diff --git a/.gitignore b/.gitignore
new file mode 100644
index 0000000000000000000000000000000000000000..c41cc9e35e38efc7d080637859e6c72940b374a2
--- /dev/null
+++ b/.gitignore
@@ -0,0 +1 @@
+/target
\ No newline at end of file
diff --git a/.vscode/settings.json b/.vscode/settings.json
new file mode 100644
index 0000000000000000000000000000000000000000..e0f15db2eb22b5d618150277e48b741f8fdd277a
--- /dev/null
+++ b/.vscode/settings.json
@@ -0,0 +1,3 @@
+{
+    "java.configuration.updateBuildConfiguration": "automatic"
+}
\ No newline at end of file
diff --git a/docker-compose.yml b/docker-compose.yml
new file mode 100644
index 0000000000000000000000000000000000000000..7bb40ee5d814eda2e82b4103d693e9ba5d0f995f
--- /dev/null
+++ b/docker-compose.yml
@@ -0,0 +1,32 @@
+version: "3"
+
+services:
+  postgres:
+    image: postgres
+    volumes:
+      - db:/var/lib/postgresql/data
+    environment:
+      POSTGRES_USER: keycloak
+      POSTGRES_PASSWORD: keycloak
+    ports:
+      - 5432:5432
+  keycloak:
+    image: quay.io/keycloak/keycloak:16.1.1
+    volumes:
+      - ./target/keycloak-scim-1.0-SNAPSHOT-jar-with-dependencies.jar:/opt/jboss/keycloak/standalone/deployments/keycloak-scim-1.0-SNAPSHOT.jar
+    environment:
+      DB_VENDOR: POSTGRES
+      DB_ADDR: postgres
+      DB_DATABASE: keycloak
+      DB_USER: keycloak
+      DB_SCHEMA: public
+      DB_PASSWORD: keycloak
+      KEYCLOAK_USER: admin
+      KEYCLOAK_PASSWORD: admin
+    ports:
+      - 8080:8080
+    depends_on:
+      - postgres
+
+volumes:
+  db:
diff --git a/pom.xml b/pom.xml
new file mode 100644
index 0000000000000000000000000000000000000000..9ec62e56e41a45c49e35149358ca2c9a404dbde8
--- /dev/null
+++ b/pom.xml
@@ -0,0 +1,198 @@
+<?xml version="1.0" encoding="UTF-8"?>
+
+<project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
+  <modelVersion>4.0.0</modelVersion>
+
+  <groupId>sh.libre.scim</groupId>
+  <artifactId>keycloak-scim</artifactId>
+  <version>1.0-SNAPSHOT</version>
+
+  <name>keycloak-scim</name>
+  <!-- FIXME change it to the project's website -->
+  <url>http://www.example.com</url>
+
+  <properties>
+    <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
+    <maven.compiler.source>11</maven.compiler.source>
+    <maven.compiler.target>11</maven.compiler.target>
+    <keycloak.version>16.1.0</keycloak.version>
+    <kotlin.version>1.6.10</kotlin.version>
+    <jackson.version>2.12.1</jackson.version>
+    <resteasy.version>3.15.1.Final</resteasy.version>
+    <resilience4jVersion>1.7.0</resilience4jVersion>
+  </properties>
+
+  <dependencies>
+    <dependency>
+      <groupId>org.keycloak</groupId>
+      <artifactId>keycloak-core</artifactId>
+      <scope>provided</scope>
+      <version>${keycloak.version}</version>
+    </dependency>
+    <dependency>
+      <groupId>org.keycloak</groupId>
+      <artifactId>keycloak-server-spi</artifactId>
+      <scope>provided</scope>
+      <version>${keycloak.version}</version>
+    </dependency>
+    <dependency>
+      <groupId>org.keycloak</groupId>
+      <artifactId>keycloak-server-spi-private</artifactId>
+      <scope>provided</scope>
+      <version>${keycloak.version}</version>
+    </dependency>
+    <dependency>
+      <groupId>org.keycloak</groupId>
+      <artifactId>keycloak-services</artifactId>
+      <scope>provided</scope>
+      <version>${keycloak.version}</version>
+    </dependency>
+    <dependency>
+      <groupId>org.keycloak</groupId>
+      <artifactId>keycloak-model-jpa</artifactId>
+      <scope>provided</scope>
+      <version>${keycloak.version}</version>
+    </dependency>
+    <dependency>
+      <groupId>com.unboundid.product.scim2</groupId>
+      <artifactId>scim2-sdk-client</artifactId>
+      <version>2.3.7</version>
+    </dependency>
+    <dependency>
+      <groupId>javax.ws.rs</groupId>
