Decoder-only Scoring API (#6460)

Co-authored-by: Chanh Nguyen <cnguyen@linkedin.com>

python/sglang/srt/entrypoints/http_server.py

@@ -82,6 +82,7 @@ from sglang.srt.openai_api.adapter import (
     v1_retrieve_batch,
     v1_retrieve_file,
     v1_retrieve_file_content,
+    v1_score,
 )
 from sglang.srt.openai_api.protocol import ModelCard, ModelList
 from sglang.srt.reasoning_parser import ReasoningParser
@@ -720,6 +721,12 @@ async def vertex_generate(vertex_req: VertexGenerateReqInput, raw_request: Reque
     return ORJSONResponse({"predictions": ret})
 
 
+@app.post("/v1/score")
+async def v1_score_request(raw_request: Request):
+    """Endpoint for the decoder-only scoring API. See Engine.score() for detailed documentation."""
+    return await v1_score(_global_state.tokenizer_manager, raw_request)
+
+
 def _create_error_response(e):
     return ORJSONResponse(
         {"error": {"message": str(e)}}, status_code=HTTPStatus.BAD_REQUEST