diff --git a/.gitignore b/.gitignore
new file mode 100644
index 0000000..f0cfb71
--- /dev/null
+++ b/.gitignore
@@ -0,0 +1,77 @@
+env.dart
+.vscode
+
+# Miscellaneous
+*.class
+*.log
+*.pyc
+*.swp
+.DS_Store
+.atom/
+.buildlog/
+.history
+.svn/
+
+# IntelliJ related
+*.iml
+*.ipr
+*.iws
+.idea/
+
+# The .vscode folder contains launch configuration and tasks you configure in
+# VS Code which you may wish to be included in version control, so this line
+# is commented out by default.
+#.vscode/
+
+# Flutter/Dart/Pub related
+**/doc/api/
+.dart_tool/
+.flutter-plugins
+.flutter-plugins-dependencies
+.packages
+.pub-cache/
+.pub/
+build/
+
+# Android related
+**/android/**/gradle-wrapper.jar
+**/android/.gradle
+**/android/captures/
+**/android/gradlew
+**/android/gradlew.bat
+**/android/local.properties
+**/android/**/GeneratedPluginRegistrant.java
+
+# iOS/XCode related
+**/ios/**/*.mode1v3
+**/ios/**/*.mode2v3
+**/ios/**/*.moved-aside
+**/ios/**/*.pbxuser
+**/ios/**/*.perspectivev3
+**/ios/**/*sync/
+**/ios/**/.sconsign.dblite
+**/ios/**/.tags*
+**/ios/**/.vagrant/
+**/ios/**/DerivedData/
+**/ios/**/Icon?
+**/ios/**/Pods/
+**/ios/**/.symlinks/
+**/ios/**/profile
+**/ios/**/xcuserdata
+**/ios/.generated/
+**/ios/Flutter/App.framework
+**/ios/Flutter/Flutter.framework
+**/ios/Flutter/Flutter.podspec
+**/ios/Flutter/Generated.xcconfig
+**/ios/Flutter/app.flx
+**/ios/Flutter/app.zip
+**/ios/Flutter/flutter_assets/
+**/ios/Flutter/flutter_export_environment.sh
+**/ios/ServiceDefinitions.json
+**/ios/Runner/GeneratedPluginRegistrant.*
+
+# Exceptions to above rules.
+!**/ios/**/default.mode1v3
+!**/ios/**/default.mode2v3
+!**/ios/**/default.pbxuser
+!**/ios/**/default.perspectivev3
diff --git a/.metadata b/.metadata
new file mode 100644
index 0000000..89d95f1
--- /dev/null
+++ b/.metadata
@@ -0,0 +1,10 @@
+# This file tracks properties of this Flutter project.
+# Used by Flutter tool to assess capabilities and perform upgrades etc.
+#
+# This file should be version controlled and should not be manually edited.
+
+version:
+  revision: adc687823a831bbebe28bdccfac1a628ca621513
+  channel: stable
+
+project_type: package
diff --git a/CHANGELOG.md b/CHANGELOG.md
new file mode 100644
index 0000000..246aaca
--- /dev/null
+++ b/CHANGELOG.md
@@ -0,0 +1,11 @@
+# Changelog
+## v0.0.1-prealpha1
+> Release date: 20/May/2021
+
+* First version
+* Add `page` requests parameters models
+* Add notion api endpoints: `pages`
+  * Retrieve a page
+  * Create a page
+    * Note: Accept only basic content: `title` & `parent`.
+* Add `database` tests
\ No newline at end of file
diff --git a/LICENSE b/LICENSE
new file mode 100644
index 0000000..ba75c69
--- /dev/null
+++ b/LICENSE
@@ -0,0 +1 @@
+TODO: Add your license here.
diff --git a/README.md b/README.md
new file mode 100644
index 0000000..a6b1593
--- /dev/null
+++ b/README.md
@@ -0,0 +1,26 @@
+Notion API client for dart.
+
+## Using
+You only have to create a new instance of the NotionClient class and all the API requests will be available as class methods.
+> Note: Maybe they will be separated onto separated classes, idk yet.
+```dart
+NotionClient notion = NotionClient(token: 'YOUR SECRET TOKEN FROM INTEGRATIONS PAGE');
+```
+
+### Methods
+`20/May/2021`: The methods return a `http.Response`. You can find how to use it in its [documentation][1].
