Authenticated Cloud RunBLOCK
Host an Model Context Protocol SSE deployment on Cloud Run, Authenticating with IAM.
Overview
From the repository's own README, as read at the audited commit. Badges and raw HTML are left out.
At the moment (03/04/2024) MCP is still addressing Authentication and Authorization. They plan to complete this in H1 2025. The issue is, I want to share my MCP server with my team NOW. So here we are. The only immediate answer to use a SSE MCP server in Cursor, etc.. right now is a network layer based solution (e.g., a proxy). Basic auth, api keys, forget about it.
Utilizing GCP Cloud Run and User Based IAM Authentication, I have created a simple, secure way to allow clients to access a custom MCP server over the internet.
How it works
The MCP server is hosted on Google Cloud Run. Utilizing Cloud Run IAM Authentication, we can securely connect to the server from the internet by utilizing the Google Cloud SDK to create a proxy connection.
TLDR README
This *should work out of the box* with minimal config if you already have docker and the gcloud CLI set up locally.
Step 1: Update deploy.sh with your project id, service account email, etc.
Step 2: On deploy success, grab the cloud run URL that was provided, and add it to mcp_proxy.ts along with your project id.
Step 3: Run the proxy npx ts-node mcp_proxy.ts
Step 3: Access your MCP server using http://localhost:3030 - Add it to Cursor under Settings > Features > MCP Servers (make sure you select SSE not command)
LONG BORING README
Deployment Steps
- Clone the repository
- Run
npm installto install the dependencies - Run
npm run devto start the server locally
Deployment to Google Cloud Run
To deploy your MCP server to Google Cloud Run:
- Make sure you have the Google Cloud SDK installed
- Update the
deploy.shscript with your project details: PROJECT_ID: Your Google Cloud
9b8019fc247cOBSERVED · 2026-10-10Connect
Built from this server's own package name, version and transport as found in its source — not copied from anyone's documentation, so it cannot drift against a page we do not control.
claude mcp add mcp-server -- npx -y @freetech/[email protected]
{
"mcpServers": {
"mcp-server": {
"command": "npx",
"args": [
"-y",
"@freetech/[email protected]"
]
}
}
}Exposed tools (2)
2 read · 0 write · 0 destructive.
| Tool | Risk | Description |
|---|---|---|
get_alerts | read | Get weather alerts for a state |
get_forecast | read | Get weather forecast for a location |
Trust audit
BLOCKgrade D · trust 69/100 Do not install this without reading the findings. The audit found something that could harm you or your machine.
| Layer | What it checks | Result |
|---|---|---|
| L0 | Provenance & inventory | PASS |
| L1 | Static analysis of the code | FAIL |
| L2 | Instruction surface (what it tells the agent) | PASS |
| L3 | Class-specific surface | PASS |
| L4 | Behavioural (sandbox) | SKIPPED |
What the source does
- Filesystem
- none-observed
- Network
- declared (5 observation(s))
- Shell
- declared (1 observation(s))
- Dependencies
- not all pinned
- Secrets in source
- none-found
Findings (3)
exec(
cors, dotenv, express, firebase-admin, node-fetch, zod, @types/cors, @types/express
At the moment (03/04/2024) MCP is still addressing Authentication and Authorization. They plan to complete this in H1 2025. The issue is, I want to share my MCP server with my team NOW. So here we are
Gates applied: no_behavioural_pass.
9b8019fc247cfull audit observations/trust-audit/mcp-server/the-freetech-company__authenticated-cloud-run.json · Report an issue / request a re-scanAudit history
Every audit this server has had. A grade with a past is a grade somebody is still checking.
| Date | Source | Verdict | Grade | Score | Change |
|---|---|---|---|---|---|
| 2026-10-10 | 9b8019fc247c | BLOCK | D | 69 | first audit |
Questions
What is the Authenticated Cloud Run MCP server?
Host an Model Context Protocol SSE deployment on Cloud Run, Authenticating with IAM.
What tools does Authenticated Cloud Run expose?
2 in total: 2 read-only, 0 that write, and 0 that can delete or overwrite. Every one is listed on this page with its risk.
Is Authenticated Cloud Run safe to connect to an agent?
No — not without reading the findings first. The audit graded it D (69/100) and found 1 critical or high issue in the source. Each one is listed on this page with the file and line it is on.
What credentials does Authenticated Cloud Run need?
No credential environment variables were found in its source, so it appears to need none.
How does Authenticated Cloud Run run?
It speaks sse and stdio, so it runs as a local process your client starts. It is published on npm as @freetech/mcp-server at 1.0.0.
How current is this page?
The grade is for one exact copy of the source (9b8019fc247c), read on 2026-10-10. The repository is watched and re-audited when it changes.