Metal Mantra / AGENT INTELLIGENCEPublic evidence reportAUTOMATED SIGNAL. NOT CERTIFICATION.
PUBLIC REPORT · ADDED BY METAL MANTRA / AGENT SIGNAL v0.2

fastmcp.

Scanned repository says: Made with 💙 by Prefect

Metal Mantra scanned this public repository on its own initiative; the maintainer did not submit it. Maintainers: scan the repository yourself to take this report over, or contact us.

Inspect GitHub source

28k starsApache-2.0pushed today

0community interest

Votes show community interest, not safety. They never change this score.

AUTOMATED SIGNAL85/100BBBNot security certification
START HERE

Review findings need attention.

Model call without fallback

Inspect the findings
WHAT THIS DOES NOT ESTABLISH

Runtime safety, real-world agent capability, fitness for your use case or independent certification.

Scan scope200 / 441Partial eligible-file selection · not the entire repository
Recorded findings5Heuristic matches requiring human review
SnapshotOct 12, 2026UTC · engine 0.4.0
DNS at scan timeUnverifiedDomain control is not security certification
01 / KNOW THE REPOSITORY

What the source
actually tells us.

Structured, cited information from the scanned archive. Repository-authored claims are labeled and never treated as verified capabilities.

INSPECTED SOURCE200 / 441Partial selection
READMEReadRepository-authored information
MANIFESTS2LICENSE, pyproject.toml

Who it is for

  • Stated purpose · repository says · unreviewed

    Made with 💙 by Prefect

    README.md:15
  • Stated purpose · repository says · unreviewed

    The Model Context Protocol (MCP) connects LLMs to tools and data. FastMCP is a full MCP application framework for servers, clients, and interactive apps. A server starts with ordinary Python:

    README.md:29

What it can do

No explicit capability or integration was extracted; that does not mean none exists.

What adoption takes

  • Stated deployment · repository says · unreviewed

    We recommend adding FastMCP to your project with uv:

    README.md:97
  • Stated prerequisite · manifest declares · unreviewed

    Manifest declares Python >=3.10 as a requirement.

    pyproject.toml:6
  • Stated deployment · repository says · unreviewed

    Upgrading from FastMCP 3

    README.md:106
  • Stated deployment · repository says · unreviewed

    Upgrading from FastMCP 2

    README.md:107

Limits and terms

  • Declared license · manifest declares · unreviewed

    A license or copying file is present; its terms have not been reviewed.

    LICENSE:1

Observed technical context

Python · 200 selected filesModel API reference · static onlyTool-calling reference · static only

These are references in selected source files, not proof that a feature works at runtime.

Read from commit e2fcc41 at Oct 12, 2026, 5:29 AM UTC. Source links open that exact commit. Repository statements are unreviewed and do not affect the score.

02 / FINDINGS FIRST

What needs
a closer look.

Critical details are withheld publicly for the first 30 days after a scan. A matched pattern is a lead for investigation, not a confirmed vulnerability.

Dependencies: 173 exact runtime versions from uv.lock checked against OSV.dev on Oct 12, 2026; 0 with known advisories. Reachability is not checked.

5 findings
MAJOR

Model call without fallback

EFF001 · Token & cost efficiency

A model call has no visible fallback. If the provider fails or is rate limited, the whole agent fails with it.

SUGGESTED ACTION

Configure a secondary model or explicit fallback path for provider failures.

fastmcp_slim/fastmcp/client/sampling/handlers/openai.py:150
MAJOR

Domain ownership not verified

TRUST001 · Entity trust

Metal Mantra could not confirm that the owner controls the stated domain. The domain may belong to someone else.

SUGGESTED ACTION

Verify the domain using the Metal Mantra DNS TXT challenge.

gofastmcp.com · location unavailable
MINOR

Raw model text returned

SCH002 · Schema & tooling

The code returns the model's raw text. Output that was never parsed or validated can pass mistakes straight to users or other systems.

SUGGESTED ACTION

Parse and validate the result before returning it.

fastmcp_slim/fastmcp/server/auth/ssrf.py:414
MINOR

Privacy Policy link not confirmed

TRUST003 · Entity trust

No privacy policy link was found on the stated homepage. Buyers cannot see how the vendor handles their data.

SUGGESTED ACTION

Expose a clear Privacy Policy link on the official homepage.

gofastmcp.com · location unavailable
MINOR

Terms link not confirmed

TRUST004 · Entity trust

No terms link was found on the stated homepage. Buyers cannot see the conditions that apply to using the service.

SUGGESTED ACTION

Expose a clear Terms link on the official homepage.

gofastmcp.com · location unavailable
03 / EVIDENCE & LIMITS

The boundary
is part of the result.

What was scanned
200 of 441 eligible files · Partial selection.
Supported static source patterns and domain checks; no runtime execution.
What remains unknown
Unscanned files, external dependencies, production configuration, actual agent behavior and evidence beyond the configured checks.
Source location
Links open the current repository HEAD. Source may have changed since this snapshot.
Something looks wrong?
Tell us if a finding, scope or claim on this report needs a correction. Report a problem with this report
Entity trust · 15% of v0.2
Includes DNS ownership, HTTPS and policy evidence. Verification is domain control, not a security certificate.
DNS: unverifiedHTTPS: availablePrivacy: not confirmedTerms: not confirmed
04 / THE METHOD BEHIND THE NUMBER

Open the
calculation.

Each pillar starts at 100. Rule deductions reduce its score; weights determine the overall contribution.

01

Security & privacy

0 findings · 25% weight
100/10025.0 pts
02

Guardrails & loop control

0 findings · 25% weight
100/10025.0 pts
03

Schema & tooling

1 findings · 20% weight
92/10018.4 pts
04

Token & cost efficiency

1 findings · 15% weight
86/10012.9 pts
05

Entity trust

3 findings · 15% weight
25/1003.8 pts
Inspect the current standard
USER REPORTS

Did fastmcp work for people?

No user reports yet.

Each report is one signed-in GitHub account saying what happened. We do not verify that the account ran the agent, and reports never change the automated score or grade. For a security problem, use the disclosure page instead of a public note.

Sign in with GitHub to add a report

SHARE THE EVIDENCE

A signal.
Not a seal.

Share the full report so its scope and limits travel with the score.

Metal Mantra automated signal 85/100, not certified