diff --git a/src/main/java/dev/resms/ReSMS.java b/src/main/java/dev/resms/ReSMS.java
index 8430d14..846c458 100644
--- a/src/main/java/dev/resms/ReSMS.java
+++ b/src/main/java/dev/resms/ReSMS.java
@@ -1,5 +1,6 @@
 package dev.resms;
 
+import dev.resms.services.otp.Otp;
 import dev.resms.services.sms.Sms;
 import lombok.RequiredArgsConstructor;
 
@@ -17,4 +18,13 @@ public class ReSMS {
   public Sms sms() {
     return new Sms(apiKey);
   }
+
+  /**
+   * Returns an Otp object that can be used to interact with the Otp service.
+   *
+   * @return An Otp object.
+   */
+  public Otp otp() {
+    return new Otp(apiKey);
+  }
 }
diff --git a/src/main/java/dev/resms/core/net/HttpMethod.java b/src/main/java/dev/resms/core/net/HttpMethod.java
index fd75db3..7a7f9a9 100644
--- a/src/main/java/dev/resms/core/net/HttpMethod.java
+++ b/src/main/java/dev/resms/core/net/HttpMethod.java
@@ -4,4 +4,5 @@
 public enum HttpMethod {
   GET,
   POST,
+  DELETE,
 }
diff --git a/src/main/java/dev/resms/services/otp/Otp.java b/src/main/java/dev/resms/services/otp/Otp.java
new file mode 100644
index 0000000..e807087
--- /dev/null
+++ b/src/main/java/dev/resms/services/otp/Otp.java
@@ -0,0 +1,89 @@
+package dev.resms.services.otp;
+
+import dev.resms.core.exception.ReSMSException;
+import dev.resms.core.net.AbstractHttpResponse;
+import dev.resms.core.net.HttpMethod;
+import dev.resms.core.service.BaseService;
+import dev.resms.services.otp.model.CreateOtpOptions;
+import dev.resms.services.otp.model.CreateOtpResponse;
+import dev.resms.services.otp.model.DeleteOtpResponse;
+import dev.resms.services.otp.model.VerifyOtpOptions;
+import dev.resms.services.otp.model.VerifyOtpResponse;
+
+public class Otp extends BaseService {
+  private static final String CREATE_OTP_PATH = "/otp";
+  private static final String VERIFY_OTP_PATH = "/otp/verify";
+  private static final String DELETE_OTP_PATH = "/otp";
+
+  /**
+   * Constructs an instance of the {@code Otp} class.
+   *
+   * @param apiKey The apiKey used for authentication.
+   */
+  public Otp(final String apiKey) {
+    super(apiKey);
+  }
+
+  /**
+   * Create an OTP based on the provided OTP request
+   *
+   * @param createOtpOptions The request containing OTP details.
+   * @return The response indicating the status of the OTP creation.
+   * @throws ReSMSException If an error occurs while creating the OTP.
+   */
+  public CreateOtpResponse create(CreateOtpOptions createOtpOptions) throws ReSMSException {
+    String payload = super.reSMSMapper.toJson(createOtpOptions);
+
+    AbstractHttpResponse<String> response =
+        super.httpClient.perform(CREATE_OTP_PATH, apiKey, HttpMethod.POST, payload);
+
+    if (!response.isSuccessful()) {
+      throw new ReSMSException(
+          "Failed to create otp: " + response.getCode() + " " + response.getBody());
+    }
+
+    return reSMSMapper.fromJson(response.getBody(), CreateOtpResponse.class);
+  }
+
+  /**
+   * Verify an OTP based on the provided OTP verify request
+   *
+   * @param verifyOtpOptions The request containing OTP verify details.
+   * @return The response indicating the status of the OTP verification.
+   * @throws ReSMSException If an error occurs while verifying the OTP.
+   */
+  public VerifyOtpResponse verify(VerifyOtpOptions verifyOtpOptions) throws ReSMSException {
+    String payload = super.reSMSMapper.toJson(verifyOtpOptions);
+
+    AbstractHttpResponse<String> response =
+        super.httpClient.perform(VERIFY_OTP_PATH, apiKey, HttpMethod.POST, payload);
+
+    if (!response.isSuccessful()) {
+      throw new ReSMSException(
+          "Failed to create otp: " + response.getCode() + " " + response.getBody());
+    }
+
+    return reSMSMapper.fromJson(response.getBody(), VerifyOtpResponse.class);
+  }
+
+  /**
+   * Delete an OTP based on its id
+   *
+   * @param otpId The id of the OTP to delete.
+   * @return The response indicating the status of the OTP deletion.
+   * @throws ReSMSException If an error occurs while deleting the OTP.
