Product update · October 30, 2026: Powerduck desktop and browser workspaces require Google OAuth or GitHub sign-in. AI uses platform-managed models. Free credits reset daily; Pro and Max credits reset every seven days under monthly subscriptions. Software activation licenses and one-time model packs have been retired. Current plans.

AI in API tooling usually comes with a quiet trade: your requests, your schemas and your company's API designs get uploaded to the vendor's cloud, parsed on their servers, and sometimes used to train the next model. For early-stage products and internal APIs alike, that is a non-starter.

Powerduck's approach is different: AI works across the entire API lifecycle, while the local file stays the source of truth.

Where AI actually helps in an API lifecycle

Not a chat bolted onto the sidebar — AI that reads and writes the same document you do:

  • Design: describe a resource in plain language and get a proposed operation with schemas, status codes and examples.
  • Import and triage: paste a cURL command or a Postman collection and let AI normalize it into clean, consistent OpenAPI.
  • Test generation: turn an operation into scenarios, assertions and edge cases, including the unhappy paths people forget.
  • Debugging: hand a failed response or a confusing error to the assistant and get a grounded explanation that references your spec, not generic advice.
  • Refinement: tell a proposal "use ISO 4217 currency codes" or "split billing address into its own schema" and watch the plan update before anything is applied.

Plan, review, apply, revert

AI never edits your file by stealth. Every proposal appears as a plan with the affected operations marked. Applying a proposal creates a revision with a full diff, and any revision can be reverted. Your manual edits are preserved: proposals are patches against the current document, not regenerations that overwrite your work.

That review-and-revert loop is what makes AI safe to use on a spec you care about. You stay the author.

Platform-managed models and account credits

Sign in with Google OAuth or GitHub on desktop or in the browser. Powerduck routes AI requests through its managed provider pool; custom API keys and model endpoints are no longer supported. Selected prompts and source context are sent to those providers.

Free includes daily credits. Pro and Max are monthly subscriptions whose credits reset every seven days. AI Chat, code-quality review and test proposals share the balance. Review P0–P3 findings with file and line evidence, inspect test drafts before creating them, and compare captured code changes in the quality workspace.

Try it on real input

Grab the messiest cURL command from your team's chat, drop it into a fresh spec, and ask the assistant to turn it into a documented, tested operation. Review the plan, apply it, revert it, apply it again — while remembering that the working file remains local but selected AI context is transmitted to the managed provider.

One local OpenAPI spec, an AI-native workspace around it. Start with your own API.

This is part of a larger workflow; the Postman alternatives hub collects the related decisions and keeps them in sync.