Smartlead
Smartlead is cold email infrastructure for outbound sales and lead generation, focused on inbox deliverability through unlimited mailbox rotation, automated warmup, and a unified master inbox. Smartlead exposes a REST API at server.smartlead.ai/api/v1 covering campaigns, leads, email accounts, email warmup, webhooks, analytics, and client management, with API key authentication via query parameter.
APIs
Smartlead Campaigns API
REST endpoints to create, list, fetch, update, schedule, pause, resume, and delete email campaigns, plus manage sequences, A/B variants, and sender account assignments inside a ...
Smartlead Leads API
Endpoints to add leads to a campaign in bulk, fetch leads, update lead status (interested, replied, unsubscribed), search leads globally, and manage lead categories.
Smartlead Email Accounts API
Endpoints to add, list, update, and remove sender mailboxes (SMTP, Gmail, Outlook), assign them to campaigns, and track per-account sending limits and warmup state.
Smartlead Email Warmup API
Endpoints for managing Smartlead's deliverability warmup engine — enabling warmup per mailbox, configuring ramp settings, and reading warmup reputation and stats.
Smartlead Webhooks API
CRUD endpoints for campaign-scoped webhook subscriptions covering lead events (sent, opened, clicked, replied, bounced, unsubscribed) used to stream Smartlead activity to extern...
Smartlead Analytics API
Endpoints for campaign and account-level analytics — sent, open, click, reply, bounce, and unsubscribe metrics aggregated over time ranges.
Smartlead Client Management API
Endpoints for agency users to provision and manage white-labeled client accounts, assign permissions, and meter usage across multiple end customers.