Trello

Trello

Access the Trello API with managed OAuth authentication. Manage boards, lists, cards, checklists, labels, and members for project and task management.

Quick Start

CLI:

maton trello board list

maton api '/trello/1/members/me/boards'

Python:

python <<'EOF'
import urllib.request, os, json
req = urllib.request.Request('https://api.maton.ai/trello/1/members/me/boards')
req.add_header('Authorization', f'Bearer {os.environ["MATON_API_KEY"]}')
print(json.dumps(json.load(urllib.request.urlopen(req)), indent=2))
EOF

Base URL

https://api.maton.ai/trello/{native-api-path}

Maton proxies requests to api.trello.com and automatically injects your OAuth token.

Installation

NPM:

npm install -g @maton/cli

Homebrew:

brew install maton-ai/cli/maton

Authentication

CLI:

maton login                          # Opens browser for API key
maton login --interactive            # Skip browser, paste API key directly
maton whoami                         # Show current auth state

Manual:

1. Sign in or create an account at maton.ai
2. Go to maton.ai/settings
3. Copy your API key
4. Set your API key as MATON_API_KEY:

export MATON_API_KEY="YOUR_API_KEY"

Connection Management

Manage your Trello OAuth connections at https://api.maton.ai.

List Connections

CLI:

maton connection list trello --status ACTIVE

maton api -X GET /connections -f app=trello -f status=ACTIVE

Python:

python <<'EOF'
import urllib.request, os, json
req = urllib.request.Request('https://api.maton.ai/connections?app=trello&status=ACTIVE')
req.add_header('Authorization', f'Bearer {os.environ["MATON_API_KEY"]}')
print(json.dumps(json.load(urllib.request.urlopen(req)), indent=2))
EOF

Create Connection

CLI:

maton connection create trello

maton api /connections -f app=trello

Python:

python <<'EOF'
import urllib.request, os, json
data = json.dumps({'app': 'trello'}).encode()
req = urllib.request.Request('https://api.maton.ai/connections', data=data, method='POST')
req.add_header('Authorization', f'Bearer {os.environ["MATON_API_KEY"]}')
req.add_header('Content-Type', 'application/json')
print(json.dumps(json.load(urllib.request.urlopen(req)), indent=2))
EOF

Get Connection

CLI:

maton connection view {connection_id}

maton api /connections/{connection_id}

Python:

python <<'EOF'
import urllib.request, os, json
req = urllib.request.Request('https://api.maton.ai/connections/{connection_id}')
req.add_header('Authorization', f'Bearer {os.environ["MATON_API_KEY"]}')
print(json.dumps(json.load(urllib.request.urlopen(req)), indent=2))
EOF

Response:

{
  "connection": {
    "connection_id": "{connection_id}",
    "status": "ACTIVE",
    "creation_time": "2025-12-08T07:20:53.488460Z",
    "last_updated_time": "2026-01-31T20:03:32.593153Z",
    "url": "https://connect.maton.ai/?session_token=...",
    "app": "trello",
    "metadata": {}
  }
}

Open the returned url in a browser to complete OAuth authorization.

Delete Connection

CLI:

maton connection delete {connection_id}

maton api -X DELETE /connections/{connection_id}

Python:

python <<'EOF'
import urllib.request, os, json
req = urllib.request.Request('https://api.maton.ai/connections/{connection_id}', method='DELETE')
req.add_header('Authorization', f'Bearer {os.environ["MATON_API_KEY"]}')
print(json.dumps(json.load(urllib.request.urlopen(req)), indent=2))
EOF

Specifying Connection

If you have multiple Trello connections, specify which one to use:

CLI:

maton trello board list --connection {connection_id}

maton api /trello/1/members/me/boards --connection {connection_id}

Python:

python <<'EOF'
import urllib.request, os, json
req = urllib.request.Request('https://api.maton.ai/trello/1/members/me/boards')
req.add_header('Authorization', f'Bearer {os.environ["MATON_API_KEY"]}')
req.add_header('Maton-Connection', '{connection_id}')
print(json.dumps(json.load(urllib.request.urlopen(req)), indent=2))
EOF

If you have multiple connections, always specify the connection to ensure requests go to the intended account.

Security & Permissions

• Access is scoped to boards, lists, cards, members, and labels within the connected Trello account.
• All write operations require explicit user approval. Before executing any create, update, or delete call, confirm the target resource and intended effect with the user.

