Does FishOut monitor X for Grok?

Yes, once a day: X is a premium platform on paid plans, and a very busy term is read only in part. Grok’s own search is live, so use it for what is happening on X this hour, and FishOut for triaged posts from X and from Reddit, Hacker News, Bluesky, GitHub, the press and the rest.

Who can add custom connectors in Grok?

xAI says connectors are available to all Grok users. On Business and Enterprise, an admin has to provision a connector in the console before members can use it.

Can I use FishOut from the xAI API?

Yes, as a remote MCP tool with server_url and server_label. Pass a FishOut API key in authorization, and limit allowed_tools to what the job needs.

Does the server have to be public for Grok?

Yes. xAI connects from its own infrastructure and requires the MCP server to be reachable over the public internet. FishOut’s is, at one HTTPS URL.

Has this been tested with Grok?

Not yet. The steps follow xAI’s own documentation. Our recorded live tests so far are Claude Code and Codex.

MCP · Hosted chat and API

Connect FishOut to Grok (Custom MCP Connector)

Grok already searches X live. What FishOut brings it is triage: the X posts it collected once a day, read against your Brief, and Reddit, Hacker News, Bluesky, GitHub, the press and the rest — the conversations Grok cannot see from where it sits.

Start free Read the MCP docs

Setup steps checked against Grok's own documentation on 20 October 2026.

[01] CONNECT IT/ SETUP

Add FishOut to Grok

https://mcp.fishout.ai/mcp, on every plan.

Grok app — add a custom connector

Go to grok.com/connectors, choose New Connector, then Custom, and enter the server URL. On Business and Enterprise, a team admin provisions the connector in the console first.

server url

https://mcp.fishout.ai/mcp

Complete the sign-in

xAI’s page says only to “complete any required authentication” and does not describe the custom-connector sign-in further. FishOut answers with a standard OAuth challenge: sign in, pick the organization and projects, approve.

xAI API — a remote MCP tool

In the Responses API, add a tool of type mcp. allowed_tools keeps every other tool out of context; authorization is sent as the Authorization header, which is where a FishOut API key goes for a server-side job.

POST https://api.x.ai/v1/responses — tools[]

{
  "type": "mcp",
  "server_url": "https://mcp.fishout.ai/mcp",
  "server_label": "fishout",
  "allowed_tools": ["list_mentions", "get_mention"],
  "authorization": "Bearer <FISHOUT_API_KEY>"
}

Check it worked. In the app, ask Grok what the FishOut connector can do. Through the API, a response that lists an mcp_call to list_mentions means the tool reached FishOut.

[02] WORTH KNOWING FIRST/ LIMITS

Before it bites

Stated before you hit them.

FishOut checks X once a day and reads a very busy term only in part. For what is happening on X this hour, Grok’s own search is fresher.

In the native Python SDK the fields are allowed_tool_names and extra_headers, not allowed_tools and headers. The REST names above are the API’s.

Leave allowed_tools out and every one of FishOut’s 115 tools is loaded into context on each request.

xAI’s Responses API does not support require_approval for MCP tools, so a server-side job should be given only read tools.

Not tested by us yet. These steps follow xAI’s documentation, read on 20 October 2026.

[03] WHAT IT LOOKS LIKE/ GROK

A question in Grok

Invented brands; a real call.

Grok · webfishout · mcp

People on X are arguing about our pricing. Is the same thing happening anywhere else?

list_mentionsread-onlyarguments

{
  "filter": {
    "query": "pricing",
    "from": "2026-10-13T00:00:00Z",
    "platforms": [
      "reddit",
      "hackernews",
      "bluesky"
    ]
  },
  "limit": 10
}

r/SaaSmeadowstack1d

Their new per-seat price makes no sense for a team of three

Reply, carefullyComplaint

Hacker Newsdriftwood_eng2d

Per-seat is fine if the free tier stays — does it?

Reply nowQuestion

From my X search: about forty posts, mostly about seat minimums. From FishOut: the same complaint on r/SaaS, and an HN question about whether the free tier stays — that one has a clear answer and is worth replying to.

[04] WATCH ANY PLATFORM/ SAME SERVER