MCP Checkdatabutler
io.github.physics-star-cat/databutler
About databutler
databutler is an MCP server published by the GitHub account physics-star-cat. Verified facts for AI agents: rates, exams, recalls, holidays, and what changed since your cutoff.
It is hosted by the publisher at one address, so there is nothing to install: your AI client connects to it over the internet.
It asks for no keys or passwords.
Version 1.0.0 was published on 4 October 2026, and the source code is public, so you can read it before installing.
Written from the registry entry. 7 automated checks on the registry entry and the live tool descriptions: 4 pass, 0 warn, 0 fail, 3 info. How we check.
What it asks for
This server declares no environment variables, so it asks for no keys or settings.
Checks
| Check | Result | Detail |
|---|---|---|
| Source repository linked | Pass | https://github.com/physics-star-cat/databutler |
| Remote uses HTTPS | Pass | All remote endpoints use https:// |
| Secrets requested | Info | Asks for no secrets |
| Namespace ownership | Info | Name verified via GitHub account physics-star-cat |
| Registry text aimed at the AI | Pass | Description and settings contain no hidden characters or instructions to the AI |
| Tool descriptions read | Info | Lists 11 tools: uk_rates_lookup, exam_topic_paper, domain_provenance, package_provenance, take_home_pay, what_changed_since, get_fact, resolve_fact, coverage, catalogue, call |
| Hidden instructions in tools | Pass | Read every tool description and the server instructions: no hidden characters or instructions to the AI |
Popularity & health: 45 / 100
Worked out from public numbers and our own checks, not from user reviews or ratings. It says how used and how looked-after a server is, not whether it is safe.
0 forks, 0 merged pull requests. Sources: GitHub, npm, PyPI (pypistats.org) and Hacker News (Algolia), fetched 2026-10-31.
What people say
No Hacker News threads link to its source code.
Look further: search Reddit, search Hacker News, read its GitHub issues. These are not reviews we checked.
Facts
| Registry name | io.github.physics-star-cat/databutler |
|---|---|
| Publisher | GitHub account physics-star-cat |
| How the name is verified | Name verified via GitHub account physics-star-cat. The registry ties the name prefix to that account or domain; it does not check the code. |
| Type | Remote: hosted at a URL, nothing to install |
| Remote endpoints | streamable-http https://databutler.dev/api/mcp |
| Version | 1.0.0 |
| Published | |
| Last updated | |
| Source repository | https://github.com/physics-star-cat/databutler |
| Website | https://databutler.dev/api |
| Category | Health & science (assigned by keyword rule, not by hand) |
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