diff --git a/.changeset/six-pugs-hug.md b/.changeset/six-pugs-hug.md
new file mode 100644
index 0000000000..3918942ad3
--- /dev/null
+++ b/.changeset/six-pugs-hug.md
@@ -0,0 +1,5 @@
+---
+'@backstage/repo-tools': minor
+---
+
+Adds a new experimental hidden command `package-docs` for generating API documentation. This is currently only intended for use in the Backstage main repository.
diff --git a/.gitignore b/.gitignore
index 865918c1f7..6627583fce 100644
--- a/.gitignore
+++ b/.gitignore
@@ -174,3 +174,8 @@ knip.json
 # Schemathesis temporary files
 .hypothesis/
 .cassettes/
+
+# Typedocs temporary files
+type-docs
+docs.json
+tsconfig.typedoc.tmp.json
\ No newline at end of file
diff --git a/package.json b/package.json
index d7c1307d69..7e93c4b58c 100644
--- a/package.json
+++ b/package.json
@@ -144,6 +144,7 @@
     "shx": "^0.3.2",
     "sloc": "^0.3.1",
     "sort-package-json": "^2.8.0",
+    "typedoc": "^0.27.6",
     "typescript": "~5.2.0"
   },
   "packageManager": "yarn@3.8.1",
diff --git a/packages/repo-tools/package.json b/packages/repo-tools/package.json
index b4dde33cb8..b50090dd6e 100644
--- a/packages/repo-tools/package.json
+++ b/packages/repo-tools/package.json
@@ -89,7 +89,8 @@
     "@backstage/types": "workspace:^",
     "@types/is-glob": "^4.0.2",
     "@types/node": "^20.16.0",
-    "@types/prettier": "^2.0.0"
+    "@types/prettier": "^2.0.0",
+    "typedoc": "^0.27.6"
   },
   "peerDependencies": {
     "@microsoft/api-extractor-model": "*",
@@ -97,11 +98,15 @@
     "@microsoft/tsdoc-config": "*",
     "@useoptic/optic": "^1.0.0",
     "prettier": "^2.8.1",
+    "typedoc": "^0.27.0",
     "typescript": "> 3.0.0"
   },
   "peerDependenciesMeta": {
     "prettier": {
       "optional": true
+    },
+    "typedoc": {
+      "optional": true
     }
   }
 }
diff --git a/packages/repo-tools/src/commands/index.ts b/packages/repo-tools/src/commands/index.ts
index c298384375..b737d918bd 100644
--- a/packages/repo-tools/src/commands/index.ts
+++ b/packages/repo-tools/src/commands/index.ts
@@ -262,6 +262,11 @@ export function registerCommands(program: Command) {
       lazy(() => import('./knip-reports/knip-reports'), 'buildKnipReports'),
     );
 
+  program
+    .command('package-docs [paths...]', { hidden: true })
+    .description('EXPERIMENTAL: Generate package documentation')
+    .action(lazy(() => import('./package-docs/command'), 'default'));
+
   registerPackageCommand(program);
   registerRepoCommand(program);
   registerLintCommand(program);
diff --git a/packages/repo-tools/src/commands/package-docs/command.ts b/packages/repo-tools/src/commands/package-docs/command.ts
new file mode 100644
index 0000000000..8c30b06145
--- /dev/null
+++ b/packages/repo-tools/src/commands/package-docs/command.ts
@@ -0,0 +1,181 @@
+/*
+ * Copyright 2025 The Backstage Authors
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+import { exec } from 'child_process';
+import { promisify } from 'util';
+import { paths as cliPaths, resolvePackagePaths } from '../../lib/paths';
+import { createTemporaryTsConfig } from './utils';
+import { mkdir, readFile, writeFile } from 'fs/promises';
