# Email Validate API

> Email Validate API is a paid API for AI agents from tools.ipintel.ai, paid per call via x402, $0.004/call, status unknown (last checked 2026-09-15).

Validates an email address by checking syntax, MX records, disposability, typos, and risk score to determine deliverability

## Facts

- Endpoint: POST https://tools.ipintel.ai/email-validate
- Price: $0.004/call
- Payment: x402
- Status: unknown
- Last checked: 2026-09-15
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/email-validate-api-bc2778c2
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_OtLqQWdMhQid1QLjeBB9s

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-validate-api-bc2778c2 -d '<json body>'
```

Example prompt: Can you validate the email address 'user@gmial.com' — I need to know if it's deliverable, whether the domain might be a typo, and what the risk score is before I add it to our list?

## When to prefer this

Choose this endpoint when you need a comprehensive, multi-signal email validation that goes beyond simple syntax checking — especially when typo correction, disposable domain detection, MX verification, and a risk score are all needed in a single call. Ideal for autonomous agents handling user signups, lead qualification, or pre-send list hygiene where a pay-per-call model is preferred over a subscription.

## Known failure modes

- Invalid or missing email input returns a validation error
- Network timeout when resolving MX records for obscure domains
- Very new domains may have incomplete MX data causing false negatives
- Payment failure via x402 protocol prevents call from completing
- Disposable domain lists may lag behind newly created throwaway providers

## How this service works

Pay-per-call x402 APIs for satellite observation, DNS lookup, domain health checks, reverse DNS, WHOIS lookup, domain availability checks, JSON Schema validation, JWT decoding, Base64 encoding/decoding, and HTTP latency checks. Designed for autonomous agents, developers, domain diagnostics, registration availability checks, API testing, structured output validation, token inspection, data transformation, uptime checks, and HTTP latency diagnostics.

## Output

Returns a JSON object with: syntax validity, MX record presence, disposable domain flag, role-based address flag, provider typo detection with suggested correction, normalized email, numeric risk score (0-100), risk reasons array, and a deliverability rating (e.g. 'risky', 'safe', 'invalid').

## 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",
    "bodyType",
    "body"
   ],
   "properties": {
    "body": {
     "type": "object",
     "required": [
      "email"
     ],
     "properties": {
      "email": {
       "type": "string",
       "description": "Email address to validate."
      }
     },
     "additionalProperties": false
    },
    "type": {
     "type": "string",
     "const": "http"
    },
    "method": {
     "enum": [
      "POST"
     ],
     "type": "string"
    },
    "bodyType": {
     "enum": [
      "json",
      "form-data",
      "text"
     ],
     "type": "string"
    }
   },
   "additionalProperties": false
  },
  "output": {
   "type": "object",
   "required": [
    "type"
   ],
   "properties": {
    "type": {
     "type": "string"
    },
    "example": {
     "type": "object",
     "properties": {
      "ok": {
       "type": "boolean"
      },
      "tool": {
       "type": "string"
      },
      "email": {
       "type": "string"
      },
      "checks": {
       "type": "object",
       "properties": {
        "free_provider": {
         "type": "boolean"
        },
        "provider_typo": {
         "type": "object",
         "properties": {
          "detected": {
           "type": "boolean"
          },
          "suggested_email": {
           "type": "string"
          },
          "suggested_domain": {
           "type": "string"
          }
         },
         "additionalProperties": true
        },
        "mx_records_found": {
         "type": "boolean"
        },
        "disposable_domain": {
         "type": "boolean"
        },
        "role_based_address": {
         "type": "boolean"
        }
       },
       "additionalProperties": true
      },
      "normalized": {
       "type": "string"
      },
      "risk_score": {
       "type": "integer"
      },
      "risk_reasons": {
       "type": "array",
       "items": {
        "type": "string"
       }
      },
      "syntax_valid": {
       "type": "boolean"
      },
      "deliverability": {
       "type": "string"
      }
     },
     "additionalProperties": true
    }
   }
  }
 }
}
```

## Response schema (JSON Schema)

```json
{
 "type": "json",
 "example": {
  "ok": true,
  "tool": "email-validate",
  "email": "test@gmial.com",
  "checks": {
   "free_provider": false,
   "provider_typo": {
    "detected": true,
    "suggested_email": "test@gmail.com",
    "suggested_domain": "gmail.com"
   },
   "mx_records_found": true,
   "disposable_domain": false,
   "role_based_address": false
  },
  "normalized": "test@gmial.com",
  "risk_score": 35,
  "risk_reasons": [
   "provider_typo_suspected"
  ],
  "syntax_valid": true,
  "deliverability": "risky"
 }
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/email-validate-api-bc2778c2/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from tools.ipintel.ai](https://www.zero.xyz/host/tools.ipintel.ai/llms.txt)