Skip to content Skip to navigation Skip to topbar

On this page

Verifications

The Twilio Verify REST API allows you to verify that a user has a claimed device, phone number, or email address in their possession. The API lets you start a new verification for a user, and then check that the verification was successful.

Prerequisites:

Create a Verification Service
If you are using a Twilio Trial Account, you need to verify any non-Twilio phone numbers you wish to send SMS, Voice, or WhatsApp OTP messages.

Verification Response Properties

These fields are returned in the output JSON response. The type SID<VE> is a unique ID starting with the letters VE.

Property nameTypeRequiredDescriptionChild properties

sidSID<VE>Optional

Not PII

The unique string that we created to identify the Verification resource.

Pattern: ^VE[0-9a-fA-F]{32}$Min length: 34Max length: 34

service_sidSID<VA>Optional

Not PII

The SID of the Service the resource is associated with.

Pattern: ^VA[0-9a-fA-F]{32}$Min length: 34Max length: 34

account_sidSID<AC>Optional

Not PII

The SID of the Account that created the Verification resource.

Pattern: ^AC[0-9a-fA-F]{32}$Min length: 34Max length: 34

tostringOptional

PII MTL: 30 days

The phone number or email being verified. Phone numbers must be in E.164 format.

channelenum<string>Optional

Not PII

The verification method used. One of: email, sms, whatsapp, call, sna, or rcs.

Possible values:

smscallemailwhatsappsna

statusstringOptional

Not PII

The status of the verification. Can be: pending, approved, canceled, max_attempts_reached, deleted, failed or expired.

validbooleanOptional

Not PII

Use "status" instead. Legacy property indicating whether the verification was successful.

lookupobjectOptional

Not PII

Information about the phone number being verified.

amountstringOptional

PII MTL: 1 days

The amount of the associated PSD2 compliant transaction. Requires the PSD2 Service flag enabled.

payeestringOptional

PII MTL: 1 days

The payee of the associated PSD2 compliant transaction. Requires the PSD2 Service flag enabled.

send_code_attemptsarrayOptional

Not PII

An array of verification attempt objects containing the channel attempted and the channel-specific transaction SID.

date_createdstring<date-time>Optional

Not PII

The date and time in GMT when the resource was created specified in RFC 2822 format.

date_updatedstring<date-time>Optional

Not PII

The date and time in GMT when the resource was last updated specified in RFC 2822 format.

snaobjectOptional

Not PII

The set of fields used for a silent network auth (sna) verification. Contains a single field with the URL to be invoked to verify the phone number.

urlstring<uri>Optional

Not PII

The absolute URL of the Verification resource.

Start New Verification

POST https://verify.twilio.com/v2/Services/{ServiceSid}/Verifications

To verify a user's phone number or email, start by requesting to send a verification code to their device, or use the Silent Network Auth channel to perform the verification without sending a code.

These are the available input parameters for starting a verification. The type SID<VE> is a unique ID starting with the letters VE.

Phone numbers must be in E.164 format. Learn more about how to turn phone number input into E.164 format.

Path parameters

Property nameTypeRequiredPIIDescription

ServiceSidSID<VA>required

Not PII

The SID of the verification Service to create the resource under.

Pattern: ^VA[0-9a-fA-F]{32}$Min length: 34Max length: 34

Request body parameters

Encoding type:application/x-www-form-urlencoded

SchemaExample

Property nameTypeRequiredDescriptionChild properties

Tostringrequired

PII MTL: 30 days

The phone number or email to verify. Phone numbers must be in E.164 format.

Channelstringrequired

Not PII

The verification method to use. One of: email, sms, whatsapp, call, sna or auto.

CustomFriendlyNamestringOptional

Not PII

A custom user defined friendly name that overwrites the existing one in the verification message

CustomMessagestringOptional

Not PII

The text of a custom message to use for the verification.

SendDigitsstringOptional

Not PII

The digits to send after a phone call is answered, for example, to dial an extension. For more information, see the Programmable Voice documentation of sendDigits.

LocalestringOptional

Not PII

Locale will automatically resolve based on phone number country code for SMS, WhatsApp, and call channel verifications. It will fallback to English or the template’s default translation if the selected translation is not available. This parameter will override the automatic locale resolution. See supported languages and more information here.

CustomCodestringOptional

Not PII

A pre-generated code to use for verification. The code can be between 4 and 10 characters, inclusive.

