unsloth/studio/backend/routes/data_recipe/mcp.py
2026-03-09 20:17:45 +00:00

80 lines
2.5 KiB
Python

# SPDX-License-Identifier: AGPL-3.0-only - See /studio/LICENSE.AGPL-3.0
# Copyright © 2025 Unsloth AI
"""MCP helper endpoints for data recipe."""
from __future__ import annotations
from collections import defaultdict
from fastapi import APIRouter
from core.data_recipe.service import build_mcp_providers
from models.data_recipe import (
McpToolsListRequest,
McpToolsListResponse,
McpToolsProviderResult,
)
router = APIRouter()
@router.post("/mcp/tools", response_model=McpToolsListResponse)
def list_mcp_tools(payload: McpToolsListRequest) -> McpToolsListResponse:
try:
from data_designer.engine.mcp import io as mcp_io
except ImportError as exc:
return McpToolsListResponse(
providers=[
McpToolsProviderResult(
name="",
error=f"MCP dependencies unavailable: {exc}",
)
]
)
providers: list[McpToolsProviderResult] = []
tool_to_providers: dict[str, list[str]] = defaultdict(list)
for provider_payload in payload.mcp_providers:
provider_name = str(provider_payload.get("name", "")).strip()
built = build_mcp_providers({"mcp_providers": [provider_payload]})
if len(built) != 1:
providers.append(
McpToolsProviderResult(
name=provider_name,
error="Unsupported MCP provider config.",
)
)
continue
provider = built[0]
try:
tools = mcp_io.list_tools(provider, timeout_sec=payload.timeout_sec)
tool_names = sorted({tool.name for tool in tools if getattr(tool, "name", "")})
for tool_name in tool_names:
tool_to_providers[tool_name].append(provider.name)
providers.append(
McpToolsProviderResult(
name=provider.name,
tools=tool_names,
)
)
except Exception as exc:
providers.append(
McpToolsProviderResult(
name=provider.name or provider_name,
error=str(exc).strip() or "Failed to load tools.",
)
)
duplicate_tools = {
tool_name: provider_names
for tool_name, provider_names in sorted(tool_to_providers.items())
if len(provider_names) > 1
}
return McpToolsListResponse(
providers=providers,
duplicate_tools=duplicate_tools,
)