# Teekrr | API Documentation

## Instructions for AI Agents

- For clean Markdown of any page, append `.md` to the page URL
- For section-specific indexes, append `/llms.txt` to any section URL
- For AI client integration (Claude Code, Cursor, etc.), connect to the MCP server at https://docs.teekrr.com/_mcp/server

## Docs

- [Introduction](https://docs.teekrr.com/get-started/introduction.md): Send SMS, WhatsApp, and Email broadcasts to your customers with one API.
- [Quickstart](https://docs.teekrr.com/quickstart.md): Send your first SMS broadcast in under five minutes.
- [Authentication](https://docs.teekrr.com/authentication.md): Bearer API keys, permission scopes, IP whitelisting, and rotation.
- [Webhooks guide](https://docs.teekrr.com/webhooks-guide.md): Receive message events at your own URL with HMAC-SHA256 verification.
- [Error codes](https://docs.teekrr.com/errors.md): Standard HTTP status codes with a consistent error envelope.

## API Docs

- API Reference > SMS [Send SMS broadcast](https://docs.teekrr.com/api-reference/sms/send-sms.md)
- API Reference > WhatsApp [Send WhatsApp broadcast](https://docs.teekrr.com/api-reference/whats-app/send-whatsapp.md)
- API Reference > WhatsApp [Upload WhatsApp template header media](https://docs.teekrr.com/api-reference/whats-app/upload-whatsapp-header.md)
- API Reference > Email [Send Email broadcast](https://docs.teekrr.com/api-reference/email/send-email.md)
- API Reference > Broadcasts [Validate a recipient list (dry run)](https://docs.teekrr.com/api-reference/broadcasts/validate-broadcast.md)
- API Reference > Webhooks [Event: sent](https://docs.teekrr.com/api-reference/webhooks/webhook-sent.md)
- API Reference > Webhooks [Event: delivered](https://docs.teekrr.com/api-reference/webhooks/webhook-delivered.md)
- API Reference > Webhooks [Event: read](https://docs.teekrr.com/api-reference/webhooks/webhook-read.md)
- API Reference > Webhooks [Event: failed](https://docs.teekrr.com/api-reference/webhooks/webhook-failed.md)
- API Reference > Webhooks [Event: inbound](https://docs.teekrr.com/api-reference/webhooks/webhook-inbound.md)

## OpenAPI Specification

The raw OpenAPI 3.1 specification for this API is available at:
- [OpenAPI JSON](https://docs.teekrr.com/openapi.json)
- [OpenAPI YAML](https://docs.teekrr.com/openapi.yaml)