diff --git a/package-lock.json b/package-lock.json
index 7e558688..f8ee1c25 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -9,7 +9,7 @@
         "plugins/*"
       ],
       "dependencies": {
-        "@yaakapp/api": "^0.5.3"
+        "@yaakapp/api": "^0.6.0"
       },
       "devDependencies": {
         "@types/node": "^22.7.4",
@@ -999,9 +999,9 @@
       }
     },
     "node_modules/@yaakapp/api": {
-      "version": "0.5.3",
-      "resolved": "https://registry.npmjs.org/@yaakapp/api/-/api-0.5.3.tgz",
-      "integrity": "sha512-JKO0t5H+wM2KWpNgiNW5UVmk66c7p2WFCHa8TnLwnkFpub/3ktZfMY1Y+c21N2gsurqUe3wmcNRM0J1nQrR9rA==",
+      "version": "0.6.0",
+      "resolved": "https://registry.npmjs.org/@yaakapp/api/-/api-0.6.0.tgz",
+      "integrity": "sha512-7DELi/E5Ayx+lmWSYVhjgE4Ll+hf7IWPnbFMkYhO7G14nk2WIjTeDdoAA3/7XMi5M4cL8+GGsx9mYXmts9YP7g==",
       "dependencies": {
         "@types/node": "^22.5.4"
       }
@@ -1054,6 +1054,14 @@
       "resolved": "plugins/importer-yaak",
       "link": true
     },
+    "node_modules/@yaakapp/template-function-cookie": {
+      "resolved": "plugins/template-function-cookie",
+      "link": true
+    },
+    "node_modules/@yaakapp/template-function-encode": {
+      "resolved": "plugins/template-function-encode",
+      "link": true
+    },
     "node_modules/@yaakapp/template-function-fs": {
       "resolved": "plugins/template-function-fs",
       "link": true
@@ -1066,6 +1074,10 @@
       "resolved": "plugins/template-function-prompt",
       "link": true
     },
+    "node_modules/@yaakapp/template-function-regex": {
+      "resolved": "plugins/template-function-regex",
+      "link": true
+    },
     "node_modules/@yaakapp/template-function-request": {
       "resolved": "plugins/template-function-request",
       "link": true
@@ -7190,6 +7202,14 @@
       "name": "@yaakapp/importer-yaak",
       "version": "0.0.1"
     },
+    "plugins/template-function-cookie": {
+      "name": "@yaakapp/template-function-cookie",
+      "version": "0.0.1"
+    },
+    "plugins/template-function-encode": {
+      "name": "@yaakapp/template-function-encode",
+      "version": "0.0.1"
+    },
     "plugins/template-function-file": {
       "name": "@yaakapp/template-function-file",
       "version": "0.0.1",
@@ -7207,6 +7227,10 @@
       "name": "@yaakapp/template-function-prompt",
       "version": "0.0.1"
     },
+    "plugins/template-function-regex": {
+      "name": "@yaakapp/template-function-regex",
+      "version": "0.0.1"
+    },
     "plugins/template-function-request": {
       "name": "@yaakapp/template-function-request",
       "version": "0.0.1"
diff --git a/package.json b/package.json
index 882533ab..a0da177c 100644
--- a/package.json
+++ b/package.json
@@ -19,6 +19,6 @@
     "workspaces-run": "^1.0.2"
   },
   "dependencies": {
-    "@yaakapp/api": "^0.5.3"
+    "@yaakapp/api": "^0.6.0"
   }
 }
diff --git a/plugins/auth-oauth2/src/index.ts b/plugins/auth-oauth2/src/index.ts
index 731bf291..9026a305 100644
--- a/plugins/auth-oauth2/src/index.ts
+++ b/plugins/auth-oauth2/src/index.ts
@@ -115,7 +115,6 @@ export const plugin: PluginDefinition = {
         label: 'Client ID',
         optional: true,
       },
-
       {
         type: 'text',
         name: 'clientSecret',
diff --git a/plugins/template-function-cookie/package.json b/plugins/template-function-cookie/package.json
new file mode 100644
index 00000000..1473c0b2
--- /dev/null
+++ b/plugins/template-function-cookie/package.json
@@ -0,0 +1,9 @@
+{
+  "name": "@yaakapp/template-function-cookie",
+  "private": true,
+  "version": "0.0.1",
+  "scripts": {
+    "build": "yaakcli build ./src/index.ts",
+    "dev": "yaakcli dev ./src/index.js"
+  }
+}
