# Charles (charlesAI) > Berlin-based conversational commerce and CRM platform that lets brands sell, market, and support customers over WhatsApp, Instagram, Facebook Messenger, and Webchat. Charles connects chat-app APIs with e-commerce and CRM systems (Shopify, Salesforce, SAP, HubSpot) and layers AI agents over them. It exposes a token-authenticated HTTP API organized around per-tenant "universe" hosts plus a central api.hello-charles.com service, a public Postman workspace, and a (deprecated) JavaScript/TypeScript browser SDK on npm. ## API - [Charles API reference (browser SDK docs)](https://c-commerce.github.io/charles-browser-sdk/): TypeScript SDK documentation covering auth, universe configuration, and resources. - [API host](https://api.hello-charles.com): central API service (bearer-token authenticated). - [Postman workspace](https://www.postman.com/hello-charles/workspace/charles/): public Postman workspace for the Charles API. ## SDKs - [@heycharles/browser-sdk (npm)](https://www.npmjs.com/package/@heycharles/browser-sdk): first-party JavaScript/TypeScript browser SDK (Apache-2.0, deprecated). - [charles-browser-sdk (GitHub)](https://github.com/c-commerce/charles-browser-sdk): SDK source. - [c-commerce GitHub organization](https://github.com/c-commerce): Charles engineering org. ## Docs - [Product](https://www.hello-charles.com/product): platform overview. - [Integrations](https://www.hello-charles.com/integrations): Shopify, CRM, and service-tool integrations. - [Help Center](https://help.hello-charles.com/): support documentation. - [Blog](https://www.hello-charles.com/blog): company blog. - [Status](https://status.hello-charles.com/): Charles Internal Services status page. ## Authentication - Bearer-token auth obtained via username/password login (see authentication/charles-co-authentication.yml). ## Legal - [Privacy Policy](https://www.hello-charles.com/privacy-policy/) - [Imprint](https://www.hello-charles.com/imprint/) ## Repo artifacts - packages/charles-co-packages.yml — first-party SDK - authentication/charles-co-authentication.yml — auth profile - conventions/charles-co-conventions.yml — cross-cutting conventions - lifecycle/charles-co-lifecycle.yml — status page + lifecycle - security/charles-co-domain-security.yml — TLS/DNS posture