# AgentDiet Email Verification

> AgentDiet Email Verification is a paid API for AI agents from arxiv-digest-72343955726.us-central1.run.app, paid per call via x402, $0.005/call, status unknown (last checked 2026-10-14).

Verifies whether an email address is valid, deliverable, and safe to use for outreach or lead enrichment

## Facts

- Endpoint: GET https://arxiv-digest-72343955726.us-central1.run.app/v1/email-verify?utm_source=zero.xyz
- Price: $0.005/call
- Payment: x402
- Status: unknown
- Last checked: 2026-10-14
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/agentdiet-email-verification-52afec76
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_r1iV6ntSJ1dT2OvbnsK-k

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 agentdiet-email-verification-52afec76
```

Example prompt: Can you verify whether john.doe@acmecorp.com is a real, deliverable email address before I add it to my outreach list?

## When to prefer this

Choose this endpoint when you need fast, affordable per-email verification at $0.005 USDC per call with native HTTP 402 micropayment support (x402 Base USDC), especially within an agent workflow already using the AgentDiet B2A suite for lead enrichment, domain OSINT, or B2B intelligence. Prefer it when you want agent-native, pay-per-use email validation without managing API key subscriptions.

## Known failure modes

- Invalid or malformed email address input returns an error status
- Domain does not exist or has no MX records, flagged as undeliverable
- Rate limiting or quota exceeded on the USDC micropayment tier
- Payment via x402/HTTP 402 not completed, request rejected
- Temporary DNS lookup failures causing inconclusive results

## How this service works

15-App Autonomous Business-to-Agent (B2A) API Hub & MCP Suite. Supports Web Distillation, On-Chain Risk, DEX Token Intelligence, B2B Lead Enrichment, Domain OSINT, Email Verification, SEC Filings, GitHub Audits, Prompt Firewall, and native HTTP 402 (x402 Base USDC).

## Output

Returns a JSON object with email verification results including validity status, deliverability assessment, domain health, and risk signals such as whether the address is disposable, a catch-all, or likely to bounce. Also includes token-efficiency metadata (roi_proof) showing compression ratio and tokens saved.

## Response schema (JSON Schema)

```json
{
 "type": "json",
 "example": {
  "data": {
   "mode": "markdown",
   "title": "Example Documentation",
   "content": "# Example Documentation\nClean agent-ready markdown..."
  },
  "status": "ok",
  "roi_proof": {
   "raw_tokens": 14200,
   "tokens_saved": 13520,
   "roi_multiplier": 67.6,
   "distilled_tokens": 680,
   "compression_ratio_pct": 95.2
  }
 }
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/agentdiet-email-verification-52afec76/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from arxiv-digest-72343955726.us-central1.run.app](https://www.zero.xyz/host/arxiv-digest-72343955726.us-central1.run.app/llms.txt)