API Reference

Members

Get Current Member

GET /trello/1/members/me

Example:

maton trello whoami

Get a Member

GET /trello/1/members/{id}

Example:

maton trello member view me
maton trello member view 5f1a2b3c4d5e6f7a8b9c0d1e

Get Member's Boards

GET /trello/1/members/me/boards

Query parameters:

• filter - Filter boards: all, open, closed, members, organization, starred
• fields - Comma-separated fields to include

Example:

maton trello board list --filter all

Boards

Get Board

GET /trello/1/boards/{id}

Query parameters:

• fields - Comma-separated fields
• lists - Include lists: all, open, closed, none
• cards - Include cards: all, open, closed, none
• members - Include members: all, none

Example:

maton trello board view BOARD_ID --lists open --cards open

Create Board

POST /trello/1/boards
Content-Type: application/json

{
  "name": "Project Alpha",
  "desc": "Main project board",
  "defaultLists": false,
  "prefs_permissionLevel": "private"
}

Example:

maton trello board create --name 'Project Alpha' --desc 'Main project board' --permission private

Update Board

PUT /trello/1/boards/{id}
Content-Type: application/json

{
  "name": "Project Alpha - Updated",
  "desc": "Updated description"
}

Example:

maton trello board update BOARD_ID --name 'Project Alpha - Updated' --desc 'Updated description'

Delete Board

DELETE /trello/1/boards/{id}

Example:

maton trello board delete BOARD_ID

Get Board Lists

GET /trello/1/boards/{id}/lists

Query parameters:

• filter - Filter: all, open, closed, none

Example:

maton trello list list --board BOARD_ID --filter open

Get Board Cards

GET /trello/1/boards/{id}/cards

Example:

maton trello card list --board BOARD_ID

Get Board Members

GET /trello/1/boards/{id}/members

Example:

maton trello member list --board BOARD_ID

Lists

Get List

GET /trello/1/lists/{id}

Example:

maton trello list view LIST_ID

Create List

POST /trello/1/lists
Content-Type: application/json

{
  "name": "To Do",
  "idBoard": "BOARD_ID",
  "pos": "top"
}

Example:

maton trello list create --board BOARD_ID --name 'To Do' --pos top

Update List

PUT /trello/1/lists/{id}
Content-Type: application/json

{
  "name": "In Progress"
}

Example:

maton trello list update LIST_ID --name 'In Progress'

Archive List

PUT /trello/1/lists/{id}/closed
Content-Type: application/json

{
  "value": true
}

Example:

maton trello list update LIST_ID --closed

Get Cards in List

GET /trello/1/lists/{id}/cards

Example:

maton trello card list --list LIST_ID

Move All Cards in List

POST /trello/1/lists/{id}/moveAllCards
Content-Type: application/json

{
  "idBoard": "BOARD_ID",
  "idList": "TARGET_LIST_ID"
}

Example:

maton trello card move --from-list LIST_ID --to-list TARGET_LIST_ID --to-board BOARD_ID

Cards

Get Card

GET /trello/1/cards/{id}

Query parameters:

• fields - Comma-separated fields
• members - Include members (true/false)
• checklists - Include checklists: all, none
• attachments - Include attachments (true/false)

Example:

maton trello card view CARD_ID --members --checklists all

Create Card

POST /trello/1/cards
Content-Type: application/json

{
  "name": "Implement feature X",
  "desc": "Description of the task",
  "idList": "LIST_ID",
  "pos": "bottom",
  "due": "2025-03-30T12:00:00.000Z",
  "idMembers": ["MEMBER_ID"],
  "idLabels": ["LABEL_ID"]
}

Example:

maton trello card create --list LIST_ID --name 'Implement feature X' --desc 'Description of the task' --due 2025-03-30T12:00:00.000Z --member-ids MEMBER_ID --label-ids LABEL_ID

Update Card

PUT /trello/1/cards/{id}
Content-Type: application/json

{
  "name": "Updated card name",
  "desc": "Updated description",
  "due": "2025-04-15T12:00:00.000Z"
}

Example:

maton trello card update CARD_ID --name 'Updated card name' --desc 'Updated description' --due 2025-04-15T12:00:00.000Z

Move Card to List

PUT /trello/1/cards/{id}
Content-Type: application/json

{
  "idList": "NEW_LIST_ID"
}

Example:

maton trello card update CARD_ID --list NEW_LIST_ID

Archive Card

Example:

maton trello card update CARD_ID --closed

Delete Card

DELETE /trello/1/cards/{id}

Example:

maton trello card delete CARD_ID

Add Comment to Card

POST /trello/1/cards/{id}/actions/comments
Content-Type: application/json

{
  "text": "This is a comment"
}

Example:

maton trello card comment CARD_ID --text 'This is a comment'

Add Member to Card

POST /trello/1/cards/{id}/idMembers
Content-Type: application/json

{
  "value": "MEMBER_ID"
}

Example:

maton trello card assign CARD_ID --member MEMBER_ID

Remove Member from Card

DELETE /trello/1/cards/{id}/idMembers/{idMember}

Example:

maton trello card unassign CARD_ID --member MEMBER_ID

Add Label to Card

POST /trello/1/cards/{id}/idLabels
Content-Type: application/json

{
  "value": "LABEL_ID"
}

Example:

maton trello card label CARD_ID --label LABEL_ID

Checklists

Get Checklist

GET /trello/1/checklists/{id}

Example:

maton trello checklist view CHECKLIST_ID

Create Checklist

POST /trello/1/checklists
Content-Type: application/json

{
  "idCard": "CARD_ID",
  "name": "Task Checklist"
}

Example:

maton trello checklist create --card CARD_ID --name 'Task Checklist'

