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Asana

Access the Asana API with managed OAuth authentication. Manage tasks, projects, workspaces, users, and webhooks for work management.

Quick Start

python <<'EOF'
import urllib.request, os, json
req = urllib.request.Request('https://gateway.maton.ai/asana/api/1.0/tasks?project=PROJECT_GID')
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://gateway.maton.ai/asana/{native-api-path}

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

Authentication

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

Authorization: Bearer $MATON_API_KEY

Environment Variable: Set your API key as MATON_API_KEY:

export MATON_API_KEY="YOUR_API_KEY"

Getting Your API Key

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

Connection Management

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

List Connections

python <<'EOF'
import urllib.request, os, json
req = urllib.request.Request('https://ctrl.maton.ai/connections?app=asana&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

python <<'EOF'
import urllib.request, os, json
data = json.dumps({'app': 'asana'}).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

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:

{
  "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": "asana",
    "metadata": {}
  }
}

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

Delete Connection

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 Asana connections, specify which one to use with the Maton-Connection header:

python <<'EOF'
import urllib.request, os, json
req = urllib.request.Request('https://gateway.maton.ai/asana/api/1.0/tasks?project=PROJECT_GID')
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

Tasks

Get Multiple Tasks

GET /asana/api/1.0/tasks

Query parameters:

• project - Project GID to filter tasks
• assignee - User GID or "me" for assigned tasks
• workspace - Workspace GID (required if no project specified)
• completed_since - ISO 8601 date to filter tasks completed after this date
• opt_fields - Comma-separated list of fields to include

Example:

python <<'EOF'
import urllib.request, os, json
req = urllib.request.Request('https://gateway.maton.ai/asana/api/1.0/tasks?project=1234567890&opt_fields=name,completed,due_on')
req.add_header('Authorization', f'Bearer {os.environ["MATON_API_KEY"]}')
print(json.dumps(json.load(urllib.request.urlopen(req)), indent=2))
EOF

Response:

{
  "data": [
    {
      "gid": "1234567890",
      "name": "Review quarterly report",
      "completed": false,
      "due_on": "2025-03-15"
    }
  ]
}

Get a Task

GET /asana/api/1.0/tasks/{task_gid}

Example:

python <<'EOF'
import urllib.request, os, json
req = urllib.request.Request('https://gateway.maton.ai/asana/api/1.0/tasks/1234567890')
req.add_header('Authorization', f'Bearer {os.environ["MATON_API_KEY"]}')
print(json.dumps(json.load(urllib.request.urlopen(req)), indent=2))
EOF

Create a Task

POST /asana/api/1.0/tasks
Content-Type: application/json

{
  "data": {
    "name": "New task",
    "projects": ["PROJECT_GID"],
    "assignee": "USER_GID",
    "due_on": "2025-03-20",
    "notes": "Task description here"
  }
}

Example:

python <<'EOF'
import urllib.request, os, json
data = json.dumps({'data': {'name': 'Complete API integration', 'projects': ['1234567890'], 'due_on': '2025-03-20'}}).encode()
req = urllib.request.Request('https://gateway.maton.ai/asana/api/1.0/tasks', 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

Update a Task

PUT /asana/api/1.0/tasks/{task_gid}

Example:

python <<'EOF'
import urllib.request, os, json
data = json.dumps({'data': {'completed': True}}).encode()
req = urllib.request.Request('https://gateway.maton.ai/asana/api/1.0/tasks/1234567890', data=data, method='PUT')
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

Delete a Task

DELETE /asana/api/1.0/tasks/{task_gid}

Get Tasks from a Project

GET /asana/api/1.0/projects/{project_gid}/tasks

Get Subtasks

GET /asana/api/1.0/tasks/{task_gid}/subtasks

Create Subtask

POST /asana/api/1.0/tasks/{task_gid}/subtasks
Content-Type: application/json

{
  "data": {
    "name": "Subtask name",
    "assignee": "USER_GID",
    "due_on": "2025-03-20"
  }
}

Search Tasks (Premium)

Note: This endpoint requires an Asana Premium subscription.

