# Flowstates Developer Docs

> Flowstates provides API-key authenticated endpoints for branded short links and OTP generation/validation as part of its managed messaging operations platform.

Base API URL: `https://cpt.cx`

All documented public endpoints require the `x-api-key` request header. JSON requests use `Content-Type: application/json`.

## Public API products

- URL Short Links API
- OTP API

## Documented endpoints

- `POST /shortlink/public-generate`: Create one branded short link.
- `POST /shortlink/public-generate-batch`: Create multiple branded short links in one request.
- `POST /otp/generate`: Generate an OTP and queue it for delivery by SMS or email.
- `POST /otp/validate`: Validate a generated OTP by `otpId` and code.

## Machine-readable

- [OpenAPI Specification](/docs/openapi.yaml): Conservative API definition for documented Flowstates endpoints.
- [LLMs Manifest](/docs/llms.txt): Curated developer documentation map for language models and agents.
- [Expanded LLM Context](/docs/llms-full.txt): Expanded technical context, examples and documented gaps.