AmountstringOptional

PII MTL: 1 days

The amount of the associated PSD2 compliant transaction. Requires the PSD2 Service flag enabled.

PayeestringOptional

PII MTL: 1 days

The payee of the associated PSD2 compliant transaction. Requires the PSD2 Service flag enabled.

RateLimitsobjectOptional

Not PII

The custom key-value pairs of Programmable Rate Limits. Keys correspond to unique_name fields defined when creating your Rate Limit. Associated value pairs represent values in the request that you are rate limiting on. You may include multiple Rate Limit values in each request.

ChannelConfigurationobjectOptional

Not PII

email channel configuration in json format. The fields 'from' and 'from_name' are optional but if included the 'from' field must have a valid email address.

AppHashstringOptional

Not PII

Your App Hash to be appended at the end of your verification SMS body. Applies only to SMS. Example SMS body: <#> Your AppName verification code is: 1234 He42w354ol9.

TemplateSidSID<HJ>Optional

Not PII

The message template. If provided, will override the default template for the Service. SMS and Voice channels only.

Pattern: ^HJ[0-9a-fA-F]{32}$Min length: 34Max length: 34

TemplateCustomSubstitutionsstringOptional

Not PII

A stringified JSON object in which the keys are the template's special variables and the values are the variables substitutions.

DeviceIpstringOptional

Not PII

Strongly encouraged if using the auto channel. The IP address of the client's device. If provided, it has to be a valid IPv4 or IPv6 address.

EnableSnaClientTokenbooleanOptional

Not PII

An optional Boolean value to indicate the requirement of sna client token in the SNA URL invocation response for added security. This token must match in the Verification Check request to confirm phone number verification.

RiskCheckenum<string>Optional

Not PII

Risk_check overrides Fraud Prevention measures like Fraud Guard, Geo Permissions etc per verification attempt basis, allowing Verify to block traffic considered fraudulent if enabled or bypass active protections if disabled. Can be: enable(default) or disable. For SMS channel only.

Possible values:

enabledisable

TagsstringOptional

Not PII

A string containing a JSON map of key value pairs of tags to be recorded as metadata for the message. The object may contain up to 10 tags. Keys and values can each be up to 128 characters in length.

Start a Verification with SMS

1// Download the helper library from https://www.twilio.com/docs/node/install
2const twilio = require("twilio"); // Or, for ESM: import twilio from "twilio";
3
4// Find your Account SID and Auth Token at twilio.com/console
5// and set the environment variables. See http://twil.io/secure
6const accountSid = process.env.TWILIO_ACCOUNT_SID;
7const authToken = process.env.TWILIO_AUTH_TOKEN;
8const client = twilio(accountSid, authToken);
9
10async function createVerification() {
11  const verification = await client.verify.v2
12    .services("VAaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa")
13    .verifications.create({
14      channel: "sms",
15      to: "+15017122661",
16    });
17
18  console.log(verification.sid);
19}
20
21createVerification();

Output

1{
2  "sid": "VEaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa",
3  "service_sid": "VAaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa",
4  "account_sid": "ACaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa",
5  "to": "+15017122661",
6  "channel": "sms",
7  "status": "pending",
8  "valid": false,
9  "date_created": "2015-07-30T20:00:00Z",
10  "date_updated": "2015-07-30T20:00:00Z",
11  "lookup": {},
12  "amount": null,
13  "payee": null,
14  "send_code_attempts": [
15    {
16      "time": "2015-07-30T20:00:00Z",
17      "channel": "SMS",
18      "attempt_sid": "VLaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa"
19    }
20  ],
21  "sna": null,
22  "url": "https://verify.twilio.com/v2/Services/VAaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa/Verifications/VEaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa"
23}

Start a Verification with WhatsApp

1// Download the helper library from https://www.twilio.com/docs/node/install
2const twilio = require("twilio"); // Or, for ESM: import twilio from "twilio";
3
4// Find your Account SID and Auth Token at twilio.com/console
5// and set the environment variables. See http://twil.io/secure
6const accountSid = process.env.TWILIO_ACCOUNT_SID;
7const authToken = process.env.TWILIO_AUTH_TOKEN;
8const client = twilio(accountSid, authToken);
9
10async function createVerification() {
11  const verification = await client.verify.v2
12    .services("VAaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa")
13    .verifications.create({
14      channel: "whatsapp",
15      to: "+15017122661",
16    });
17
18  console.log(verification.accountSid);
19}
20
21createVerification();

