feat: add GET REST API route for listing tools (#1100)

memgpt/metadata.py

@@ -1,6 +1,7 @@
 """ Metadata store for user/agent/data_source information"""
 
 import os
+import inspect as python_inspect
 import uuid
 import secrets
 from typing import Optional, List
@@ -9,8 +10,9 @@ from memgpt.constants import DEFAULT_HUMAN, DEFAULT_MEMGPT_MODEL, DEFAULT_PERSON
 from memgpt.utils import get_local_time, enforce_types
 from memgpt.data_types import AgentState, Source, User, LLMConfig, EmbeddingConfig, Token, Preset
 from memgpt.config import MemGPTConfig
+from memgpt.functions.functions import load_all_function_sets
 
-from memgpt.models.pydantic_models import PersonaModel, HumanModel
+from memgpt.models.pydantic_models import PersonaModel, HumanModel, ToolModel
 
 from sqlalchemy import create_engine, Column, String, BIGINT, select, inspect, text, JSON, BLOB, BINARY, ARRAY, Boolean
 from sqlalchemy import func
@@ -517,6 +519,25 @@ class MetadataStore:
             results = session.query(PresetModel).filter(PresetModel.user_id == user_id).all()
             return [r.to_record() for r in results]
 
+    @enforce_types
+    def list_tools(self, user_id: uuid.UUID) -> List[ToolModel]:
+        with self.session_maker() as session:
+            available_functions = load_all_function_sets()
+            print(available_functions)
+            results = [
+                ToolModel(
+                    name=k,
+                    json_schema=v["json_schema"],
+                    source_type="python",
+                    source_code=python_inspect.getsource(v["python_function"]),
+                )
+                for k, v in available_functions.items()
+            ]
+            print(results)
+            return results
+            # results = session.query(PresetModel).filter(PresetModel.user_id == user_id).all()
+            # return [r.to_record() for r in results]
+
     @enforce_types
     def list_agents(self, user_id: uuid.UUID) -> List[AgentState]:
         with self.session_maker() as session:

memgpt/models/pydantic_models.py

@@ -1,4 +1,4 @@
-from typing import List, Optional, Dict
+from typing import List, Optional, Dict, Literal
 from pydantic import BaseModel, Field, Json
 import uuid
 from datetime import datetime
@@ -36,6 +36,14 @@ class PresetModel(BaseModel):
     functions_schema: List[Dict] = Field(..., description="The functions schema of the preset.")
 
 
+class ToolModel(BaseModel):
+    # TODO move into database
+    name: str = Field(..., description="The name of the function.")
+    json_schema: dict = Field(..., description="The JSON schema of the function.")
+    source_type: Optional[Literal["python"]] = Field(None, description="The type of the source code.")
+    source_code: Optional[str] = Field(..., description="The source code of the function.")
+
+
 class AgentStateModel(BaseModel):
     id: uuid.UUID = Field(..., description="The unique identifier of the agent.")
     name: str = Field(..., description="The name of the agent.")

memgpt/server/rest_api/server.py

@@ -20,6 +20,7 @@ from memgpt.server.rest_api.models.index import setup_models_index_router
 from memgpt.server.rest_api.openai_assistants.assistants import setup_openai_assistant_router
 from memgpt.server.rest_api.personas.index import setup_personas_index_router
 from memgpt.server.rest_api.static_files import mount_static_files
+from memgpt.server.rest_api.tools.index import setup_tools_index_router
 from memgpt.server.server import SyncServer
 
 """
@@ -92,6 +93,7 @@ app.include_router(setup_agents_message_router(server, interface, password), pre
 app.include_router(setup_humans_index_router(server, interface, password), prefix=API_PREFIX)
 app.include_router(setup_personas_index_router(server, interface, password), prefix=API_PREFIX)
 app.include_router(setup_models_index_router(server, interface, password), prefix=API_PREFIX)
+app.include_router(setup_tools_index_router(server, interface, password), prefix=API_PREFIX)
 
 # /api/config endpoints
 app.include_router(setup_config_index_router(server, interface, password), prefix=API_PREFIX)

memgpt/server/rest_api/tools/index.py

@@ -0,0 +1,35 @@
+import uuid
+from functools import partial
+from typing import List
+
+from fastapi import APIRouter, Depends, Body
+from pydantic import BaseModel, Field
+
+from memgpt.models.pydantic_models import ToolModel
+from memgpt.server.rest_api.auth_token import get_current_user
+from memgpt.server.rest_api.interface import QueuingInterface
+from memgpt.server.server import SyncServer
+
+router = APIRouter()
+
+
+class ListToolsResponse(BaseModel):
+    tools: List[ToolModel] = Field(..., description="List of tools (functions).")
+
+
+def setup_tools_index_router(server: SyncServer, interface: QueuingInterface, password: str):
+    get_current_user_with_server = partial(partial(get_current_user, server), password)
+
+    @router.get("/tools", tags=["tools"], response_model=ListToolsResponse)
+    async def list_tools(
+        user_id: uuid.UUID = Depends(get_current_user_with_server),
+    ):
+        """
+        Get a list of all tools available to agents created by a user
+        """
+        # Clear the interface
+        interface.clear()
+        tools = server.ms.list_tools(user_id=user_id)
+        return ListToolsResponse(tools=tools)
+
+    return router