Campaign Monitor

Get full client details including API key and billing (GET /clients/{clientid}.json).

Delete a client (DELETE /clients/{clientid}.json).

Get all subscriber lists for the client (GET /clients/{clientid}/lists.json).

Get the lists a given email is subscribed to, within a client (GET /clients/{clientid}/listsforemail.json?email={email}).

Get all segments across the client's lists (GET /clients/{clientid}/segments.json).

Get the client's paginated suppression list (GET /clients/{clientid}/suppressionlist.json).

Add email addresses to the client's suppression list (POST /clients/{clientid}/suppress.json).

Remove an email from the suppression list (PUT /clients/{clientid}/unsuppress.json?email={email}).

List the client's templates (GET /clients/{clientid}/templates.json).

Update client name, country, timezone (PUT /clients/{clientid}/setbasics.json).

Configure pay-as-you-go billing for the client (PUT /clients/{clientid}/setpaygbilling.json).

Configure a monthly billing plan for the client (PUT /clients/{clientid}/setmonthlybilling.json).

Transfer credits to or from the client (POST /clients/{clientid}/credits.json).

List active/invited people for the client (GET /clients/{clientid}/people.json).

Get a single person's details for the client (GET /clients/{clientid}/people.json?email={email}).

Add a new person to the client (POST /clients/{clientid}/people.json).

Update a person's details/permissions for the client (PUT /clients/{clientid}/people.json?email={email}).

Set a person to deleted, revoking their client access (DELETE /clients/{clientid}/people.json?email={email}).

Get the client's primary-contact email (GET /clients/{clientid}/primarycontact.json).

Set a person as the client primary contact (PUT /clients/{clientid}/primarycontact.json?email={email}).

Get campaign tags with occurrence counts for the client (GET /clients/{clientid}/tags.json).

Get sent campaigns for the client, paginated and filterable (GET /clients/{clientid}/campaigns.json).

Get currently scheduled campaigns for the client (GET /clients/{clientid}/scheduled.json).

Get draft campaigns for the client (GET /clients/{clientid}/drafts.json).

Get sending domains and their authentication status for the client (GET /clients/{clientid}/sendingdomains.json).

Add a sending domain (DKIM config) to the client (POST /clients/{clientid}/sendingdomains.json).

Remove a sending domain from the client (DELETE /clients/{clientid}/sendingdomains.json?domain={domain}).

Copy a verified sending domain to another client (POST /clients/{clientid}/sendingdomains/copy.json).

Verify a sending domain's DNS records for the client (PUT /clients/{clientid}/sendingdomains/authenticate.json).

Get all journeys (automations) for a client (GET /clients/{clientid}/journeys.json).

Create a new subscriber list for the client (POST /lists/{clientid}.json). Returns the new ListID as a bare string.

Get a list's configuration/settings (GET /lists/{listid}.json).

Update a list's name, type, opt-in/unsubscribe settings (PUT /lists/{listid}.json).

Delete a list (DELETE /lists/{listid}.json).

Get summary statistics for a list (GET /lists/{listid}/stats.json).

Get all custom fields for the list (GET /lists/{listid}/customfields.json).

Create a custom field for the list (POST /lists/{listid}/customfields.json).

Update a custom field's name/visibility (PUT /lists/{listid}/customfields/{customfieldkey}.json).

Update options for a multi-valued custom field (PUT /lists/{listid}/customfields/{customfieldkey}/options.json).

Delete a custom field (DELETE /lists/{listid}/customfields/{customfieldkey}.json).

Get all segments created for this list (GET /lists/{listid}/segments.json).

Get active subscribers for the list, paginated (GET /lists/{listid}/active.json).

Get subscribers awaiting opt-in confirmation, paginated (GET /lists/{listid}/unconfirmed.json).

Get unsubscribed subscribers, paginated (GET /lists/{listid}/unsubscribed.json).

Get bounced subscribers, paginated (GET /lists/{listid}/bounced.json).

Get deleted subscribers, paginated (GET /lists/{listid}/deleted.json).

Get all webhooks created for this list (GET /lists/{listid}/webhooks.json).

Create a webhook on this list for Subscribe/Update/Deactivate events (POST /lists/{listid}/webhooks.json). Returns the new WebhookID as a bare string.

Send a test payload to the webhook URL (GET /lists/{listid}/webhooks/{webhookid}/test.json). A 2xx response is required before the webhook can be activated.

Activate a webhook (PUT /lists/{listid}/webhooks/{webhookid}/activate.json).

Deactivate a webhook (PUT /lists/{listid}/webhooks/{webhookid}/deactivate.json). Campaign Monitor also auto-deactivates webhooks on repeated delivery failure — see campaign-monitor-03.

Delete a webhook (DELETE /lists/{listid}/webhooks/{webhookid}.json).

Create a draft campaign with HTML content and recipient lists (POST /campaigns/{clientid}.json). Returns the new CampaignID as a bare string.

Create a draft campaign from a template (POST /campaigns/{clientid}/fromtemplate.json). Returns the new CampaignID as a bare string.

Send a draft campaign now or at a scheduled time (POST /campaigns/{campaignid}/send.json).

Send a preview of a draft campaign to specified addresses (POST /campaigns/{campaignid}/sendpreview.json).

Cancel a scheduled campaign, returning it to draft (POST /campaigns/{campaignid}/unschedule.json).

