# SendyKit

## Docs

- [Authentication](https://docs.sendykit.dev/api-reference/authentication.md): How SendyKit API authentication works
- [Errors](https://docs.sendykit.dev/api-reference/errors.md): SendyKit API error format and common error codes
- [API Introduction](https://docs.sendykit.dev/api-reference/introduction.md): SendyKit REST API v2 — 125 endpoints for complete email marketing automation
- [Pagination](https://docs.sendykit.dev/api-reference/pagination.md): How SendyKit paginates list-style API responses
- [Rate Limiting](https://docs.sendykit.dev/api-reference/rate-limiting.md): How SendyKit communicates API rate limits
- [Agent Payments](https://docs.sendykit.dev/billing/agent-payments.md): How premium agent actions are paid for in SendyKit
- [Billing Overview](https://docs.sendykit.dev/billing/overview.md): How SendyKit billing works across self-hosted, SaaS, and premium agent actions
- [Plans](https://docs.sendykit.dev/billing/plans.md): How SendyKit plans are split across self-hosted, SaaS, and premium actions
- [Agent Integration](https://docs.sendykit.dev/cli/agent-usage.md): How AI agents use SendyKit CLI for autonomous email marketing
- [CLI Installation](https://docs.sendykit.dev/cli/installation.md): Install and use the SendyKit CLI for health, doctor, brands, billing, and licensing operations
- [The Exoskeleton Model](https://docs.sendykit.dev/concepts/exoskeleton.md): How SendyKit wraps around Sendy without modifying it
- [Configuration](https://docs.sendykit.dev/configuration.md): Core SendyKit environment and runtime setup
- [AI Authoring](https://docs.sendykit.dev/features/ai-authoring.md): Configure SendyKit AI features for subject lines, email generation, rewrites, and campaign insight workflows
- [SMTP Overlay](https://docs.sendykit.dev/features/smtp-overlay.md): Use SendyKit’s outbound transport layer to operate beyond Sendy’s SES-only default
- [SendyKit Documentation](https://docs.sendykit.dev/index.md): Agent-first, human-friendly email ops. SendyKit wraps around Sendy without modifying core, giving humans and agents a modern API, CLI, analytics, AI, health diagnostics, and managed email operations.
- [Installation](https://docs.sendykit.dev/installation.md): Install SendyKit alongside your existing Sendy deployment
- [Quickstart](https://docs.sendykit.dev/quickstart.md): Get SendyKit running in under 5 minutes
- [Readiness Doctor](https://docs.sendykit.dev/readiness/doctor.md): Use SendyKit readiness to choose the right path before you buy or install
- [Self-Hosted Editions](https://docs.sendykit.dev/self-hosted/editions.md): Choose the right SendyKit self-hosted edition and upgrade lane
- [Licensing](https://docs.sendykit.dev/self-hosted/licensing.md): How SendyKit self-hosted licensing works
- [SMTP Pool](https://docs.sendykit.dev/self-hosted/smtp-pool.md): How SendyKit managed SMTP overflow works for self-hosted operators

## OpenAPI Specs

- [openapi](https://docs.sendykit.dev/api-reference/openapi.json)

## Optional

- [Pricing](https://sendykit.dev/pricing)