diff --git a/packages/vue/package.json b/packages/vue/package.json
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--- /dev/null
+++ b/packages/vue/package.json
@@ -0,0 +1,12 @@
+{
+  "name": "@tryabby/vue",
+  "version": "0.1.0",
+  "description": "Vue 3 plugin and composables for Abby feature flags, remote config, and A/B testing",
+  "type": "module",
+  "main": "./src/index.ts",
+  "types": "./src/index.ts",
+  "peerDependencies": {
+    "vue": "^3.0.0"
+  },
+  "license": "MIT"
+}
\ No newline at end of file
diff --git a/packages/vue/src/index.ts b/packages/vue/src/index.ts
new file mode 100644
index 00000000..c5fec7d6
--- /dev/null
+++ b/packages/vue/src/index.ts
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+/**
+ * Vue 3 Composable & Plugin Integration for Abby (`@tryabby/vue`)
+ * Bounty: tryabby/abby #68 ($40 USD — Vue Integration @tryabby/vue)
+ *
+ * Provides `createAbbyPlugin`, `useAbby`, `useFeatureFlag`, and `useAbTest`
+ * for Vue 3 applications matching `@tryabby/react`.
+ */
+
+export interface AbbyConfig {
+  projectId: string;
+  currentEnvironment?: string;
+  apiKey?: string;
+  baseUrl?: string;
+  flags?: Record<string, boolean>;
+  tests?: Record<string, { variant: string; payload?: unknown }>;
+  fetchImpl?: typeof fetch;
+}
+
+export interface AbbyStore {
+  projectId: string;
+  environment: string;
+  isReady: boolean;
+  getFlag: (flagKey: string, fallback?: boolean) => boolean;
+  getVariant: (testKey: string, fallbackVariant?: string) => { variant: string; payload?: unknown };
+  trackConversion: (testKey: string, metadata?: Record<string, unknown>) => Promise<void>;
+  refresh: () => Promise<void>;
+}
+
+export const ABBY_INJECTION_KEY = Symbol.for('@tryabby/vue');
+
+export function createAbbyClient(config: AbbyConfig): AbbyStore {
+  const baseUrl = (config.baseUrl || 'https://api.tryabby.com/v1').replace(/\/+$/, '');
+  const environment = config.currentEnvironment || 'production';
+  const fetchImpl = config.fetchImpl || globalThis.fetch;
+
+  const state = {
+    isReady: Boolean(config.flags || config.tests),
+    flags: { ...(config.flags || {}) } as Record<string, boolean>,
+    tests: { ...(config.tests || {}) } as Record<string, { variant: string; payload?: unknown }>,
+  };
+
+  async function refresh() {
+    const res = await fetchImpl(
+      `${baseUrl}/projects/${encodeURIComponent(config.projectId)}/config?env=${encodeURIComponent(environment)}`,
+      {
+        method: 'GET',
+        headers: {
+          Accept: 'application/json',
+          ...(config.apiKey ? { 'x-abby-key': config.apiKey } : {}),
+        },
+      }
+    );
+    if (!res.ok) {
+      throw new Error(`Abby config fetch failed (${res.status})`);
+    }
+    const data = (await res.json()) as {
+      flags?: Record<string, boolean>;
+      tests?: Record<string, { variant: string; payload?: unknown }>;
+    };
+    if (data.flags) Object.assign(state.flags, data.flags);
+    if (data.tests) Object.assign(state.tests, data.tests);
+    state.isReady = true;
+  }
+
+  async function trackConversion(testKey: string, metadata: Record<string, unknown> = {}) {
+    const active = state.tests[testKey];
+    await fetchImpl(`${baseUrl}/projects/${encodeURIComponent(config.projectId)}/conversions`, {
+      method: 'POST',
+      headers: {
+        'Content-Type': 'application/json',
+        ...(config.apiKey ? { 'x-abby-key': config.apiKey } : {}),
+      },
+      body: JSON.stringify({
+        environment,
+        testKey,
+        variant: active?.variant || 'default',
+        metadata,
+      }),
+    });
+  }
+
+  return {
+    projectId: config.projectId,
+    environment,
+    get isReady() {
+      return state.isReady;
+    },
+    getFlag(flagKey: string, fallback = false): boolean {
+      return flagKey in state.flags ? Boolean(state.flags[flagKey]) : fallback;
+    },
+    getVariant(testKey: string, fallbackVariant = 'A') {
+      return state.tests[testKey] || { variant: fallbackVariant };
+    },
+    trackConversion,
+    refresh,
+  };
+}
+
+let activeGlobalStore: AbbyStore | null = null;
+
+export function createAbbyPlugin(config: AbbyConfig) {
+  const store = createAbbyClient(config);
+  activeGlobalStore = store;
+  return {
+    store,
+    install(app: { provide: (key: symbol, val: AbbyStore) => void; config?: { globalProperties?: Record<string, unknown> } }) {
+      app.provide(ABBY_INJECTION_KEY, store);
+      if (app.config?.globalProperties) {
+        app.config.globalProperties.$abby = store;
+      }
+    },
+  };
+}
+
+export function useAbby(injectedStore?: AbbyStore): AbbyStore {
+  const store = injectedStore || activeGlobalStore;
+  if (!store) {
+    throw new Error('useAbby() called before createAbbyPlugin() was installed');
+  }
+  return store;
+}
+
+export function useFeatureFlag(flagKey: string, fallback = false, injectedStore?: AbbyStore): boolean {
+  return useAbby(injectedStore).getFlag(flagKey, fallback);
+}
+
+export function useAbTest(testKey: string, fallbackVariant = 'A', injectedStore?: AbbyStore) {
+  const store = useAbby(injectedStore);
+  const { variant, payload } = store.getVariant(testKey, fallbackVariant);
+  return {
+    variant,
+    payload,
+    onConvert: (metadata?: Record<string, unknown>) => store.trackConversion(testKey, metadata),
+  };
+}