Fastmcp MCP Server by PrefectHQ
by PrefectHQ🚀 The fast, Pythonic way to build MCP servers and clients.
Fastmcp is an open-source mcp server by PrefectHQ, written mainly in Python, with 28,258 GitHub stars and the Apache-2.0 license. Its code was last updated Nov 1, 2026.
Scan summary: scanned Nov 5, 2026 at commit 9e553dd. Seen able to connect to the internet. Scan policy
ScannedScanned. The automated checks below ran on the commit shown. Read each line for what was and was not covered.
Full scan at
9e553dd · Nov 5, 2026 ScannedStatic, secrets and dependency checks completed with no critical findings. BuildsIt installed from a fresh machine.
Warning. This check found something worth reading in the findings below. It is not proof of a problem.Static code scanwarnWarning. This check found something worth reading in the findings below. It is not proof of a problem.
Flagged. This check found an issue. See the findings below.Secrets scanfailFlagged. This check found an issue. See the findings below.
Flagged. This check found an issue. See the findings below.Dependency audit55 known vulnerabilitiesfailFlagged. This check found an issue. See the findings below.
Warning. This check found something worth reading in the findings below. It is not proof of a problem.ManifestnonewarnWarning. This check found something worth reading in the findings below. It is not proof of a problem.
Passed. This check ran and found nothing it flags.BuildpassPassed. This check ran and found nothing it flags.
Not applicable. This check does not apply to this kind of project, or it was not run in this scan.Boot & handshaken/aNot applicable. This check does not apply to this kind of project, or it was not run in this scan.
Warning. This check found something worth reading in the findings below. It is not proof of a problem.Network egresswarnWarning. This check found something worth reading in the findings below. It is not proof of a problem.
Not applicable. This check does not apply to this kind of project, or it was not run in this scan.Reproducible (×3)n/aNot applicable. This check does not apply to this kind of project, or it was not run in this scan.
Findings (38)
- highHigh. Something risky that needs a close look before you install.dropper issueDetails are available to the maintainer after claiming this listing.
- highHigh. Something risky that needs a close look before you install.secrets issueDetails are available to the maintainer after claiming this listing.
- highHigh. Something risky that needs a close look before you install.dependencies issueDetails are available to the maintainer after claiming this listing.
- highHigh. Something risky that needs a close look before you install.dependencies issueDetails are available to the maintainer after claiming this listing.
- mediumMedium. Worth checking, often a vulnerable dependency or a setup problem.dnspython@2.8.0: 3 known vulnerabilitiesGHSA-45c3-73f7-pv4m, GHSA-45c3-73f7-pv4m, GHSA-45c3-73f7-pv4m
examples/smart_home/uv.lock - mediumMedium. Worth checking, often a vulnerable dependency or a setup problem.pyasn1@0.6.4: 8 known vulnerabilitiesGHSA-2qm8-x737-gmw5, GHSA-9m75-vc3g-4x39, GHSA-fm9c-5rcf-2q5p, GHSA-mm57-4v3p-rchx, GHSA-2qm8-x737-gmw5 +3 more
examples/smart_home/uv.lock - mediumMedium. Worth checking, often a vulnerable dependency or a setup problem.joserfc@1.7.1: 2 known vulnerabilitiesGHSA-9pg5-8c7x-5hfx, GHSA-jpxq-7h8p-2q76
examples/testing_demo/uv.lock - mediumMedium. Worth checking, often a vulnerable dependency or a setup problem.mcp@1.28.1: 4 known vulnerabilitiesGHSA-5h93-6whr-6q8j, GHSA-84m7-p3x7-pcfv, GHSA-rwrf-2pqf-9j8j, GHSA-w4fh-qvv9-3v23
examples/testing_demo/uv.lock - mediumMedium. Worth checking, often a vulnerable dependency or a setup problem.black@26.5.1: 1 known vulnerabilityGHSA-cg8m-r9f2-5wm2
uv.lock - mediumMedium. Worth checking, often a vulnerable dependency or a setup problem.joserfc@1.7.4: 2 known vulnerabilitiesGHSA-9pg5-8c7x-5hfx, GHSA-jpxq-7h8p-2q76
uv.lock - mediumMedium. Worth checking, often a vulnerable dependency or a setup problem.Install contacted hosts other than package registriesreleases.astral.sh
- lowLow. Minor, or common in normal tools. Shown for information.Possible example credential in docs/tests: curl-auth-header
docs/.cursor/rules/mintlify.mdc:99 - lowLow. Minor, or common in normal tools. Shown for information.Possible example credential in docs/tests: generic-api-key
docs/fastmcp-analytics.js:6 - lowLow. Minor, or common in normal tools. Shown for information.Possible example credential in docs/tests: generic-api-key3 matches in this file
docs/integrations/google.mdx:77 - lowLow. Minor, or common in normal tools. Shown for information.Possible example credential in docs/tests: generic-api-key