+import pLimit from 'p-limit';
+
+const limit = pLimit(8);
+
+const execAsync = promisify(exec);
+
+const EXCLUDE = [
+  'packages/app',
+  'packages/app-next',
+  'packages/app-next-example-plugin',
+  'packages/cli',
+  'packages/cli-common',
+  'packages/cli-node',
+  'packages/e2e-test',
+  'packages/e2e-test-utils',
+  'packages/opaque-internal',
+  'packages/techdocs-cli',
+  'packages/techdocs-cli-embedded-app',
+  'packages/yarn-plugin',
+  'packages/backend',
+];
+
+const HIGHLIGHT_LANGUAGES = [
+  'ts',
+  'tsx',
+  'yaml',
+  'bash',
+  'sh',
+  'shell',
+  'yml',
+  'jsx',
+  'diff',
+  'js',
+  'json',
+];
+
+function getExports(packageJson: any) {
+  if (packageJson.exports) {
+    return Object.values(packageJson.exports).filter(
+      (e: any) => !(e as string).endsWith('package.json'),
+    );
+  }
+  return [packageJson.main];
+}
+
+async function generateDocJson(pkg: string) {
+  const temporaryTsConfigPath: string = await createTemporaryTsConfig(pkg);
+
+  const packageJson = JSON.parse(
+    await readFile(cliPaths.resolveTargetRoot(pkg, 'package.json'), 'utf-8'),
+  );
+
+  const exports = getExports(packageJson);
+  if (
+    !exports.length ||
+    !exports.some(e => e.startsWith('src') || e.startsWith('./src'))
+  ) {
+    return;
+  }
+
+  try {
+    await mkdir(cliPaths.resolveTargetRoot(`dist-types`, pkg), {
+      recursive: true,
+    });
+
+    const { stdout, stderr } = await execAsync(
+      [
+        cliPaths.resolveTargetRoot('node_modules/.bin/typedoc'),
+        '--json',
+        cliPaths.resolveTargetRoot(`dist-types`, pkg, 'docs.json'),
+        '--tsconfig',
+        temporaryTsConfigPath,
+        '--basePath',
+        cliPaths.targetRoot,
+        '--skipErrorChecking',
+        ...(getExports(packageJson).flatMap(e => [
+          '--entryPoints',
+          e,
+        ]) as string[]),
+      ].join(' '),
+      {
+        cwd: pkg,
+        env: { ...process.env, NODE_OPTIONS: '--max-old-space-size=12288' },
+      },
+    );
+    console.log(`### Processed ${pkg}`);
+    console.log(stdout);
+    console.error(stderr);
+  } catch (e) {
+    console.error('Failed to generate docs for', pkg);
+    console.error(e);
+  }
+}
+
+export default async function packageDocs(paths: string[] = [], opts: any) {
+  console.warn('!!! This is an experimental command !!!');
+  const selectedPackageDirs = await resolvePackagePaths({
+    paths,
+    include: opts.include,
+    exclude: opts.exclude,
+  });
+
+  console.log(`### Generating docs.`);
+  await Promise.all(
+    selectedPackageDirs.map(pkg =>
+      limit(async () => {
+        if (EXCLUDE.includes(pkg)) {
+          return;
+        }
+        console.log(`### Processing ${pkg}`);
+        await generateDocJson(pkg);
+      }),
+    ),
+  );
+
+  const generatedPackageDirs = [];
+  for (const pkg of selectedPackageDirs) {
+    try {
+      const docsJsonPath = cliPaths.resolveTargetRoot(
+        `dist-types/${pkg}/docs.json`,
+      );
+      const docsJson = JSON.parse(await readFile(docsJsonPath, 'utf-8'));
+      const index = docsJson.children?.find((child: any) =>
+        child.sources.some((e: any) => e.fileName.endsWith('src/index.ts')),
