Connectors Guide

Connector from the MCP registry

Signal8

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The address

https://mcp.signal8.ai/mcp
Transport
Streamable HTTP
Sign-in
Optionally, a key in the Authorization header, written Bearer YOUR_KEY. The publisher says: "Bearer token using your Signal8 API key (e.g. "Bearer sk_live_…"). API keys are included with Signal8 Pro; create one at https://signal8.ai/developer/api-keys. Clients that support MCP OAuth (e.g. Claude custom connectors) can omit this header and sign in with their Signal8 account instead."
Published by
signal8.ai (domain checked by the registry)
Registry name
ai.signal8/mcp, version 0.19.0
In the registry since
25 June 2026

How to add Signal8 to Claude

  1. In Claude on the web or desktop, open Customize, then Connectors (Settings > Connectors in some versions).
  2. Press + Add, then Add custom connector.
  3. Name it Signal8, paste the address and press Continue.
  4. Under Request headers, add the header Authorization with the value Bearer YOUR_KEY, your key in place of YOUR_KEY. Press Add. The registry entry says the key is optional: you can also leave the header out and sign in when you connect.
  5. Press Connect next to it and sign in if it asks.
  6. In a chat, press +, then Connectors, to switch it on.

On your phone: connectors belong to your Claude account. Add it once on claude.ai or in the desktop app, and it is in the Claude app for iPhone and Android too: in a chat, press +, then Connectors, and switch it on.

Claude's free plan allows one custom connector; paid plans allow more. On Team and Enterprise plans an owner adds it once under Organization settings > Connectors, and each member then presses Connect. Claude's help page

How to add it to ChatGPT

  1. On chatgpt.com, on a Plus, Pro, Business, Enterprise or Edu plan, turn on Developer mode (Settings > Security and login, or Settings > Apps > Advanced settings in some versions).
  2. Open Settings > Apps and create an app (the + or Create button).
  3. Name it Signal8, paste the address, choose OAuth (or No authentication if the server is open) and press Create.
  4. Sign in when it asks.
  5. In a new chat, press + and pick Signal8.

ChatGPT's custom apps cannot send a key header; choose OAuth, which the registry entry says this server also offers.

ChatGPT's menus move now and then; the idea stays the same: a new app, this address, OAuth. On business plans an admin may have to allow custom apps first.

Claude Code

claude mcp add --transport http signal8 https://mcp.signal8.ai/mcp --header "Authorization: Bearer YOUR_KEY"

Put your key in place of YOUR_KEY. The key is optional here: leave out --header and run /mcp to sign in instead.

Source

This page is made from the official MCP registry on 30 October 2026 and has not been checked by hand. A connector acts as you: check who publishes it before you connect anything that can change your data.