Output

1{
2  "sid": "VEaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa",
3  "service_sid": "VAaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa",
4  "account_sid": "ACaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa",
5  "to": "+15017122661",
6  "channel": "whatsapp",
7  "status": "pending",
8  "valid": false,
9  "date_created": "2015-07-30T20:00:00Z",
10  "date_updated": "2015-07-30T20:00:00Z",
11  "lookup": {},
12  "amount": null,
13  "payee": null,
14  "send_code_attempts": [
15    {
16      "time": "2015-07-30T20:00:00Z",
17      "channel": "whatsapp",
18      "attempt_sid": "VLaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa"
19    }
20  ],
21  "sna": null,
22  "url": "https://verify.twilio.com/v2/Services/VAaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa/Verifications/VEaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa"
23}

Start a Verification with Voice

1// Download the helper library from https://www.twilio.com/docs/node/install
2const twilio = require("twilio"); // Or, for ESM: import twilio from "twilio";
3
4// Find your Account SID and Auth Token at twilio.com/console
5// and set the environment variables. See http://twil.io/secure
6const accountSid = process.env.TWILIO_ACCOUNT_SID;
7const authToken = process.env.TWILIO_AUTH_TOKEN;
8const client = twilio(accountSid, authToken);
9
10async function createVerification() {
11  const verification = await client.verify.v2
12    .services("VAaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa")
13    .verifications.create({
14      channel: "call",
15      to: "+15017122661",
16    });
17
18  console.log(verification.sid);
19}
20
21createVerification();

Output

1{
2  "sid": "VEaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa",
3  "service_sid": "VAaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa",
4  "account_sid": "ACaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa",
5  "to": "+15017122661",
6  "channel": "call",
7  "status": "pending",
8  "valid": false,
9  "date_created": "2015-07-30T20:00:00Z",
10  "date_updated": "2015-07-30T20:00:00Z",
11  "lookup": {},
12  "amount": null,
13  "payee": null,
14  "send_code_attempts": [
15    {
16      "time": "2015-07-30T20:00:00Z",
17      "channel": "SMS",
18      "attempt_sid": "VLaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa"
19    }
20  ],
21  "sna": null,
22  "url": "https://verify.twilio.com/v2/Services/VAaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa/Verifications/VEaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa"
23}

Start a Verification with Voice to an extension

1// Download the helper library from https://www.twilio.com/docs/node/install
2const twilio = require("twilio"); // Or, for ESM: import twilio from "twilio";
3
4// Find your Account SID and Auth Token at twilio.com/console
5// and set the environment variables. See http://twil.io/secure
6const accountSid = process.env.TWILIO_ACCOUNT_SID;
7const authToken = process.env.TWILIO_AUTH_TOKEN;
8const client = twilio(accountSid, authToken);
9
10async function createVerification() {
11  const verification = await client.verify.v2
12    .services("VAaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa")
13    .verifications.create({
14      channel: "call",
15      sendDigits: "350",
16      to: "+15017122661",
17    });
18
19  console.log(verification.sid);
20}
21
22createVerification();

Output

1{
2  "sid": "VEaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa",
3  "service_sid": "VAaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa",
4  "account_sid": "ACaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa",
5  "to": "+15017122661",
6  "channel": "call",
7  "status": "pending",
8  "valid": false,
9  "date_created": "2015-07-30T20:00:00Z",
10  "date_updated": "2015-07-30T20:00:00Z",
11  "lookup": {},
12  "amount": null,
13  "payee": null,
14  "send_code_attempts": [
15    {
16      "time": "2015-07-30T20:00:00Z",
17      "channel": "SMS",
18      "attempt_sid": "VLaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa"
19    }
20  ],
21  "sna": null,
22  "url": "https://verify.twilio.com/v2/Services/VAaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa/Verifications/VEaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa"
23}

Start New Verification With Silent Network Auth

(information)

Info

Verify Silent Network Auth (SNA) is currently in the beta release stage, talk to an expert to request access to this feature.

Silent Network Auth (SNA) is a secure verification channel that verifies user possession of a mobile number without explicit user intervention by using its built-in connectivity to the mobile network operator (carrier). In the background, Twilio verifies the phone number by confirming directly from the carrier that the number corresponds to the SIM card located in the device requesting the authentication. This all happens without one-time password prompts or visible redirects for the end-user.

