From 69c6b56957d9906c55f0326b1742ba71ab9a60fe Mon Sep 17 00:00:00 2001
From: Zevan770 <151506788+hw770@users.noreply.github.com>
Date: Mon, 5 Jan 2026 05:06:05 +0800
Subject: [PATCH] feat: add Anthropic event logging endpoint
 /api/event_logging/batch returning 200

---
 README.md                         | 1 +
 src/routes/event-logging/route.ts | 8 ++++++++
 src/server.ts                     | 2 ++
 3 files changed, 11 insertions(+)
 create mode 100644 src/routes/event-logging/route.ts

diff --git a/README.md b/README.md
index 0d36c13c..938514dc 100644
--- a/README.md
+++ b/README.md
@@ -199,6 +199,7 @@ These endpoints are designed to be compatible with the Anthropic Messages API.
 | -------------------------------- | ------ | ------------------------------------------------------------ |
 | `POST /v1/messages`              | `POST` | Creates a model response for a given conversation.           |
 | `POST /v1/messages/count_tokens` | `POST` | Calculates the number of tokens for a given set of messages. |
+| `POST /api/event_logging/batch`  | `POST` | Anthropic telemetry log (ignore, just return 200)          |
 
 ### Usage Monitoring Endpoints
 
diff --git a/src/routes/event-logging/route.ts b/src/routes/event-logging/route.ts
new file mode 100644
index 00000000..cda86ea4
--- /dev/null
+++ b/src/routes/event-logging/route.ts
@@ -0,0 +1,8 @@
+import { Hono } from "hono"
+
+export const eventLoggingRoutes = new Hono()
+
+// Anthropic telemetry log (ignore, just return 200)
+eventLoggingRoutes.post("/batch", (c) => {
+  return c.text("OK", 200)
+})
diff --git a/src/server.ts b/src/server.ts
index 462a278f..c2f2346c 100644
--- a/src/server.ts
+++ b/src/server.ts
@@ -4,6 +4,7 @@ import { logger } from "hono/logger"
 
 import { completionRoutes } from "./routes/chat-completions/route"
 import { embeddingRoutes } from "./routes/embeddings/route"
+import { eventLoggingRoutes } from "./routes/event-logging/route"
 import { messageRoutes } from "./routes/messages/route"
 import { modelRoutes } from "./routes/models/route"
 import { tokenRoute } from "./routes/token/route"
@@ -29,3 +30,4 @@ server.route("/v1/embeddings", embeddingRoutes)
 
 // Anthropic compatible endpoints
 server.route("/v1/messages", messageRoutes)
+server.route("/api/event_logging", eventLoggingRoutes)