Validate MCP Server

by machinegrade Your server? Claim it

answering

Validate is answering right now. Last checked 6 min ago. 35 installs a week from npm. It exposes 1 tools. Last commit 26 Jul 2026.

Deterministic validation for AI-generated artifacts: JSON Schema, OpenAPI response, SQL syntax.

Installs per day peak 14 · avg 6 · +32% w/w

a month agotoday

Uptime history 47 days of history

47 days agonow

100.0%

Uptime 24h

92 of 92 checks

Tools

read from the server

342 ms

Response time

average over 24h

Installs / week

npm and PyPI

Nothing serious here today

Today is the operative word: we check Validate every 15 minutes and re-read its code on every release. Watch it and you find out the day that stops being true.

Connect this server

Endpoint below is the one we actually reach during checks — not the one copied from a README. Last verified 6 min ago.

Claude Code Claude Desktop Codex Cursor VS Code

run in your terminal

claude mcp add validate --transport http https://api.machinegrade.dev/mcp

~/Library/Application Support/Claude/claude_desktop_config.json

{
  "mcpServers": {
    "validate": {
      "url": "https://api.machinegrade.dev/mcp"
    }
  }
}

~/.codex/config.toml

[mcp_servers.validate]
url = "https://api.machinegrade.dev/mcp"

.cursor/mcp.json

{
  "mcpServers": {
    "validate": {
      "url": "https://api.machinegrade.dev/mcp"
    }
  }
}

.vscode/mcp.json

{
  "mcpServers": {
    "validate": {
      "url": "https://api.machinegrade.dev/mcp"
    }
  }
}

This one needs environment variables set before it will start: SANDBOX_URL (Base URL of the validate API), SANDBOX_API_KEY (API key issued via POST https://api.machinegrade.dev/keys (free tier: 500 calls/month)). The author declared them in the registry entry; get the values from the project itself.

Available tools 1

Read directly from the server with tools/list, grouped by what they act on. If a tool disappears, we record the date.

validate

validate

Validate an artifact against a contract (json_schema | openapi_response | sql) via the machinegrade validate API.

Endpoints

URL	Transport	State	Latency	Checked
https://api.machinegrade.dev/mcp	streamable-http	answering	313 ms	6 min ago

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Validate — questions

Answers built from our own checks of this server.

What can Validate do?

It exposes 1 tools, read directly from the server on our last check. Among them: validate. The full list with descriptions is on this page — we take it from the server itself via tools/list, not from a README. How MCP servers expose tools in the first place →

Is Validate 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 342 ms. The bar chart above shows every period we have measured.

How do I connect Validate?

Copy the ready config from this page — we generate it for Claude Code, Claude Desktop, Codex, Cursor and VS Code, each with the file path that client actually reads. It is a remote server, so there is nothing to install — the client connects to the address.

Does Validate need an API key?

No. Validate completed a full MCP handshake with us as an anonymous client and listed its tools without asking for anything. All 1 of them are readable on this page. This is what we observed, not what the docs claim.

How fast is Validate?

It answers our handshake in 342 ms on average, which is faster than 45% of all working MCP servers we measure. The comparison comes from our own checks across the whole registry, every 15 minutes.

How many people use Validate?

The npm package @machinegrade/validate was installed 35 times in the last week. Week over week that is +32%. We show installs rather than GitHub stars on purpose: a star is a bookmark, an install is someone actually running it.

Is Validate open source?

Yes — it is published under the MIT licence, written in TypeScript and 1 stars on GitHub. The source link is on this page, so you can read exactly what it does with your data before you connect it.