+      );
+
+      if (index) {
+        index.name = 'index';
+      }
+      await writeFile(docsJsonPath, JSON.stringify(docsJson, null, 2));
+      generatedPackageDirs.push(pkg);
+    } catch (e) {
+      if (e.code === 'ENOENT') {
+        console.log('No docs.json found for', pkg);
+      } else {
+        throw e;
+      }
+    }
+  }
+
+  const { stdout, stderr } = await execAsync(
+    [
+      cliPaths.resolveTargetRoot('node_modules/.bin/typedoc'),
+      '--entryPointStrategy',
+      'merge',
+      ...generatedPackageDirs.flatMap(pkg => [
+        '--entryPoints',
+        `dist-types/${pkg}/docs.json`,
+      ]),
+      ...HIGHLIGHT_LANGUAGES.flatMap(e => ['--highlightLanguages', e]),
+      '--out',
+      cliPaths.resolveTargetRoot('type-docs'),
+    ].join(' '),
+    {
+      cwd: cliPaths.targetRoot,
+    },
+  );
+
+  console.log(stdout);
+  console.error(stderr);
+}
diff --git a/packages/repo-tools/src/commands/package-docs/utils.ts b/packages/repo-tools/src/commands/package-docs/utils.ts
new file mode 100644
index 0000000000..2cb95443b6
--- /dev/null
+++ b/packages/repo-tools/src/commands/package-docs/utils.ts
@@ -0,0 +1,44 @@
+/*
+ * Copyright 2024 The Backstage Authors
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+import fs from 'fs-extra';
+import { paths as cliPaths } from '../../lib/paths';
+
+export async function createTemporaryTsConfig(dir: string) {
+  const path = cliPaths.resolveOwnRoot(dir, 'tsconfig.typedoc.tmp.json');
+
+  process.once('exit', () => {
+    fs.removeSync(path);
+  });
+
+  let assetTypeFile: string[] = [];
+
+  try {
+    assetTypeFile = [
+      require.resolve('@backstage/cli/asset-types/asset-types.d.ts'),
+    ];
+  } catch {
+    /** ignore */
+  }
+
+  await fs.writeJson(path, {
+    extends: '../../tsconfig.json',
+    include: [...assetTypeFile, 'src'],
+    exclude: [],
+  });
+
+  return path;
+}
diff --git a/yarn.lock b/yarn.lock
index ad2aa54234..2bab06fc39 100644
--- a/yarn.lock
+++ b/yarn.lock
@@ -8748,6 +8748,7 @@ __metadata:
     portfinder: ^1.0.32
     tar: ^6.1.12
     ts-morph: ^24.0.0
+    typedoc: ^0.27.6
     yaml-diff-patch: ^2.0.0
   peerDependencies:
     "@microsoft/api-extractor-model": "*"
@@ -8755,10 +8756,13 @@ __metadata:
     "@microsoft/tsdoc-config": "*"
     "@useoptic/optic": ^1.0.0
     prettier: ^2.8.1
+    typedoc: ^0.27.0
     typescript: "> 3.0.0"
   peerDependenciesMeta:
     prettier:
       optional: true
+    typedoc:
+      optional: true
   bin:
     backstage-repo-tools: bin/backstage-repo-tools
   languageName: unknown
@@ -10159,6 +10163,17 @@ __metadata:
   languageName: node
   linkType: hard
 
+"@gerrit0/mini-shiki@npm:^1.24.0":
+  version: 1.27.2
+  resolution: "@gerrit0/mini-shiki@npm:1.27.2"
+  dependencies:
+    "@shikijs/engine-oniguruma": ^1.27.2
+    "@shikijs/types": ^1.27.2
+    "@shikijs/vscode-textmate": ^10.0.1
+  checksum: aa4a0def0c7c73f2ef49b53f4dab5bf95f8f3b3d2c895baf384d338856a082a6a0487bc87c28d550b7f52ed71cbe98dae7754a5397be52df49a18e75cdd7d087
+  languageName: node
+  linkType: hard
+
 "@gitbeaker/core@npm:^35.8.1":
   version: 35.8.1
