Contract Guard MCP Server

by othepro211 Your server? Claim it

answering

Contract Guard is answering right now. Last checked 1 min ago.

Deterministic JSON Schema validation with exact violations and conservative type normalization.

Uptime history 26 days of history · worst day 95%

26 days agonow

100.0%

Uptime 24h

92 of 92 checks

—

Tools

hidden behind auth

876 ms

Response time

average over 24h

authentication required

Access

streamable-http

Contract Guard missed one check this week

Everything else answered, so this is steady rather than shaky. We check every 15 minutes, which is how a one-off gets told apart from the start of a pattern, and how you hear about the next one within the hour instead of from your users.

Connect this server

Endpoint below is the one we actually reach during checks — not the one copied from a README. Last verified 1 min ago.

Claude Code Claude Desktop Codex Cursor VS Code

run in your terminal

claude mcp add contract-guard --transport http https://contract-guard-production.up.railway.app/mcp

Settings → Connectors → Add custom connector, then paste this address

https://contract-guard-production.up.railway.app/mcp

~/.codex/config.toml

[mcp_servers.contract-guard]
url = "https://contract-guard-production.up.railway.app/mcp"

.cursor/mcp.json

{
  "mcpServers": {
    "contract-guard": {
      "url": "https://contract-guard-production.up.railway.app/mcp"
    }
  }
}

.vscode/mcp.json

{
  "servers": {
    "contract-guard": {
      "type": "http",
      "url": "https://contract-guard-production.up.railway.app/mcp"
    }
  }
}

This endpoint answered with an authorization challenge. The server is running, but it did not say what kind of credentials it expects.

Endpoints

URL	Transport	State	Latency	Checked
https://contract-guard-production.up.railway.app/mcp	streamable-http	needs auth	2139 ms	1 min ago

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Contract Guard — questions

Answers built from our own checks of this server.

Why is there no tool list for Contract Guard?

The server answered our handshake with an authorization challenge, so it is running — but it will not describe its tools to an anonymous client. To see them you need to connect with your own credentials. We record it as alive, not as broken: 100.0% of checks in the last 24 hours got a reply.

Is Contract Guard working right now?

We send a real MCP handshake every 15 minutes. Over the last 24 hours 92 of 92 checks got a reply (100.0%), average response time 876 ms. The bar chart above shows every period we have measured.

How do I connect Contract Guard?

Copy the ready config from this page. We generate it for Claude Code, Claude Desktop, Codex, Cursor and VS Code, each in the form that client actually reads. It is a remote server, so there is nothing to install — the client connects to the address. You will need your own credentials: it refuses anonymous clients.

Does Contract Guard need an API key?

Yes. Every time we knock, Contract Guard answers with an authorization challenge instead of its tool list — that is how we know it is running and gated rather than broken. Bring your own credentials and it will talk.

How fast is Contract Guard?

It answers our handshake in 876 ms on average, which is faster than 9% of all working MCP servers we measure. That is on the slow side — worth knowing if the tool sits inside an interactive loop. The comparison comes from our own checks across the whole registry, every 15 minutes.