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Full detail: Where this data comes from
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.json: https://raw.githubusercontent.com/api-evangelist/instantly-ai/refs/heads/main/apis.yml
- Cold Email
- Outbound
- Sales
- Deliverability
- Lead Database
- Email Verification
- Webhooks
- Created: 2026-05-23
- Modified: 2026-05-23
REST endpoints to create, list, fetch, update, launch, pause, and schedule cold email campaigns, plus manage sequences, A/B variants, and sender mailbox assignments.
- Human URL: https://developer.instantly.ai/api-reference/groups/campaign
- Base URL:
https://api.instantly.ai/api/v2/campaigns
- Campaigns
- Sequences
- Documentation
- OpenAPI — OpenAPI Specification
- Postman Collection — Postman Collection 2.1
- Open Collection — Open Collection 1.0
Endpoints to create, list, fetch, update, and delete leads, manage lead lists, move leads between campaigns, and update lead interest status.
- Human URL: https://developer.instantly.ai/api-reference/groups/lead
- Base URL:
https://api.instantly.ai/api/v2/leads
- Leads
- Contacts
- Lists
- Documentation
- OpenAPI — OpenAPI Specification
- Postman Collection — Postman Collection 2.1
- Open Collection — Open Collection 1.0
Endpoints to add, list, update, and remove sender email accounts (SMTP, Gmail, Microsoft), configure per-account sending limits, and toggle warmup state.
- Human URL: https://developer.instantly.ai/api-reference/groups/account
- Base URL:
https://api.instantly.ai/api/v2/accounts
- Email Accounts
- Mailboxes
- Warmup
- Documentation
- OpenAPI — OpenAPI Specification
- Postman Collection — Postman Collection 2.1
- Open Collection — Open Collection 1.0
Single and bulk email address verification endpoints that check syntax, MX records, deliverability, and risk scoring before sending.
- Human URL: https://developer.instantly.ai/api-reference/groups/email-verification
- Base URL:
https://api.instantly.ai/api/v2/email-verification
- Verification
- Deliverability
- Documentation
- OpenAPI — OpenAPI Specification
- Postman Collection — Postman Collection 2.1
- Open Collection — Open Collection 1.0
Endpoints to run and read inbox placement tests across major mailbox providers, used to measure deliverability and quantify spam-folder risk before launching campaigns.
- Human URL: https://developer.instantly.ai/api-reference/groups/inbox-placement-test
- Base URL:
https://api.instantly.ai/api/v2/inbox-placement-tests
- Inbox Placement
- Deliverability
- Testing
- Documentation
- OpenAPI — OpenAPI Specification
- Postman Collection — Postman Collection 2.1
- Open Collection — Open Collection 1.0
CRUD endpoints for webhook subscriptions on campaign, lead, and account events (sent, opened, replied, bounced, unsubscribed) for streaming activity to external systems.
- Human URL: https://developer.instantly.ai/api-reference/groups/webhook
- Base URL:
https://api.instantly.ai/api/v2/webhooks
- Webhooks
- Events
- Subscriptions
- Documentation
- OpenAPI — OpenAPI Specification
- Postman Collection — Postman Collection 2.1
- Open Collection — Open Collection 1.0
Campaign and account-level analytics — sent, open, click, reply, bounce, unsubscribe, and interested-lead counts aggregated over time ranges.
- Human URL: https://developer.instantly.ai/api-reference/groups/analytics
- Base URL:
https://api.instantly.ai/api/v2
- Analytics
- Reporting
- Metrics
- Documentation
- OpenAPI — OpenAPI Specification
- Postman Collection — Postman Collection 2.1
- Open Collection — Open Collection 1.0
Endpoints to create, list, scope, and revoke API keys — the v2 API uses scoped Bearer tokens that can be restricted to specific resource permissions.
- Human URL: https://developer.instantly.ai/api-reference/groups/api-key
- Base URL:
https://api.instantly.ai/api/v2/api-keys
- API Keys
- Auth
- Scopes
- Documentation
- OpenAPI — OpenAPI Specification
- Postman Collection — Postman Collection 2.1
- Open Collection — Open Collection 1.0
Endpoints for managing workspaces — the multi-tenant boundary used by agencies and large teams to isolate campaigns, accounts, and billing.
- Human URL: https://developer.instantly.ai/api-reference/groups/workspace
- Base URL:
https://api.instantly.ai/api/v2/workspaces
- Workspaces
- Multi-Tenant
- Agency
- Documentation
- OpenAPI — OpenAPI Specification
- Postman Collection — Postman Collection 2.1
- Open Collection — Open Collection 1.0
- Website
- App
- Documentation
- API Reference
- Getting Started
- Authentication
- OpenAPI — OpenAPI Specification
- Pricing
- Blog
- Help
- Sign Up
- Sign In
- Privacy Policy
- Terms of Service
- YouTube
- L L Ms Txt
FN: Kin Lane Email: kin@apievangelist.com