What tools does the validate MCP server provide?

validate exposes 1 tools: validate. This list was returned by the running server when we connected to it.

Does validate require an API key?

Yes — validate declares required environment variables: SANDBOX_API_KEY.

How do I install validate?

Run: claude mcp add --transport http validate https://api.machinegrade.dev/mcp. One-click install links for Cursor and VS Code are also available on the server's page.

Connection check verified live · 27h ago

validate

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

Databases & SQL

Install

Remote (HTTP)

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

Before you install: this server needs SANDBOX_API_KEY.

Tools 1

GitHub stars 1

Installs / wk 59

Licence MIT

Transport streamable-http, stdio

Last checked 27h ago

Tools & capabilities

1 tool

Read from the running server on 27h ago.

validate type*artifact*contract

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

Context cost

Light

Connecting this server adds 1 tool definitions to every request — roughly 90 tokens before you ask anything.

Adds little to your context. Safe to keep connected.

Estimated at ~90 tokens per tool. Actual size varies with schema complexity — treat this as an order of magnitude, not a measurement.

shares validate · 37 tools

402signal verified live · 27h ago

shares validate · 3 tools

data-transform verified live · 27h ago

shares validate · 10 tools

freightutils verified live · 26h ago

shares validate · 25 tools

design-engine verified live · 27h ago

shares validate · 7 tools

mercury-x402-mcp verified live · 27h ago

shares validate · 18 tools

Ranked by shared tools where both expose an inventory, otherwise by shared wording.

Source & links

Repository: machinegrade/validate
npm: @machinegrade/validate
Registry: io.github.machinegrade/validate
Endpoint: https://api.machinegrade.dev/mcp
Sources: registry + github + npm