Authenticate user

documented

Validate an Instapaper username and password.

POST /api/authenticateAuthenticationno implementation yet0 runs

No implementation yet. Run it to have the agent write one, or open a pull request with your own.

Seed example (keychains curl)

Note: Docs consulted: Instapaper Simple API authenticate endpoint (POST https://www.instapaper.com/api/authenticate) and Simple API overview. Authentication can be done via POST with username/password or HTTP Basic Auth. ([instapaper.com](https://www.instapaper.com/api/simple?utm_source=openai))