authentication

Open-source email gateway for AI agents with SPF/DKIM verification, HMAC-signed delivery, webhook and WebSocket fan-out, plus CLI and SDK support.

Paid public API for finance built on the Neurobro agent. The docs show API key authentication, a single ask endpoint, tier-based modes, billing, rate limits, errors, examples, and a quickstart.

Homestead is an open-source, self-hosted platform for building and deploying personal apps for you, your family, and AI agents. The page highlights app authentication, offline support, a CLI workflow, AI features, push notifications, and bulk import, with install and docs links visible.

A developer tool for adding Sign in with ChatGPT and using signed-in OpenAI access in apps via a TypeScript SDK and auth headers.

A research write-up on detecting AI agents through process differences in CAPTCHA and related cognitive tasks. It outlines the CogCAPTCHA30 approach, reports human-vs-model differences, and connects the findings to Roundtable’s Proof of Human product.