- name
- mailchimp
- description
- |
- compatibility
- Requires network access and valid Maton API key
- metadata
- author
- maton
- version
- 1.0
- clawdbot
- emoji
- 🧠
- requires
- env
Mailchimp
Access the Mailchimp Marketing API with managed OAuth authentication. Manage audiences, campaigns, templates, automations, reports, and subscribers for email marketing.
Quick Start
# List all audiences
python <<'EOF'
import urllib.request, os, json
req = urllib.request.Request('https://api.maton.ai/mailchimp/3.0/lists')
req.add_header('Authorization', f'Bearer {os.environ["MATON_API_KEY"]}')
print(json.dumps(json.load(urllib.request.urlopen(req)), indent=2))
EOFBase URL
https://api.maton.ai/mailchimp/{native-api-path}Maton proxies requests to your Mailchimp data center and automatically injects your OAuth token.
Authentication
All requests require the Maton API key in the Authorization header:
Authorization: Bearer $MATON_API_KEYEnvironment Variable: Set your API key as MATON_API_KEY:
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 Mailchimp OAuth connections at https://api.maton.ai.
List Connections
python <<'EOF'
import urllib.request, os, json
req = urllib.request.Request('https://api.maton.ai/connections?app=mailchimp&status=ACTIVE')
req.add_header('Authorization', f'Bearer {os.environ["MATON_API_KEY"]}')
print(json.dumps(json.load(urllib.request.urlopen(req)), indent=2))
EOFCreate Connection
python <<'EOF'
import urllib.request, os, json
data = json.dumps({'app': 'mailchimp'}).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))
EOFGet Connection
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))
EOFResponse:
{
"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": "mailchimp",
"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://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))
EOFSpecifying Connection
If you have multiple Mailchimp connections, specify which one to use with the Maton-Connection header:
python <<'EOF'
import urllib.request, os, json
req = urllib.request.Request('https://api.maton.ai/mailchimp/3.0/lists')
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))
EOFIf you have multiple connections, always include this header to ensure requests go to the intended account.
Security & Permissions
- Access is scoped to audiences, campaigns, templates, automations, reports, and manage subscribers within the connected Mailchimp 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
Lists (Audiences)
Within the Mailchimp app, "audience" is the common term, but the API uses "lists" for endpoints.
Get All Lists
GET /mailchimp/3.0/listsQuery parameters:
count- Number of records to return (default 10, max 1000)offset- Number of records to skip (for pagination)fields- Comma-separated list of fields to includeexclude_fields- Comma-separated list of fields to exclude
Example:
python <<'EOF'
import urllib.request, os, json
req = urllib.request.Request('https://api.maton.ai/mailchimp/3.0/lists?count=10')
req.add_header('Authorization', f'Bearer {os.environ["MATON_API_KEY"]}')
print(json.dumps(json.load(urllib.request.urlopen(req)), indent=2))
EOFResponse:
{
"lists": [
{
"id": "abc123def4",
"name": "Newsletter Subscribers",
"contact": {
"company": "Acme Corp",
"address1": "123 Main St"
},
"stats": {
"member_count": 5000,
"unsubscribe_count": 100,
"open_rate": 0.25
}
}
],
"total_items": 1
}Get a List
GET /mailchimp/3.0/lists/{list_id}Example:
python <<'EOF'
import urllib.request, os, json
req = urllib.request.Request('https://api.maton.ai/mailchimp/3.0/lists/abc123def4')
req.add_header('Authorization', f'Bearer {os.environ["MATON_API_KEY"]}')
print(json.dumps(json.load(urllib.request.urlopen(req)), indent=2))
EOFCreate a List
POST /mailchimp/3.0/lists
Content-Type: application/json
{
"name": "Newsletter",
"contact": {
"company": "Acme Corp",
"address1": "123 Main St",
"city": "New York",
"state": "NY",
"zip": "10001",
"country": "US"
},
"permission_reminder": "You signed up for our newsletter",
"campaign_defaults": {
"from_name": "Acme Corp",
"from_email": "newsletter@acme.com",
"subject": "",
"language": "en"
},
"email_type_option": true
}Update a List
PATCH /mailchimp/3.0/lists/{list_id}Delete a List
DELETE /mailchimp/3.0/lists/{list_id}List Members (Subscribers)
Members are contacts within an audience. The API uses MD5 hash of the lowercase email address as the subscriber identifier.
Get List Members
GET /mailchimp/3.0/lists/{list_id}/membersQuery parameters:
status- Filter by subscription status (subscribed, unsubscribed, cleaned, pending, transactional)count- Number of records to returnoffset- Number of records to skip
Example:
python <<'EOF'
import urllib.request, os, json
req = urllib.request.Request('https://api.maton.ai/mailchimp/3.0/lists/abc123def4/members?status=subscribed&count=50')
req.add_header('Authorization', f'Bearer {os.environ["MATON_API_KEY"]}')
print(json.dumps(json.load(urllib.request.urlopen(req)), indent=2))
EOFResponse:
{
"members": [
{
"id": "f4b7c8d9e0",
"email_address": "john@example.com",
"status": "subscribed",
"merge_fields": {
"FNAME": "John",
"LNAME": "Doe"
},
"tags": [
{"id": 1, "name": "VIP"}
]
}
],
"total_items": 500
}Get a Member
GET /mailchimp/3.0/lists/{list_id}/members/{subscriber_hash}The subscriber_hash is the MD5 hash of the lowercase email address.
Example:
# For email "john@example.com", subscriber_hash = md5("john@example.com")
python <<'EOF'
import urllib.request, os, json
req = urllib.request.Request('https://api.maton.ai/mailchimp/3.0/lists/abc123def4/members/b4c9a0d1e2f3g4h5')
req.add_header('Authorization', f'Bearer {os.environ["MATON_API_KEY"]}')
print(json.dumps(json.load(urllib.request.urlopen(req)), indent=2))
EOFAdd a Member
POST /mailchimp/3.0/lists/{list_id}/members
Content-Type: application/json
{
"email_address": "newuser@example.com",
"status": "subscribed",
"merge_fields": {
"FNAME": "Jane",
"LNAME": "Smith"
},
"tags": ["Newsletter", "Premium"]
}Example:
python <<'EOF'
import urllib.request, os, json
data = json.dumps({'email_address': 'newuser@example.com', 'status': 'subscribed', 'merge_fields': {'FNAME': 'Jane', 'LNAME': 'Smith'}}).encode()
req = urllib.request.Request('https://api.maton.ai/mailchimp/3.0/lists/abc123def4/members', 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))
EOFUpdate a Member
PATCH /mailchimp/3.0/lists/{list_id}/members/{subscriber_hash}Example:
python <<'EOF'
import urllib.request, os, json
data = json.dumps({'merge_fields': {'FNAME': 'Jane', 'LNAME': 'Doe'}}).encode()
req = urllib.request.Request('https://api.maton.ai/mailchimp/3.0/lists/abc123def4/members/b4c9a0d1e2f3g4h5', data=data, method='PATCH')
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))
EOFAdd or Update a Member (Upsert)
PUT /mailchimp/3.0/lists/{list_id}/members/{subscriber_hash}
Content-Type: application/json
{
"email_address": "user@example.com",
"status_if_new": "subscribed",
"merge_fields": {
"FNAME": "Jane",
"LNAME": "Smith"
}
}Creates a new member or updates an existing one based on the email hash. Use status_if_new to set the status when creating a new member.
Delete a Member
Archives a member (can be re-added later):
DELETE /mailchimp/3.0/lists/{list_id}/members/{subscriber_hash}Returns 204 No Content on success.
To permanently delete (GDPR compliant):
POST /mailchimp/3.0/lists/{list_id}/members/{subscriber_hash}/actions/delete-permanentMember Tags
Get Member Tags
GET /mailchimp/3.0/lists/{list_id}/members/{subscriber_hash}/tagsAdd or Remove Tags
POST /mailchimp/3.0/lists/{list_id}/members/{subscriber_hash}/tags
Content-Type: application/json
{
"tags": [
{"name": "VIP", "status": "active"},
{"name": "Old Tag", "status": "inactive"}
]
}Returns 204 No Content on success.
Segments
Get Segments
GET /mailchimp/3.0/lists/{list_id}/segmentsExample:
python <<'EOF'
import urllib.request, os, json
req = urllib.request.Request('https://api.maton.ai/mailchimp/3.0/lists/abc123def4/segments')
req.add_header('Authorization', f'Bearer {os.environ["MATON_API_KEY"]}')
print(json.dumps(json.load(urllib.request.urlopen(req)), indent=2))
EOFCreate a Segment
POST /mailchimp/3.0/lists/{list_id}/segments
Content-Type: application/json
{
"name": "Active Subscribers",
"options": {
"match": "all",
"conditions": [
{
"condition_type": "EmailActivity",
"field": "opened",
"op": "date_within",
"value": "30"
}
]
}
}Update a Segment
PATCH /mailchimp/3.0/lists/{list_id}/segments/{segment_id}Get Segment Members
GET /mailchimp/3.0/lists/{list_id}/segments/{segment_id}/membersDelete a Segment
DELETE /mailchimp/3.0/lists/{list_id}/segments/{segment_id}Returns 204 No Content on success.
Campaigns
Get All Campaigns
GET /mailchimp/3.0/campaignsQuery parameters:
type- Campaign type (regular, plaintext, absplit, rss, variate)status- Campaign status (save, paused, schedule, sending, sent)list_id- Filter by list IDcount- Number of records to returnoffset- Number of records to skip
Example:
python <<'EOF'
import urllib.request, os, json
req = urllib.request.Request('https://api.maton.ai/mailchimp/3.0/campaigns?status=sent&count=20')
req.add_header('Authorization', f'Bearer {os.environ["MATON_API_KEY"]}')
print(json.dumps(json.load(urllib.request.urlopen(req)), indent=2))
EOFResponse:
{
"campaigns": [
{
"id": "campaign123",
"type": "regular",
"status": "sent",
"settings": {
"subject_line": "Monthly Newsletter",
"from_name": "Acme Corp"
},
"send_time": "2025-02-01T10:00:00Z",
"report_summary": {
"opens": 1500,
"clicks": 300,
"open_rate": 0.30,
"click_rate": 0.06
}
}
],
"total_items": 50
}Get a Campaign
GET /mailchimp/3.0/campaigns/{campaign_id}Create a Campaign
POST /mailchimp/3.0/campaigns
Content-Type: application/json
{
"type": "regular",
"recipients": {
"list_id": "abc123def4"
},
"settings": {
"subject_line": "Your Monthly Update",
"from_name": "Acme Corp",
"reply_to": "hello@acme.com"
}
}Example:
python <<'EOF'
import urllib.request, os, json
data = json.dumps({'type': 'regular', 'recipients': {'list_id': 'abc123def4'}, 'settings': {'subject_line': 'February Newsletter', 'from_name': 'Acme Corp', 'reply_to': 'newsletter@acme.com'}}).encode()
req = urllib.request.Request('https://api.maton.ai/mailchimp/3.0/campaigns', 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))
EOFUpdate a Campaign
PATCH /mailchimp/3.0/campaigns/{campaign_id}Delete a Campaign
DELETE /mailchimp/3.0/campaigns/{campaign_id}Returns 204 No Content on success.
Get Campaign Content
GET /mailchimp/3.0/campaigns/{campaign_id}/contentSet Campaign Content
PUT /mailchimp/3.0/campaigns/{campaign_id}/content
Content-Type: application/json
{
"html": "<html><body><h1>Hello!</h1><p>Newsletter content here.</p></body></html>",
"plain_text": "Hello! Newsletter content here."
}Or use a template:
PUT /mailchimp/3.0/campaigns/{campaign_id}/content
Content-Type: application/json
{
"template": {
"id": 12345,
"sections": {
"body": "<p>Custom content for the template section</p>"
}
}
}Get Campaign Send Checklist
Check if a campaign is ready to send:
GET /mailchimp/3.0/campaigns/{campaign_id}/send-checklistSend a Campaign
POST /mailchimp/3.0/campaigns/{campaign_id}/actions/sendSchedule a Campaign
POST /mailchimp/3.0/campaigns/{campaign_id}/actions/schedule
Content-Type: application/json
{
"schedule_time": "2025-03-01T10:00:00+00:00"
}Cancel a Scheduled Campaign
POST /mailchimp/3.0/campaigns/{campaign_id}/actions/cancel-sendTemplates
Get All Templates
GET /mailchimp/3.0/templatesQuery parameters:
type- Template type (user, base, gallery)count- Number of records to returnoffset- Number of records to skip
Example:
python <<'EOF'
import urllib.request, os, json
req = urllib.request.Request('https://api.maton.ai/mailchimp/3.0/templates?type=user')
req.add_header('Authorization', f'Bearer {os.environ["MATON_API_KEY"]}')
print(json.dumps(json.load(urllib.request.urlopen(req)), indent=2))
EOFGet a Template
GET /mailchimp/3.0/templates/{template_id}Get Template Default Content
GET /mailchimp/3.0/templates/{template_id}/default-contentCreate a Template
POST /mailchimp/3.0/templates
Content-Type: application/json
{
"name": "Newsletter Template",
"html": "<html><body mc:edit=\"body\"><h1>Title</h1><p>Content here</p></body></html>"
}Update a Template
PATCH /mailchimp/3.0/templates/{template_id}Delete a Template
DELETE /mailchimp/3.0/templates/{template_id}Returns 204 No Content on success.
Automations
Mailchimp's classic automations let you build email series triggered by dates, activities, or events.
Get All Automations
GET /mailchimp/3.0/automationsExample:
python <<'EOF'
import urllib.request, os, json
req = urllib.request.Request('https://api.maton.ai/mailchimp/3.0/automations')
req.add_header('Authorization', f'Bearer {os.environ["MATON_API_KEY"]}')
print(json.dumps(json.load(urllib.request.urlopen(req)), indent=2))
EOFGet an Automation
GET /mailchimp/3.0/automations/{workflow_id}Start an Automation
POST /mailchimp/3.0/automations/{workflow_id}/actions/start-all-emailsPause an Automation
POST /mailchimp/3.0/automations/{workflow_id}/actions/pause-all-emailsGet Automation Emails
GET /mailchimp/3.0/automations/{workflow_id}/emailsAdd Subscriber to Automation Queue
Manually add a subscriber to an automation workflow:
POST /mailchimp/3.0/automations/{workflow_id}/emails/{workflow_email_id}/queue
Content-Type: application/json
{
"email_address": "subscriber@example.com"
}Reports
Get Campaign Reports
GET /mailchimp/3.0/reportsQuery parameters:
count- Number of records to returnoffset- Number of records to skiptype- Campaign type
Example:
python <<'EOF'
import urllib.request, os, json
req = urllib.request.Request('https://api.maton.ai/mailchimp/3.0/reports?count=20')
req.add_header('Authorization', f'Bearer {os.environ["MATON_API_KEY"]}')
print(json.dumps(json.load(urllib.request.urlopen(req)), indent=2))
EOFResponse:
{
"reports": [
{
"id": "campaign123",
"campaign_title": "Monthly Newsletter",
"emails_sent": 5000,
"opens": {
"opens_total": 1500,
"unique_opens": 1200,
"open_rate": 0.24
},
"clicks": {
"clicks_total": 450,
"unique_clicks": 300,
"click_rate": 0.06
},
"unsubscribed": 10,
"bounce_rate": 0.02
}
]
}Get Campaign Report
GET /mailchimp/3.0/reports/{campaign_id}Get Campaign Open Details
GET /mailchimp/3.0/reports/{campaign_id}/open-detailsGet Campaign Click Details
GET /mailchimp/3.0/reports/{campaign_id}/click-detailsGet List Activity
GET /mailchimp/3.0/lists/{list_id}/activityReturns recent daily aggregated activity stats (unsubscribes, signups, opens, clicks) for up to 180 days.
