Trello

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

Quick Start

bash

# Get boards for current user
python <<'EOF'
import urllib.request, os, json
req = urllib.request.Request('https://gateway.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

code

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

Replace {native-api-path} with the actual Trello API endpoint path. The gateway proxies requests to api.trello.com and automatically injects your OAuth token.

Authentication

All requests require the Maton API key in the Authorization header:

code

Authorization: Bearer $MATON_API_KEY

Environment Variable: Set your API key as MATON_API_KEY:

bash

export MATON_API_KEY="YOUR_API_KEY"

Getting Your API Key

•Sign in or create an account at maton.ai
•Go to maton.ai/settings
•Copy your API key

Connection Management

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

List Connections

bash

python <<'EOF'
import urllib.request, os, json
req = urllib.request.Request('https://ctrl.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

bash

python <<'EOF'
import urllib.request, os, json
data = json.dumps({'app': 'trello'}).encode()
req = urllib.request.Request('https://ctrl.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

bash

python <<'EOF'
import urllib.request, os, json
req = urllib.request.Request('https://ctrl.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:

json

{
  "connection": {
    "connection_id": "21fd90f9-5935-43cd-b6c8-bde9d915ca80",
    "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

bash

python <<'EOF'
import urllib.request, os, json
req = urllib.request.Request('https://ctrl.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 with the Maton-Connection header:

bash

python <<'EOF'
import urllib.request, os, json
req = urllib.request.Request('https://gateway.maton.ai/trello/1/members/me/boards')
req.add_header('Authorization', f'Bearer {os.environ["MATON_API_KEY"]}')
req.add_header('Maton-Connection', '21fd90f9-5935-43cd-b6c8-bde9d915ca80')
print(json.dumps(json.load(urllib.request.urlopen(req)), indent=2))
EOF

If omitted, the gateway uses the default (oldest) active connection.

API Reference

Members

Get Current Member

bash

GET /trello/1/members/me

Get Member's Boards

bash

GET /trello/1/members/me/boards

Query parameters:

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

Boards

Get Board

bash

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:

bash

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

Create Board

bash

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

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

Update Board

bash

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

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

Delete Board

bash

DELETE /trello/1/boards/{id}

Get Board Lists

bash

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

Query parameters:

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

Get Board Cards

bash

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

Get Board Members

bash

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

Lists

Get List

bash

GET /trello/1/lists/{id}

Create List

bash

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

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

Update List

bash

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

{
  "name": "In Progress"
}

Archive List

bash

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

{
  "value": true
}

Get Cards in List

bash

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

Move All Cards in List

bash

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

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

Cards

Get Card

bash

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)

Create Card

bash

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"]
}

Update Card

bash

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

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

Move Card to List

bash

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

{
  "idList": "NEW_LIST_ID",
  "pos": "top"
}

Delete Card

bash

DELETE /trello/1/cards/{id}

Add Comment to Card

bash

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

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

Add Member to Card

bash

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

{
  "value": "MEMBER_ID"
}

Remove Member from Card

bash

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

Add Label to Card

bash

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

{
  "value": "LABEL_ID"
}

Checklists

Get Checklist

bash

GET /trello/1/checklists/{id}

Create Checklist

bash

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

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

Create Checklist Item

bash

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

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

Update Checklist Item

bash

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

{
  "state": "complete"
}

Delete Checklist

bash

DELETE /trello/1/checklists/{id}

Labels

Get Board Labels

bash

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

Create Label

bash

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)

Update Label

bash

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

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

Delete Label

bash

DELETE /trello/1/labels/{id}

Search

Search All

bash

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)

Code Examples

JavaScript

javascript

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

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

// Create card
await fetch(
  'https://gateway.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

python

import os
import requests

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

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

# Create card
response = requests.post(
    'https://gateway.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

Status	Meaning
400	Missing Trello connection or invalid request
401	Invalid or missing Maton API key
404	Board, list, or card not found
429	Rate limited (10 req/sec per account)
4xx/5xx	Passthrough error from Trello API

Troubleshooting: Invalid API Key

When you receive a "Invalid API key" error, ALWAYS follow these steps before concluding there is an issue:

•Check that the MATON_API_KEY environment variable is set:

bash

echo $MATON_API_KEY

•Verify the API key is valid by listing connections:

bash

python <<'EOF'
import urllib.request, os, json
req = urllib.request.Request('https://ctrl.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

Trello

Quick Start

Base URL

Authentication

Getting Your API Key

Connection Management

List Connections

Create Connection

Get Connection

Delete Connection

Specifying Connection

API Reference

Members

Get Current Member

Get Member's Boards

Boards

Get Board

Create Board

Update Board

Delete Board

Get Board Lists

Get Board Cards

Get Board Members

Lists

Get List

Create List

Update List

Archive List

Get Cards in List

Move All Cards in List

Cards

Get Card

Create Card

Update Card

Move Card to List

Delete Card

Add Comment to Card

Add Member to Card

Remove Member from Card

Add Label to Card

Checklists

Get Checklist

Create Checklist

Create Checklist Item

Update Checklist Item

Delete Checklist

Labels

Get Board Labels

Create Label

Update Label

Delete Label

Search

Search All

Code Examples

JavaScript

Python

Notes

Error Handling

Troubleshooting: Invalid API Key

Resources