See Verify Silent Network Auth Overview for more information on this exciting feature.

It takes three steps to use SNA:

Start a new Verification with the sna channel using Verifications API.
Send POST request to response property sna.url from client device that is connected to a mobile network.
Check that the Verification was successful using Verification Check API.

To begin, use the Start New Verification endpoint with the parameter channel=sna.

Start a Verification With Silent Network Auth

1// Download the helper library from https://www.twilio.com/docs/node/install
2const twilio = require("twilio"); // Or, for ESM: import twilio from "twilio";
3
4// Find your Account SID and Auth Token at twilio.com/console
5// and set the environment variables. See http://twil.io/secure
6const accountSid = process.env.TWILIO_ACCOUNT_SID;
7const authToken = process.env.TWILIO_AUTH_TOKEN;
8const client = twilio(accountSid, authToken);
9
10async function createVerification() {
11  const verification = await client.verify.v2
12    .services("VAaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa")
13    .verifications.create({
14      channel: "sna",
15      to: "+15017122661",
16    });
17
18  console.log(verification.sid);
19}
20
21createVerification();

Output

1{
2  "sid": "VEaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa",
3  "service_sid": "VAaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa",
4  "account_sid": "ACaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa",
5  "to": "+15017122661",
6  "channel": "sna",
7  "status": "pending",
8  "valid": false,
9  "date_created": "2015-07-30T20:00:00Z",
10  "date_updated": "2015-07-30T20:00:00Z",
11  "lookup": {
12    "carrier": {
13      "mobile_country_code": "311",
14      "type": "mobile",
15      "error_code": null,
16      "mobile_network_code": "180",
17      "name": "T-Mobile USA, Inc."
18    }
19  },
20  "amount": null,
21  "payee": null,
22  "send_code_attempts": [
23    {
24      "time": "2015-07-30T20:00:00Z",
25      "channel": "sna",
26      "attempt_sid": "VLaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa"
27    }
28  ],
29  "sna": {
30    "url": "https://mi.dnlsrv.com/m/id/ANBByzx7?data=AAAglRRdNn02iTFWfDWwdTjOzM8o%2F6JB86fH%2Bt%2FFftUPj0pFA0u8%2FibWuYwzmMeMOtdTwYlsO8V%2FXF%2BJmngMhbeGKYhHeTOF2H9VrGEYKcEEklPxHgb5GgL3XtYa33j3lIU%2By6InvoV%2FowWHBzA0QeFPBh6vmJ8LoUPJqGE7q0PRz618Z4ym1AGq%2BaomSq9PlP4rCduv9Cmtxu%2FrvPSBwocs0GCWDE8seK8t9epmPQW7gwODxkAiKr9UxhJd9KvmBVuAQPf%2BoFQVo86USXkhXqTvUzB2bNUYY9FCy3CWgZFTOa1D3H1CVxf1eHzYIswNA7SmOzP%2FBX8g6%2B0hkzwMRkcit3gBNs4evAVJiqAgYvUlrtGwwv9bFx4X7jWSHY4%3D&cipherSalt=yANeDq09bwM38SJs"
31  },
32  "url": "https://verify.twilio.com/v2/Services/VAaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa/Verifications/VEaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa"
33}

Send POST request to response property sna.url

Check your response from the Start New Verification endpoint for the sna.url property:

1"sna": {
2     "url": "https://mi.dnlsrv.com/m/id/ANBByzx7?data=AAAglRRdNn02iTFWfDWwdTjOzM8o%2F6JB86fH%2Bt%2FFftUPj0pFA0u8%2FibWuYwzmMeMOtdTwYlsO8V%2FXF%2BJmngMhbeGKYhHeTOF2H9VrGEYKcEEklPxHgb5GgL3XtYa33j3lIU%2By6InvoV%2FowWHBzA0QeFPBh6vmJ8LoUPJqGE7q0PRz618Z4ym1AGq%2BaomSq9PlP4rCduv9Cmtxu%2FrvPSBwocs0GCWDE8seK8t9epmPQW7gwODxkAiKr9UxhJd9KvmBVuAQPf%2BoFQVo86USXkhXqTvUzB2bNUYY9FCy3CWgZFTOa1D3H1CVxf1eHzYIswNA7SmOzP%2FBX8g6%2B0hkzwMRkcit3gBNs4evAVJiqAgYvUlrtGwwv9bFx4X7jWSHY4%3D&cipherSalt=yANeDq09bwM38SJs"
3}

