MCP server

Dev Facts Check

app.openkrill/dev-facts

Checked 25 Oct 2026, 20:29 UTC · Connected to it and listed its tools

Software end-of-life dates, open-source licenses, browser support for web features and RFC facts.

Website Source

At a glance

Type

MCP server

Publisher

openkrill.app (verified by the MCP Registry)

Status

Working at last check

Tools

8

Token cost

About 2,875 tokens per request

Sets up in

Claude Code, Claude Desktop, Codex, Gemini CLI, Cursor, VS Code, Antigravity, ChatGPT, OpenAI API, Grok

Last checked

25 Oct 2026, 20:29 UTC

Connect it to your agent

Add to CursorAdd to VS CodeVS Code Insiders

Opens the app, which shows the server and asks you to confirm. For other apps, copy the setup below.

Claude Code

claude mcp add --transport http dev-facts https://devfacts.openkrill.app/mcp

Claude Desktop

Settings → Connectors → Add custom connector, and paste the URL.

Codex (config.toml)

[mcp_servers.dev-facts]
url = "https://devfacts.openkrill.app/mcp"

Gemini CLI

{"mcpServers":{"dev-facts":{"httpUrl":"https://devfacts.openkrill.app/mcp"}}}

Cursor

{"mcpServers":{"dev-facts":{"url":"https://devfacts.openkrill.app/mcp"}}}

VS Code

{"servers":{"dev-facts":{"type":"http","url":"https://devfacts.openkrill.app/mcp"}}}

Antigravity

agy mcp add dev-facts https://devfacts.openkrill.app/mcp

ChatGPT

Settings → Apps & Connectors → Advanced settings: turn on Developer mode, then Create a connector and paste the URL. Which plans can do this varies.

OpenAI API (Responses tools)

{"type":"mcp","server_label":"dev-facts","server_url":"https://devfacts.openkrill.app/mcp","require_approval":"always"}

Grok (xAI API tools)

{"type":"mcp","server_label":"dev-facts","server_url":"https://devfacts.openkrill.app/mcp"}

Tools

• check_browser_support ~241 tokens
  Use this when the user asks whether a web platform feature works in browsers, such as "can I use CSS container queries in Safari?" or "is subgrid Baseline?". Pass the feature name or its id. Returns its Baseline status (widely available, newly available or limited), the dates it reached them, and th
• check_license ~239 tokens
  Use this when the user asks about an open-source license, such as "is the MIT license OSI approved?" or "what is the SPDX id of Apache License 2.0?". Pass an SPDX identifier or the license name. Returns the SPDX id, full name, whether it is OSI approved, whether the FSF lists it as free, whether the
• check_runtime_eol ~760 tokens
  Use this when the user asks whether a runtime version or a project's runtimes are still supported, such as "is Node 18 past end of life?" or "is the Node version in our Dockerfile still supported?". Pass runtimes by name and version, such as [{"runtime": "node", "version": "18"}], or the repository'
• get_eol_status ~332 tokens
  Get end-of-life status. Use this when the user asks whether a software version is still supported or when it reaches end of life, such as "is Node.js 20 still supported?" or "which Python versions get security fixes?". Pass the product (nodejs, python, ubuntu, postgresql and so on) and optionally a
• get_release_notes ~498 tokens
  Get release notes. Use this when the user asks what changed between two versions of a package, or what to watch for in an upgrade, such as "what changed in express between 4.18.2 and 5.1.0?" or "are there breaking changes from requests 2.28 to 2.32?". Pass the npm or PyPI package name (or a GitHub r
• lookup_rfc ~228 tokens
  Use this when the user asks about an RFC, such as "which RFC obsoletes RFC 2616?" or "find the RFC about WebSocket". Pass either the RFC number, or words from its title (not both). A number returns the title, status, publication date, authors, abstract, and the RFCs it obsoletes, is obsoleted by, up

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