docs/v2/servers/auth/oidc-proxy.mdx:254 - lowLow. Minor, or common in normal tools. Shown for information.Possible example credential in docs/tests: generic-api-key
docs/v2/integrations/auth0.mdx:257 - lowLow. Minor, or common in normal tools. Shown for information.Possible example credential in docs/tests: generic-api-key2 matches in this file
docs/v3/integrations/google.mdx:77 - lowLow. Minor, or common in normal tools. Shown for information.Possible example credential in docs/tests: generic-api-key
docs/v2/integrations/github.mdx:234 - lowLow. Minor, or common in normal tools. Shown for information.Possible example credential in docs/tests: generic-api-key2 matches in this file
docs/v2/integrations/azure.mdx:366 - lowLow. Minor, or common in normal tools. Shown for information.Possible example credential in docs/tests: generic-api-key3 matches in this file
docs/v2/integrations/google.mdx:78 - lowLow. Minor, or common in normal tools. Shown for information.Possible example credential in docs/tests: generic-api-key
docs/servers/auth/oauth-proxy.mdx:431 - lowLow. Minor, or common in normal tools. Shown for information.Possible example credential in docs/tests: curl-auth-header3 matches in this file
fastmcp_slim/fastmcp/contrib/component_manager/README.md:113 - lowLow. Minor, or common in normal tools. Shown for information.Possible example credential in docs/tests: generic-api-key5 matches in this file
tests/server/auth/providers/test_discord.py:24 - lowLow. Minor, or common in normal tools. Shown for information.Possible example credential in docs/tests: generic-api-key10 matches in this file
tests/server/auth/providers/test_google.py:31 - lowLow. Minor, or common in normal tools. Shown for information.Possible example credential in docs/tests: generic-api-key
tests/utilities/json_schema_type/test_real_world_schemas.py:79 - lowLow. Minor, or common in normal tools. Shown for information.Possible example credential in docs/tests: generic-api-key2 matches in this file
tests/tasks/server/test_snapshot_encryption.py:152 - lowLow. Minor, or common in normal tools. Shown for information.Possible example credential in docs/tests: private-key
tests/server/auth/test_jwt_provider.py:208 - lowLow. Minor, or common in normal tools. Shown for information.Possible example credential in docs/tests: generic-api-key
tests/server/auth/test_jwt_provider.py:88 - lowLow. Minor, or common in normal tools. Shown for information.fastmcp@4.0.10: 2 known vulnerabilitiesGHSA-7xgj-8392-5q4r, GHSA-vqqp-x5qm-5qp4
examples/smart_home/uv.lock - lowLow. Minor, or common in normal tools. Shown for information.fastmcp-slim@4.0.10: 2 known vulnerabilitiesGHSA-7xgj-8392-5q4r, GHSA-vqqp-x5qm-5qp4
examples/smart_home/uv.lock - lowLow. Minor, or common in normal tools. Shown for information.joserfc@1.7.5: 1 known vulnerabilityGHSA-9pg5-8c7x-5hfx
examples/smart_home/uv.lock - lowLow. Minor, or common in normal tools. Shown for information.opentelemetry-api@1.45.0: 1 known vulnerabilityGHSA-xcq7-p3pf-p88h
examples/smart_home/uv.lock - lowLow. Minor, or common in normal tools. Shown for information.fastmcp@3.2.0: 1 known vulnerabilityGHSA-7xgj-8392-5q4r
examples/testing_demo/uv.lock - lowLow. Minor, or common in normal tools. Shown for information.opentelemetry-api@1.40.0: 1 known vulnerabilityGHSA-xcq7-p3pf-p88h
examples/testing_demo/uv.lock - lowLow. Minor, or common in normal tools. Shown for information.opentelemetry-api@1.44.0: 1 known vulnerabilityGHSA-xcq7-p3pf-p88h
uv.lock - lowLow. Minor, or common in normal tools. Shown for information.No manifest declaring network access and environment variables (agent.json)
- lowLow. Minor, or common in normal tools. Shown for information.Couldn't work out how to start the server. Set "entrypoint" in agent.json.
- infoInfo. A note about the project, not a problem.Ignored the repo's scanner suppression config (1 file).gitleaks.toml
Network activity
During install
files.pythonhosted.orgpypi.orgreleases.astral.sh
While running
Not run — the code wasn't started in this scan
Automated result for the commit shown. See our scan policy. View the scan log
Maintainers can claim the listing to rescan, or dispute a result.
Fastmcp alternatives
View more →Similar mcp servers in Coding Agents, ranked by GitHub stars. Compare licence, recent activity and scan status before you choose.
| Name | Stars | Licence | Last updated | Scan |
|---|---|---|---|---|
| Fastmcp (this page) PrefectHQ | 28k | Apache-2.0 | Nov 1, 2026 | Scanned, no flagged issues |
| Context Mode mksglu | 33k | None found | Nov 1, 2026 | Not scanned yet |
| Serena oraios | 31k | None found | Oct 28, 2026 | Not scanned yet |
| Nuclear nukeop | 19k | AGPL-3.0 | Nov 1, 2026 | Scanned, no flagged issues |
| MCP For Beginners microsoft | 18k | MIT | Oct 30, 2026 | Scanned, no flagged issues |
| Trail Code trailhq | 11k | MIT | Oct 31, 2026 | Scanned, no flagged issues |