The whole API, endpoint by endpoint

Transactional sending, with batching, scheduling, and idempotency.

• POST/v1/sendSend an email
• POST/v1/send/batchSend a batch

Product event ingestion (public key) and the event log.

• POST/v1/eventsTrack an event
• GET/v1/eventsList events
• GET/v1/events/namesList distinct event names
• GET/v1/events/statsPer-name event counts
• GET/v1/events/{name}/usageUsage detail for one event name
• DELETE/v1/events/{name}Delete all events with this name

The contact graph: CRUD, timeline, bulk operations, CSV import/export.

• GET/v1/contactsList contacts
• POST/v1/contactsCreate or update a contact
• GET/v1/contacts/exportExport contacts as CSV
• POST/v1/contacts/importImport contacts from CSV
• GET/v1/contacts/import/{id}Import job progress
• POST/v1/contacts/bulkBulk subscribe / unsubscribe / delete / suppress
• GET/v1/contacts/fieldsDiscover custom contact fields
• GET/v1/contacts/fields/{field}/valuesDistinct values for one custom field
• GET/v1/contacts/fields/{field}/usageHow many contacts have this field set
• DELETE/v1/contacts/fields/{field}Remove a custom field from every contact
• GET/v1/contacts/{id}Get a contact
• DELETE/v1/contacts/{id}Delete a contact
• GET/v1/contacts/{id}/timelineContact activity timeline

The send log — every message across all sources.

• GET/v1/emailsList sent emails
• DELETE/v1/emails/{id}Cancel a scheduled message
• GET/v1/emails/{id}Get an email

Reusable content with versioning, rollback, and test sends.

• GET/v1/templatesList templates
• POST/v1/templatesCreate a template
• GET/v1/templates/{id}Get a template
• PATCH/v1/templates/{id}Update a template
• DELETE/v1/templates/{id}Delete a template
• GET/v1/templates/{id}/versionsList template versions
• POST/v1/templates/{id}/duplicateDuplicate a template
• POST/v1/templates/{id}/rollbackRoll back to a version
• POST/v1/templates/{id}/test-sendTest-send a template

Sending domains, DNS records, and verification.

• GET/v1/domainsList domains
• POST/v1/domainsAdd a domain
• GET/v1/domains/{id}Get a domain
• DELETE/v1/domains/{id}Remove a domain
• POST/v1/domains/{id}/verifyCheck DNS and verify

Dynamic (condition-driven) and static audiences.

• GET/v1/segmentsList segments
• POST/v1/segmentsCreate a segment
• POST/v1/segments/previewPreview conditions
• GET/v1/segments/{id}Get a segment
• PATCH/v1/segments/{id}Update a segment
• DELETE/v1/segments/{id}Delete a segment
• POST/v1/segments/{id}/refreshRecompute membership
• GET/v1/segments/{id}/membersList members
• POST/v1/segments/{id}/membersAdd members (static segments)
• DELETE/v1/segments/{id}/members/{contactId}Remove a member (static segments)

One-off broadcasts with scheduling, A/B subjects, and engagement stats.

• GET/v1/campaignsList campaigns
• POST/v1/campaignsCreate a campaign
• POST/v1/campaigns/audience-countCount an audience before creating a campaign
• GET/v1/campaigns/{id}Get a campaign
• PATCH/v1/campaigns/{id}Update a campaign
• DELETE/v1/campaigns/{id}Delete a campaign
• POST/v1/campaigns/{id}/sendSend or schedule
• POST/v1/campaigns/{id}/cancelCancel a campaign
• GET/v1/campaigns/{id}/recipientsList recipients
• GET/v1/campaigns/{id}/linksPer-link click counts
• POST/v1/campaigns/{id}/duplicateDuplicate a campaign
• POST/v1/campaigns/{id}/resend-non-openersRe-send to non-openers
• POST/v1/campaigns/{id}/test-sendTest-send a campaign

Event-triggered automation graphs and their executions.

• GET/v1/workflowsList workflows
• POST/v1/workflowsCreate a workflow
• GET/v1/workflows/{id}Get a workflow
• PATCH/v1/workflows/{id}Update a workflow
• DELETE/v1/workflows/{id}Delete a workflow
• POST/v1/workflows/{id}/duplicateDuplicate a workflow
• POST/v1/workflows/{id}/enrollEnroll a contact
• GET/v1/workflows/{id}/executionsList executions
• POST/v1/workflows/{id}/executions/cancel-allCancel every in-flight execution
• POST/v1/workflows/{id}/executions/{executionId}/cancelCancel one execution
• GET/v1/workflows/executions/{executionId}Get an execution

Signed event deliveries to your endpoints, with retries and replay.

• GET/v1/webhooksList endpoints
• POST/v1/webhooksCreate an endpoint
• PATCH/v1/webhooks/{id}Update an endpoint
• DELETE/v1/webhooks/{id}Delete an endpoint
• GET/v1/webhooks/{id}/deliveriesDelivery log
• POST/v1/webhooks/deliveries/{id}/replayReplay a delivery

The do-not-send list: bounces, complaints, unsubscribes, and manual blocks.

• GET/v1/suppressionsList suppressions
• POST/v1/suppressionsSuppress an address
• GET/v1/suppressions/checkCheck an address
• GET/v1/suppressions/{id}Look up one address or suppression
• DELETE/v1/suppressions/{id}Remove a suppression

Engagement aggregates: the project rollup and the per-workflow funnel.

• GET/v1/statsProject engagement rollup
• GET/v1/workflows/{id}/statsWorkflow funnel

Email address validation.

• POST/v1/verifyValidate an email address

Usage, monthly caps, reputation, and invoices.

• GET/v1/billingUsage, limits, and plan
• PATCH/v1/billingSet or clear the overall and/or per-category monthly caps

Inbound mail ingestion (used by the SMTP relay).

• POST/v1/inboundIngest an inbound email
• GET/v1/inboundList received mail

API metadata.

• GET/v1/openapi.jsonThis document
• GET/v1/docsRendered API reference