generated: '2026-10-08' method: searched source: registry.npmjs.org, pypi.org/pypi/sinch/json, search.maven.org (g:com.sinch.sdk), api.nuget.org registration index; SDK pages https://developers.sinch.com/docs/numbers/sdk and https://github.com/sinch name: Sinch SDKs, CLI and MCP packages description: First-party client libraries for Node.js (modular @sinch/* packages), Python, Java and .NET, plus the Sinch CLI, the Sinch MCP server (developer preview) and the Sinch Functions runtimes. Versions and dates read from each registry metadata endpoint on 2026-10-08. sdk_docs: - https://developers.sinch.com/docs/numbers/sdk - https://github.com/sinch/sinch-sdk-node - https://github.com/sinch/sinch-sdk-python - https://github.com/sinch/sinch-sdk-java - https://github.com/sinch/sinch-sdk-dotnet notes: - 'No Go or Ruby SDK found: proxy.golang.org has no github.com/sinch/sinch-sdk-go and rubygems.org has no sinch gem (both 404 on 2026-10-08).' packages: - name: '@sinch/sdk-core' registry: npm url: https://www.npmjs.com/package/@sinch/sdk-core language: TypeScript official: true version: 1.6.0 published: '2026-09-23' note: Meta-package of the Sinch Node.js SDK (github.com/sinch/sinch-sdk-node); registry.npmjs.org time[1.6.0] = 2026-09-23 ownership_audit: metadata names sinch.com - name: '@sinch/sdk-client' registry: npm url: https://www.npmjs.com/package/@sinch/sdk-client language: TypeScript official: true version: 1.6.0 published: '2026-09-23' note: HTTP client core of the Sinch Node.js SDK (github.com/sinch/sinch-sdk-node); registry.npmjs.org time[1.6.0] = 2026-09-23 ownership_audit: metadata names sinch.com - name: '@sinch/conversation' registry: npm url: https://www.npmjs.com/package/@sinch/conversation language: TypeScript official: true version: 1.6.0 published: '2026-09-23' note: Conversation API module (github.com/sinch/sinch-sdk-node); registry.npmjs.org time[1.6.0] = 2026-09-23 ownership_audit: metadata names sinch.com - name: '@sinch/sms' registry: npm url: https://www.npmjs.com/package/@sinch/sms language: TypeScript official: true version: 1.6.0 published: '2026-09-23' note: SMS API module (github.com/sinch/sinch-sdk-node); registry.npmjs.org time[1.6.0] = 2026-09-23 ownership_audit: metadata names sinch.com - name: '@sinch/numbers' registry: npm url: https://www.npmjs.com/package/@sinch/numbers language: TypeScript official: true version: 1.6.0 published: '2026-09-23' note: Numbers API module (github.com/sinch/sinch-sdk-node); registry.npmjs.org time[1.6.0] = 2026-09-23 ownership_audit: metadata names sinch.com - name: '@sinch/verification' registry: npm url: https://www.npmjs.com/package/@sinch/verification language: TypeScript official: true version: 1.6.0 published: '2026-09-23' note: Verification API module (github.com/sinch/sinch-sdk-node); registry.npmjs.org time[1.6.0] = 2026-09-23 ownership_audit: metadata names sinch.com - name: '@sinch/voice' registry: npm url: https://www.npmjs.com/package/@sinch/voice language: TypeScript official: true version: 1.6.0 published: '2026-09-23' note: Voice API module (github.com/sinch/sinch-sdk-node); registry.npmjs.org time[1.6.0] = 2026-09-23 ownership_audit: metadata names sinch.com - name: '@sinch/fax' registry: npm url: https://www.npmjs.com/package/@sinch/fax language: TypeScript official: true version: 1.6.0 published: '2026-09-23' note: Fax API module (github.com/sinch/sinch-sdk-node); registry.npmjs.org time[1.6.0] = 2026-09-23 ownership_audit: metadata names sinch.com - name: '@sinch/number-lookup' registry: npm url: https://www.npmjs.com/package/@sinch/number-lookup language: TypeScript official: true version: 