+      <artifactId>javax.ws.rs-api</artifactId>
+      <version>2.1.1</version>
+      <scope>provided</scope>
+    </dependency>
+    <dependency>
+      <groupId>javax.xml.bind</groupId>
+      <artifactId>jaxb-api</artifactId>
+      <version>2.3.1</version>
+      <scope>provided</scope>
+    </dependency>
+    <dependency>
+      <groupId>com.fasterxml.jackson.core</groupId>
+      <artifactId>jackson-core</artifactId>
+      <version>${jackson.version}</version>
+      <scope>provided</scope>
+    </dependency>
+    <dependency>
+      <groupId>com.fasterxml.jackson.core</groupId>
+      <artifactId>jackson-databind</artifactId>
+      <version>${jackson.version}</version>
+      <scope>provided</scope>
+    </dependency>
+    <dependency>
+      <groupId>com.fasterxml.jackson.core</groupId>
+      <artifactId>jackson-annotations</artifactId>
+      <version>${jackson.version}</version>
+      <scope>provided</scope>
+    </dependency>
+    <dependency>
+      <groupId>com.fasterxml.jackson.module</groupId>
+      <artifactId>jackson-module-jaxb-annotations</artifactId>
+      <version>${jackson.version}</version>
+      <scope>provided</scope>
+    </dependency>
+    <dependency>
+      <groupId>com.fasterxml.jackson.datatype</groupId>
+      <artifactId>jackson-datatype-jdk8</artifactId>
+      <version>${jackson.version}</version>
+      <scope>provided</scope>
+    </dependency>
+    <dependency>
+      <groupId>com.fasterxml.jackson.jaxrs</groupId>
+      <artifactId>jackson-jaxrs-json-provider</artifactId>
+      <version>${jackson.version}</version>
+      <scope>provided</scope>
+    </dependency>
+    <dependency>
+      <groupId>com.fasterxml.jackson.jaxrs</groupId>
+      <artifactId>jackson-jaxrs-base</artifactId>
+      <version>${jackson.version}</version>
+      <scope>provided</scope>
+    </dependency>
+    <dependency>
+      <groupId>org.jboss.resteasy</groupId>
+      <artifactId>resteasy-jaxrs</artifactId>
+      <version>${resteasy.version}</version>
+      <scope>provided</scope>
+    </dependency>
+    <dependency>
+      <groupId>org.jboss.resteasy</groupId>
+      <artifactId>resteasy-multipart-provider</artifactId>
+      <version>${resteasy.version}</version>
+      <scope>provided</scope>
+    </dependency>
+    <dependency>
+      <groupId>org.jboss.resteasy</groupId>
+      <artifactId>resteasy-jackson2-provider</artifactId>
+      <version>${resteasy.version}</version>
+      <scope>provided</scope>
+    </dependency>
+    <dependency>
+      <groupId>org.jboss.resteasy</groupId>
+      <artifactId>resteasy-jaxb-provider</artifactId>
+      <version>${resteasy.version}</version>
+      <scope>provided</scope>
+    </dependency>
+    <dependency>
+      <groupId>org.jboss.resteasy</groupId>
+      <artifactId>resteasy-client</artifactId>
+      <version>${resteasy.version}</version>
+      <scope>provided</scope>
+    </dependency>
+    <dependency>
+      <groupId>io.github.resilience4j</groupId>
+      <artifactId>resilience4j-retry</artifactId>
+      <version>${resilience4jVersion}</version>
+    </dependency>
+    <dependency>
+      <groupId>org.hibernate</groupId>
+      <artifactId>hibernate-core</artifactId>
+      <version>5.6.5.Final</version>
+    </dependency>
+    <dependency>
+      <groupId>org.hibernate</groupId>
+      <artifactId>hibernate-validator</artifactId>
+      <version>7.0.2.Final</version>
+    </dependency>
+  </dependencies>
+
+  <build>
+    <plugins>
+      <plugin>
+        <groupId>org.wildfly.plugins</groupId>
+        <artifactId>wildfly-maven-plugin</artifactId>
+        <version>2.1.0</version>
+        <configuration>
+          <skip>false</skip>
+        </configuration>
+      </plugin>
+      <plugin>
+        <groupId>org.apache.maven.plugins</groupId>
