# RubiConnect > Enterprise business-messaging (CPaaS) platform for RCS Business Messaging and WhatsApp Business. Exposes a REST API with a public OpenAPI 3.0.3 contract and an official hosted MCP server (18 tools) for capability checks, rich messaging, inbox, templates, campaigns, agents, and analytics. This llms.txt is generated by API Evangelist from the provider's published OpenAPI, MCP repository, and served OAuth discovery documents. The provider does not serve its own llms.txt (console.rubiconnect.com/llms.txt returns the SPA shell). ## API - [OpenAPI specification](https://console.rubiconnect.com/openapi.json): REST contract, 5 operations. Base URL https://console.rubiconnect.com/api/v1 - Authentication: API key header `X-API-Key` (rc_live_...) or HTTP Bearer token - Send a message: `POST /messages/send` (sendMessage) — text, media card, template, or streamed bulk broadcast from a remote CSV/JSONL URL - Create a campaign: `POST /campaigns` (createCampaign) — dispatch a broadcast to a contact list - Query a campaign: `GET /campaigns` (getCampaign) — status and stats - Check RCS capability: `POST /capabilities/check` (checkCapability) — is a handset RCS-capable, else SMS fallback - Webhooks: client-implemented `POST /webhooks` receiver for `message.status_updated` and `message.received` events (register via the `callbackUrl` field on sendMessage) ## MCP Server - [Hosted MCP endpoint](https://console.rubiconnect.com/api/mcp): OAuth 2.0 + PKCE (scope `mcp`) or Bearer API key. 18 tools. - [MCP source repository](https://github.com/zarelan/rubiconnect-mcp): official stdio bridge to the hosted endpoint (MIT) - Tools: check_capability, send_message, get_inbox_messages, get_conversation_history, list_templates, get_template_detail, create_template, submit_template_to_meta, list_campaigns, get_campaign_status, get_campaign_performance, create_campaign, list_agents, get_agent_profile, get_message_stats, get_server_status, search_images, search_documentation ## Authentication & Discovery - [OAuth authorization-server metadata](https://console.rubiconnect.com/.well-known/oauth-authorization-server) - [OpenID Connect discovery](https://console.rubiconnect.com/.well-known/openid-configuration) - Authorization endpoint: https://console.rubiconnect.com/en/authorize - Token endpoint: https://console.rubiconnect.com/api/oauth/token - Dynamic client registration: https://console.rubiconnect.com/api/oauth/register ## Company - [Website](https://www.rubiconnect.com/en) - [Console / Sign in](https://console.rubiconnect.com) - [Sign up](https://console.rubiconnect.com/en?view=signUp) - Contact: info@rubiconnect.com