diff --git a/plugins/template-function-cookie/src/index.ts b/plugins/template-function-cookie/src/index.ts
new file mode 100644
index 00000000..3d39d74c
--- /dev/null
+++ b/plugins/template-function-cookie/src/index.ts
@@ -0,0 +1,20 @@
+import { CallTemplateFunctionArgs, Context, PluginDefinition } from '@yaakapp/api';
+
+export const plugin: PluginDefinition = {
+  templateFunctions: [
+    {
+      name: 'cookie.value',
+      description: 'Read the value of a cookie in the jar, by name',
+      args: [
+        {
+          type: 'text',
+          name: 'cookie_name',
+          label: 'Cookie Name',
+        },
+      ],
+      async onRender(ctx: Context, args: CallTemplateFunctionArgs): Promise<string | null> {
+        return ctx.cookies.getValue({ name: String(args.values.cookie_name) });
+      },
+    },
+  ],
+};
diff --git a/plugins/template-function-encode/package.json b/plugins/template-function-encode/package.json
new file mode 100644
index 00000000..4c261fdc
--- /dev/null
+++ b/plugins/template-function-encode/package.json
@@ -0,0 +1,9 @@
+{
+  "name": "@yaakapp/template-function-encode",
+  "private": true,
+  "version": "0.0.1",
+  "scripts": {
+    "build": "yaakcli build ./src/index.ts",
+    "dev": "yaakcli dev ./src/index.js"
+  }
+}
diff --git a/plugins/template-function-encode/src/index.ts b/plugins/template-function-encode/src/index.ts
new file mode 100644
index 00000000..15bb985b
--- /dev/null
+++ b/plugins/template-function-encode/src/index.ts
@@ -0,0 +1,22 @@
+import { CallTemplateFunctionArgs, Context, PluginDefinition } from '@yaakapp/api';
+
+export const plugin: PluginDefinition = {
+  templateFunctions: [
+    {
+      name: 'base64.encode',
+      description: 'Encode a value to base64',
+      args: [{ label: 'Plain Text', type: 'text', name: 'value', multiLine: true }],
+      async onRender(_ctx: Context, args: CallTemplateFunctionArgs): Promise<string | null> {
+        return Buffer.from(args.values.value ?? '').toString('base64');
+      },
+    },
+    {
+      name: 'base64.decode',
+      description: 'Decode a value from base64',
+      args: [{ label: 'Encoded Value', type: 'text', name: 'value', multiLine: true }],
+      async onRender(_ctx: Context, args: CallTemplateFunctionArgs): Promise<string | null> {
+        return Buffer.from(args.values.value ?? '', 'base64').toString('utf-8');
+      },
+    },
+  ],
+};
diff --git a/plugins/template-function-hash/src/index.ts b/plugins/template-function-hash/src/index.ts
index 9fca36a4..308cb0aa 100755
--- a/plugins/template-function-hash/src/index.ts
+++ b/plugins/template-function-hash/src/index.ts
@@ -1,25 +1,86 @@
 import { CallTemplateFunctionArgs, Context, PluginDefinition } from '@yaakapp/api';
-import { createHash } from 'node:crypto';
+import { createHash, createHmac } from 'node:crypto';
 
-const algorithms = ['md5', 'sha1', 'sha256', 'sha512'];
+const algorithms = ['md5', 'sha1', 'sha256', 'sha512'] as const;
+const encodings = ['base64', 'hex'] as const;
+
+type TemplateFunctionPlugin = NonNullable<PluginDefinition['templateFunctions']>[number];
+
+const hashFunctions: TemplateFunctionPlugin[] = algorithms.map(algorithm => ({
+  name: `hash.${algorithm}`,
+  description: 'Hash a value to its hexidecimal representation',
+  args: [
+    {
+      type: 'text',
+      name: 'input',
+      label: 'Input',
+      placeholder: 'input text',
+      multiLine: true,
+    },
+    {
+      type: 'select',
+      name: 'encoding',
+      label: 'Encoding',
+      defaultValue: 'base64',
+      options: encodings.map(encoding => ({
+        label: capitalize(encoding),
+        value: encoding,
+      })),
+    },
+  ],
+  async onRender(_ctx: Context, args: CallTemplateFunctionArgs): Promise<string | null> {
