Skip to article
InboxNest
Start free trial
← InboxNest home

Connect InboxNest to Claude, ChatGPT or Claude Code

Paste one URL to let Claude, ChatGPT or Claude Code read your inbox and draft replies, and control exactly what it may do.

The URL to paste

InboxNest works as a remote MCP server. Claude, ChatGPT and Claude Code all use the same address:

https://tryinboxnest.com/mcp

There is no API key to copy. When you add the URL, the app opens an InboxNest page where you sign in (with your password or Google) and choose what the app may do. Click Allow and you are connected. Connecting works on every plan while the account has an active plan or trial.

Connect Claude

  1. In Claude, open the settings for connectors and choose to add a custom connector.
  2. Name it InboxNest and paste the URL above.
  3. Click Connect. Claude opens the InboxNest sign-in and permission page.
  4. Check the account name, keep the permissions you want, and click Allow.

Connect ChatGPT

In ChatGPT, add a custom connector (some plans call these apps, and some need developer mode turned on first), paste the same URL, and choose OAuth sign-in if asked. ChatGPT then opens the InboxNest permission page. Click Allow.

Connect Claude Code

Run this command in your terminal:

claude mcp add --transport http --scope user inboxnest https://tryinboxnest.com/mcp

--scope user makes InboxNest available in every folder. Without it, InboxNest is only available in the folder where you ran the command.

  1. In Claude Code, type /mcp, choose inboxnest, and authenticate.
  2. Your browser opens the InboxNest sign-in and permission page.
  3. Check the account name, keep the permissions you want, and click Allow.

There is no API key. Claude Code gets the same permission choices as Claude and ChatGPT, and you can revoke it and see its actions in the activity log the same way. Because Claude Code runs on your computer, the permission page may warn that the app returns to a local (localhost) address. That is expected for Claude Code.

What each permission means

  • Read your conversations. See conversations, customers, and messages for every product on the account. Reading never marks a conversation as read.
  • Write drafts. Save a suggested reply on a conversation. Nothing is sent: the draft waits in InboxNest for you.
  • Organize conversations. Flag for follow-up, mark as spam, or move to Trash. You can undo each one in InboxNest.
  • Send replies as your brands. Email the customer on a conversation right away, from that product's support address.

Read and Write drafts are ticked by default. Organize and Send only appear when the account owner has turned on AI sending, and you have to tick them yourself. An app only sees the tools for the permissions you allowed.

Reviewing AI drafts

When an app saves a draft, the conversation shows an AI draft from banner above the reply box with three buttons. Send sends it as your reply. Edit puts the text in the reply box so you can change it first. Discard deletes it. Each conversation holds one draft; a new one from the app replaces the old one. If the draft changes after you opened the conversation, InboxNest asks you to look again before it sends.

Letting AI apps send replies

AI sending is off for every account until the account owner turns it on in Settings → Connected AI apps → Allow AI apps to send replies. While it is off, no app can send, even one that was given the Send permission earlier; apps can still save drafts.

An app can never choose who receives a reply or which address it comes from. Replies go to the customer on the conversation, from that product's support address, with the usual subject and threading. Your normal sending limits, suppressed recipients, and safety pauses all still apply, and each connection can send at most 20 replies an hour.

Disconnecting an app

Open Settings → Connected AI apps to see each connected app, its permissions, when it connected, and when it was last used. Click Revoke to disconnect it at once; it would have to ask you again to reconnect. Changing or resetting your password also disconnects every app.

The activity log

The same Settings section lists the last 100 actions AI apps took: when, which app, which tool, which conversation, and whether it worked, was refused, or failed. It never stores message text. Entries are kept for 90 days.

Customer messages and AI apps

Customer emails can contain text that tries to give an AI instructions. InboxNest labels customer-written text as customer content when it hands it to an app, and the app cannot change recipients or senders. Even so, review drafts before sending and keep AI sending off unless you need it.