+
+#### Creating pages
+```dart
+Page page = Page(databaseId: 'YOUR DATABASE ID');
+page.title = Text(content: 'The title of the new page');
+
+notion.createPage(page);
+```
+
+#### Retrieving pages
+```dart
+notion.retrievePage(test_page_id);
+```
+
+[1]:https://pub.dev/documentation/http/latest/http/Response-class.html
\ No newline at end of file
diff --git a/ROADMAP.md b/ROADMAP.md
new file mode 100644
index 0000000..e37d5fe
--- /dev/null
+++ b/ROADMAP.md
@@ -0,0 +1,39 @@
+# Roadmap
+## v0.0.1-prealpha1: ✅
+> Release date: 20/May/2021
+
+* First version
+* Add `page` requests parameters models
+* Add notion api endpoints: `pages`
+  * Retrieve a page
+  * Create a page
+    * Note: Accept only basic content: `title` & `parent`.
+* Add `database` tests
+
+## v0.0.1-prealpha2:
+> Release date: 24/May/2021
+* Return data response directly instead of `http.Response`
+* Manage http calls errors
+
+## v0.0.1-prealpha3:
+> Release date: 26/May/2021
+* Add `database` request parameters models
+* Add notion api endpoints: `databases`
+  * Retrieve a database
+  * Query a database
+  * List databases
+* Add `database` tests
+
+## v0.0.1-prealpha4:
+> Release date: 28/May/2021
+* Add `block children` request parameters models
+* Add notion api endpoints: `block children`
+  * Retrieve block children
+  * Append block children
+* Add `block children` tests
+
+## v0.0.1-beta1:
+> Release date: 28/May/2021
+* Improve testing
+
+### More coming soon.
\ No newline at end of file
diff --git a/lib/client.dart b/lib/client.dart
new file mode 100644
index 0000000..db355ba
--- /dev/null
+++ b/lib/client.dart
@@ -0,0 +1,34 @@
+library notion_api;
+
+import 'dart:convert';
+
+import 'package:flutter/material.dart' show required;
+import 'package:http/http.dart' as http;
+import 'package:notion_api/models/pages.dart';
+
+/// A Notion API.
+class NotionClient {
+  String _token;
+  String _url = 'https://api.notion.com/v1';
+
+  NotionClient({@required token}) : this._token = token;
+
+  Future<http.Response> retrievePage(String id) async {
+    return await http.get(Uri.parse('$_url/pages/$id'), headers: {
+      'Authorization': 'Bearer $_token',
+    });
+  }
+
+  /// Create a new page
+  Future<http.Response> createPage(Page page) async {
+    return await http.post(Uri.parse('$_url/pages'),
+        body: jsonEncode(page.toJson()),
+        headers: {
+          'Authorization': 'Bearer $_token',
+          'Content-Type': 'application/json; charset=UTF-8',
+        });
+  }
+
+  /// Returns [value] plus 1.
+  int addOne(int value) => value + 1;
+}
diff --git a/lib/models/objects.dart b/lib/models/objects.dart
new file mode 100644
index 0000000..77217ae
--- /dev/null
+++ b/lib/models/objects.dart
@@ -0,0 +1,4 @@
+enum NotionObjects {
+  user,
+  database,
+}
diff --git a/lib/models/pages.dart b/lib/models/pages.dart
new file mode 100644
index 0000000..709ded6
--- /dev/null
+++ b/lib/models/pages.dart
@@ -0,0 +1,41 @@
+import 'dart:convert';
+
+import 'package:flutter/material.dart' show required;
+import 'package:notion_api/models/rich_text.dart';
+
+class Page {
+  final PageParent parent = PageParent();
+  final PageProperties properties = PageProperties();
+  final PageChildren children = PageChildren();
+
+  Page({@required databaseId}) {
+    this.parent.databaseId = databaseId;
+  }
+
+  set title(RichText value) => properties.title.add(value ?? Text(content: ''));
+
+  Map<String, dynamic> toJson() => {
+        'parent': this.parent.toJson(),
+        'properties': this.properties.toJson(),
+      };
+}
+
+class PageParent {
+  String databaseId;
+
+  toJson() => {
+        'database_id': databaseId,
+      };
+}
+
+class PageProperties {
+  List<RichText> title = [];
+
+  toJson() => {
+        'title': {
+          'title': title.map((e) => e.toJson()).toList(),
+        },
+      };
+}
+
+class PageChildren {}
diff --git a/lib/models/rich_text.dart b/lib/models/rich_text.dart
new file mode 100644
index 0000000..fd2c96a
--- /dev/null
+++ b/lib/models/rich_text.dart
@@ -0,0 +1,70 @@
+import 'package:notion_api/models/users.dart';
+
+enum RichTextType {
+  mention,
+  text,
+  equation,
+  url,
+}
+