GET /asana/api/1.0/workspaces/{workspace_gid}/tasks/search

Query parameters:

• text - Text to search for
• assignee.any - Filter by assignees
• projects.any - Filter by projects
• completed - Filter by completion status

Projects

Get Multiple Projects

GET /asana/api/1.0/projects

Query parameters:

• workspace - Workspace GID
• team - Team GID
• opt_fields - Comma-separated list of fields

Example:

python <<'EOF'
import urllib.request, os, json
req = urllib.request.Request('https://gateway.maton.ai/asana/api/1.0/projects?workspace=1234567890&opt_fields=name,owner,due_date')
req.add_header('Authorization', f'Bearer {os.environ["MATON_API_KEY"]}')
print(json.dumps(json.load(urllib.request.urlopen(req)), indent=2))
EOF

Response:

{
  "data": [
    {
      "gid": "1234567890",
      "name": "Q1 Marketing Campaign",
      "owner": {
        "gid": "0987654321",
        "name": "Alice Johnson"
      },
      "due_date": "2025-03-31"
    }
  ]
}

Get a Project

GET /asana/api/1.0/projects/{project_gid}

Create a Project

POST /asana/api/1.0/projects

Example:

python <<'EOF'
import urllib.request, os, json
data = json.dumps({'data': {'name': 'New Project', 'workspace': '1234567890', 'notes': 'Project description'}}).encode()
req = urllib.request.Request('https://gateway.maton.ai/asana/api/1.0/projects', 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

Update a Project

PUT /asana/api/1.0/projects/{project_gid}

Delete a Project

DELETE /asana/api/1.0/projects/{project_gid}

Workspaces

Get Multiple Workspaces

GET /asana/api/1.0/workspaces

Example:

python <<'EOF'
import urllib.request, os, json
req = urllib.request.Request('https://gateway.maton.ai/asana/api/1.0/workspaces')
req.add_header('Authorization', f'Bearer {os.environ["MATON_API_KEY"]}')
print(json.dumps(json.load(urllib.request.urlopen(req)), indent=2))
EOF

Response:

{
  "data": [
    {
      "gid": "1234567890",
      "name": "Acme Corp",
      "is_organization": true
    }
  ]
}

Get a Workspace

GET /asana/api/1.0/workspaces/{workspace_gid}

Update a Workspace

PUT /asana/api/1.0/workspaces/{workspace_gid}

Add User to Workspace

POST /asana/api/1.0/workspaces/{workspace_gid}/addUser

Remove User from Workspace

POST /asana/api/1.0/workspaces/{workspace_gid}/removeUser

Users

Get Multiple Users

GET /asana/api/1.0/users

Query parameters:

• workspace - Workspace GID to filter users

Example:

python <<'EOF'
import urllib.request, os, json
req = urllib.request.Request('https://gateway.maton.ai/asana/api/1.0/users?workspace=1234567890&opt_fields=name,email')
req.add_header('Authorization', f'Bearer {os.environ["MATON_API_KEY"]}')
print(json.dumps(json.load(urllib.request.urlopen(req)), indent=2))
EOF

Response:

{
  "data": [
    {
      "gid": "1234567890",
      "name": "Alice Johnson",
      "email": "alice.johnson@acme.com"
    }
  ]
}

Get Current User

GET /asana/api/1.0/users/me

Get a User

GET /asana/api/1.0/users/{user_gid}

Get Users in a Team

GET /asana/api/1.0/teams/{team_gid}/users

Get Users in a Workspace

GET /asana/api/1.0/workspaces/{workspace_gid}/users

Webhooks

Get Multiple Webhooks

GET /asana/api/1.0/webhooks

Query parameters:

• workspace - Workspace GID (required)
• resource - Resource GID to filter by

Example:

python <<'EOF'
import urllib.request, os, json
req = urllib.request.Request('https://gateway.maton.ai/asana/api/1.0/webhooks?workspace=1234567890')
req.add_header('Authorization', f'Bearer {os.environ["MATON_API_KEY"]}')
print(json.dumps(json.load(urllib.request.urlopen(req)), indent=2))
EOF

Create Webhook

Note: Asana verifies the target URL is reachable and responds with a 200 status during webhook creation.

