generated: '2026-09-12' method: searched source: https://registry.npmjs.org, https://pypi.org, https://proxy.golang.org, https://search.maven.org, https://github.com/aeternity, https://docs.aeternity.com/aeternity-developer-tools/development-infrastructure/sdks-and-apis note: >- Only the JavaScript/TypeScript line is maintained. The npm SDK shipped 15.0.0 on 2026-09-07, one day after node v7.3.0 — the tightest SDK/protocol coupling in this repo. Every other language binding has decayed: the CLI last published 2025-01-30, the calldata library 2024-12-09, the Python SDK 2020-01-31 and the Go SDK 2019-03-26, and æternity's own docs file the Python/Go/Elixir/PHP bindings under "Outdated SDKs". The Java SDK is community-managed (kryptokrauts), which the docs state outright. packages: - name: '@aeternity/aepp-sdk' registry: npm language: JavaScript/TypeScript official: true version: 15.0.0 published: '2026-09-07' url: https://www.npmjs.com/package/@aeternity/aepp-sdk repository: https://github.com/aeternity/aepp-sdk-js docs: https://docs.aeternity.com/developer-documentation/aepp-sdk-js note: The first-party SDK; tracks node releases closely. - name: '@aeternity/aepp-cli' registry: npm language: JavaScript/TypeScript official: true version: 7.0.0 published: '2025-01-30' url: https://www.npmjs.com/package/@aeternity/aepp-cli repository: https://github.com/aeternity/aepp-cli-js note: Command-line interface; see cli/aeternity-cli.yml. 19 months behind the SDK it wraps. - name: '@aeternity/aepp-calldata' registry: npm language: JavaScript official: true version: 1.9.1 published: '2024-12-09' url: https://www.npmjs.com/package/@aeternity/aepp-calldata repository: https://github.com/aeternity/aepp-calldata-js note: Sophia contract calldata encode/decode library, used by the SDK. - name: aepp-sdk registry: pypi language: Python official: true version: 7.0.0 published: '2020-01-31' url: https://pypi.org/project/aepp-sdk/ repository: https://github.com/aeternity/aepp-sdk-python status: abandoned note: >- Last release predates node v7 by four years and every protocol change since. Listed by æternity under "Outdated SDKs". - name: github.com/aeternity/aepp-sdk-go registry: go language: Go official: true version: v1.0.2 published: '2019-03-26' url: https://pkg.go.dev/github.com/aeternity/aepp-sdk-go repository: https://github.com/aeternity/aepp-sdk-go status: abandoned note: Read from proxy.golang.org @latest. Listed under "Outdated SDKs". - name: com.kryptokrauts:aepp-sdk-java registry: maven language: Java official: false version: 3.0.1 published: '2022-01-11' url: https://central.sonatype.com/artifact/com.kryptokrauts/aepp-sdk-java repository: https://github.com/kryptokrauts/aepp-sdk-java note: >- Community-managed, not first-party — the æternity docs Java SDK page says "This page may not be up to date as this is a community managed SDK." counts: total: 6 official: 5 abandoned: 2