Then do an HTTP POST request to sna.url over the end user's mobile network to continue the authentication process. Note that sna.url is unique for every Verification Attempt, has a defined time-to-live of 10 minutes, and can only be processed once.

curl -X POST https://mi.dnlsrv.com/m/id/ANBByzx7?data=AAAglRRdNn02iTFWfDWwdTjOzM8o%2F6JB86fH%2Bt%2FFftUPj0pFA0u8%2FibWuYwzmMeMOtdTwYlsO8V%2FXF%2BJmngMhbeGKYhHeTOF2H9VrGEYKcEEklPxHgb5GgL3XtYa33j3lIU%2By6InvoV%2FowWHBzA0QeFPBh6vmJ8LoUPJqGE7q0PRz618Z4ym1AGq%2BaomSq9PlP4rCduv9Cmtxu%2FrvPSBwocs0GCWDE8seK8t9epmPQW7gwODxkAiKr9UxhJd9KvmBVuAQPf%2BoFQVo86USXkhXqTvUzB2bNUYY9FCy3CWgZFTOa1D3H1CVxf1eHzYIswNA7SmOzP%2FBX8g6%2B0hkzwMRkcit3gBNs4evAVJiqAgYvUlrtGwwv9bFx4X7jWSHY4%3D&cipherSalt=yANeDq09bwM38SJs

This POST request will prompt multiple redirects behind the scenes, including contacting the carrier to confirm phone number ownership. You can expect to receive a 200 response from this request in under four seconds.

Next, use Verification Check API to confirm that the POST request and Verification Attempt was successful.

Start New Verification With Automatic Channel Selection

(information)

Info

Verify Automatic Channel Selection is currently in the Pilot maturity stage, please contact sales to request access to this feature.

Automatic Channel Selection is a verification channel that attempts to verify with Silent Network Auth (SNA) and uses SMS as a fallback if needed. Read more about Automatic Channel Selection here.

Take the following steps to use Automatic Channel Selection:

Start a new Verification with the auto channel using Verifications API, including the optional parameter device_ip.
Check the response for the channel property to see if sna or sms was used.
- If sna was used: Continue following the SNA Verification process, see Send POST request to response property sna.url for instructions.
- If sms was used: No further actions required, skip to step 3.
Check that the Verification was successful using Verification Check API.

Start a Verification With Automatic Channel Detection

1// Download the helper library from https://www.twilio.com/docs/node/install
2const twilio = require("twilio"); // Or, for ESM: import twilio from "twilio";
3
4// Find your Account SID and Auth Token at twilio.com/console
5// and set the environment variables. See http://twil.io/secure
6const accountSid = process.env.TWILIO_ACCOUNT_SID;
7const authToken = process.env.TWILIO_AUTH_TOKEN;
8const client = twilio(accountSid, authToken);
9
10async function createVerification() {
11  const verification = await client.verify.v2
12    .services("VAaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa")
13    .verifications.create({
14      channel: "auto",
15      deviceIp: "0.000.00.000",
16      to: "+15017122661",
17    });
18
19  console.log(verification.sid);
20}
21
22createVerification();

Output

1{
2  "sid": "VEaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa",
3  "service_sid": "VAaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa",
4  "account_sid": "ACaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa",
5  "to": "+15017122661",
6  "channel": "auto",
7  "status": "pending",
8  "valid": false,
9  "date_created": "2015-07-30T20:00:00Z",
10  "date_updated": "2015-07-30T20:00:00Z",
11  "lookup": {
12    "carrier": {
13      "mobile_country_code": "311",
14      "type": "mobile",
15      "error_code": null,
16      "mobile_network_code": "180",
17      "name": "T-Mobile USA, Inc."
18    }
19  },
20  "amount": null,
21  "payee": null,
22  "send_code_attempts": [
23    {
24      "time": "2015-07-30T20:00:00Z",
25      "channel": "sna",
26      "attempt_sid": "VLaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa"
27    }
28  ],
29  "sna": {
30    "url": "https://mi.dnlsrv.com/m/id/ANBByzx7?data=AAAglRRdNn02iTFWfDWwdTjOzM8o%2F6JB86fH%2Bt%2FFftUPj0pFA0u8%2FibWuYwzmMeMOtdTwYlsO8V%2FXF%2BJmngMhbeGKYhHeTOF2H9VrGEYKcEEklPxHgb5GgL3XtYa33j3lIU%2By6InvoV%2FowWHBzA0QeFPBh6vmJ8LoUPJqGE7q0PRz618Z4ym1AGq%2BaomSq9PlP4rCduv9Cmtxu%2FrvPSBwocs0GCWDE8seK8t9epmPQW7gwODxkAiKr9UxhJd9KvmBVuAQPf%2BoFQVo86USXkhXqTvUzB2bNUYY9FCy3CWgZFTOa1D3H1CVxf1eHzYIswNA7SmOzP%2FBX8g6%2B0hkzwMRkcit3gBNs4evAVJiqAgYvUlrtGwwv9bFx4X7jWSHY4%3D&cipherSalt=yANeDq09bwM38SJs"
31  },
32  "url": "https://verify.twilio.com/v2/Services/VAaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa/Verifications/VEaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa"
33}

