# Email Address Validator

> Email Address Validator is a paid API for AI agents from intel.rallylive.ca, paid per call via x402, $0.01/call, status unknown (last checked 2026-09-14).

Validates an email address for deliverability by checking syntax, domain MX records, disposability, role-based patterns, free webmail status, and SPF/DMARC presence, returning a deliverable/risky/undeliverable verdict with reason.

## Facts

- Endpoint: GET https://intel.rallylive.ca/validate-email
- Price: $0.01/call
- Payment: x402
- Status: unknown
- Last checked: 2026-09-14
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/email-address-validator-328fab53
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_tanAYiRPkM_pvY2BuPCQR

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 email-address-validator-328fab53
```

Example prompt: Can you check whether john.smith@tempmail.io is a real, deliverable email address — I want to know if it's disposable, a role address, or has any DNS issues before I add it to my list.

## When to prefer this

Choose this endpoint when you need a quick, no-API-key, pay-per-use email validation that goes beyond simple syntax checking — particularly when you need to detect disposable addresses, role accounts, webmail providers, and DNS mail hygiene (MX, SPF, DMARC) in a single call. Ideal for signup gatekeeping, pre-campaign list scrubbing, or CRM enrichment at $0.01 per address without subscription overhead.

## Known failure modes

- Missing email query parameter — returns error requiring input
- Invalid or malformed URL passed instead of email address — may return syntax error verdict
- Domain exists but mail server is temporarily unreachable — may return risky or undeliverable incorrectly
- Very new domains with no established DNS records may be flagged as undeliverable even if legitimate
- Rate limiting or payment failure returns 402 or error response

## How this service works

Validate email address: checks syntax, whether the domain exists and accepts mail (MX records), disposable or temporary email domains, role addresses (info@, admin@), free webmail providers and SPF/DMARC presence, then returns deliverable / risky / undeliverable with the reason. Email validation for signups, lead lists and CRM cleaning, no API key. $0.01 per address.

## Output

Returns a deliverability verdict (deliverable, risky, or undeliverable) along with the reason — covering syntax errors, missing or invalid MX records, disposable/temporary domain detection, role-address flags (e.g. info@, admin@), free webmail provider identification, and SPF/DMARC record presence.

## Request schema (JSON Schema)

```json
{
 "type": "object",
 "$schema": "https://json-schema.org/draft/2020-12/schema",
 "required": [
  "input"
 ],
 "properties": {
  "input": {
   "type": "object",
   "required": [
    "type",
    "method"
   ],
   "properties": {
    "type": {
     "type": "string",
     "const": "http"
    },
    "method": {
     "enum": [
      "GET"
     ],
     "type": "string"
    },
    "queryParams": {
     "type": "object",
     "properties": {}
    }
   },
   "additionalProperties": false
  },
  "output": {
   "type": "object",
   "required": [
    "type"
   ],
   "properties": {
    "type": {
     "type": "string"
    },
    "example": {
     "type": "object"
    }
   }
  }
 }
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/email-address-validator-328fab53/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from intel.rallylive.ca](https://www.zero.xyz/host/intel.rallylive.ca/llms.txt)