mcp 0.21.0

The official Ruby SDK for Model Context Protocol servers and clients

Gemfile:
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install:
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Versions:

0.21.0 June 20, 2026 (93.5 KB)
0.20.0 June 14, 2026 (90 KB)
0.19.0 June 13, 2026 (83.5 KB)
0.18.0 May 30, 2026 (80.5 KB)
0.17.0 May 20, 2026 (79.5 KB)

Show all versions (26 total)

Runtime Dependencies (1):

json_schemer >= 2.4

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Authors:

Model Context Protocol

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Source Commit

modelcontextprotocol/ruby-sdk@db460e5

Build File

.github/workflows/release.yml

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Total downloads 6,685,339

For this version 344

Version Released:
June 20, 2026 1:15pm

License:
Apache-2.0

Required Ruby Version: >= 2.7.0

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