Start New Verification With a Predefined Template

The message body of an SMS or Voice Verification can be overridden by using a template. To do so, the template SID<HJ> must be sent as a parameter in the Start Verification request.
The template SID<HJ> is a unique ID starting with the letters HJ. A complete list of the available templates for the account can be obtained by querying the Templates API.

Start a Verification using a template

1// Download the helper library from https://www.twilio.com/docs/node/install
2const twilio = require("twilio"); // Or, for ESM: import twilio from "twilio";
3
4// Find your Account SID and Auth Token at twilio.com/console
5// and set the environment variables. See http://twil.io/secure
6const accountSid = process.env.TWILIO_ACCOUNT_SID;
7const authToken = process.env.TWILIO_AUTH_TOKEN;
8const client = twilio(accountSid, authToken);
9
10async function createVerification() {
11  const verification = await client.verify.v2
12    .services("VAaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa")
13    .verifications.create({
14      channel: "sms",
15      templateSid: "HJXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX",
16      to: "+15017122661",
17    });
18
19  console.log(verification.status);
20}
21
22createVerification();

Output

1{
2  "sid": "VEaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa",
3  "service_sid": "VAaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa",
4  "account_sid": "ACaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa",
5  "to": "+15017122661",
6  "channel": "sms",
7  "status": "pending",
8  "valid": false,
9  "date_created": "2015-07-30T20:00:00Z",
10  "date_updated": "2015-07-30T20:00:00Z",
11  "lookup": {},
12  "amount": null,
13  "payee": null,
14  "send_code_attempts": [
15    {
16      "time": "2015-07-30T20:00:00Z",
17      "channel": "SMS",
18      "attempt_sid": "VLaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa"
19    }
20  ],
21  "sna": null,
22  "url": "https://verify.twilio.com/v2/Services/VAaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa/Verifications/VEaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa"
23}

Start a Verification with Email

1// Download the helper library from https://www.twilio.com/docs/node/install
2const twilio = require("twilio"); // Or, for ESM: import twilio from "twilio";
3
4// Find your Account SID and Auth Token at twilio.com/console
5// and set the environment variables. See http://twil.io/secure
6const accountSid = process.env.TWILIO_ACCOUNT_SID;
7const authToken = process.env.TWILIO_AUTH_TOKEN;
8const client = twilio(accountSid, authToken);
9
10async function createVerification() {
11  const verification = await client.verify.v2
12    .services("VAaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa")
13    .verifications.create({
14      channel: "email",
15      to: "customer@example.com",
16    });
17
18  console.log(verification.sid);
19}
20
21createVerification();

Output

1{
2  "sid": "VEaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa",
3  "service_sid": "VAaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa",
4  "account_sid": "ACaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa",
5  "to": "customer@example.com",
6  "channel": "email",
7  "status": "pending",
8  "valid": false,
9  "date_created": "2015-07-30T20:00:00Z",
10  "date_updated": "2015-07-30T20:00:00Z",
11  "lookup": {},
12  "amount": null,
13  "payee": null,
14  "send_code_attempts": [
15    {
16      "time": "2015-07-30T20:00:00Z",
17      "channel": "SMS",
18      "attempt_sid": "VLaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa"
19    }
20  ],
21  "sna": null,
22  "url": "https://verify.twilio.com/v2/Services/VAaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa/Verifications/VEaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa"
23}

Email Channel Configuration

(information)

Info

Verify's email channel requires additional Service configuration. Please refer to the email channel setup documentation for detailed instructions.

