generated: '2026-08-30' method: searched source: registry.npmjs.org, pypi.org, crates.io, proxy.golang.org, repo1.maven.org, api.nuget.org, rubygems.org, github.com release feeds provider: Agentic AI Foundation providerId: agentic-ai-foundation description: First-party client libraries, SDKs and reference servers published by the projects the Agentic AI Foundation hosts. The Model Context Protocol SDKs are published by the modelcontextprotocol GitHub organisation (the project AAIF governs); goose and agentgateway ship binaries from GitHub releases rather than a language registry. note: >- AAIF itself publishes no packages under its own name. Every entry below is published by an AAIF-hosted project (MCP, goose, agentgateway) and is marked official:true only where the registry metadata resolves to that project's own GitHub organisation. packages: - name: '@modelcontextprotocol/sdk' registry: npm url: https://www.npmjs.com/package/@modelcontextprotocol/sdk language: typescript official: true project: Model Context Protocol repository: https://github.com/modelcontextprotocol/typescript-sdk version: 1.30.0 published: '2026-07-27' - name: '@modelcontextprotocol/inspector' registry: npm url: https://www.npmjs.com/package/@modelcontextprotocol/inspector language: typescript official: true project: Model Context Protocol repository: https://github.com/modelcontextprotocol/inspector version: 2.4.0 published: '2026-08-26' note: Developer tool for testing and debugging MCP servers, not a client library. - name: '@modelcontextprotocol/server-everything' registry: npm url: https://www.npmjs.com/package/@modelcontextprotocol/server-everything language: typescript official: true project: Model Context Protocol repository: https://github.com/modelcontextprotocol/servers version: 2026.8.18 published: '2026-08-18' note: Reference MCP server exercising every protocol feature; date-versioned. - name: mcp registry: pypi url: https://pypi.org/project/mcp/ language: python official: true project: Model Context Protocol repository: https://github.com/modelcontextprotocol/python-sdk version: 2.1.1 published: '2026-08-25' - name: rmcp registry: crates.io url: https://crates.io/crates/rmcp language: rust official: true project: Model Context Protocol repository: https://github.com/modelcontextprotocol/rust-sdk version: 3.1.4 published: '2026-08-20' - name: github.com/modelcontextprotocol/go-sdk registry: pkg.go.dev url: https://pkg.go.dev/github.com/modelcontextprotocol/go-sdk language: go official: true project: Model Context Protocol repository: https://github.com/modelcontextprotocol/go-sdk version: v1.7.0 published: '2026-07-27' - name: io.modelcontextprotocol.sdk:mcp registry: maven url: https://repo1.maven.org/maven2/io/modelcontextprotocol/sdk/mcp/ language: java official: true project: Model Context Protocol repository: https://github.com/modelcontextprotocol/java-sdk version: 2.0.1 published: '2026-08-19' note: >- Date read from the Maven Central maven-metadata.xml lastUpdated field (20260819143251); Maven Central publishes no per-artifact release date endpoint. The same coordinate group also ships mcp-bom, mcp-core, mcp-json, mcp-spring-webflux, mcp-spring-webmvc, server-servlet and conformance-tests. - name: io.modelcontextprotocol:kotlin-sdk registry: maven url: https://repo1.maven.org/maven2/io/modelcontextprotocol/kotlin-sdk/ language: kotlin official: true project: Model Context Protocol repository: https://github.com/modelcontextprotocol/kotlin-sdk version: 0.15.0 published: '2026-07-28' note: Date from maven-metadata.xml lastUpdated (20260728). - name: ModelContextProtocol registry: nuget url: https://www.nuget.org/packages/ModelContextProtocol language: csharp official: true project: Model Context Protocol repository: https://github.com/modelcontextprotocol/csharp-sdk version: 2.2.0 published: '2026-08-13' - name: mcp registry: rubygems url: https://rubygems.org/gems/mcp language: ruby official: true project: Model Context Protocol repository: https://github.com/modelcontextprotocol/ruby-sdk version: 1.4.0 published: '2026-08-28' - name: goose registry: github-releases url: https://github.com/aaif-goose/goose/releases language: rust official: true project: goose repository: https://github.com/aaif-goose/goose version: v1.48.0 published: '2026-08-27' note: >- goose is distributed as signed platform binaries from GitHub releases and as the Homebrew cask block-goose; there is no language-registry package. Version and date read from the repository's releases.atom feed. The `goose` crate on crates.io is an unrelated load-testing tool (tag1consulting/goose) and is deliberately excluded. - name: agentgateway registry: github-releases url: https://github.com/agentgateway/agentgateway/releases language: rust official: true project: agentgateway repository: https://github.com/agentgateway/agentgateway version: v1.5.0 published: '2026-08-27' - name: mcp-publisher registry: github-releases url: https://github.com/modelcontextprotocol/registry/releases language: go official: true project: Official MCP Registry repository: https://github.com/modelcontextprotocol/registry version: v1.8.1 published: '2026-08-06' note: >- The registry repository ships the mcp-publisher CLI alongside the server; version and date are the repository's latest tagged release, not a per-binary registry record. sdk_count: 8 maintainers: - FN: Kin Lane email: info@apievangelist.com