feat: add GET /public/litellm_blog_posts endpoint

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>

litellm/proxy/public_endpoints/public_endpoints.py

@@ -4,6 +4,12 @@ from typing import List
 
 from fastapi import APIRouter, Depends, HTTPException
 
+from litellm.litellm_core_utils.get_blog_posts import (
+    BlogPost,
+    BlogPostsResponse,
+    GetBlogPosts,
+    get_blog_posts,
+)
 from litellm.proxy._types import CommonProxyErrors
 from litellm.proxy.auth.user_api_key_auth import user_api_key_auth
 from litellm.types.agents import AgentCard
@@ -193,6 +199,27 @@ async def get_litellm_model_cost_map():
         )
 
 
+@router.get(
+    "/public/litellm_blog_posts",
+    tags=["public"],
+    response_model=BlogPostsResponse,
+)
+async def get_litellm_blog_posts():
+    """
+    Public endpoint to get the latest LiteLLM blog posts.
+
+    Fetches from GitHub with a 1-hour in-process cache.
+    Falls back to the bundled local backup on any failure.
+    """
+    try:
+        posts_data = get_blog_posts()
+    except Exception:
+        posts_data = GetBlogPosts.load_local_blog_posts()
+
+    posts = [BlogPost(**p) for p in posts_data[:5]]
+    return BlogPostsResponse(posts=posts)
+
+
 @router.get(
     "/public/agents/fields",
     tags=["public", "[beta] Agents"],

tests/proxy_unit_tests/test_blog_posts_endpoint.py

@@ -0,0 +1,79 @@
+"""Tests for the /public/litellm_blog_posts endpoint."""
+from unittest.mock import patch
+
+import pytest
+from fastapi.testclient import TestClient
+
+SAMPLE_POSTS = [
+    {
+        "title": "Test Post",
+        "description": "A test post.",
+        "date": "2026-01-01",
+        "url": "https://www.litellm.ai/blog/test",
+    }
+]
+
+
+@pytest.fixture
+def client():
+    """Create a TestClient with just the public_endpoints router."""
+    from fastapi import FastAPI
+
+    from litellm.proxy.public_endpoints.public_endpoints import router
+
+    app = FastAPI()
+    app.include_router(router)
+    return TestClient(app)
+
+
+def test_get_blog_posts_returns_response_shape(client):
+    with patch(
+        "litellm.proxy.public_endpoints.public_endpoints.get_blog_posts",
+        return_value=SAMPLE_POSTS,
+    ):
+        response = client.get("/public/litellm_blog_posts")
+
+    assert response.status_code == 200
+    data = response.json()
+    assert "posts" in data
+    assert len(data["posts"]) == 1
+    post = data["posts"][0]
+    assert post["title"] == "Test Post"
+    assert post["description"] == "A test post."
+    assert post["date"] == "2026-01-01"
+    assert post["url"] == "https://www.litellm.ai/blog/test"
+
+
+def test_get_blog_posts_limits_to_five(client):
+    """Endpoint returns at most 5 posts."""
+    many_posts = [
+        {
+            "title": f"Post {i}",
+            "description": "desc",
+            "date": "2026-01-01",
+            "url": f"https://www.litellm.ai/blog/{i}",
+        }
+        for i in range(10)
+    ]
+
+    with patch(
+        "litellm.proxy.public_endpoints.public_endpoints.get_blog_posts",
+        return_value=many_posts,
+    ):
+        response = client.get("/public/litellm_blog_posts")
+
+    assert response.status_code == 200
+    assert len(response.json()["posts"]) == 5
+
+
+def test_get_blog_posts_returns_local_backup_on_failure(client):
+    """Endpoint returns local backup (non-empty list) when fetcher fails."""
+    with patch(
+        "litellm.proxy.public_endpoints.public_endpoints.get_blog_posts",
+        side_effect=Exception("fetch failed"),
+    ):
+        response = client.get("/public/litellm_blog_posts")
+
+    # Should not 500 — returns local backup
+    assert response.status_code == 200
+    assert "posts" in response.json()