+        <artifactId>maven-assembly-plugin</artifactId>
+        <version>2.6</version>
+        <executions>
+          <execution>
+            <id>make-assembly</id>
+            <phase>package</phase>
+            <goals>
+              <goal>single</goal>
+            </goals>
+            <configuration>
+              <archive>
+                <manifest>
+                  <mainClass>${main.class}</mainClass>
+                </manifest>
+              </archive>
+              <descriptorRefs>
+                <descriptorRef>jar-with-dependencies</descriptorRef>
+              </descriptorRefs>
+            </configuration>
+          </execution>
+        </executions>
+      </plugin>
+    </plugins>
+  </build>
+</project>
\ No newline at end of file
diff --git a/src/main/java/sh/libre/scim/core/ScimClient.java b/src/main/java/sh/libre/scim/core/ScimClient.java
new file mode 100644
index 0000000000000000000000000000000000000000..1e1533b593f823a1c3e5752d4fe0f85e2c8508d3
--- /dev/null
+++ b/src/main/java/sh/libre/scim/core/ScimClient.java
@@ -0,0 +1,156 @@
+package sh.libre.scim.core;
+
+import com.unboundid.scim2.client.ScimService;
+import com.unboundid.scim2.common.exceptions.ScimException;
+import com.unboundid.scim2.common.types.Email;
+import com.unboundid.scim2.common.types.Meta;
+import com.unboundid.scim2.common.types.Name;
+import com.unboundid.scim2.common.types.UserResource;
+import io.github.resilience4j.core.IntervalFunction;
+import io.github.resilience4j.retry.RetryConfig;
+import io.github.resilience4j.retry.RetryRegistry;
+import java.net.URI;
+import java.util.ArrayList;
+import java.lang.RuntimeException;
+import javax.persistence.EntityManager;
+import javax.persistence.NoResultException;
+import javax.persistence.TypedQuery;
+import javax.ws.rs.client.Client;
+
+import org.jboss.logging.Logger;
+import org.jboss.resteasy.client.jaxrs.ResteasyClientBuilder;
+import org.keycloak.models.UserModel;
+import sh.libre.scim.jpa.ScimResource;
+
+public class ScimClient {
+
+    final Logger LOGGER = Logger.getLogger(ScimClient.class);
+    final Client client = ResteasyClientBuilder.newClient();
+    final ScimService scimService;
+    final RetryRegistry registry;
+    final String name;
+    final String realmId;
+    final EntityManager entityManager;
+
+    public ScimClient(String name, String url, String realmId, EntityManager entityManager) {
+        this.name = name;
+        this.realmId = realmId;
+        this.entityManager = entityManager;
+        var target = client.target(url);
+        scimService = new ScimService(target);
+
+        RetryConfig retryConfig = RetryConfig.custom()
+                .maxAttempts(10)
+                .intervalFunction(IntervalFunction.ofExponentialBackoff())
+                .build();
+        registry = RetryRegistry.of(retryConfig);
+    }
+
+    public void createUser(UserModel kcUser) {
+        LOGGER.info("Create User");
+        var user = toUser(kcUser);
+        var retry = registry.retry("create-" + kcUser.getId());
+        var spUser = retry.executeSupplier(() -> {
+            try {
+                return scimService.create("Users", user);
+            } catch (ScimException e) {
+                throw new RuntimeException(e);
+            }
+        });
+        var scimUser = toScimUser(spUser);
+        entityManager.persist(scimUser);
+    }
+
+    public void replaceUser(UserModel kcUser) {
+        LOGGER.info("Replace User");
+        try {
+            var resource = querUserById(kcUser.getId());
+            var user = toUser(kcUser);
+            user.setId(resource.getRemoteId());
+            var meta = new Meta();
+            var uri = new URI("Users/" + user.getId());
+            meta.setLocation(uri);
+            user.setMeta(meta);
+            var retry = registry.retry("replace-" + kcUser.getId());
