Instantly.ai
Cold email platform with unlimited sending accounts and AI-powered sequence optimization.
Key strengths
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Recent changes
- Starting price: $37/mo → $47/mo
- Models updated: OpenAI, Anthropic, and others
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Developer & Integration Documentation
Instantly provides a public API that allows developers to build on top of its core platform features. Integration points include:
API & Automation:
- REST API available for managing campaigns, leads, and mailboxes programmatically
- Enables custom workflow automation, internal dashboards, and CRM sync pipelines
AI Model Integrations:
- Natively integrates with OpenAI (ChatGPT) and Anthropic (Claude) for AI-driven personalization, reply generation, and sales agent behavior
- Model provider ecosystem includes OpenAI, Anthropic, and others
Supported Integrations:
| Integration | Type |
|---|---|
| ChatGPT / OpenAI | AI model (personalization, replies) |
| Claude / Anthropic | AI model (personalization, replies) |
| CRM (export) | Data export to downstream CRM systems |
| Outreach providers | Campaign and sequence connectivity |
Authentication & Access:
- API access is included as part of the paid plan tiers; refer to Instantly's official API documentation for endpoint references and authentication details.
Pricing context for builders: Plans start at $47/mo (Growth). Higher-tier plans (up to $555/mo for Agency) unlock greater sending limits and multi-mailbox management relevant for multi-tenant integrations.
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