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Connect Trello to Codex

To use Trello in Codex, connect your Trello account in Manyplug and add Manyplug to Codex once. Codex then gets 10 Trello tools, for example: “List boards”, “List lists”, and “List cards”. It takes about 4 minutes and works on the free plan.

Connect Trello Free plan, no card

1. Connect Trello in Manyplug

Click “Connect Trello” and paste the key or app password into Manyplug’s form:

A Trello API key and token. Takes about three minutes.

  1. Open the Power-Ups admin and click New: Trello gives API keys to Power-Ups only.Open the Power-Ups admin
  2. Fill in the form: name Manyplug, any workspace, your email. Leave Iframe connector URL empty and click Create.
  3. On the API key tab, click Generate a new API key and copy the key into the form.
  4. Click the Token link next to the key, click Allow and copy the token into the form.
  • The token opens all your boards. You can revoke it in Trello: Settings → Applications.

2. Add Manyplug to Codex

Codex CLI and the IDE extension.

  1. Add the server to ~/.codex/config.toml.
    [mcp_servers.manyplug]
url = "https://manyplug.com/mcp"
  2. Run codex mcp login manyplug and sign in in the browser.

Full guide: Codex

3. Ask Codex

  • Which Trello cards are assigned to me?
  • Add a card “December webinar” to Ideas on the Marketing board.
  • Move the landing page card to Done.
  • What is in Doing on the Product board right now?

What Codex can do in Trello

Each action can be turned off per account, and changes can wait for your OK.

ActionAccess
List boards
Your open boards.
Reads
List lists
Open lists (columns) of a board.
Reads
List cards
Open cards of a board.
Reads
Search cards
Searches cards on all your boards.
Reads
Get a card
Shows a card with its description and labels.
Reads
List comments
Comments of a card, newest first.
Reads
Create a card
Creates a card in a list.
Makes changes
Update a card
Changes the name, description or due date, moves a card to another list or archives it.
Makes changes
Add a comment
Adds a comment to a card.
Makes changes
Delete a card
Deletes a card permanently.
Risky

Questions

Can I connect two Trello accounts to Codex?
Yes. Connect each one in Manyplug under its own name, for example Work and Personal. Codex can use one of them or all at once.
Will Codex change anything in Trello without asking?
By default these actions wait for your approval before they run: “Delete a card”. Other changes follow your rules, which you can make stricter per account.
Do I need an official Trello MCP server for this?
No. Manyplug connects to Trello itself with a key or app password you paste into its form, and gives Codex the tools through one MCP address, together with your other services.
Is it free to connect Codex to Manyplug?
Yes. New workspaces get 14 days of Pro free, then the free plan keeps going with 150 actions a month and up to 3 connected accounts. No card needed. Paid plans start at $5 a month.
Does Codex see my passwords or API keys?
No. Keys are entered on Manyplug’s own pages, stored encrypted with a separate key per account, and the AI only receives tool results.

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