Didit Email Verification

Didit Email Verification API

Overview

Two-step email verification via one-time code:

1. Send a verification code to an email address
2. Check the code the user provides

Key constraints:

• Code expires after 5 minutes
• Maximum 3 verification attempts per code (then must resend)
• Maximum 2 resend requests within 24 hours
• You must call Send before Check — Check returns "Expired or Not Found" otherwise

Capabilities: Detects breached emails (via known data breaches), disposable/temporary email providers, and undeliverable addresses. Supports fraud signals for risk scoring.

API Reference: Send Code | Check Code

Authentication

All requests require an API key via the x-api-key header.

How to obtain: Didit Business Console → API & Webhooks → Copy API key.

x-api-key: your_api_key_here

401 = API key missing or invalid. 403 = key lacks permissions or insufficient credits.

Step 1: Send Email Code

Sends a one-time verification code to the specified email address.

Request

POST https://verification.didit.me/v3/email/send/

Headers

Body (JSON)

Example

import requests

response = requests.post(
    "https://verification.didit.me/v3/email/send/",
    headers={"x-api-key": "YOUR_API_KEY", "Content-Type": "application/json"},
    json={
        "email": "user@example.com",
        "options": {"code_size": 6},
        "signals": {"ip": "203.0.113.42"},
        "vendor_data": "session-abc-123",
    },
)
print(response.status_code, response.json())

const response = await fetch("https://verification.didit.me/v3/email/send/", {
  method: "POST",
  headers: { "x-api-key": "YOUR_API_KEY", "Content-Type": "application/json" },
  body: JSON.stringify({
    email: "user@example.com",
    options: { code_size: 6 },
    signals: { ip: "203.0.113.42" },
  }),
});

Response (200 OK)

{
  "request_id": "e39cb057-92fc-4b59-b84e-02fec29a0f24",
  "status": "Success",
  "reason": null
}

Status Values & Handling

Error Responses

Step 2: Check Email Code

Verifies the code the user received. Must be called after a successful Send. Optionally auto-declines risky emails.

Request

POST https://verification.didit.me/v3/email/check/

Headers

Body (JSON)

Policy note: When an action is "DECLINE", verification is rejected even if the code is correct. The email.* fields are still populated so you can inspect why.

Example

response = requests.post(
    "https://verification.didit.me/v3/email/check/",
    headers={"x-api-key": "YOUR_API_KEY", "Content-Type": "application/json"},
    json={
        "email": "user@example.com",
        "code": "123456",
        "breached_email_action": "DECLINE",
        "disposable_email_action": "DECLINE",
    },
)

const response = await fetch("https://verification.didit.me/v3/email/check/", {
  method: "POST",
  headers: { "x-api-key": "YOUR_API_KEY", "Content-Type": "application/json" },
  body: JSON.stringify({
    email: "user@example.com",
    code: "123456",
    breached_email_action: "DECLINE",
    disposable_email_action: "DECLINE",
  }),
});

Response (200 OK)

{
  "request_id": "e39cb057-92fc-4b59-b84e-02fec29a0f24",
  "status": "Approved",
  "message": "The verification code is correct.",
  "email": {
    "status": "Approved",
    "email": "user@example.com",
    "is_breached": false,
    "breaches": [],
    "is_disposable": false,
    "is_undeliverable": false,
    "verification_attempts": 1,
    "verified_at": "2025-09-15T17:36:19.963451Z",
    "warnings": [],
    "lifecycle": [
      {"type": "EMAIL_VERIFICATION_MESSAGE_SENT", "timestamp": "...", "fee": 0.03},
      {"type": "VALID_CODE_ENTERED", "timestamp": "...", "fee": 0}
    ]
  },
  "created_at": "2025-09-15T17:36:19.703719+00:00"
}

Status Values & Handling

Error Responses

Response Field Reference

email Object

Warning Tags

Warning severity levels: error (critical), warning (requires attention), information (informational).

Common Workflows

Basic Email Verification

1. POST /v3/email/send/   → {"email": "user@example.com"}
2. Wait for user to provide the code
3. POST /v3/email/check/  → {"email": "user@example.com", "code": "123456"}
4. If "Approved"            → email is verified
   If "Failed"              → ask user to retry (up to 3 attempts)
   If "Expired or Not Found"→ go back to step 1

Strict Security Verification

1. POST /v3/email/send/   → include signals.ip, signals.device_id, signals.user_agent
2. Wait for user to provide the code
3. POST /v3/email/check/  → set all *_action fields to "DECLINE"
4. If "Approved"  → safe to proceed
   If "Declined" → check email.warnings for reason, block or warn user

Utility Scripts

verify_email.py: Send and check email verification codes from the command line.

# Requires: pip install requests
export DIDIT_API_KEY="your_api_key"

python scripts/verify_email.py send user@example.com
python scripts/verify_email.py check user@example.com 123456 --decline-breached --decline-disposable

Can also be imported as a library:

from scripts.verify_email import send_code, check_code

send_result = send_code("user@example.com")
check_result = check_code("user@example.com", "123456", decline_breached=True)