diff --git a/packages/backend/src/apps/index.ts b/packages/backend/src/apps/index.ts
index 74c9a104c0..285f2a2604 100644
--- a/packages/backend/src/apps/index.ts
+++ b/packages/backend/src/apps/index.ts
@@ -9,6 +9,7 @@ import formsgApp from './formsg'
 import gathersgApp from './gathersg'
 import lettersgApp from './lettersg'
 import m365ExcelApp from './m365-excel'
+import pairApp from './pair'
 import paysgApp from './paysg'
 import postmanApp from './postman'
 import postmanSmsApp from './postman-sms'
@@ -42,6 +43,7 @@ const apps: Record<string, IApp> = {
   [webhookApp.key]: webhookApp,
   [aisayApp.key]: aisayApp,
   [gathersgApp.key]: gathersgApp,
+  [pairApp.key]: pairApp,
 }
 
 export default apps
diff --git a/packages/backend/src/apps/pair/actions/call-pair/index.ts b/packages/backend/src/apps/pair/actions/call-pair/index.ts
new file mode 100644
index 0000000000..71e9156264
--- /dev/null
+++ b/packages/backend/src/apps/pair/actions/call-pair/index.ts
@@ -0,0 +1,84 @@
+import { IRawAction } from '@plumber/types'
+
+import { fromZodError } from 'zod-validation-error'
+
+import generateText from '@/apps/pair/common/generateText'
+import StepError, { GenericSolution } from '@/errors/step'
+
+import { schema } from './schema'
+
+const action: IRawAction = {
+  name: 'Pair',
+  key: 'callPair',
+  description:
+    'Enter a custom prompt to summarise, categorise or analyse data with Pair',
+  arguments: [
+    // TODO (kevinkim-ogp): each option should link to a different
+    // default value for the prompt. update when the default value is provided
+    {
+      label: 'What would you like to do?',
+      key: 'promptType',
+      type: 'dropdown' as const,
+      required: true,
+      options: [
+        { label: 'Analyse', value: 'analyse' },
+        { label: 'Categorise', value: 'categorise' },
+        { label: 'Summarise', value: 'summarise' },
+        { label: 'Write', value: 'write' },
+        {
+          label: 'Custom prompt',
+          value: 'custom',
+          description: 'Do it yourself',
+        },
+      ],
+      showOptionValue: false,
+    },
+    {
+      label: 'Prompt',
+      key: 'prompt',
+      type: 'rich-text' as const,
+      required: true,
+      variables: true,
+      customRteMenuOptions: [
+        'Bold',
+        'Italic',
+        'Underline',
+        'divider', // specify when to show a divider
+        'Heading 1',
+        'Heading 2',
+        'Heading 3',
+        'Heading 4',
+        'Bullet List',
+        'Ordered List',
+        'divider',
+        'Undo',
+        'Redo',
+      ],
+      returnMarkdown: true,
+    },
+  ],
+
+  async run($) {
+    const validatedParameters = schema.safeParse($.step.parameters)
+
+    if (!validatedParameters.success) {
+      const firstError = fromZodError(validatedParameters.error).details[0]
+      throw new StepError(
+        firstError.message,
+        GenericSolution.ReconfigureInvalidField,
+        $.step.position,
+        $.app.name,
+      )
+    }
+
+    const { prompt } = validatedParameters.data
+
+    const response = await generateText(prompt, $)
+
+    $.setActionItem({
+      raw: { data: response },
+    })
+  },
+}
+
+export default action
diff --git a/packages/backend/src/apps/pair/actions/call-pair/schema.ts b/packages/backend/src/apps/pair/actions/call-pair/schema.ts
new file mode 100644
index 0000000000..8971ad9726
--- /dev/null
+++ b/packages/backend/src/apps/pair/actions/call-pair/schema.ts
@@ -0,0 +1,9 @@
+import z from 'zod/v3'
+
+export const schema = z.object({
+  promptType: z.enum(['analyse', 'categorise', 'summarise', 'write', 'custom']),
+  prompt: z.string().min(1),
+  responseFormat: z
+    .enum(['singleField', 'multipleFields'])
+    .default('singleField'),
+})
diff --git a/packages/backend/src/apps/pair/actions/index.ts b/packages/backend/src/apps/pair/actions/index.ts
new file mode 100644
index 0000000000..324dc6458d
--- /dev/null
+++ b/packages/backend/src/apps/pair/actions/index.ts
@@ -0,0 +1,3 @@
+import callPair from './call-pair'
+
+export default [callPair]
diff --git a/packages/backend/src/apps/pair/assets/favicon.svg b/packages/backend/src/apps/pair/assets/favicon.svg
new file mode 100644
index 0000000000..7bf2196061
--- /dev/null
+++ b/packages/backend/src/apps/pair/assets/favicon.svg
@@ -0,0 +1,4 @@
+<svg width="120" height="120" viewBox="0 0 120 120" fill="none" xmlns="http://www.w3.org/2000/svg">