POST /asana/api/1.0/webhooks
Content-Type: application/json

{
  "data": {
    "resource": "PROJECT_OR_TASK_GID",
    "target": "https://example.com/webhook",
    "filters": [
      {
        "resource_type": "task",
        "action": "changed",
        "fields": ["completed", "due_on"]
      }
    ]
  }
}

Example:

python <<'EOF'
import urllib.request, os, json
data = json.dumps({'data': {'resource': '1234567890', 'target': 'https://example.com/webhook'}}).encode()
req = urllib.request.Request('https://gateway.maton.ai/asana/api/1.0/webhooks', 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

Response:

{
  "data": {
    "gid": "1234567890",
    "resource": {
      "gid": "1234567890",
      "name": "Q1 Project"
    },
    "target": "https://example.com/webhook",
    "active": true
  }
}

Get a Webhook

GET /asana/api/1.0/webhooks/{webhook_gid}

Update a Webhook

PUT /asana/api/1.0/webhooks/{webhook_gid}

Delete a Webhook

DELETE /asana/api/1.0/webhooks/{webhook_gid}

Returns 200 OK with empty data on success.

Pagination

Asana uses cursor-based pagination. Use offset for pagination:

python <<'EOF'
import urllib.request, os, json
req = urllib.request.Request('https://gateway.maton.ai/asana/api/1.0/tasks?project=1234567890&limit=50&offset=OFFSET_TOKEN')
req.add_header('Authorization', f'Bearer {os.environ["MATON_API_KEY"]}')
print(json.dumps(json.load(urllib.request.urlopen(req)), indent=2))
EOF

Response includes next_page when more results exist:

{
  "data": [...],
  "next_page": {
    "offset": "eyJ0eXBlIjoib2Zmc2V0IiwidmFsdWUiOjUwfQ",
    "path": "/tasks?project=1234567890&limit=50&offset=eyJ0eXBlIjoib2Zmc2V0IiwidmFsdWUiOjUwfQ",
    "uri": "https://app.asana.com/api/1.0/tasks?project=1234567890&limit=50&offset=eyJ0eXBlIjoib2Zmc2V0IiwidmFsdWUiOjUwfQ"
  }
}

Code Examples

JavaScript

const response = await fetch(
  'https://gateway.maton.ai/asana/api/1.0/tasks?project=1234567890',
  {
    headers: {
      'Authorization': `Bearer ${process.env.MATON_API_KEY}`
    }
  }
);
const data = await response.json();

Python

import os
import requests

response = requests.get(
    "https://gateway.maton.ai/asana/api/1.0/tasks",
    headers={"Authorization": f"Bearer {os.environ['MATON_API_KEY']}"},
    params={"project": "1234567890"},
)
data = response.json()

Notes

• Resource IDs (GIDs) are strings
• Timestamps are in ISO 8601 format
• Use opt_fields to specify which fields to return
• Workspaces are the highest-level organizational unit
• Organizations are specialized workspaces representing companies
• 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

1. Check that the MATON_API_KEY environment variable is set:

echo $MATON_API_KEY

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

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

Troubleshooting: Invalid App Name

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

• Correct: https://gateway.maton.ai/asana/api/1.0/tasks
• Incorrect: https://gateway.maton.ai/api/1.0/tasks

Resources

• Asana API Documentation
• API Reference
• LLM Reference
• Maton Community
• Maton Support