+   */
+  public DeleteOtpResponse delete(String otpId) throws ReSMSException {
+    String payload = "{\"otpId\": \"" + otpId + "\"}";
+
+    AbstractHttpResponse<String> response =
+        super.httpClient.perform(DELETE_OTP_PATH, apiKey, HttpMethod.DELETE, payload);
+
+    if (!response.isSuccessful()) {
+      throw new ReSMSException(
+          "Failed to create otp: " + response.getCode() + " " + response.getBody());
+    }
+
+    return reSMSMapper.fromJson(response.getBody(), DeleteOtpResponse.class);
+  }
+}
diff --git a/src/main/java/dev/resms/services/otp/model/CreateOtpOptions.java b/src/main/java/dev/resms/services/otp/model/CreateOtpOptions.java
new file mode 100644
index 0000000..9887476
--- /dev/null
+++ b/src/main/java/dev/resms/services/otp/model/CreateOtpOptions.java
@@ -0,0 +1,17 @@
+package dev.resms.services.otp.model;
+
+import lombok.Builder;
+import lombok.Getter;
+import lombok.Setter;
+
+@Getter
+@Setter
+@Builder
+public class CreateOtpOptions {
+  private String to;
+  private String message;
+  private String senderId;
+  private OtpCode codeType;
+  private int codeLength;
+  private int validityMinutes;
+}
diff --git a/src/main/java/dev/resms/services/otp/model/CreateOtpResponse.java b/src/main/java/dev/resms/services/otp/model/CreateOtpResponse.java
new file mode 100644
index 0000000..45b3c81
--- /dev/null
+++ b/src/main/java/dev/resms/services/otp/model/CreateOtpResponse.java
@@ -0,0 +1,15 @@
+package dev.resms.services.otp.model;
+
+import dev.resms.core.model.Response;
+import lombok.Getter;
+
+@Getter
+public class CreateOtpResponse extends Response {
+  private CreateOtpResponseData data;
+
+  @Getter
+  public static class CreateOtpResponseData {
+    private String phoneNumber;
+    private String expiresAt;
+  }
+}
diff --git a/src/main/java/dev/resms/services/otp/model/DeleteOtpResponse.java b/src/main/java/dev/resms/services/otp/model/DeleteOtpResponse.java
new file mode 100644
index 0000000..34ffe54
--- /dev/null
+++ b/src/main/java/dev/resms/services/otp/model/DeleteOtpResponse.java
@@ -0,0 +1,11 @@
+package dev.resms.services.otp.model;
+
+import dev.resms.core.model.Response;
+import lombok.Getter;
+
+@Getter
+public class DeleteOtpResponse extends Response {
+  private String otpId;
+  private String phoneNumber;
+  private String revokedAt;
+}
diff --git a/src/main/java/dev/resms/services/otp/model/OtpCode.java b/src/main/java/dev/resms/services/otp/model/OtpCode.java
new file mode 100644
index 0000000..c33b369
--- /dev/null
+++ b/src/main/java/dev/resms/services/otp/model/OtpCode.java
@@ -0,0 +1,6 @@
+package dev.resms.services.otp.model;
+
+public enum OtpCode {
+  NUMERIC,
+  ALPHA,
+}
diff --git a/src/main/java/dev/resms/services/otp/model/VerifyOtpOptions.java b/src/main/java/dev/resms/services/otp/model/VerifyOtpOptions.java
new file mode 100644
index 0000000..9b92fa8
--- /dev/null
+++ b/src/main/java/dev/resms/services/otp/model/VerifyOtpOptions.java
@@ -0,0 +1,13 @@
+package dev.resms.services.otp.model;
+
+import lombok.Builder;
+import lombok.Getter;
+import lombok.Setter;
+
+@Getter
+@Setter
+@Builder
+public class VerifyOtpOptions {
+  private String to;
+  private String code;
+}
diff --git a/src/main/java/dev/resms/services/otp/model/VerifyOtpResponse.java b/src/main/java/dev/resms/services/otp/model/VerifyOtpResponse.java
new file mode 100644
index 0000000..e0fe935
--- /dev/null
+++ b/src/main/java/dev/resms/services/otp/model/VerifyOtpResponse.java
@@ -0,0 +1,16 @@
+package dev.resms.services.otp.model;
+
+import dev.resms.core.model.Response;
+import lombok.Getter;
+
+@Getter
+public class VerifyOtpResponse extends Response {
+  private VerifyOtpResponseData data;
+
+  @Getter
+  public static class VerifyOtpResponseData {
+    private String otpId;
+    private String phoneNumber;
+    private String verifiedAt;
+  }
+}