+enum RichTextColors {
+  gray,
+  brown,
+  orange,
+  yellow,
+}
+
+class RichTextAnnotations {
+  bool bold;
+  bool italic;
+  bool strikethrough;
+  bool underline;
+  bool code;
+  RichTextColors color;
+}
+
+class RichText {
+  String plainText;
+  String href;
+  RichTextAnnotations annotations;
+  RichTextType type;
+
+  toJson() => {
+        'plain_text': plainText,
+        'href': href,
+        'annotations': annotations,
+        'type': type,
+      };
+}
+
+class Text extends RichText {
+  String content;
+
+  Text({content}) : this.content = content;
+
+  toJson() {
+    Map<String, dynamic> json = super.toJson();
+    json['text'] = {
+      'content': content,
+    };
+    json.removeWhere((key, value) => value == null);
+    return json;
+  }
+}
+
+class Link extends Text {
+  RichTextType type = RichTextType.url;
+  String url;
+}
+
+class Mention extends RichText {
+  RichTextType type = RichTextType.mention;
+}
+
+class UserMention extends Mention {
+  PeopleUser user;
+}
+
+class Equation extends RichText {
+  String expression;
+}
diff --git a/lib/models/users.dart b/lib/models/users.dart
new file mode 100644
index 0000000..fdf3db4
--- /dev/null
+++ b/lib/models/users.dart
@@ -0,0 +1,24 @@
+import 'package:notion_api/models/objects.dart';
+
+enum UserType {
+  person,
+  bot,
+}
+
+class User {
+  NotionObjects object = NotionObjects.user;
+  String id;
+  UserType type;
+  String name;
+  String avatar_url;
+}
+
+class _People {
+  String email;
+}
+
+class PeopleUser extends User {
+  _People people;
+}
+
+class BotUser extends User {}
diff --git a/pubspec.lock b/pubspec.lock
new file mode 100644
index 0000000..34b2850
--- /dev/null
+++ b/pubspec.lock
@@ -0,0 +1,168 @@
+# Generated by pub
+# See https://dart.dev/tools/pub/glossary#lockfile
+packages:
+  async:
+    dependency: transitive
+    description:
+      name: async
+      url: "https://pub.dartlang.org"
+    source: hosted
+    version: "2.5.0"
+  boolean_selector:
+    dependency: transitive
+    description:
+      name: boolean_selector
+      url: "https://pub.dartlang.org"
+    source: hosted
+    version: "2.1.0"
+  characters:
+    dependency: transitive
+    description:
+      name: characters
+      url: "https://pub.dartlang.org"
+    source: hosted
+    version: "1.1.0"
+  charcode:
+    dependency: transitive
+    description:
+      name: charcode
+      url: "https://pub.dartlang.org"
+    source: hosted
+    version: "1.2.0"
+  clock:
+    dependency: transitive
+    description:
+      name: clock
+      url: "https://pub.dartlang.org"
+    source: hosted
+    version: "1.1.0"
+  collection:
+    dependency: transitive
+    description:
+      name: collection
+      url: "https://pub.dartlang.org"
+    source: hosted
+    version: "1.15.0"
+  fake_async:
+    dependency: transitive
+    description:
+      name: fake_async
+      url: "https://pub.dartlang.org"
+    source: hosted
+    version: "1.2.0"
+  flutter:
+    dependency: "direct main"
+    description: flutter
+    source: sdk
+    version: "0.0.0"
+  flutter_test:
+    dependency: "direct dev"
+    description: flutter
+    source: sdk
+    version: "0.0.0"
+  http:
+    dependency: "direct main"
+    description:
+      name: http
+      url: "https://pub.dartlang.org"
+    source: hosted
+    version: "0.13.3"
+  http_parser:
+    dependency: transitive
+    description:
+      name: http_parser
+      url: "https://pub.dartlang.org"
+    source: hosted
+    version: "4.0.0"
+  matcher:
+    dependency: transitive
+    description:
+      name: matcher
+      url: "https://pub.dartlang.org"
+    source: hosted
+    version: "0.12.10"
+  meta:
+    dependency: transitive
+    description:
+      name: meta
+      url: "https://pub.dartlang.org"
+    source: hosted
+    version: "1.3.0"
+  path:
+    dependency: transitive
+    description:
+      name: path
+      url: "https://pub.dartlang.org"
+    source: hosted
+    version: "1.8.0"
+  pedantic:
+    dependency: transitive
+    description:
+      name: pedantic
+      url: "https://pub.dartlang.org"
+    source: hosted
+    version: "1.11.0"
+  sky_engine:
+    dependency: transitive