The email ChannelConfiguration parameter is an object that supports the following keys:

Key	Data Type	Description
`from`	string	Optional parameter. If included must be a valid email address.
`from_name`	string	Optional parameter. Name of the sender.
`template_id`	string	Override the default template from the Verify Service email integration. Create a new template in the SendGrid dashboard or learn more in the SendGrid docs.
`substitutions`	object	Variable substitution for dynamic email templates (learn more). See code sample below.

Substitutions code sample

1{
2  "substitutions": {
3    "username": "jdoe321",
4    "first_name": "Jane",
5    "last_name": "Doe"
6  }
7}

Localization and Supported Languages

Verify supports delivering verification codes in more than 30 languages over SMS, Voice, and WhatsApp. A verification message's language will automatically resolve based on the country code of the phone number provided, with English as the fallback language. To find out more about which languages are supported visit our page on Supported Languages.

(information)

Canadian Carrier Data Support

By default, Verify will not return carrier data for Canadian phone numbers. If you need carrier data on Canadian phone numbers, please visit our support site to enable this feature.

Fetch a Verification

GET https://verify.twilio.com/v2/Services/{ServiceSid}/Verifications/{Sid}

Path parameters

Property nameTypeRequiredPIIDescription

ServiceSidSID<VA>required

Not PII

The SID of the verification Service to fetch the resource from.

Pattern: ^VA[0-9a-fA-F]{32}$Min length: 34Max length: 34

Sidstringrequired

Not PII

The Twilio-provided string that uniquely identifies the Verification resource to fetch.

Fetch a Verification by SID

1// Download the helper library from https://www.twilio.com/docs/node/install
2const twilio = require("twilio"); // Or, for ESM: import twilio from "twilio";
3
4// Find your Account SID and Auth Token at twilio.com/console
5// and set the environment variables. See http://twil.io/secure
6const accountSid = process.env.TWILIO_ACCOUNT_SID;
7const authToken = process.env.TWILIO_AUTH_TOKEN;
8const client = twilio(accountSid, authToken);
9
10async function fetchVerification() {
11  const verification = await client.verify.v2
12    .services("VAaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa")
13    .verifications("VEXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX")
14    .fetch();
15
16  console.log(verification.status);
17}
18
19fetchVerification();

Output

1{
2  "sid": "VEXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX",
3  "service_sid": "VAaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa",
4  "account_sid": "ACaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa",
5  "to": "+15017122661",
6  "channel": "sms",
7  "status": "pending",
8  "valid": false,
9  "date_created": "2015-07-30T20:00:00Z",
10  "date_updated": "2015-07-30T20:00:00Z",
11  "lookup": {},
12  "amount": null,
13  "payee": null,
14  "send_code_attempts": [
15    {
16      "time": "2015-07-30T20:00:00Z",
17      "channel": "SMS",
18      "attempt_sid": "VLaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa"
19    }
20  ],
21  "sna": null,
22  "url": "https://verify.twilio.com/v2/Services/VAaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa/Verifications/VEaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa"
23}

Update a Verification Status

POST https://verify.twilio.com/v2/Services/{ServiceSid}/Verifications/{Sid}

Mark the verification as approved after your application had validated the verification code.

Mark the verification as canceled to start a new verification session with a different code before the previous code expires (10 minutes). Only recommended during testing or if you're using custom verification codes.

For most other use cases, Verify is able to manage the complete lifecycle of a verification with the Verification Check Resource.

Path parameters

Property nameTypeRequiredPIIDescription

ServiceSidSID<VA>required

Not PII

The SID of the verification Service to update the resource from.

Pattern: ^VA[0-9a-fA-F]{32}$Min length: 34Max length: 34

Sidstringrequired

Not PII

The Twilio-provided string that uniquely identifies the Verification resource to update.

Request body parameters

Encoding type:application/x-www-form-urlencoded

SchemaExample

Property nameTypeRequiredDescriptionChild properties

Statusenum<string>required

Not PII

The new status of the resource. Can be: canceled or approved.

