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Available · Apple notarized BuildAPlugin API workspace on macOS
Universal macOS app Apple Silicon and Intel

Free public beta

BuildAPlugin macOS Public Beta

A programmable desktop API workspace with a JavaScript plugin runtime for building, testing, and adapting API tools.

FreeNo payment method required
  • Signed by Melvin Ollewagen and notarized by Apple
  • No account, email address, checkout, or payment method required
  • Bot-protected download link expires after five minutes
  • Beta expires 11 August 2026 at 22:00 UTC
Download for macOS

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What is included

API workspaceRequests, headers, bodies, responses, collections, variables, imports, and exports.
Plugin runtimeBuild local CommonJS plugins that add UI, commands, hooks, and workflow automation.
Native bridgesBluetooth, media, files, secure storage, system information, and platform diagnostics.

Install the beta

1. Download Click Download for macOS. No account or email address is required.
2. Install Open BuildAPlugin-macOS-1.0.0-build4.zip and drag Build A Plugin.app into Applications.
3. Launch Open the app normally; the notarized build is accepted by Gatekeeper.
4. Report bugs Use the in-app feedback button or beta support form.