MCP Servers

machinegrade/validate

Deterministic validation for AI-generated artifacts: JSON Schema, OpenAPI response, SQL. Typed verdicts with fix hints. Metered API + MCP.

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Our verdict

Not reviewed yet

We have not reviewed machinegrade/validate yet

No one at Enterprise DNA has checked this listing against its sources. The description comes from public listings gathered automatically. Any fact below shows where it came from and when it was last checked.

How we review records

From the listing

About machinegrade/validate

Deterministic validation for AI-generated artifacts. Supports JSON Schema, OpenAPI response, and SQL checks. Returns typed verdicts with fix hints through a metered API or MCP.

Best for

Developers building deterministic checks into AI output pipelines

Use cases

Validate AI-generated JSON against a schema
Check AI-produced OpenAPI responses for conformance
Run SQL validation with fix hints in CI or MCP workflows

Notes

1 stars on GitHub. Last updated 2026-07-26. Licensed MIT.

Pros

Typed verdicts make failures machine-readable
Fix hints help developers correct outputs quickly
Supports multiple artifact types including JSON Schema, OpenAPI, and SQL

Cons

Metered API means usage costs can add up
Only 1 GitHub star suggests limited community adoption
No stated support for validation formats beyond the three listed

Key facts

What we have checked

Days since the last commit: 95; Checked 29 Oct 2026GitHub
GitHub forks: 0; Checked 29 Oct 2026GitHub
GitHub stars: 1; Checked 29 Oct 2026GitHub
Open issues: 0; Checked 29 Oct 2026GitHub
Releases in the last 90 days: 0; Checked 29 Oct 2026GitHub

Each value shows when we last confirmed it and where it came from. Values we have not confirmed are left out, never guessed.

How to use

How to set it up

As the listing publishes it. We have not run this install.

Tools exposed

INVALID_KEY
LIMIT_EXCEEDED
UNSUPPORTED_TYPE
MALFORMED_INPUT
RATE_LIMITED

Clients the listing names (not checked here)

Claude Desktop, Claude Code

Install

Add machinegrade/validate to your client

Not verified yet

Our lab has not run this server yet. "Config checked" on a client means the recipe matches that client's documented config format; it does not mean we ran it.

Claude Code

Config checked

Run in your terminal (remote server)

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

Version 0.1.2 · From the Official MCP registry, read 24 Oct 2026 · Format checked against Claude Code's config docs

Claude Desktop

Config checked

Add to claude_desktop_config.json (runs on your computer)

{
  "mcpServers": {
    "machinegrade-validate": {
      "command": "npx",
      "args": [
        "-y",
        "@machinegrade/validate@0.1.2"
      ],
      "env": {
        "SANDBOX_API_KEY": "YOUR_SANDBOX_API_KEY"
      }
    }
  }
}

Needs SANDBOX_API_KEY: replace each YOUR_ value with your own.

Version 0.1.2 · From the Official MCP registry, read 24 Oct 2026 · Format checked against Claude Desktop's config docs

Cursor

Config checked

Add to .cursor/mcp.json (remote server)

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

Version 0.1.2 · From the Official MCP registry, read 24 Oct 2026 · Format checked against Cursor's config docs

VS Code

Config checked

Add to .vscode/mcp.json (remote server)

{
  "servers": {
    "machinegrade-validate": {
      "type": "http",
      "url": "https://api.machinegrade.dev/mcp"
    }
  }
}

Version 0.1.2 · From the Official MCP registry, read 24 Oct 2026 · Format checked against VS Code's config docs

Codex

Config checked

Add to ~/.codex/config.toml (remote server)

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

Version 0.1.2 · From the Official MCP registry, read 24 Oct 2026 · Format checked against Codex's config docs

ChatGPT

Config checked

Fill in the Add custom MCP server form (remote server)

Where: ChatGPT Plugins > + > Add custom MCP server
Name: machinegrade-validate
Description: Deterministic validation for AI-generated artifacts: JSON Schema, OpenAPI response, SQL syntax.
Connection: Public endpoint
MCP server URL: https://api.machinegrade.dev/mcp

Version 0.1.2 · From the Official MCP registry, read 24 Oct 2026 · Format checked against ChatGPT's config docs

Recipes come from the server's entry in the official MCP registry. Check the package name before you run it, and keep keys out of shared files.

Works with

What machinegrade/validate connects to

6 clients, each with how we know and when we checked.

Works with	Type	How we know	Checked
Claude Code	Client	Install recipe matches the client's documented formatRemote server, version 0.1.2Config checked	24 Oct 2026Claude Code docs
Claude Desktop	Client	Install recipe matches the client's documented formatRuns locally, version 0.1.2Config checked	24 Oct 2026Claude Desktop docs
Cursor	Client	Install recipe matches the client's documented formatRemote server, version 0.1.2Config checked	24 Oct 2026Cursor docs
VS Code	Client	Install recipe matches the client's documented formatRemote server, version 0.1.2Config checked	24 Oct 2026VS Code docs
Codex	Client	Install recipe matches the client's documented formatRemote server, version 0.1.2Config checked	24 Oct 2026Codex docs
ChatGPT	Client	Install recipe matches the client's documented formatRemote server, version 0.1.2Config checked	24 Oct 2026ChatGPT docs

Health and security

Is machinegrade/validate looked after, and what do its setup files show

Health score

49 out of 100

Does someone look after this repository? It does not say the code is good or safe. Worked out from GitHub signals checked 29 Oct 2026. How it is worked out

Part	Points	What we saw
Recent activity	24.2 of 30	Last push 95 days ago
Releases	0 of 15	0 releases in 90 days
Issue replies	Not counted	The latest check has no issue response reading (fewer than 3 measured issues, or issues switched off)
Maintainer	15 of 15	Owned by an organisation
Official source	0 of 20	Community server

Sources

Where this comes from

GitHubRegistry
Checked 29 Oct 2026 · Days since the last commit, GitHub forks, GitHub stars, Open issues, Releases in the last 90 days

A source shows what was published when we checked it. It does not certify security, performance or a working installation. Read our method.

Changelog

What changed

27 Oct 2026
Shut down
Source: api.machinegrade.dev

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