diff --git a/.github/workflows/build-tools-api.yml b/.github/workflows/build-tools-api.yml
new file mode 100644
index 00000000..f3d4f1b3
--- /dev/null
+++ b/.github/workflows/build-tools-api.yml
@@ -0,0 +1,36 @@
+name: Build Aggregated Tools API
+
+on:
+  push:
+    branches:
+      - main
+
+jobs:
+  build_tools_api:
+    runs-on: ubuntu-latest
+
+    steps:
+      - name: Checkout
+        uses: actions/checkout@v6
+
+      - name: Setup Node
+        uses: actions/setup-node@v6
+        with:
+          node-version: "24"
+          cache: "npm"
+          cache-dependency-path: web/package-lock.json
+
+      - name: Install dependencies
+        run: npm ci
+        working-directory: web
+
+      - name: Generate aggregated API
+        run: npm run build:api
+        working-directory: web
+
+      - name: Upload tools API artifact
+        uses: actions/upload-artifact@v4
+        with:
+          name: tools-api-json
+          path: web/public/api/tools.json
+          if-no-files-found: error
diff --git a/web/README.md b/web/README.md
index 85d188fd..9a37ce5e 100644
--- a/web/README.md
+++ b/web/README.md
@@ -24,6 +24,7 @@ The app starts with Vite (typically at `http://localhost:5173`).
 
 - `npm run dev`: Start local dev server with HMR
 - `npm run build`: Build production assets into `dist/`
+- `npm run build:api`: Generate aggregated tools API JSON at `public/api/tools.json`
 - `npm run preview`: Preview the production build locally
 - `npm run lint`: Run ESLint on JS/JSX files
 - `npm run format-json:check`: Check formatting for `../quality-tools/*.json`
@@ -65,6 +66,16 @@ This means:
 - New/updated JSON files in `quality-tools/` are available to the UI at build time.
 - Tool IDs in URLs are based on filenames (stored as `_filename` in loader output).
 
+### Aggregated JSON API
+
+The build process also creates a static aggregated API payload from all files in `../quality-tools`:
+
+- Build artifact path: `dist/api/tools.json`
+- URL on deployed docs site: `.../api/tools.json`
+- Payload keys: `generatedAt`, `source`, `count`, `files`, `tools`
+
+Because this file is generated during `npm run build`, the deployed docs always include an up-to-date machine-readable API of the catalogue.
+
 ## Styling System
 
 - Tailwind CSS v4 is enabled via `@import "tailwindcss"` in `src/index.css`.
diff --git a/web/package.json b/web/package.json
index beb52a46..78cbe8f8 100644
--- a/web/package.json
+++ b/web/package.json
@@ -5,7 +5,8 @@
   "type": "module",
   "scripts": {
     "dev": "vite",
-    "build": "vite build",
+    "build": "npm run build:api && vite build",
+    "build:api": "node ./scripts/generate-tools-api.mjs",
     "lint": "eslint .",
     "format-json:check": "prettier --check ../quality-tools",
     "format-json:fix": "prettier --write ../quality-tools",
diff --git a/web/scripts/generate-tools-api.mjs b/web/scripts/generate-tools-api.mjs
new file mode 100644
index 00000000..0f807895
--- /dev/null
+++ b/web/scripts/generate-tools-api.mjs
@@ -0,0 +1,55 @@
+import fs from 'node:fs/promises';
+import path from 'node:path';
+import { fileURLToPath } from 'node:url';
+
+const __dirname = path.dirname(fileURLToPath(import.meta.url));
+const repoRoot = path.resolve(__dirname, '..', '..');
+const sourceDir = path.join(repoRoot, 'quality-tools');
+const targetDir = path.join(repoRoot, 'web', 'public', 'api');
+const targetFile = path.join(targetDir, 'tools.json');
+
+const readToolFiles = async () => {
+    const entries = await fs.readdir(sourceDir, { withFileTypes: true });
+    const jsonFiles = entries
+        .filter((entry) => entry.isFile() && entry.name.endsWith('.json'))
+        .map((entry) => entry.name)
+        .sort((a, b) => a.localeCompare(b));
+
+    const tools = await Promise.all(
+        jsonFiles.map(async (filename) => {
+            const filePath = path.join(sourceDir, filename);
+            const fileContent = await fs.readFile(filePath, 'utf-8');
+            const parsed = JSON.parse(fileContent);
+
+            return {
+                ...parsed,
+                _filename: filename.replace(/\.json$/i, ''),
+            };
+        }),
+    );
+
+    return { tools, files: jsonFiles };
+};
+
+const writeApiFile = async () => {
+    const { tools, files } = await readToolFiles();
+
+    const payload = {
+        generatedAt: new Date().toISOString(),
+        source: 'quality-tools',
+        count: tools.length,
+        files,
+        tools,
+    };
+
+    await fs.mkdir(targetDir, { recursive: true });
+    await fs.writeFile(targetFile, `${JSON.stringify(payload, null, 2)}\n`, 'utf-8');
+
+    console.log(`Generated ${targetFile} with ${tools.length} tools.`);
+};
+
+writeApiFile().catch((error) => {
+    console.error('Failed to generate aggregated tools API JSON.');
+    console.error(error);
+    process.exitCode = 1;
+});
\ No newline at end of file