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PyPI · pypi:fastmcp

fastmcp active

The fast, Pythonic way to build MCP servers and clients.

The latest stable version of fastmcp is 4.1.8, published on 2026-11-10. Verified by Vigia on 2026-11-13.

Latest stable version4.1.8
Published2026-11-10 20:44:54 UTC
Installpip install --upgrade fastmcp
Requirespython >=3.10
LicenseApache-2.0
Advisories on latest versionnone known
Last verified2026-11-13 09:56:14 UTC
Sourcespypi.org

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Maintenance

Activityactive
Last stable release2026-11-10 20:44:54 UTC · 2 days ago
Stable releases in the last 12 months56
Published versions146

Heuristic based only on release dates; it does not measure issue or security response times.

Version history

VersionPublished
4.1.82026-11-10 20:44:54 UTC
4.1.72026-11-10 02:01:50 UTC
4.1.62026-11-03 02:53:39 UTC
4.1.52026-11-01 20:52:46 UTC
4.1.42026-10-26 06:25:17 UTC
3.4.112026-10-20 22:44:33 UTC
4.1.32026-10-20 22:32:22 UTC
3.4.102026-10-20 14:49:37 UTC
4.1.22026-10-20 14:01:33 UTC
4.1.12026-10-18 02:14:14 UTC
3.4.92026-10-16 20:47:35 UTC
4.1.02026-10-08 22:57:02 UTC
4.0.112026-10-04 16:58:08 UTC
3.4.82026-10-04 16:55:39 UTC
4.0.102026-09-25 17:19:56 UTC
4.0.92026-09-24 14:35:23 UTC
4.0.82026-09-23 23:02:52 UTC
4.0.72026-09-23 20:37:16 UTC
4.0.62026-09-23 18:55:25 UTC
4.0.52026-09-17 17:38:54 UTC

Showing the 20 most recent of 121 versions. JSON

Version compatibility

Newest stable version that declares support for each runtime version (from the requirements published with each version).

RuntimeNewest compatible version
python 3.8none
python 3.9none
python 3.104.1.8
python 3.114.1.8
python 3.124.1.8
python 3.134.1.8

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Frequently asked questions

What is the latest version of fastmcp?

The latest stable version of fastmcp is 4.1.8, published on 2026-11-10. Verified by Vigia on 2026-11-13.

How do I install the latest version of fastmcp?

Run pip install --upgrade fastmcp. The latest stable version is 4.1.8 (verified 2026-11-13).

Is fastmcp deprecated?

No. fastmcp is not marked as deprecated in the registry.

Which Python version does fastmcp require?

fastmcp 4.1.8 declares this requirement: python >=3.10.

Does fastmcp 4.1.8 have known vulnerabilities?

No known advisories affect fastmcp 4.1.8 according to the data Vigia checks.

Is fastmcp still maintained?

fastmcp published 56 stable releases in the last 12 months; the most recent was 2 days ago. Activity: active.

Observed changes

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