Batch Operations
Process multiple operations in a single call.
Create Batch Operation
POST /mailchimp/3.0/batches
Content-Type: application/json
{
"operations": [
{
"method": "POST",
"path": "/lists/abc123def4/members",
"body": "{\"email_address\":\"user1@example.com\",\"status\":\"subscribed\"}"
},
{
"method": "POST",
"path": "/lists/abc123def4/members",
"body": "{\"email_address\":\"user2@example.com\",\"status\":\"subscribed\"}"
}
]
}Get Batch Status
GET /mailchimp/3.0/batches/{batch_id}List All Batches
GET /mailchimp/3.0/batchesDelete a Batch
DELETE /mailchimp/3.0/batches/{batch_id}Returns 204 No Content on success.
Pagination
Mailchimp uses offset-based pagination:
python <<'EOF'
import urllib.request, os, json
req = urllib.request.Request('https://api.maton.ai/mailchimp/3.0/lists?count=50&offset=100')
req.add_header('Authorization', f'Bearer {os.environ["MATON_API_KEY"]}')
print(json.dumps(json.load(urllib.request.urlopen(req)), indent=2))
EOFResponse includes total_items for calculating total pages:
{
"lists": [...],
"total_items": 250
}Code Examples
JavaScript
const response = await fetch(
'https://api.maton.ai/mailchimp/3.0/lists',
{
headers: {
'Authorization': `Bearer ${process.env.MATON_API_KEY}`
}
}
);
const data = await response.json();Python
import os
import requests
import hashlib
# Get lists
response = requests.get(
'https://api.maton.ai/mailchimp/3.0/lists',
headers={'Authorization': f'Bearer {os.environ["MATON_API_KEY"]}'}
)
data = response.json()
# Add a subscriber
list_id = 'abc123def4'
email = 'newuser@example.com'
response = requests.post(
f'https://api.maton.ai/mailchimp/3.0/lists/{list_id}/members',
headers={
'Authorization': f'Bearer {os.environ["MATON_API_KEY"]}',
'Content-Type': 'application/json'
},
json={
'email_address': email,
'status': 'subscribed'
}
)
# Get subscriber hash for updates
subscriber_hash = hashlib.md5(email.lower().encode()).hexdigest()Notes
- List IDs are 10-character alphanumeric strings
- Subscriber hashes are MD5 hashes of lowercase email addresses
- Timestamps are in ISO 8601 format
- The API has a 120-second timeout on calls
- Maximum 1000 records per request for list endpoints
- "Audience" and "list" are used interchangeably (app vs API terminology)
- "Contact" and "member" are used interchangeably (app vs API terminology)
- IMPORTANT: When using curl commands, use
curl -gwhen URLs contain brackets (fields[],sort[],records[]) to disable glob parsing - IMPORTANT: When piping curl output to
jqor other commands, environment variables like$MATON_API_KEYmay not expand correctly in some shell environments. You may get "Invalid API key" errors when piping.
Response Codes
| Status | Meaning |
|---|---|
| 200 | Success with response body |
| 204 | Success with no content (DELETE, some POST operations) |
| 400 | Bad request or missing Mailchimp connection |
| 401 | Invalid or missing Maton API key |
| 403 | Forbidden - insufficient permissions |
| 404 | Resource not found |
| 405 | Method not allowed |
| 429 | Rate limited |
| 4xx/5xx | Passthrough error from Mailchimp API |
Mailchimp error responses include detailed information:
{
"type": "https://mailchimp.com/developer/marketing/docs/errors/",
"title": "Invalid Resource",
"status": 400,
"detail": "The resource submitted could not be validated.",
"instance": "abc123-def456",
"errors": [
{
"field": "email_address",
"message": "This value should be a valid email."
}
]
}Troubleshooting: API Key Issues
- Check that the
MATON_API_KEYenvironment 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://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))
EOFTroubleshooting: Invalid App Name
- Ensure your URL path starts with
mailchimp. For example:
- Correct:
https://api.maton.ai/mailchimp/3.0/lists - Incorrect:
https://api.maton.ai/3.0/lists