+<path fill-rule="evenodd" clip-rule="evenodd" d="M38.8114 6.91406C20.0637 6.91406 4.86572 21.8229 4.86572 40.2138V61.8402V68.1856V114.896C4.86572 118.874 10.1464 120.409 12.3554 117.072L31.0228 100.605C33.5238 101.181 36.1313 101.485 38.8114 101.485H79.2005C97.9482 101.485 113.146 86.5765 113.146 68.1856V40.2138C113.146 21.8229 97.9482 6.91406 79.2005 6.91406H38.8114Z" fill="#072A69"/>
+<path d="M73.7108 47.3004C73.7108 41.6956 68.9012 37.7393 59.6645 37.7393H44.3066L44.4706 39.9372L46.2195 40.157C48.0231 40.3768 48.2964 40.6515 48.2964 41.1461V68.6205C48.2964 69.2249 47.8045 69.4997 46.4382 69.6645L44.4706 69.8843L44.3066 72.0823H60.3204L60.1564 69.8843L57.533 69.6645C55.8934 69.4997 55.5108 69.2249 55.5108 68.7304V58.3451C56.6586 58.455 58.0249 58.5649 59.2273 58.5649C66.8789 58.5649 73.7108 54.5536 73.7108 47.3004ZM65.8952 48.2345C65.8952 53.015 63.0531 56.2021 58.954 56.2021C57.7516 56.2021 56.6039 56.0372 55.5108 55.8174V40.0471H58.5715C63.2171 40.0471 65.8952 43.2891 65.8952 48.2345Z" fill="#F7F9FB"/>
+</svg>
diff --git a/packages/backend/src/apps/pair/common/generateText.ts b/packages/backend/src/apps/pair/common/generateText.ts
new file mode 100644
index 0000000000..798bc79f72
--- /dev/null
+++ b/packages/backend/src/apps/pair/common/generateText.ts
@@ -0,0 +1,63 @@
+import { IGlobalVariable } from '@plumber/types'
+
+import { startActiveObservation } from '@langfuse/tracing'
+import { generateText as AiSdkGenerateText } from 'ai'
+
+import appConfig from '@/config/app'
+import logger from '@/helpers/logger'
+import { model, MODEL_TYPE } from '@/helpers/pair'
+
+async function generateText(prompt: string, $: IGlobalVariable) {
+  try {
+    const result = await startActiveObservation(
+      'pair-action-generate-text',
+      async (trace) => {
+        trace.updateTrace({
+          userId: $.user.email,
+          environment: appConfig.appEnv,
+          tags: ['pair', 'action', 'generate-text'],
+        })
+
+        trace.update({ input: prompt })
+
+        const generation = trace.startObservation(
+          'pair-action-generate-text',
+          {
+            model: MODEL_TYPE,
+            input: [{ role: 'user', content: prompt as string }],
+          },
+          { asType: 'generation' },
+        )
+
+        const { text } = await AiSdkGenerateText({
+          model,
+          prompt: [{ role: 'user', content: prompt as string }],
+          experimental_telemetry: {
+            isEnabled: true,
+            functionId: 'pair-action-generate-text',
+            metadata: {
+              userId: $.user.email,
+            },
+          },
+        })
+
+        trace.update({ output: text })
+
+        generation.update({ output: text }).end()
+
+        return text
+      },
+    )
+
+    return result
+  } catch (error) {
+    logger.error('Failed to generate text', {
+      error: error,
+      user: $.user.email,
+    })
+    throw error
+  }
+  return ''
+}
+
+export default generateText
diff --git a/packages/backend/src/apps/pair/index.ts b/packages/backend/src/apps/pair/index.ts
new file mode 100644
index 0000000000..49d078b3c3
--- /dev/null
+++ b/packages/backend/src/apps/pair/index.ts
@@ -0,0 +1,18 @@
+import { IApp } from '@plumber/types'
+
+import actions from './actions'
+
+const app: IApp = {
+  name: 'Pair',
+  key: 'pair',
+  description: 'Summarise, categorise or analyse data with Pair',
+  iconUrl: '{BASE_URL}/apps/pair/assets/favicon.svg',
+  authDocUrl: '',
+  baseUrl: '',
+  apiBaseUrl: '',
+  primaryColor: '',
+  actions,
+  category: 'ai',
+}
+
+export default app
diff --git a/packages/backend/src/graphql/queries/get-apps.ts b/packages/backend/src/graphql/queries/get-apps.ts
index 37b6ec8659..2ab95672c6 100644
--- a/packages/backend/src/graphql/queries/get-apps.ts
+++ b/packages/backend/src/graphql/queries/get-apps.ts
@@ -9,6 +9,7 @@ import formsgApp from '@/apps/formsg/'
 import gathersgApp from '@/apps/gathersg'
 import lettersgApp from '@/apps/lettersg'
 import m365ExcelApp from '@/apps/m365-excel'
+import pairApp from '@/apps/pair'
 import paysgApp from '@/apps/paysg'
 import postmanApp from '@/apps/postman'
 import postmanSmsApp from '@/apps/postman-sms'
@@ -52,6 +53,7 @@ export const ACTION_APPS_RANKING = [
   postmanSmsApp.key,
   telegramBotApp.key,
   slackApp.key,
+  pairApp.key,
   aisayApp.key,
   gathersgApp.key,
   customApiApp.key,