   resolution: "@gitbeaker/core@npm:35.8.1"
@@ -16591,6 +16606,33 @@ __metadata:
   languageName: node
   linkType: hard
 
+"@shikijs/engine-oniguruma@npm:^1.27.2":
+  version: 1.29.2
+  resolution: "@shikijs/engine-oniguruma@npm:1.29.2"
+  dependencies:
+    "@shikijs/types": 1.29.2
+    "@shikijs/vscode-textmate": ^10.0.1
+  checksum: 8713ada50e8875d22d928bd605d509a2c7d5e8c2c8a67b215b169f999457123082a02000182b37b9621903577dae5ac8067c614037fbf0aeb5b6dc2c195e58a2
+  languageName: node
+  linkType: hard
+
+"@shikijs/types@npm:1.29.2, @shikijs/types@npm:^1.27.2":
+  version: 1.29.2
+  resolution: "@shikijs/types@npm:1.29.2"
+  dependencies:
+    "@shikijs/vscode-textmate": ^10.0.1
+    "@types/hast": ^3.0.4
+  checksum: 3aeb2933b5ceda8afe6e4be624847de5fab392085ddf77fb785cf33014120d1afd6825e666d58895e4c489981196abc161c8a4d2e41f7da33d8f5e83b58cc606
+  languageName: node
+  linkType: hard
+
+"@shikijs/vscode-textmate@npm:^10.0.1":
+  version: 10.0.1
+  resolution: "@shikijs/vscode-textmate@npm:10.0.1"
+  checksum: c5a8490417b9439b055844c6c09c3435fc435b1fc3923eb28f05ee346fd68e69df2d93cdaab319a51193970558ff1bf49c5ab047c9ed4fd86c3f9d062457a565
+  languageName: node
+  linkType: hard
+
 "@short.io/opensearch-mock@npm:^0.4.0":
   version: 0.4.0
   resolution: "@short.io/opensearch-mock@npm:0.4.0"
@@ -19806,6 +19848,15 @@ __metadata:
   languageName: node
   linkType: hard
 
+"@types/hast@npm:^3.0.4":
+  version: 3.0.4
+  resolution: "@types/hast@npm:3.0.4"
+  dependencies:
+    "@types/unist": "*"
+  checksum: 7a973e8d16fcdf3936090fa2280f408fb2b6a4f13b42edeb5fbd614efe042b82eac68e298e556d50f6b4ad585a3a93c353e9c826feccdc77af59de8dd400d044
+  languageName: node
+  linkType: hard
+
 "@types/highlightjs@npm:^10.1.0":
   version: 10.1.0
   resolution: "@types/highlightjs@npm:10.1.0"
@@ -42842,6 +42893,7 @@ __metadata:
     shx: ^0.3.2
     sloc: ^0.3.1
     sort-package-json: ^2.8.0
+    typedoc: ^0.27.6
     typescript: ~5.2.0
   languageName: unknown
   linkType: soft
@@ -46054,6 +46106,23 @@ __metadata:
   languageName: node
   linkType: hard
 
+"typedoc@npm:^0.27.6":
+  version: 0.27.6
+  resolution: "typedoc@npm:0.27.6"
+  dependencies:
+    "@gerrit0/mini-shiki": ^1.24.0
+    lunr: ^2.3.9
+    markdown-it: ^14.1.0
+    minimatch: ^9.0.5
+    yaml: ^2.6.1
+  peerDependencies:
+    typescript: 5.0.x || 5.1.x || 5.2.x || 5.3.x || 5.4.x || 5.5.x || 5.6.x || 5.7.x
+  bin:
+    typedoc: bin/typedoc
+  checksum: 1a8ac5dd636406fa0bcd4a1e9801d72896256c531c09a56207f991b62b7d4ceb336050a8933a3aba0239da6df5da3436e51c86776043501b6e9483aa0b31e69f
+  languageName: node
+  linkType: hard
+
 "types-ramda@npm:^0.30.0":
   version: 0.30.0
   resolution: "types-ramda@npm:0.30.0"
@@ -47982,7 +48051,7 @@ __metadata:
   languageName: node
   linkType: hard
 
-"yaml@npm:^2.0.0, yaml@npm:^2.0.0-10, yaml@npm:^2.1.1, yaml@npm:^2.2.1, yaml@npm:^2.2.2, yaml@npm:^2.3.2, yaml@npm:^2.3.3, yaml@npm:^2.3.4, yaml@npm:^2.7.0":
+"yaml@npm:^2.0.0, yaml@npm:^2.0.0-10, yaml@npm:^2.1.1, yaml@npm:^2.2.1, yaml@npm:^2.2.2, yaml@npm:^2.3.2, yaml@npm:^2.3.3, yaml@npm:^2.3.4, yaml@npm:^2.6.1, yaml@npm:^2.7.0":
   version: 2.7.0
   resolution: "yaml@npm:2.7.0"
   bin: