Slack API integration with managed OAuth. Send messages, manage channels, search conversations, and interact with Slack workspaces. Use this skill when users...
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Access the Slack API with managed OAuth authentication. Send messages, manage channels, list users, and automate Slack workflows.
# Post a message to a channel python <<'EOF' import urllib.request, os, json data = json.dumps({'channel': 'C0123456789', 'text': 'Hello from Maton!'}).encode() req = urllib.request.Request('https://gateway.maton.ai/slack/api/chat.postMessage', 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
https://gateway.maton.ai/slack/{method}
The gateway proxies requests to
slack.comAll requests require the Maton API key in the Authorization header:
Authorization: Bearer $MATON_API_KEY
Environment Variable: Set your API key as
MATON_API_KEYexport MATON_API_KEY="YOUR_API_KEY"
Manage your Slack OAuth connections at
https://ctrl.maton.aipython <<'EOF' import urllib.request, os, json req = urllib.request.Request('https://ctrl.maton.ai/connections?app=slack&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
python <<'EOF' import urllib.request, os, json data = json.dumps({'app': 'slack'}).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
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": "slack", "metadata": {} } }
Open the returned
urlpython <<'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
If you have multiple Slack connections, specify which one to use with the
Maton-Connectionpython <<'EOF' import urllib.request, os, json data = json.dumps({'channel': 'C0123456789', 'text': 'Hello!'}).encode() req = urllib.request.Request('https://gateway.maton.ai/slack/api/chat.postMessage', data=data, method='POST') req.add_header('Authorization', f'Bearer {os.environ["MATON_API_KEY"]}') req.add_header('Maton-Connection', '21fd90f9-5935-43cd-b6c8-bde9d915ca80') req.add_header('Content-Type', 'application/json') print(json.dumps(json.load(urllib.request.urlopen(req)), indent=2)) EOF
If omitted, the gateway uses the default (oldest) active connection.
GET /slack/api/auth.test
Returns current user and team info.
POST /slack/api/chat.postMessage Content-Type: application/json{ "channel": "C0123456789", "text": "Hello, world!" }
With blocks:
POST /slack/api/chat.postMessage Content-Type: application/json{ "channel": "C0123456789", "blocks": [ {"type": "section", "text": {"type": "mrkdwn", "text": "Bold and italic"}} ] }
POST /slack/api/chat.postMessage Content-Type: application/json{ "channel": "C0123456789", "thread_ts": "1234567890.123456", "text": "This is a reply in a thread" }
POST /slack/api/chat.update Content-Type: application/json{ "channel": "C0123456789", "ts": "1234567890.123456", "text": "Updated message" }
POST /slack/api/chat.delete Content-Type: application/json{ "channel": "C0123456789", "ts": "1234567890.123456" }
POST /slack/api/chat.scheduleMessage Content-Type: application/json{ "channel": "C0123456789", "text": "Scheduled message", "post_at": 1734567890 }
GET /slack/api/chat.scheduledMessages.list
POST /slack/api/chat.deleteScheduledMessage Content-Type: application/json{ "channel": "C0123456789", "scheduled_message_id": "Q1234567890" }
GET /slack/api/chat.getPermalink?channel=C0123456789&message_ts=1234567890.123456
GET /slack/api/conversations.list?types=public_channel,private_channel&limit=100
Types:
public_channelprivate_channelimmpimGET /slack/api/conversations.info?channel=C0123456789
GET /slack/api/conversations.history?channel=C0123456789&limit=100
With time range:
GET /slack/api/conversations.history?channel=C0123456789&oldest=1234567890&latest=1234567899
GET /slack/api/conversations.replies?channel=C0123456789&ts=1234567890.123456
GET /slack/api/conversations.members?channel=C0123456789&limit=100
POST /slack/api/conversations.create Content-Type: application/json{ "name": "new-channel-name", "is_private": false }
POST /slack/api/conversations.join Content-Type: application/json{ "channel": "C0123456789" }
POST /slack/api/conversations.leave Content-Type: application/json{ "channel": "C0123456789" }
POST /slack/api/conversations.archive Content-Type: application/json{ "channel": "C0123456789" }
POST /slack/api/conversations.unarchive Content-Type: application/json{ "channel": "C0123456789" }
POST /slack/api/conversations.rename Content-Type: application/json{ "channel": "C0123456789", "name": "new-name" }
POST /slack/api/conversations.setTopic Content-Type: application/json{ "channel": "C0123456789", "topic": "Channel topic here" }
POST /slack/api/conversations.setPurpose Content-Type: application/json{ "channel": "C0123456789", "purpose": "Channel purpose here" }
POST /slack/api/conversations.invite Content-Type: application/json{ "channel": "C0123456789", "users": "U0123456789,U9876543210" }
POST /slack/api/conversations.kick Content-Type: application/json{ "channel": "C0123456789", "user": "U0123456789" }
POST /slack/api/conversations.mark Content-Type: application/json{ "channel": "C0123456789", "ts": "1234567890.123456" }
POST /slack/api/conversations.open Content-Type: application/json{ "users": "U0123456789" }
For group DM:
POST /slack/api/conversations.open Content-Type: application/json{ "users": "U0123456789,U9876543210" }
GET /slack/api/conversations.list?types=im
GET /slack/api/conversations.list?types=mpim
GET /slack/api/users.conversations?limit=100
GET /slack/api/users.list?limit=100
GET /slack/api/users.info?user=U0123456789
GET /slack/api/users.getPresence?user=U0123456789
POST /slack/api/users.setPresence Content-Type: application/json{ "presence": "away" }
GET /slack/api/users.lookupByEmail?email=user@example.com
POST /slack/api/reactions.add Content-Type: application/json{ "channel": "C0123456789", "name": "thumbsup", "timestamp": "1234567890.123456" }
POST /slack/api/reactions.remove Content-Type: application/json{ "channel": "C0123456789", "name": "thumbsup", "timestamp": "1234567890.123456" }
GET /slack/api/reactions.get?channel=C0123456789×tamp=1234567890.123456
GET /slack/api/reactions.list?limit=100
GET /slack/api/stars.list?limit=100
POST /slack/api/stars.add Content-Type: application/json{ "channel": "C0123456789", "timestamp": "1234567890.123456" }
POST /slack/api/stars.remove Content-Type: application/json{ "channel": "C0123456789", "timestamp": "1234567890.123456" }
GET /slack/api/bots.info?bot=B0123456789
POST /slack/api/files.upload Content-Type: multipart/form-datachannels=C0123456789 content=file content here filename=example.txt title=Example File
GET /slack/api/files.getUploadURLExternal?filename=example.txt&length=1024
POST /slack/api/files.completeUploadExternal Content-Type: application/json{ "files": [{"id": "F0123456789", "title": "My File"}], "channel_id": "C0123456789" }
POST /slack/api/files.delete Content-Type: application/json{ "file": "F0123456789" }
GET /slack/api/files.info?file=F0123456789
GET /slack/api/search.messages?query=keyword
const response = await fetch('https://gateway.maton.ai/slack/api/chat.postMessage', { method: 'POST', headers: { 'Content-Type': 'application/json', 'Authorization': `Bearer ${process.env.MATON_API_KEY}` }, body: JSON.stringify({ channel: 'C0123456', text: 'Hello!' }) }); const result = await response.json(); console.log(result);
import os import requestsresponse = requests.post( 'https://gateway.maton.ai/slack/api/chat.postMessage', headers={'Authorization': f'Bearer {os.environ["MATON_API_KEY"]}'}, json={'channel': 'C0123456', 'text': 'Hello!'} ) print(response.json())
CGDUBTtsmrkdwnthread_tscursorresponse_metadata.next_cursorcurl -gfields[]sort[]records[]jq$MATON_API_KEY| Status | Meaning |
|---|---|
| 400 | Missing Slack connection |
| 401 | Invalid or missing Maton API key |
| 429 | Rate limited (10 req/sec per account) |
| 4xx/5xx | Passthrough error from Slack API |
Missing Scope Errors: If you encounter
missing_scopeMATON_API_KEYecho $MATON_API_KEY
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
slackhttps://gateway.maton.ai/slack/api/chat.postMessagehttps://gateway.maton.ai/api/chat.postMessageNo automatic installation available. Please visit the source repository for installation instructions.
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