+    const input = String(args.values.input);
+    const encoding = String(args.values.encoding) as typeof encodings[number];
+
+    return createHash(algorithm)
+      .update(input, 'utf-8')
+      .digest(encoding);
+  },
+}));
+
+const hmacFunctions: TemplateFunctionPlugin[] = algorithms.map(algorithm => ({
+  name: `hmac.${algorithm}`,
+  description: 'Compute the HMAC of a value',
+  args: [
+    {
+      type: 'text',
+      name: 'input',
+      label: 'Input',
+      placeholder: 'input text',
+      multiLine: true,
+    },
+    {
+      type: 'text',
+      name: 'key',
+      label: 'Key',
+      password: true,
+    },
+    {
+      type: 'select',
+      name: 'encoding',
+      label: 'Encoding',
+      defaultValue: 'base64',
+      options: encodings.map(encoding => ({
+        value: encoding,
+        label: capitalize(encoding),
+      })),
+    },
+  ],
+  async onRender(_ctx: Context, args: CallTemplateFunctionArgs): Promise<string | null> {
+    const input = String(args.values.input);
+    const key = String(args.values.key);
+    const encoding = String(args.values.encoding) as typeof encodings[number];
+
+    return createHmac(algorithm, key, {})
+      .update(input)
+      .digest(encoding);
+  },
+}));
 
 export const plugin: PluginDefinition = {
-  templateFunctions: algorithms.map(algorithm => ({
-    name: `hash.${algorithm}`,
-    description: 'Hash a value to its hexidecimal representation',
-    args: [
-      {
-        name: 'input',
-        label: 'Input',
-        placeholder: 'input text',
-        type: 'text',
-      },
-    ],
-    async onRender(_ctx: Context, args: CallTemplateFunctionArgs): Promise<string | null> {
-      if (!args.values.input) return '';
-      return createHash(algorithm)
-        .update(args.values.input, 'utf-8')
-        .digest('hex');
-    },
-  })),
+  templateFunctions: [...hashFunctions, ...hmacFunctions],
 };
+
+function capitalize(str: string): string {
+  return str.charAt(0).toUpperCase() + str.slice(1);
+}
diff --git a/plugins/template-function-regex/package.json b/plugins/template-function-regex/package.json
new file mode 100644
index 00000000..de67316b
--- /dev/null
+++ b/plugins/template-function-regex/package.json
@@ -0,0 +1,9 @@
+{
+  "name": "@yaakapp/template-function-regex",
+  "private": true,
+  "version": "0.0.1",
+  "scripts": {
+    "build": "yaakcli build ./src/index.ts",
+    "dev": "yaakcli dev ./src/index.js"
+  }
+}
diff --git a/plugins/template-function-regex/src/index.ts b/plugins/template-function-regex/src/index.ts
new file mode 100644
index 00000000..a62367cc
--- /dev/null
+++ b/plugins/template-function-regex/src/index.ts
@@ -0,0 +1,28 @@
+import { CallTemplateFunctionArgs, Context, PluginDefinition } from '@yaakapp/api';
+
+export const plugin: PluginDefinition = {
+  templateFunctions: [{
+    name: 'regex.match',
+    description: 'Extract',
+    args: [
+      {
+        type: 'text',
+        name: 'regex',
+        label: 'Regular Expression',
+        placeholder: '^\w+=(?<value>\w*)$',
+        defaultValue: '^(.*)$',
+        description: 'A JavaScript regular expression, evaluated using the Node.js RegExp engine. Capture groups or named groups can be used to extract values.',
+      },
+      { type: 'text', name: 'input', label: 'Input Text', multiLine: true },
+    ],
+    async onRender(_ctx: Context, args: CallTemplateFunctionArgs): Promise<string | null> {
+      if (!args.values.regex) return '';
+
+      const regex = new RegExp(String(args.values.regex));
+      const match = args.values.input?.match(regex);
+      return match?.groups
+        ? Object.values(match.groups)[0] ?? ''
+        : match?.[1] ?? match?.[0] ?? '';
+    },
+  }],
+};