+            retry.executeSupplier(() -> {
+                try {
+                    return scimService.replace(user);
+                } catch (ScimException e) {
+                    throw new RuntimeException(e);
+                }
+            });
+        } catch (NoResultException e) {
+            LOGGER.warnf("Failde to replce user %s, scim mapping not found", kcUser.getId());
+        } catch (Exception e) {
+            LOGGER.error(e);
+        }
+    }
+
+    public void deleteUser(String userId) {
+        LOGGER.info("Delete User");
+        try {
+            var resource = querUserById(userId);
+            var retry = registry.retry("delete-" + userId);
+            retry.executeSupplier(() -> {
+                try {
+                    scimService.delete("Users", resource.getRemoteId());
+                } catch (ScimException e) {
+                    throw new RuntimeException(e);
+                }
+                return "";
+            });
+            entityManager.remove(resource);
+        } catch (NoResultException e) {
+            LOGGER.warnf("Failde to replce user %s, scim mapping not found", userId);
+        }
+    }
+
+    private TypedQuery<ScimResource> queryUser(String query) {
+        return entityManager
+                .createNamedQuery(query, ScimResource.class)
+                .setParameter("realmId", realmId)
+                .setParameter("type", "Users")
+                .setParameter("serviceProvider", name);
+    }
+
+    private ScimResource querUserById(String id) {
+        return queryUser("findByLocalId").setParameter("id", id).getSingleResult();
+    }
+
+    private ScimResource scimUser() {
+        var resource = new ScimResource();
+        resource.setType("Users");
+        resource.setRealmId(realmId);
+        resource.setServiceProvider(name);
+        return resource;
+    }
+
+    private ScimResource toScimUser(UserResource user) {
+        var resource = scimUser();
+        resource.setRemoteId(user.getId());
+        resource.setLocalId(user.getExternalId());
+        return resource;
+    }
+
+    private UserResource toUser(UserModel kcUser) {
+        var user = new UserResource();
+        user.setExternalId(kcUser.getId());
+        user.setUserName(kcUser.getUsername());
+        var name = new Name();
+        name.setGivenName(kcUser.getFirstName());
+        name.setFamilyName(kcUser.getLastName());
+        user.setName(name);
+
+        var emails = new ArrayList<Email>();
+        if (kcUser.getEmail() != "") {
+            var email = new Email().setPrimary(true).setValue(kcUser.getEmail());
+            emails.add(email);
+        }
+        user.setEmails(emails);
+        return user;
+    }
+
+    public void close() {
+        client.close();
+    }
+}
diff --git a/src/main/java/sh/libre/scim/core/ScimDispatcher.java b/src/main/java/sh/libre/scim/core/ScimDispatcher.java
new file mode 100644
index 0000000000000000000000000000000000000000..40bef841e566a66a19d9bdaf9ec1a584b7c83baa
--- /dev/null
+++ b/src/main/java/sh/libre/scim/core/ScimDispatcher.java
@@ -0,0 +1,58 @@
+package sh.libre.scim.core;
+
+import java.util.ArrayList;
+import java.util.function.Consumer;
+import org.jboss.logging.Logger;
+import javax.persistence.EntityManager;
+
+import org.keycloak.connections.jpa.JpaConnectionProvider;
+import org.keycloak.models.KeycloakSession;
+
+public class ScimDispatcher {
+    final KeycloakSession session;
+    final EntityManager entityManager;
+    final Logger LOGGER = Logger.getLogger(ScimDispatcher.class);
+    ArrayList<ScimClient> clients = new ArrayList<ScimClient>();
+
+    public ScimDispatcher(KeycloakSession session) {
+        this.session = session;
+        entityManager = session.getProvider(JpaConnectionProvider.class).getEntityManager();