1.6.0 published: '2026-09-23' note: Number Lookup API module (github.com/sinch/sinch-sdk-node); registry.npmjs.org time[1.6.0] = 2026-09-23 ownership_audit: metadata names sinch.com - name: '@sinch/elastic-sip-trunking' registry: npm url: https://www.npmjs.com/package/@sinch/elastic-sip-trunking language: TypeScript official: true version: 1.6.0 published: '2026-09-23' note: Elastic SIP Trunking API module (github.com/sinch/sinch-sdk-node); registry.npmjs.org time[1.6.0] = 2026-09-23 ownership_audit: metadata names sinch.com - name: '@sinch/provisioning' registry: npm url: https://www.npmjs.com/package/@sinch/provisioning language: TypeScript official: true version: 1.6.0 published: '2026-09-23' note: Provisioning API module (github.com/sinch/sinch-sdk-node); registry.npmjs.org time[1.6.0] = 2026-09-23 ownership_audit: metadata names sinch.com - name: '@sinch/cli' registry: npm url: https://www.npmjs.com/package/@sinch/cli language: TypeScript official: true version: 0.8.1 published: '2026-10-08' note: 'Official Sinch CLI (bin: sinch); platform binaries ship as @sinch/cli-{darwin,linux,win32}-{x64,arm64} optional deps; repo github.com/sinch/cli' ownership_audit: metadata names sinch.com - name: '@sinch/mcp' registry: npm url: https://www.npmjs.com/package/@sinch/mcp language: TypeScript official: true version: 0.0.1-alpha.6 published: '2026-04-14' note: 'Sinch MCP Server, developer preview (bin: mcp-server); source github.com/sinch/sinch-mcp-server; Apache-2.0' ownership_audit: metadata names sinch.com - name: '@sinch/functions-runtime' registry: npm url: https://www.npmjs.com/package/@sinch/functions-runtime language: TypeScript official: true version: 0.7.0 published: '2026-10-07' note: Runtime for Sinch Functions (Node.js) ownership_audit: metadata names sinch.com - name: sinch registry: pypi url: https://pypi.org/project/sinch/ language: Python official: true version: 2.2.0 published: '2026-09-21' note: Sinch Python SDK; author Sinch Developer Experience Team ; repo github.com/sinch/sinch-sdk-python ownership_audit: metadata names sinch.com - name: com.sinch.sdk:sinch-sdk-java registry: maven url: https://central.sonatype.com/artifact/com.sinch.sdk/sinch-sdk-java language: Java official: true version: 1.6.0 published: '2025-04-23' note: Sinch Java SDK; search.maven.org latestVersion 1.6.0, timestamp 2025-04-23; repo github.com/sinch/sinch-sdk-java (pushed 2026-10-08, so the registry lags the repo) - name: Sinch registry: nuget url: https://www.nuget.org/packages/Sinch language: C# official: false version: 1.5.1 published: '2026-09-02' note: Sinch .NET SDK; projectUrl developers.sinch.com; repo github.com/sinch/sinch-sdk-dotnet (pushed 2026-09-02) ownership_audit: 'registry metadata names neither the provider''s domain nor its GitHub org: official downgraded (harvest-packages.py --audit)' - name: Sinch.Functions.Runtime registry: nuget url: https://www.nuget.org/packages/Sinch.Functions.Runtime language: C# official: false version: 0.3.22 published: '2026-09-29' note: Runtime for Sinch Functions (.NET); author Sinch ownership_audit: 'registry metadata names neither the provider''s domain nor its GitHub org: official downgraded (harvest-packages.py --audit)' - name: Sinch.ServerSdk registry: nuget url: https://www.nuget.org/packages/Sinch.ServerSdk language: C# official: false version: 2.3.1 published: '2022-08-22' note: Legacy server SDK by Sinch AB (github.com/sinch/nuget-serversdk); superseded by the Sinch package ownership_audit: 'registry metadata names neither the provider''s domain nor its GitHub org: official downgraded (harvest-packages.py --audit)'