MCP, MCP server
io.github.SMABoundless/crossref
An MCP (Model Context Protocol) server for searching and retrieving scholarly metadata from the CrossRef REST API — 150M+ records across all publishers and disciplines.
Compatibility: Not stated.
Grade B
Minor issues only, no Medium or High. Worth a quick look at the findings below before installing.
Not a guarantee. A hygiene check of the source at the commit shown, not a security audit.
Rescanned at commit 7e71b39e53b3, unchanged since the check below.
INSTALL_UNPINNED NETWORK_NO_FIXED_HOST SECRETS_PATH_DOTENV
Why this grade
- INSTALL_UNPINNED Low
Dependencies use a range or git URL with no lockfile.
requirements.txt, line 1
mcp - NETWORK_NO_FIXED_HOST Low
Makes a network call whose host is not written as a fixed address.
server.py, line 71
resp = requests.get(url, params=params, headers=headers, timeout=30) - SECRETS_PATH_DOTENV Low
Mentions a .env file.
README.md, line 38
cp .env.example .env
Any High, or two or more Medium findings, give D. One Medium gives C. Low findings or a security Note give B. Each code names a finding behind the letter.
Grades are a hygiene check of the source at the commit shown, on the date checked, not a security audit or a guarantee. The free directory grades are automated. Before release, a PlugVet engineer reviews every paid report and any grade we hold back, including all F grades, against the source code and the evidence we quote.
What was checked
Plain notes from the hygiene checks.
Permissions
Pass
No shell or command execution found, and no extra permission was declared.
Install and update
Concern
dependencies are not pinned.
INSTALL_UNPINNED
requirements.txt, line 1
mcp
Network
Concern
can reach a host that is not written as a fixed address.
NETWORK_NO_FIXED_HOST
server.py, line 71
resp = requests.get(url, params=params, headers=headers, timeout=30)
src/crossref_mcp_server/server.py, line 71
resp = requests.get(url, params=params, headers=headers, timeout=30)
Secrets
Concern
reads a credential or environment file.
SECRETS_PATH_DOTENV
.gitignore, line 3
*.pyc
README.md, line 38
cp .env.example .env
README.md, line 39
# Edit .env with your email address
Agent instructions
Pass
No instruction to ignore earlier instructions or to hide a step.
Obfuscation
Pass
No encoded or minified payload found.
Licence
Pass
A licence file is present (LICENSE).
Maintainer activity
Pass
The latest commit is within the last 365 days.
Note
Hygiene check of commit 7e71b39e53b3. dependencies are not pinned. can reach a host that is not written as a fixed address. reads a credential or environment file.
Date and source
Date checked:
github.com
Commit graded: 7e71b39e53b39f3f5cd03b53d3b607d367ba601f
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