Jonas Scholz
1a51777cc0
Previously the gateway was just fire and forget which lead to a race condition when you immediately tried to access the mcp server, changed the template to launch a daemon with healthcheck. <!-- CURSOR_SUMMARY --> --- > [!NOTE] > Start MCP gateway synchronously with error checks and bump default MCP template to `mcp-gateway-v0-2` across JS and Python SDKs. > > - **MCP Gateway startup**: > - JS (`packages/js-sdk/src/sandbox/index.ts`): Start `mcp-gateway` without background mode; validate exit code and throw on failure. > - Python Async (`packages/python-sdk/e2b/sandbox_async/main.py`): Await `mcp-gateway` start, remove background/timeout flags; raise on non-zero exit. > - Python Sync (`packages/python-sdk/e2b/sandbox_sync/main.py`): Run `mcp-gateway` synchronously; check exit code and raise on failure. > - **Defaults**: > - Update `default_mcp_template` from `mcp-gateway-v0-1` to `mcp-gateway-v0-2` in JS and Python SDKs. > > <sup>Written by [Cursor Bugbot](https://cursor.com/dashboard?tab=bugbot) for commit 79e431c78bf384c970a5b1fede55071116a089c5. This will update automatically on new commits. Configure [here](https://cursor.com/dashboard?tab=bugbot).</sup> <!-- /CURSOR_SUMMARY -->
What is E2B?
E2B is an open-source infrastructure that allows you to run AI-generated code in secure isolated sandboxes in the cloud. To start and control sandboxes, use our JavaScript SDK or Python SDK.
Run your first Sandbox
1. Install SDK
pip install e2b-code-interpreter
2. Get your E2B API key
E2B_API_KEY=e2b_***
3. Execute code with code interpreter inside Sandbox
from e2b_code_interpreter import Sandbox
with Sandbox.create() as sandbox:
sandbox.run_code("x = 1")
execution = sandbox.run_code("x+=1; x")
print(execution.text) # outputs 2
4. Check docs
Visit E2B documentation.
5. E2B cookbook
Visit our Cookbook to get inspired by examples with different LLMs and AI frameworks.