How do I connect PostSnag to Grok?

Connect PostSnag to Grok as a custom connector, then ask Grok about any profile, post, or group you've already captured.

Written By PostSnag

Last updated About 1 hour ago

PostSnag connects to Grok as a custom connector, so you can ask Grok about any profile, post, or group you've already captured without leaving the chat.

Before you start

  • PostSnag MCP is included with Pro and Lifetime. A Free account can add the connector, but every question comes back asking you to upgrade instead of an answer.

  • Your connector link, ready to copy:

    https://api.postsnag.com/mcp

  • Sign in to app.postsnag.com in the same browser first. Grok sends you to a PostSnag sign-in screen partway through, and being signed in already makes that step instant.

  • You've captured at least one profile, post, or group. The connector reads your PostSnag library; with nothing captured yet, there's nothing for it to answer from.

Connecting PostSnag MCP to Grok

  1. Open Connectors in Grok: in the sidebar, open Skills and Connectors, then pick the Connectors tab. Or open this link: https://grok.com/connectors

  2. Start a new connector: click "New Connector" in the top right, then choose Custom.

  3. Name it and paste your MCP link: name it PostSnag, then paste the link.

    https://api.postsnag.com/mcp

  4. Add and sign in: click Add Connector, then log in to your PostSnag account to finish.

Signing in to PostSnag

If you're already signed in to app.postsnag.com in that browser, Grok sends you straight back with nothing to click. If you're not signed in, PostSnag's own sign-in screen opens first: sign in with your email and password or Google, and you land back in Grok, connected. There's no key to create or paste anywhere in this flow, and PostSnag never touches your Facebook login.

Your first questions

Once it's connected, type a plain question straight into Grok. A few to try first:

  • "Which of my captured posts got the most reactions last month?"

  • "Summarize everything I've captured from the creator I follow closest."

  • "What's in my research folder, and which post did best?"

  • "How much of my scan quota do I have left this week?"

  • "Rank my best-performing posts by shares."

Checking it worked

Ask Grok: "How many posts have I captured?"

On Pro or Lifetime, you get a real number back, pulled straight from your own library. That count matches what you'd see on Posts inside your dashboard, since the connector reads the same library. On the Free plan, Grok relays this message instead:

"The PostSnag MCP connector is available to Pro and Lifetime members only. Please upgrade your account at https://postsnag.com to connect Claude, ChatGPT, or Perplexity."

Disconnecting

Remove PostSnag inside Grok's own Connectors settings, and the connection stops right away. Nothing changes inside PostSnag: your library, your scans, and your account stay exactly as they were. You won't lose anything you've already asked about; disconnecting just stops Grok from answering new questions until you reconnect. Reconnect any time with the same link:

https://api.postsnag.com/mcp

Common questions

Where do I find connectors in Grok?

In the sidebar, under Skills and Connectors, then the Connectors tab. "New Connector" sits in the top right; choose Custom, name it PostSnag, and paste the link. Grok asks for the name before the link, the same way ChatGPT does.

Does this work in the Grok apps as well as the web?

Yes. The connector lives on your Grok account, not on one app, so it works at grok.com and in the Grok mobile and desktop apps, with the same link and the same tools.

Is there a plan requirement on Grok's side, like there is for ChatGPT and Perplexity?

There's no known plan requirement on Grok's side, the way there is for ChatGPT and Perplexity. Your PostSnag plan still needs to be Pro or Lifetime either way.

Does connecting this give Grok my Facebook login?

No. PostSnag never holds your Facebook password, and the connector only exposes what you've already captured to your PostSnag library. Your Facebook session stays in your own browser, where the extension uses it.

Do I need to reconnect after upgrading from Free to Pro?

No. The connector doesn't check your plan when you add it, only when you ask a question. Upgrade your PostSnag plan and your next question in Grok works, with nothing to reconnect.

Related articles

  • How do I connect PostSnag to Claude?

  • How do I connect PostSnag to ChatGPT?

  • How do I connect PostSnag to Perplexity?

  • What is PostSnag MCP, and what can I ask my AI?

  • PostSnag MCP isn't answering. What do I check?

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