mcp server
Fetter MCP
Real-time Python package and vulnerability data for AI coding agents.
Description as published by the maintainer. Source
- version 1.0.1
- slowing
- security
slowing — Most recent push to the repository was 2026-02-26. Dashed tags are derived by ZBS Index from the published description, not stated by the maintainer.
What this server can do
3 functions, named and described by the server itself. Parameter names are shown because they say more about what a function does than its name usually does.
is_vulnerable(name)- Check if a specific package version has known vulnerabilities. Requires an exact version specifier (e.g., 'requests==2.31.0'). Required: name.
lookup(name, limit, cvss_filter, retain_passing)- Look up a package by name and (optionally) version number to find which versions are available and/or have vulnerabilities. Required: name.
most_recent_not_vulnerable(name)- Find the most recent version of a package that has no known vulnerabilities. Required: name.
Last successful function declaration observed on . Source: https://mcp.fetter.io/mcp. We list what the server declared; we do not call any of these functions.
Endpoint status observed on . Source: https://mcp.fetter.io/mcp.
Signals
These are separate measurements of different things. They are deliberately not combined into one score, because a popularity number that mixes website traffic with saves and stars cannot be checked or acted on.
| Signal | Value | What it measures | Window | Observed | Source |
|---|---|---|---|---|---|
| GitHub stars | 1 | Number of GitHub accounts that bookmarked this repository since it was created. It is a bookmark count, not installs, not active users and not quality. | cumulative, all time | GitHub | |
| Last commit | 2026-02-26 | Date of the most recent push to any branch. This is the strongest cheap indicator of whether the project is still maintained. | point in time | GitHub | |
| Open issues | 0 | Open issues plus open pull requests, as GitHub counts them together. A high number can mean an active project or an abandoned one. | as of fetch | GitHub | |
| Latest published version | 1.0.1 | Latest version string the maintainer published to the registry. | as of fetch | Model Context Protocol | |
| Registry record last updated | 2026-02-26 | When the registry record was last updated by its maintainer. | point in time | Model Context Protocol | |
| First listed in the MCP Registry | 2026-02-26 | Date this server was first published to the official MCP Registry. Not a usage or quality measure. | point in time | Model Context Protocol | |
| repository status | active | The repository exists on GitHub and is not archived. This says nothing about how recently it was worked on. | as of fetch | GitHub | |
| mcp tools declared | 3 tools | Number of functions the server itself declared when asked to list them. This is what the server offers an agent, not a measure of how well any of them work. | as of probe | mcp.fetter.io | |
| mcp endpoint status | ok | The server listed 3 functions when asked. | as of probe | mcp.fetter.io |
Where to get it
Related, by what their authors tagged them
-
io.github.cyanheads/nist-nvd-mcp-server
— last commit 2026-07-31, shares vulnerability
Search and audit NIST NVD CVEs by keyword, severity, CWE, CISA KEV status, and CPE.
-
io.github.cyanheads/osv-advisory-mcp-server
— last commit 2026-07-30, shares vulnerability
Query OSV.dev for package vulnerabilities and batch-audit dependency lists via MCP.
-
Closeread Verify
— last commit 2026-06-11, shares vulnerability
A verified dependency-audit verdict any AI agent can call over MCP, not a raw scan.
These share tags the maintainers applied themselves, such as vulnerability. Common tags like "mcp" or "ai" are ignored for this: agreeing with six hundred other projects is not a similarity.
This is not a recommendation and not a test result. It is a map of what the authors said their work is about.
How the author describes it
Topics the maintainer set on GitHub: mcp-server, python, vulnerability.
This record as data
Every field on this page, with its source and observation date, is in the catalog JSON. Fetch the whole kind at once instead of parsing this HTML.
GET /api/v1/entries/mcp_server.json