Documentation
sendbunny is a self-hosted email platform that runs in your own AWS account: campaigns, audience management, and a REST transactional email API. These docs cover the API. Your install's endpoint and API keys live in your dashboard under API Keys.
Quickstart: send your first email
Send a transactional email through your self-hosted SendBunny install in four steps: verify a domain, create an API key, copy your endpoint URL, POST JSON.
Transactional email API
Complete reference for SendBunny's transactional send endpoint: authentication, every request field, template sends, all error responses, and rate behavior.
Email templates and merge variables
How SendBunny templates work: merge-tag syntax with fallbacks, required-variable enforcement, aliases, and sending templates through the transactional API.
For AI agents
Machine-readable resources, kept in lockstep with the pages above:
- openapi.json — OpenAPI 3.1 contract for the transactional API — request schema, every error, auth.
- llms.txt — Site map for AI agents: what sendbunny is, key facts, and every page worth reading.
- llms-full.txt — llms.txt plus the complete docs content inline — integrate from a single fetch.
Don't have sendbunny yet? It installs into your AWS account with one pre-filled CloudFormation template in about ten minutes — one-time purchase, no monthly fees. How deployment works · Pricing