+        reloadClients();
+    }
+
+    public void reloadClients() {
+        close();
+        LOGGER.info("Cleared SCIM Clients");
+        var realm = session.getContext().getRealm();
+        clients = new ArrayList<ScimClient>();
+        var kcClients = session.clients().getClientsStream(realm);
+        for (var kcClient : kcClients.toList()) {
+            var endpoint = kcClient.getAttribute("scim-endpoint");
+            var name = kcClient.getAttribute("scim-name");
+            if (endpoint != "") {
+                if (name == "") {
+                    name = kcClient.getName();
+                }
+                clients.add(new ScimClient(
+                        name,
+                        endpoint,
+                        realm.getId(),
+                        entityManager));
+                LOGGER.infof("Added %s SCIM Client (%s)", name, endpoint);
+            }
+        }
+
+    }
+
+    public void close() {
+        for (var client : clients) {
+            client.close();
+        }
+    }
+
+    public void run(Consumer<ScimClient> f) {
+        for (var client : clients) {
+            f.accept(client);
+        }
+    }
+}
diff --git a/src/main/java/sh/libre/scim/event/ScimEventListenerProvider.java b/src/main/java/sh/libre/scim/event/ScimEventListenerProvider.java
new file mode 100644
index 0000000000000000000000000000000000000000..ff23030ed2b65f3b97b3b8494b7a8f6714a5ee1f
--- /dev/null
+++ b/src/main/java/sh/libre/scim/event/ScimEventListenerProvider.java
@@ -0,0 +1,72 @@
+package sh.libre.scim.event;
+
+import org.jboss.logging.Logger;
+import org.keycloak.events.Event;
+import org.keycloak.events.EventListenerProvider;
+import org.keycloak.events.EventType;
+import org.keycloak.events.admin.AdminEvent;
+import org.keycloak.events.admin.OperationType;
+import org.keycloak.events.admin.ResourceType;
+import org.keycloak.models.KeycloakSession;
+import org.keycloak.models.UserModel;
+
+import sh.libre.scim.core.ScimDispatcher;
+
+public class ScimEventListenerProvider implements EventListenerProvider {
+    final Logger LOGGER = Logger.getLogger(ScimEventListenerProvider.class);
+    ScimDispatcher dispatcher;
+    KeycloakSession session;
+
+    public ScimEventListenerProvider(KeycloakSession session) {
+        this.session = session;
+        dispatcher = new ScimDispatcher(session);
+
+    }
+
+    @Override
+    public void close() {
+        dispatcher.close();
+    }
+
+    @Override
+    public void onEvent(Event event) {
+        if (event.getType() == EventType.REGISTER) {
+            var user = getUser(event.getUserId());
+            dispatcher.run((client) -> client.createUser(user));
+        }
+        if (event.getType() == EventType.UPDATE_EMAIL || event.getType() == EventType.UPDATE_PROFILE) {
+            var user = getUser(event.getUserId());
+            dispatcher.run((client) -> client.replaceUser(user));
+        }
+        if (event.getType() == EventType.DELETE_ACCOUNT) {
+            dispatcher.run((client) -> client.deleteUser(event.getUserId()));
+        }
+    }
+
+    @Override
+    public void onEvent(AdminEvent event, boolean includeRepresentation) {
+        if (event.getResourceType() == ResourceType.CLIENT) {
+            dispatcher.reloadClients();
+        }
+        if (event.getResourceType() == ResourceType.USER) {
+            var userId = event.getResourcePath().replace("users/", "");
+            LOGGER.infof("%s %s", userId, event.getOperationType());
+            if (event.getOperationType() == OperationType.CREATE) {
+                // session.getTransactionManager().rollback();
+                var user = getUser(userId);
+                dispatcher.run((client) -> client.createUser(user));
+            }
+            if (event.getOperationType() == OperationType.UPDATE) {