Possible values:

canceledapproved

Manually Approve Verification using SID

1// Download the helper library from https://www.twilio.com/docs/node/install
2const twilio = require("twilio"); // Or, for ESM: import twilio from "twilio";
3
4// Find your Account SID and Auth Token at twilio.com/console
5// and set the environment variables. See http://twil.io/secure
6const accountSid = process.env.TWILIO_ACCOUNT_SID;
7const authToken = process.env.TWILIO_AUTH_TOKEN;
8const client = twilio(accountSid, authToken);
9
10async function updateVerification() {
11  const verification = await client.verify.v2
12    .services("VAaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa")
13    .verifications("VEXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX")
14    .update({ status: "approved" });
15
16  console.log(verification.status);
17}
18
19updateVerification();

Output

1{
2  "sid": "VEXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX",
3  "service_sid": "VAaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa",
4  "account_sid": "ACaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa",
5  "to": "+15017122661",
6  "channel": "sms",
7  "status": "approved",
8  "valid": false,
9  "date_created": "2015-07-30T20:00:00Z",
10  "date_updated": "2015-07-30T20:00:00Z",
11  "lookup": {},
12  "amount": null,
13  "payee": null,
14  "send_code_attempts": [
15    {
16      "time": "2015-07-30T20:00:00Z",
17      "channel": "SMS",
18      "attempt_sid": "VLaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa"
19    }
20  ],
21  "sna": null,
22  "url": "https://verify.twilio.com/v2/Services/VAaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa/Verifications/VEaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa"
23}

Manually Approve Verification using Phone Number

1// Download the helper library from https://www.twilio.com/docs/node/install
2const twilio = require("twilio"); // Or, for ESM: import twilio from "twilio";
3
4// Find your Account SID and Auth Token at twilio.com/console
5// and set the environment variables. See http://twil.io/secure
6const accountSid = process.env.TWILIO_ACCOUNT_SID;
7const authToken = process.env.TWILIO_AUTH_TOKEN;
8const client = twilio(accountSid, authToken);
9
10async function updateVerification() {
11  const verification = await client.verify.v2
12    .services("VAaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa")
13    .verifications("+15017122661")
14    .update({ status: "approved" });
15
16  console.log(verification.status);
17}
18
19updateVerification();

Output

1{
2  "sid": "+15017122661",
3  "service_sid": "VAaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa",
4  "account_sid": "ACaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa",
5  "to": "+15017122661",
6  "channel": "sms",
7  "status": "approved",
8  "valid": true,
9  "date_created": "2015-07-30T20:00:00Z",
10  "date_updated": "2015-07-30T20:00:00Z",
11  "lookup": {},
12  "amount": null,
13  "payee": null,
14  "send_code_attempts": [
15    {
16      "time": "2015-07-30T20:00:00Z",
17      "channel": "SMS",
18      "attempt_sid": "VLaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa"
19    }
20  ],
21  "sna": null,
22  "url": "https://verify.twilio.com/v2/Services/VAaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa/Verifications/VEaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa"
23}

Manually Cancel a Verification

1// Download the helper library from https://www.twilio.com/docs/node/install
2const twilio = require("twilio"); // Or, for ESM: import twilio from "twilio";
3
4// Find your Account SID and Auth Token at twilio.com/console
5// and set the environment variables. See http://twil.io/secure
6const accountSid = process.env.TWILIO_ACCOUNT_SID;
7const authToken = process.env.TWILIO_AUTH_TOKEN;
8const client = twilio(accountSid, authToken);
9
10async function updateVerification() {
11  const verification = await client.verify.v2
12    .services("VAaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa")
13    .verifications("VEXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX")
14    .update({ status: "canceled" });
15
16  console.log(verification.status);
17}
18
19updateVerification();

Output

1{
2  "sid": "VEXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX",
3  "service_sid": "VAaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa",
4  "account_sid": "ACaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa",
5  "to": "+15017122661",
6  "channel": "sms",
7  "status": "canceled",
8  "valid": false,
9  "date_created": "2015-07-30T20:00:00Z",
10  "date_updated": "2015-07-30T20:00:00Z",
11  "lookup": {},
12  "amount": null,
13  "payee": null,
14  "send_code_attempts": [
15    {
16      "time": "2015-07-30T20:00:00Z",
17      "channel": "SMS",
18      "attempt_sid": "VLaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa"
19    }
20  ],
21  "sna": null,
22  "url": "https://verify.twilio.com/v2/Services/VAaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa/Verifications/VEaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa"
23}

Next Steps

Now that you know how to start a verification, you can use the Verification Check API to validate if the code a user provided was correct or that the Silent Network Auth process was successful.