diff --git a/.gitignore b/.gitignore
new file mode 100644
index 0000000..491fc35
--- /dev/null
+++ b/.gitignore
@@ -0,0 +1,2 @@
+node_modules
+lib
diff --git a/package.json b/package.json
index 9068635..7cc48af 100644
--- a/package.json
+++ b/package.json
@@ -1,8 +1,7 @@
 {
 	"name": "oohost.js",
-	"version": "0.0.1",
+	"version": "0.0.2",
 	"description": "TypeScript library for accessing the oohost API",
-	"main": "src/index.ts",
 	"license": "MIT",
 	"author": "oohost.cz",
 	"repository": {
@@ -13,5 +12,11 @@
 		"oohost",
 		"webhosting",
 		"api"
-	]
+	],
+	"main": "./lib/index.js",
+	"types": "./lib/index.d.ts",
+	"devDependencies": {
+		"@types/node": "^20.14.9",
+		"typescript": "^5.5.2"
+	}
 }
diff --git a/src/API.ts b/src/API.ts
index 0217070..c38d938 100644
--- a/src/API.ts
+++ b/src/API.ts
@@ -1,7 +1,7 @@
 /**
  * Class for requesting API
  */
-export default class API {
+export class API {
 
 	/**
 	 * Default API endpoint
diff --git a/src/index.ts b/src/index.ts
index 89ced82..1b58939 100644
--- a/src/index.ts
+++ b/src/index.ts
@@ -1,3 +1,4 @@
-import API from "./API";
-
-export { API };
+export * from "./API";
+export * from "./models/Base";
+export * from "./models/User";
+export * from "./models/Certificate";
diff --git a/src/models/Base.ts b/src/models/Base.ts
new file mode 100644
index 0000000..3594813
--- /dev/null
+++ b/src/models/Base.ts
@@ -0,0 +1,4 @@
+import { Response } from "../API";
+
+export type PromisedData<T> = Promise<Data<T>>;
+export type Data<T> = [T | null, Response.ExtendedError[]];
diff --git a/src/models/Certificate.ts b/src/models/Certificate.ts
new file mode 100644
index 0000000..f44a587
--- /dev/null
+++ b/src/models/Certificate.ts
@@ -0,0 +1,53 @@
+import { API, Response } from "../API";
+import { PromisedData } from "./Base";
+import { UserInclude } from "./User";
+
+export class Certificate {
+
+	public readonly id: number;
+
+	constructor(id: number) {
+		this.id = id;
+	}
+
+	public async getDetails(): PromisedData<CertificateDetails> {
+		let r = await API.get("certs/details", {id: this.id});
+		return [ r.get().details ?? null, r.get_errors() ];
+	}
+
+	public async remove(): Promise<Response> {
+		return await API.get("certs/remove", {id: this.id});
+	}
+
+	public async generate(domains: string): Promise<Response> {
+		return await API.get("certs/generate", {id: this.id, domains});
+	}
+
+	public async edit(data: CertificateEdit): Promise<Response> {
+		return await API.get("certs/edit", {id: this.id, ...data});
+	}
+
+}
+
+export interface CertificateEdit {
+	name?: string,
+	private_key?: string,
+	certificate?: string
+}
+
+export interface CertificateListItem {
+	id: number,
+	name: string,
+	domain: string,
+	auto_renew: boolean,
+	expiration_date: string,
+	created_at: string,
+	updated_at: string,
+	user_id: number,
+	User: UserInclude
+}
+
+export interface CertificateDetails extends CertificateListItem {
+	private_key: string,
+	certificate: string
+}
diff --git a/src/models/User.ts b/src/models/User.ts
new file mode 100644
index 0000000..429da9b
--- /dev/null
+++ b/src/models/User.ts
@@ -0,0 +1,6 @@
+export interface UserInclude {
+	id: number,
+	username: string,
+	name: string,
+	email: string
+}
diff --git a/tsconfig.json b/tsconfig.json
new file mode 100644
index 0000000..13df6df
--- /dev/null
+++ b/tsconfig.json
@@ -0,0 +1,12 @@
+{
+	"compilerOptions": {
+		"target": "esnext",
+		"strict": true,
+		"moduleResolution": "node",
+		"esModuleInterop": true,
+		"forceConsistentCasingInFileNames": true,
+		"declaration": true,
+		"outDir": "./lib"
+	},
+	"include": ["src"]
+}