+                var user = getUser(userId);
+                dispatcher.run((client) -> client.replaceUser(user));
+            }
+            if (event.getOperationType() == OperationType.DELETE) {
+                dispatcher.run((client) -> client.deleteUser(userId));
+            }
+        }
+    }
+
+    private UserModel getUser(String id) {
+        return session.users().getUserById(session.getContext().getRealm(), id);
+    }
+}
diff --git a/src/main/java/sh/libre/scim/event/ScimEventListenerProviderFactory.java b/src/main/java/sh/libre/scim/event/ScimEventListenerProviderFactory.java
new file mode 100644
index 0000000000000000000000000000000000000000..debe59b8fb75f30b9aecacbb5d83c5e2e83385cf
--- /dev/null
+++ b/src/main/java/sh/libre/scim/event/ScimEventListenerProviderFactory.java
@@ -0,0 +1,32 @@
+package sh.libre.scim.event;
+
+import org.keycloak.Config.Scope;
+import org.keycloak.events.EventListenerProvider;
+import org.keycloak.events.EventListenerProviderFactory;
+import org.keycloak.models.KeycloakSession;
+import org.keycloak.models.KeycloakSessionFactory;
+
+public class ScimEventListenerProviderFactory implements EventListenerProviderFactory {
+
+    @Override
+    public EventListenerProvider create(KeycloakSession session) {
+        return new ScimEventListenerProvider(session);
+    }
+
+    @Override
+    public void init(Scope config) {
+    }
+
+    @Override
+    public void postInit(KeycloakSessionFactory factory) {
+    }
+
+    @Override
+    public void close() {
+    }
+
+    @Override
+    public String getId() {
+        return "scim";
+    }
+}
diff --git a/src/main/java/sh/libre/scim/jpa/ScimResource.java b/src/main/java/sh/libre/scim/jpa/ScimResource.java
new file mode 100644
index 0000000000000000000000000000000000000000..0034e257eba85d8bb22b02db47e6191aec12c4b7
--- /dev/null
+++ b/src/main/java/sh/libre/scim/jpa/ScimResource.java
@@ -0,0 +1,88 @@
+package sh.libre.scim.jpa;
+
+import javax.persistence.Column;
+import javax.persistence.Entity;
+import javax.persistence.Id;
+import javax.persistence.IdClass;
+import javax.persistence.NamedQuery;
+import javax.persistence.NamedQueries;
+import javax.persistence.Table;
+
+@Entity
+@IdClass(ScimResourceId.class)
+@Table(name = "SCIM_RESOURCE")
+@NamedQueries({
+                @NamedQuery(name = "findByLocalId", query = "from ScimResource where realmId = :realmId and type = :type and serviceProvider = :serviceProvider and localId = :id"),
+                @NamedQuery(name = "findByRemoteId", query = "from ScimResource where realmId = :realmId and type = :type and serviceProvider = :serviceProvider and remoteId = :id") })
+public class ScimResource {
+
+        @Id
+        @Column(name = "REALM_ID", nullable = false)
+        private String realmId;
+
+        @Id
+        @Column(name = "SERVICE_PROVIDER", nullable = false)
+        private String serviceProvider;
+
+        @Id
+        @Column(name = "TYPE", nullable = false)
+        private String type;
+
+        @Id
+        @Column(name = "REMOTE_ID", nullable = false)
+        private String remoteId;
+
+        @Column(name = "LOCAL_ID", nullable = false)
+        private String localId;
+
+        public ScimResource() {
+        }
+
+        public ScimResource(String realmId, String serviceProvider, String type, String remoteId, String localId) {
+                this.realmId = realmId;
+                this.serviceProvider = serviceProvider;
+                this.type = type;
+                this.remoteId = remoteId;
+                this.localId = localId;
+        }
+
+        public String getRealmId() {
+                return realmId;
+        }
+
+        public void setRealmId(String realmId) {
+                this.realmId = realmId;
+        }
+
+        public String getServiceProvider() {
