Instantly
Instantly is a cold email outbound platform that combines mailbox sending infrastructure, email warmup, a B2B lead database, deliverability tools, and a unified inbox for replies. The Instantly v2 REST API at api.instantly.ai/api/v2 covers campaigns, leads, accounts, email verification, inbox placement tests, webhooks, analytics, API keys, and workspaces, with Bearer token authentication and scoped API keys.
APIs
Instantly Campaigns API
REST endpoints to create, list, fetch, update, launch, pause, and schedule cold email campaigns, plus manage sequences, A/B variants, and sender mailbox assignments.
Instantly Leads API
Endpoints to create, list, fetch, update, and delete leads, manage lead lists, move leads between campaigns, and update lead interest status.
Instantly Accounts API
Endpoints to add, list, update, and remove sender email accounts (SMTP, Gmail, Microsoft), configure per-account sending limits, and toggle warmup state.
Instantly Email Verification API
Single and bulk email address verification endpoints that check syntax, MX records, deliverability, and risk scoring before sending.
Instantly Inbox Placement Test API
Endpoints to run and read inbox placement tests across major mailbox providers, used to measure deliverability and quantify spam-folder risk before launching campaigns.
Instantly Webhooks API
CRUD endpoints for webhook subscriptions on campaign, lead, and account events (sent, opened, replied, bounced, unsubscribed) for streaming activity to external systems.
Instantly Analytics API
Campaign and account-level analytics — sent, open, click, reply, bounce, unsubscribe, and interested-lead counts aggregated over time ranges.
Instantly API Keys API
Endpoints to create, list, scope, and revoke API keys — the v2 API uses scoped Bearer tokens that can be restricted to specific resource permissions.
Instantly Workspaces API
Endpoints for managing workspaces — the multi-tenant boundary used by agencies and large teams to isolate campaigns, accounts, and billing.
Collections
Instantly.ai API v2
OPENGraphQL
Instantly GraphQL Schema
This conceptual GraphQL schema models the Instantly cold email outreach and sales acceleration platform. Instantly provides mailbox sending infrastructure, email warmup, a B2B l...
GRAPHQL