Use case
The page is rarely the problem. The login is.
LinkedIn, Instagram, your job portals, your shop: everything worth automating sits behind an account, and that is where most agent runs end. Here the agent signs in to the accounts you already have, reads the confirmation code from that profile's own inbox, and is still signed in the next day.
The password never reaches the agent
You save it once, encrypted, on your own computer. The agent only says which field to fill. The password is typed for it and appears in no prompt and no log.
Codes land in the profile's own inbox
Bind an email address to each profile. When a site sends a code or a sign-in link, the agent reads it there, and a saved authenticator key gives it the six digits that change every 30 seconds.
The session is still there tomorrow
Cookies and passkeys stay in the profile through a crash, an update and a closed window. The next run starts signed in instead of logging in again.
Guides for this job
- LinkedIn MCP: let an AI agent work LinkedIn without the APIHow an AI agent works LinkedIn through an MCP server: what the official API allows, what a browser signed in as you reaches, and what we measured.
- Instagram MCP: post and reply with an AI agent, no APIWhat an Instagram MCP server can do: the official API covers professional accounts only, 100 posts in 24 hours, and a signed-in browser covers any account.
- Facebook MCP: an AI agent for your groups, pages and DMsA Facebook MCP server on Meta's Graph API cannot reach groups since 22 April 2024. What a browser signed in to your profile reads, and what 4 signed-out runs showed.
- AI job applications: Workday wants an account by step 3What an AI agent meets when it applies to jobs: we opened real postings on Greenhouse, Lever, Workday, LinkedIn, Indeed and Upwork and counted every step.
- Substack API: the official MCP can't publish, an agent canSubstack's official MCP server only reads publication data. What an AI agent can do on Substack in your signed-in browser, and what we measured logged out.
- WhatsApp MCP: answer your chats with an AI agent, no APIMeta's WhatsApp Business Platform is closed to general-purpose AI assistants. How an agent uses your own WhatsApp through WhatsApp Web, with 3 signed-out runs.