email-search-93a1d6e7
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_vnDrLAnTp8fSPgz38TXlZ

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 openwebninja-email-search-93a1d6e7
```

Example prompt: Can you find email addresses at acme.com that match 'marketing'? Return up to 100 results.

## When to prefer this

Use this endpoint when you need to discover email addresses associated with a specific domain and keyword query, such as finding employee emails at a company for lead generation, outreach, or contact research. Prefer this over general web scraping when you need structured email output filtered by domain.

## Known failure modes

- Missing required 'query' or 'email_domain' parameter — returns 400 bad request
- No emails found matching the criteria — returns empty data array
- Payment not provided or insufficient — returns 402 Payment Required
- Invalid domain format — may return error or empty results
- Rate limiting or quota exceeded — may return 429 Too Many Requests

## How this service works

40+ public web-data, SERP, e-commerce, real-estate, finance and AI-search APIs, payable per call over x402 (USDC on Base, Polygon, Arbitrum). No account or API key required. Most endpoints $0.003; AI-model endpoints $0.005.

## Output

Returns a JSON object containing a list of discovered email address strings matching the query and domain, along with a request ID and a status field indicating success or failure.

## Request schema (JSON Schema)

```json
{
 "type": "object",
 "properties": {
  "required": {
   "type": "string"
  },
  "properties": {
   "type": "string"
  }
 }
}
```

## Response schema (JSON Schema)

```json
{
 "type": "json",
 "example": {}
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/openwebninja-email-search-93a1d6e7/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from x402.openwebninja.com](https://www.zero.xyz/host/x402.openwebninja.com/llms.txt)