
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`:

```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 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

Status	Meaning
400	Bad request or missing Asana connection
401	Invalid or missing Maton API key
403	Forbidden - insufficient permissions
404	Resource not found
429	Rate limited
4xx/5xx	Passthrough error from Asana API

Troubleshooting: API Key Issues

Check that the MATON_API_KEY environment variable is set:

echo $MATON_API_KEY

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

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

Getting Your API Key

Connection Management

List Connections

Create Connection

Get Connection

Delete Connection

Specifying Connection

API Reference

Tasks

Get Multiple Tasks

Get a Task

Create a Task

Update a Task

Delete a Task

Get Tasks from a Project

Get Subtasks

Create Subtask

Search Tasks (Premium)

Projects

Get Multiple Projects

Get a Project

Create a Project

Update a Project

Delete a Project

Workspaces

Get Multiple Workspaces

Get a Workspace

Update a Workspace

Add User to Workspace

Remove User from Workspace

Users

Get Multiple Users

Get Current User

Get a User

Get Users in a Team

Get Users in a Workspace

Webhooks

Get Multiple Webhooks

Create Webhook

Get a Webhook

Update a Webhook

Delete a Webhook

Pagination

Code Examples

JavaScript

Python

Notes

Error Handling

Troubleshooting: API Key Issues

Troubleshooting: Invalid App Name

Resources

asana

Asana

Quick Start

Base URL