Create Checklist Item

POST /trello/1/checklists/{id}/checkItems
Content-Type: application/json

{
  "name": "Subtask 1",
  "pos": "bottom"
}

Example:

maton trello checkitem create --checklist CHECKLIST_ID --name 'Subtask 1' --pos bottom

Update Checklist Item

PUT /trello/1/cards/{cardId}/checkItem/{checkItemId}
Content-Type: application/json

{
  "state": "complete"
}

Example:

maton trello checkitem update CHECKITEM_ID --card CARD_ID --state complete

Delete Checklist

DELETE /trello/1/checklists/{id}

Example:

maton trello checklist delete CHECKLIST_ID

Labels

Get Board Labels

GET /trello/1/boards/{id}/labels

Example:

maton trello label list --board BOARD_ID

Create Label

POST /trello/1/labels
Content-Type: application/json

{
  "name": "High Priority",
  "color": "red",
  "idBoard": "BOARD_ID"
}

Colors: yellow, purple, blue, red, green, orange, black, sky, pink, lime, null (no color)

Example:

maton trello label create --board BOARD_ID --name 'High Priority' --color red

Update Label

PUT /trello/1/labels/{id}
Content-Type: application/json

{
  "name": "Critical",
  "color": "red"
}

Example:

maton trello label update LABEL_ID --name Critical --color red

Delete Label

DELETE /trello/1/labels/{id}

Example:

maton trello label delete LABEL_ID

Search

Search All

GET /trello/1/search?query=keyword&modelTypes=cards,boards

Query parameters:

• query - Search query (required)
• modelTypes - Comma-separated: actions, boards, cards, members, organizations
• board_fields - Fields to return for boards
• card_fields - Fields to return for cards
• cards_limit - Max cards to return (1-1000)

Example:

maton trello search --query keyword --models cards,boards

Code Examples

CLI

# List boards as JSON
maton trello board list --json

# Filter with jq — e.g., only open boards by name
# Note: --jq requires --json
maton trello board list --json --jq '.[] | select(.closed == false) | .name'

# Extract specific fields from cards in a list
maton trello card list --list LIST_ID --json --jq '.[] | {id, name, due}'

JavaScript

const headers = {
  'Authorization': `Bearer ${process.env.MATON_API_KEY}`
};

// Get boards
const boards = await fetch(
  'https://api.maton.ai/trello/1/members/me/boards',
  { headers }
).then(r => r.json());

// Create card
await fetch(
  'https://api.maton.ai/trello/1/cards',
  {
    method: 'POST',
    headers: { ...headers, 'Content-Type': 'application/json' },
    body: JSON.stringify({
      name: 'New Task',
      idList: 'LIST_ID',
      desc: 'Task description'
    })
  }
);

Python

import os
import requests

headers = {'Authorization': f'Bearer {os.environ["MATON_API_KEY"]}'}

# Get boards
boards = requests.get(
    'https://api.maton.ai/trello/1/members/me/boards',
    headers=headers
).json()

# Create card
response = requests.post(
    'https://api.maton.ai/trello/1/cards',
    headers=headers,
    json={
        'name': 'New Task',
        'idList': 'LIST_ID',
        'desc': 'Task description'
    }
)

Notes

• IDs are 24-character alphanumeric strings
• Use me to reference the authenticated user
• Dates are in ISO 8601 format
• pos can be top, bottom, or a positive number
• Card positions within lists are floating point numbers
• Use fields parameter to limit returned data and improve performance
• Archived items can be retrieved with filter=closed
• IMPORTANT: When using curl commands, use curl -g when URLs contain brackets (fields[], sort[], records[]) to disable glob parsing
• IMPORTANT: When piping curl output to jq or other commands, environment variables like $MATON_API_KEY may not expand correctly in some shell environments. You may get "Invalid API key" errors when piping.

Error Handling

Troubleshooting: API Key Issues

CLI:

1. Check your auth state:

maton whoami

1. Verify the API key is valid by listing connections:

maton connection list

Manual:

1. Check that the MATON_API_KEY environment variable is set:

echo $MATON_API_KEY

1. Verify the API key is valid by listing connections:

python <<'EOF'
import urllib.request, os, json
req = urllib.request.Request('https://api.maton.ai/connections')
req.add_header('Authorization', f'Bearer {os.environ["MATON_API_KEY"]}')
print(json.dumps(json.load(urllib.request.urlopen(req)), indent=2))
EOF

Troubleshooting: Invalid App Name

1. Ensure your URL path starts with trello. For example:

• Correct: https://api.maton.ai/trello/1/members/me/boards
• Incorrect: https://api.maton.ai/1/members/me/boards

Resources

• Trello API Overview
• Boards
• Lists
• Cards
• Checklists
• Labels
• Members
• Search
• Maton CLI Manual
• Maton Community
• Maton Support