diff --git a/schemas/src/Backend/Provider/SslCertProviders/ISslCertProvider.ts b/schemas/src/Backend/Provider/SslCertProviders/ISslCertProvider.ts
new file mode 100644
index 00000000..b0404fdf
--- /dev/null
+++ b/schemas/src/Backend/Provider/SslCertProviders/ISslCertProvider.ts
@@ -0,0 +1,50 @@
+import {SslCertBundel} from './SslCertBundel.js';
+import {SslCertCreateOptions} from "./SslCertCreateOptions.js";
+
+/**
+ * The ssl certificate provider interface.
+ */
+export interface ISslCertProvider {
+
+    /**
+     * Return the keyname for provider as ident.
+     * @returns {string}
+     */
+    getName(): string;
+
+    /**
+     * Return the title for provider (for frontend).
+     * @returns {string}
+     */
+    getTitle(): string;
+
+    /**
+     * Is provider ready for the request by last request try.
+     * @param {number} lastRequest - Timestamp from last request.
+     * @param {number} tryCounst - Count by trys.
+     * @returns {boolean} By true the request can start.
+     */
+    isReadyForRequest(lastRequest: number, tryCounst: number): boolean;
+
+    /**
+     * Exist a certificate by domain name.
+     * @param {string} domainName - Name of domain.
+     * @returns {boolean}
+     */
+    existCertificate(domainName: string): Promise<boolean>;
+
+    /**
+     * Return when existed, the certificat bundel (cert, fullchain, privatkey).
+     * @param {string} domainName
+     * @returns {SslCertBundel|null}
+     */
+    getCertificationBundel(domainName: string): Promise<SslCertBundel|null>;
+
+    /**
+     * Create a certificate by provider.
+     * @param {SslCertCreateOptions} options
+     * @returns {boolean}
+     */
+    createCertificate(options: SslCertCreateOptions): Promise<boolean>;
+
+}
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diff --git a/schemas/src/Backend/Provider/SslCertProviders/SslCertBundel.ts b/schemas/src/Backend/Provider/SslCertProviders/SslCertBundel.ts
new file mode 100644
index 00000000..342978d9
--- /dev/null
+++ b/schemas/src/Backend/Provider/SslCertProviders/SslCertBundel.ts
@@ -0,0 +1,30 @@
+/**
+ * Ssl certification bundel.
+ */
+export type SslCertBundel = {
+
+    /**
+     * Certificate pem path.
+     * @member {string}
+     */
+    certPem: string;
+
+    /**
+     * Chain pem path.
+     * @member {string}
+     */
+    chainPem: string;
+
+    /**
+     * Full chain pem path.
+     * @member {string}
+     */
+    fullChainPem: string;
+
+    /**
+     * Privat key pem path.
+     * @member {string}
+     */
+    privatKeyPem: string;
+
+};
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diff --git a/schemas/src/Backend/Provider/SslCertProviders/SslCertCreateOptions.ts b/schemas/src/Backend/Provider/SslCertProviders/SslCertCreateOptions.ts
new file mode 100644
index 00000000..f50dae33
--- /dev/null
+++ b/schemas/src/Backend/Provider/SslCertProviders/SslCertCreateOptions.ts
@@ -0,0 +1,24 @@
+/**
+ * Ssl certification creates options.
+ */
+export type SslCertCreateOptions = {
+
+    /**
+     * The domain name for certificate creation.
+     * @member {string}
+     */
+    domainName: string;
+
+    /**
+     * The email for certificate notification from provider.
+     * @member {string}
+     */
+    email: string;
+
+    /**
+     * Size of a private key, by undefinded is the default 4096.
+     * @member {number}
+     */
+    keySize?: number;
+
+};
\ No newline at end of file