+                return serviceProvider;
+        }
+
+        public void setServiceProvider(String serviceProvider) {
+                this.serviceProvider = serviceProvider;
+        }
+
+        public String getType() {
+                return type;
+        }
+
+        public void setType(String type) {
+                this.type = type;
+        }
+
+        public String getRemoteId() {
+                return remoteId;
+        }
+
+        public void setRemoteId(String remoteId) {
+                this.remoteId = remoteId;
+        }
+
+        public String getLocalId() {
+                return localId;
+        }
+
+        public void setLocalId(String localId) {
+                this.localId = localId;
+        }
+}
diff --git a/src/main/java/sh/libre/scim/jpa/ScimResourceId.java b/src/main/java/sh/libre/scim/jpa/ScimResourceId.java
new file mode 100644
index 0000000000000000000000000000000000000000..c97ff53a527b840a4522551c4300420a955063ea
--- /dev/null
+++ b/src/main/java/sh/libre/scim/jpa/ScimResourceId.java
@@ -0,0 +1,71 @@
+package sh.libre.scim.jpa;
+
+import java.io.Serializable;
+import java.util.Objects;
+
+public class ScimResourceId implements Serializable {
+    private String realmId;
+    private String serviceProvider;
+    private String type;
+    private String remoteId;
+
+    public ScimResourceId() {
+    }
+
+    public ScimResourceId(String realmId, String serviceProvider, String type, String remoteId) {
+        this.realmId = realmId;
+        this.serviceProvider = serviceProvider;
+        this.type = type;
+        this.remoteId = remoteId;
+    }
+
+    public String getRealmId() {
+        return realmId;
+    }
+
+    public void setRealmId(String realmId) {
+        this.realmId = realmId;
+    }
+
+    public String getServiceProvider() {
+        return serviceProvider;
+    }
+
+    public void setServiceProvider(String serviceProvider) {
+        this.serviceProvider = serviceProvider;
+    }
+
+    public String getType() {
+        return type;
+    }
+
+    public void setType(String type) {
+        this.type = type;
+    }
+
+    public String getRemoteId() {
+        return realmId;
+    }
+
+    public void setRemoteId(String remoteId) {
+        this.remoteId = remoteId;
+    }
+
+    @Override
+    public boolean equals(Object other) {
+        if (this == other)
+            return true;
+        if (!(other instanceof ScimResourceId))
+            return false;
+        var o = (ScimResourceId) other;
+        return (o.realmId == realmId &&
+                o.serviceProvider == serviceProvider &&
+                o.type == type &&
+                o.remoteId == remoteId);
+    }
+
+    @Override
+    public int hashCode() {
+        return Objects.hash(realmId, serviceProvider, type, remoteId);
+    }
+}
diff --git a/src/main/java/sh/libre/scim/jpa/ScimResourceProvider.java b/src/main/java/sh/libre/scim/jpa/ScimResourceProvider.java
new file mode 100644
index 0000000000000000000000000000000000000000..3fcd97bd3cff647751725250fcba8d70e6181862
--- /dev/null
+++ b/src/main/java/sh/libre/scim/jpa/ScimResourceProvider.java
@@ -0,0 +1,29 @@
+package sh.libre.scim.jpa;
+
+import java.util.List;
+
+import org.keycloak.connections.jpa.entityprovider.JpaEntityProvider;
+
+import java.util.Arrays;
+
+public class ScimResourceProvider implements JpaEntityProvider {
+
+    @Override
+    public List<Class<?>> getEntities() {
+        return Arrays.asList(ScimResource.class);
+    }
+
+    @Override
+    public String getChangelogLocation() {
+        return "META-INF/scim-resource-changelog.xml";
+    }
+
+    @Override
+    public void close() {
+    }
+
+    @Override
+    public String getFactoryId() {
+        return ScimResourceProviderFactory.ID;
+    }
+}
\ No newline at end of file