Delete a campaign (DELETE /campaigns/{campaignid}.json).

Get a campaign's performance summary (GET /campaigns/{campaignid}/summary.json).

Get the email clients used to open the campaign (GET /campaigns/{campaignid}/emailclientusage.json).

Get subscribers who opened the campaign, with timestamps and geo (GET /campaigns/{campaignid}/opens.json).

Get link clicks for the campaign, with URLs, IP, and geo (GET /campaigns/{campaignid}/clicks.json).

Get bounce events for the campaign, with type and reason (GET /campaigns/{campaignid}/bounces.json).

Get unsubscribe events for the campaign, with timestamps and IP (GET /campaigns/{campaignid}/unsubscribes.json).

Get spam complaints for the campaign, with dates and list ids (GET /campaigns/{campaignid}/spam.json).

Get the campaign's paginated recipient list (GET /campaigns/{campaignid}/recipients.json).

Get the lists/segments a campaign was sent to (GET /campaigns/{campaignid}/listsandsegments.json).

List smart transactional emails by status (GET /transactional/smartEmail.json). JSON-only, rate-limited.

Get smart email details (GET /transactional/smartEmail/{smartEmailID}.json). JSON-only, rate-limited.

Send a smart email with template variables and recipients (POST /transactional/smartEmail/{smartEmailID}/send.json). JSON-only, rate-limited.

Send a classic transactional email with full content specified at request time (POST /transactional/classicEmail/send.json). JSON-only, rate-limited.

List classic email groups (GET /transactional/classicEmail/groups.json). JSON-only, rate-limited.

Get delivery/engagement metrics by group or smart email (GET /transactional/statistics.json). JSON-only, rate-limited.

Get sent transactional message history, filterable and paginated (GET /transactional/messages.json). JSON-only, rate-limited.

Get a message's status, content, and analytics (GET /transactional/messages/{messageID}.json). JSON-only, rate-limited.

Resend a previously sent transactional message (POST /transactional/messages/{messageID}/resend.json). JSON-only, rate-limited.

Get a journey summary with per-email statistics (GET /journeys/{journeyid}.json).

Get subscribers who received a journey email (GET /journeys/email/{emailId}/recipients.json).

Get journey email opens with geo and timing (GET /journeys/email/{emailId}/opens.json).

Get journey email clicks with URLs and location (GET /journeys/email/{emailId}/clicks.json).

Get journey email bounces with type and reason (GET /journeys/email/{emailId}/bounces.json).

Get journey email unsubscribes with IP and timestamp (GET /journeys/email/{emailId}/unsubscribes.json).

Copy a journey to another client/list (POST /journeys/{journeyid}/copy.json).

Create a segment for a list (POST /segments/{listid}.json).

Get segment details including rules and subscriber count (GET /segments/{segmentid}.json).

Update a segment's name (optionally replacing its rules) (PUT /segments/{segmentid}.json).

Add a rulegroup to a segment (POST /segments/{segmentid}/rules.json).

Clear all rules/rulegroups from a segment (DELETE /segments/{segmentid}/rules.json).

Get active subscribers matching the segment, paginated (GET /segments/{segmentid}/active.json).

Delete a segment (DELETE /segments/{segmentid}.json).

Add a single subscriber to a list (POST /subscribers/{listid}.json). Returns the EmailAddress string.

Update an existing subscriber (PUT /subscribers/{listid}.json?email={email}).

Import up to 1000 subscribers in a batch (POST /subscribers/{listid}/import.json).

Get a subscriber's current details (GET /subscribers/{listid}.json?email={email}).

Get a subscriber's campaign activity history (GET /subscribers/{listid}/history.json?email={email}).

Set a subscriber to unsubscribed (POST /subscribers/{listid}/unsubscribe.json).

Set a subscriber to deleted (DELETE /subscribers/{listid}.json?email={email}). Used as the cleanup for the add_subscriber write test.

List all (active or invited) administrators (GET /admins.json).

Get a single administrator's details (GET /admins.json?email={email}).

Add a new administrator to the account (POST /admins.json).

Update an administrator's email/name (PUT /admins.json?email={email}).

Remove administrator access (DELETE /admins.json?email={email}).

Create a template from a name and HTML/zip URLs (POST /templates/{clientid}.json). Returns the new TemplateID as a bare string.

Get template details including preview/screenshot URLs (GET /templates/{templateid}.json).

Update a template's name/file URLs (PUT /templates/{templateid}.json).

Delete a template (DELETE /templates/{templateid}.json).

Copy a 'My templates' template to a client (POST /templates/{templateid}/copy.json). Returns the new TemplateID as a bare string.

List all clients in the account (GET /clients.json).

Create a new client (POST /clients.json). Returns the new ClientID as a bare string.

Get the account primary-contact email (GET /primarycontact.json).

Set an administrator as the account primary contact (PUT /primarycontact.json?email={email}).

Get account credits and billing information (GET /billingdetails.json).

List valid country names accepted as input (GET /countries.json).

Trigger a Subscriber Activity journey with custom event data (POST /events/publish/{clientId}).

Initiate a single-sign-on login session for a member (PUT /externalsession.json).

Get the current date/time in the account's timezone. Safe, no side effects, requires only valid credentials — connectivity/identity check.

List valid timezone names accepted as input (GET /timezones.json).