Devin Desktop

Devin Desktop is Cognition’s AI code editor, and Devin Local is its agent. Add PostQueen as an MCP server and Devin Local can write posts about your work, schedule them and report how your published posts did.

Before you start

Plans: Free, Pro, Max, Teams and Enterprise. Cognition does not confirm MCP on the Free plan. On Enterprise, an admin must enable Devin Local.
Platforms: macOS, Windows 10 or later, and Linux (glibc 2.28 or later).
A PostQueen API key. A workspace admin copies it, or the ready-made address, from Connections.

Where the API key is: in the app, open Connections > API Keys. Only a workspace Admin or Super Admin can reveal or rotate it; other members see it masked. A workspace has one key, and each agent card on Connections shows your MCP address with the key already filled in.

Connect Devin Desktop

Add PostQueen

Run this in your terminal, with your key in place of YOUR_API_KEY:

devin mcp add -s user postqueen \
  https://api.postqueen.ai/mcp/YOUR_API_KEY

-s user saves it for every project. Without it, it is saved for the current project only.

Open a new agent tab

In Devin Desktop, open a new agent tab so Devin Local loads the server.

Prefer to edit the config file?

Add the server to ~/.config/devin/mcp_config.json, or %APPDATA%\devin\mcp_config.json on Windows:

~/.config/devin/mcp_config.json

{
  "mcpServers": {
    "postqueen": {
      "url": "https://api.postqueen.ai/mcp/YOUR_API_KEY"
    }
  }
}

Check that it works

Ask Devin Local: “List my PostQueen channels.” By default it asks before each tool call; allow the tool, or every PostQueen tool, for the session or permanently. It then answers with the channels you connected.

Good to know

Devin Local asks before every MCP tool call by default. You can allow one PostQueen tool, or every tool on the server, for the session or permanently.
Run devin mcp list to see the servers Devin knows about.
Devin Local can run the command for you if you allow it.
Ask for drafts when you want to check first. A draft waits on your PostQueen calendar, and nothing publishes until you schedule it.
What it cannot do over MCP: delete a post, or change a post’s text or time. Do that on the calendar in the app. The MCP tools lists what it can do.

Other ways to connect

Way	Address	Status
The key in the address	`https://api.postqueen.ai/mcp/YOUR_API_KEY`	From Cognition’s docs. The route above
The Bearer header	`https://api.postqueen.ai/mcp`	From Cognition’s docs
Sign in with PostQueen	`https://api.postqueen.ai/mcp-oauth-dynamic`	Not tested yet

Bearer header
Sign in (not tested yet)

devin mcp add -s user postqueen https://api.postqueen.ai/mcp \
  -H "Authorization: Bearer YOUR_API_KEY"

devin mcp add -s user postqueen \
  https://api.postqueen.ai/mcp-oauth-dynamic
devin mcp login postqueen

Or press Authenticate on PostQueen in Devin Desktop. Devin registers itself and opens the PostQueen sign-in, which a workspace admin approves. The sign-in address has 20 tools, all but ask_postqueen. Revoke access in PostQueen under Connections > Approved Apps.

Try this first

List my PostQueen channels. Then write a short Bluesky post about the change in this branch and save it as a draft for tomorrow at 9am.

The draft appears on your PostQueen calendar, ready for you to check and schedule. Prompts to try has more.

Troubleshooting

Symptom	Fix
Devin Local does not see PostQueen	Open a new agent tab. Run `devin mcp list` to check that the server is saved.
It works in one project only	It was added without `-s user`. Add it again with `-s user`.
Every PostQueen call asks for approval	That is Devin Local’s default. Allow the tool, or every PostQueen tool, for the session or permanently.
PostQueen shows Needs auth	Press Authenticate to sign in again, or use the key address.
The key is refused	Copy it again from Connections > API Keys. Only a workspace Admin or Super Admin can reveal it.

More fixes are on Troubleshooting agents.

Next steps

Every agent

Which agents can post to PostQueen, how each one connects, and what PostQueen has tested.

The MCP tools

What each of the 21 tools does, and what an agent cannot do.

Prompts and tool calls

The order an agent calls the tools in, with prompts that work.

Troubleshooting agents

What to do when a connection or a command fails.

Start here

Assistants and bots

Coding agents

Editors and more

MCP reference

CLI reference

Troubleshooting

Before you start

Connect Devin Desktop

Check that it works

Good to know

Other ways to connect

Try this first

Troubleshooting

Next steps

Every agent

The MCP tools

Prompts and tool calls

Troubleshooting agents

​Before you start

​Connect Devin Desktop

​Check that it works

​Good to know

​Other ways to connect

​Try this first

​Troubleshooting

​Next steps

Every agent

The MCP tools

Prompts and tool calls

Troubleshooting agents

Before you start

Connect Devin Desktop

Check that it works

Good to know

Other ways to connect

Try this first

Troubleshooting

Next steps