+    description: flutter
+    source: sdk
+    version: "0.0.99"
+  source_span:
+    dependency: transitive
+    description:
+      name: source_span
+      url: "https://pub.dartlang.org"
+    source: hosted
+    version: "1.8.0"
+  stack_trace:
+    dependency: transitive
+    description:
+      name: stack_trace
+      url: "https://pub.dartlang.org"
+    source: hosted
+    version: "1.10.0"
+  stream_channel:
+    dependency: transitive
+    description:
+      name: stream_channel
+      url: "https://pub.dartlang.org"
+    source: hosted
+    version: "2.1.0"
+  string_scanner:
+    dependency: transitive
+    description:
+      name: string_scanner
+      url: "https://pub.dartlang.org"
+    source: hosted
+    version: "1.1.0"
+  term_glyph:
+    dependency: transitive
+    description:
+      name: term_glyph
+      url: "https://pub.dartlang.org"
+    source: hosted
+    version: "1.2.0"
+  test_api:
+    dependency: transitive
+    description:
+      name: test_api
+      url: "https://pub.dartlang.org"
+    source: hosted
+    version: "0.2.19"
+  typed_data:
+    dependency: transitive
+    description:
+      name: typed_data
+      url: "https://pub.dartlang.org"
+    source: hosted
+    version: "1.3.0"
+  vector_math:
+    dependency: transitive
+    description:
+      name: vector_math
+      url: "https://pub.dartlang.org"
+    source: hosted
+    version: "2.1.0"
+sdks:
+  dart: ">=2.12.0 <3.0.0"
+  flutter: ">=1.17.0"
diff --git a/pubspec.yaml b/pubspec.yaml
new file mode 100644
index 0000000..b045748
--- /dev/null
+++ b/pubspec.yaml
@@ -0,0 +1,54 @@
+name: notion_api
+description: Notion API client for dart.
+version: 0.0.1-prealpha1
+author: Jonathan Gómez
+
+environment:
+  sdk: ">=2.7.0 <3.0.0"
+  flutter: ">=1.17.0"
+
+dependencies:
+  flutter:
+    sdk: flutter
+  http: ^0.13.3
+
+dev_dependencies:
+  flutter_test:
+    sdk: flutter
+
+# For information on the generic Dart part of this file, see the
+# following page: https://dart.dev/tools/pub/pubspec
+
+# The following section is specific to Flutter.
+flutter:
+
+  # To add assets to your package, add an assets section, like this:
+  # assets:
+  #   - images/a_dot_burr.jpeg
+  #   - images/a_dot_ham.jpeg
+  #
+  # For details regarding assets in packages, see
+  # https://flutter.dev/assets-and-images/#from-packages
+  #
+  # An image asset can refer to one or more resolution-specific "variants", see
+  # https://flutter.dev/assets-and-images/#resolution-aware.
+
+  # To add custom fonts to your package, add a fonts section here,
+  # in this "flutter" section. Each entry in this list should have a
+  # "family" key with the font family name, and a "fonts" key with a
+  # list giving the asset and other descriptors for the font. For
+  # example:
+  # fonts:
+  #   - family: Schyler
+  #     fonts:
+  #       - asset: fonts/Schyler-Regular.ttf
+  #       - asset: fonts/Schyler-Italic.ttf
+  #         style: italic
+  #   - family: Trajan Pro
+  #     fonts:
+  #       - asset: fonts/TrajanPro.ttf
+  #       - asset: fonts/TrajanPro_Bold.ttf
+  #         weight: 700
+  #
+  # For details regarding fonts in packages, see
+  # https://flutter.dev/custom-fonts/#from-packages
diff --git a/test/notion_api_test.dart b/test/notion_api_test.dart
new file mode 100644
index 0000000..b5d58cf
--- /dev/null
+++ b/test/notion_api_test.dart
@@ -0,0 +1,27 @@
+import 'package:flutter_test/flutter_test.dart';
+import 'package:notion_api/models/pages.dart';
+import 'package:notion_api/models/rich_text.dart';
+import 'package:notion_api/client.dart';
+
+import '../env.dart';
+
+void main() {
+  group('Pages', () {
+    test('Create a page', () async {
+      final NotionClient notion = NotionClient(token: token);
+
+      final Page page = Page(databaseId: test_database_id);
+      page.title = Text(content: 'Page from Test');
+
+      var res = await notion.createPage(page);
+
+      expect(res.statusCode, 200);
+    });
+
+    test('Retrieve a page', () async {
+      final NotionClient notion = NotionClient(token: token);
+      var res = await notion.retrievePage(test_page_id);
+      expect(res.statusCode, 200);
+    });
+  });
+}