diff --git a/src/main/java/sh/libre/scim/jpa/ScimResourceProviderFactory.java b/src/main/java/sh/libre/scim/jpa/ScimResourceProviderFactory.java
new file mode 100644
index 0000000000000000000000000000000000000000..682ccbee04842201c29852895927d24e815329a5
--- /dev/null
+++ b/src/main/java/sh/libre/scim/jpa/ScimResourceProviderFactory.java
@@ -0,0 +1,32 @@
+package sh.libre.scim.jpa;
+
+import org.keycloak.Config.Scope;
+import org.keycloak.connections.jpa.entityprovider.JpaEntityProvider;
+import org.keycloak.connections.jpa.entityprovider.JpaEntityProviderFactory;
+import org.keycloak.models.KeycloakSession;
+import org.keycloak.models.KeycloakSessionFactory;
+
+public class ScimResourceProviderFactory implements JpaEntityProviderFactory {
+    final static String ID ="scim-resource";
+    @Override
+    public void close() {
+    }
+
+    @Override
+    public JpaEntityProvider create(KeycloakSession session) {
+        return new ScimResourceProvider();
+    }
+
+    @Override
+    public String getId() {
+        return ID;
+    }
+
+    @Override
+    public void init(Scope scope) {
+    }
+
+    @Override
+    public void postInit(KeycloakSessionFactory sessionFactory) {
+    }
+}
diff --git a/src/main/resources/META-INF/scim-resource-changelog.xml b/src/main/resources/META-INF/scim-resource-changelog.xml
new file mode 100644
index 0000000000000000000000000000000000000000..954a44acb8eb0f9924b1920635f3c7543184137a
--- /dev/null
+++ b/src/main/resources/META-INF/scim-resource-changelog.xml
@@ -0,0 +1,27 @@
+<?xml version="1.0" encoding="UTF-8" standalone="no"?>
+<databaseChangeLog xmlns="http://www.liquibase.org/xml/ns/dbchangelog" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://www.liquibase.org/xml/ns/dbchangelog http://www.liquibase.org/xml/ns/dbchangelog/dbchangelog-3.1.xsd">
+    <changeSet author="contact@indiehosters.net" id="scim-resource-1.0">
+
+        <createTable tableName="SCIM_RESOURCE">
+            <column name="REALM_ID" type="VARCHAR(36)">
+                <constraints nullable="false" />
+            </column>
+            <column name="SERVICE_PROVIDER" type="VARCHAR(36)">
+                <constraints nullable="false" />
+            </column>
+            <column name="TYPE" type="VARCHAR(36)">
+                <constraints nullable="false" />
+            </column>
+            <column name="REMOTE_ID" type="VARCHAR(36)">
+                <constraints nullable="false" />
+            </column>
+            <column name="LOCAL_ID" type="VARCHAR(36)">
+                <constraints nullable="false" />
+            </column>
+        </createTable>
+
+        <addPrimaryKey constraintName="PK_SCIM_RESOURCE" tableName="SCIM_RESOURCE" columnNames="REALM_ID,SERVICE_PROVIDER,TYPE,REMOTE_ID" />
+
+    </changeSet>
+
+</databaseChangeLog>
\ No newline at end of file
diff --git a/src/main/resources/META-INF/services/org.keycloak.connections.jpa.entityprovider.JpaEntityProviderFactory b/src/main/resources/META-INF/services/org.keycloak.connections.jpa.entityprovider.JpaEntityProviderFactory
new file mode 100644
index 0000000000000000000000000000000000000000..b3cb1a13e34435fc9114e7cd02ab77d87b3c6871
--- /dev/null
+++ b/src/main/resources/META-INF/services/org.keycloak.connections.jpa.entityprovider.JpaEntityProviderFactory
@@ -0,0 +1 @@
+sh.libre.scim.jpa.ScimResourceProviderFactory
diff --git a/src/main/resources/META-INF/services/org.keycloak.events.EventListenerProviderFactory b/src/main/resources/META-INF/services/org.keycloak.events.EventListenerProviderFactory
new file mode 100644
index 0000000000000000000000000000000000000000..7e2a6edd9cccb0c544c7d6b9fbd65ffc3ff7324a
--- /dev/null
+++ b/src/main/resources/META-INF/services/org.keycloak.events.EventListenerProviderFactory
@@ -0,0 +1 @@
+sh.libre.scim.event.ScimEventListenerProviderFactory