The foundation runtime bundled free into sgcAI, sgcMQ, sgcSocial and sgcCustomIndy. Core is not sold on its own, it is the HTTP, TLS and JSON layer that every one of those packs carries with it. This page lists exactly what it contains.
Every sgcAI, sgcMQ, sgcSocial and sgcCustomIndy license carries a Core entitlement, charged at zero, alongside the pack itself. This is what that entitlement unlocks.
An HTTP client, plus a base Indy-model HTTP server with multipart form data and Amazon AWS request-signing helpers other components call into. This is the transport sgcAI's LLM providers and MCP server, and sgcSocial's WhatsApp Graph API calls and webhook, run over. The high-performance IOCP, EPOLL and HTTP.SYS server models are part of sgcWebSockets Professional and Enterprise, not Core.
TsgcTCPClient, the raw TCP carrier every other protocol client in the sgc catalogue sits on top of, plus a UDP client component.
The TLS/SSL helpers, constants and encryption routines every client and server in the box relies on for secure connections, including TLS over UDP.
The JSON reader and writer every component in the sgc catalogue serializes its payloads with, from HTTP payloads to LLM chat requests.
A WebView component for hosting web content inside a VCL or FireMonkey form.
Core is deliberately the small, shared foundation. Everything protocol- or feature-specific is either in one of the four packs, or in a full sgcWebSockets edition.
| Not in Core | Where to get it |
|---|---|
| WebSocket protocol (RFC 6455) | sgcWebSockets Standard and higher |
| OAuth2 client & JWT toolkit | sgcWebSockets Standard and higher |
| MQTT, AMQP 0.9.1, AMQP 1.0, Apache Kafka, STOMP | sgcMQ, or sgcWebSockets Standard and higher |
| Telegram TDLib & WhatsApp Business Cloud API clients | sgcSocial, or sgcWebSockets Standard/Professional |
| AI/LLM chat, MCP client & server, embeddings, vector search, speech | sgcAI, or sgcWebSockets Enterprise |
| HTTP/2 | sgcWebSockets Professional and higher |
| High-performance IOCP, EPOLL and HTTP.SYS server models, load balancer, proxy, firewall | sgcWebSockets Professional and higher |
| IoT / CoAP | sgcWebSockets Enterprise |
| gRPC | sgcWebSockets Enterprise |
| QUIC / HTTP/3 | sgcQUIC, a sgcWebSockets Enterprise add-on |
| Custom Indy library: ALPN, TLS 1.3 over OpenSSL 1.1.1 and 3.x, static OpenSSL linking | sgcCustomIndy, or sgcWebSockets Enterprise |
Core is not a product you buy directly. It exists as a zero-priced entitlement that rides along with every sgcAI, sgcMQ, sgcSocial and sgcCustomIndy license, so each pack is a complete install: one SKU, one installer, nothing else to add to the order. sgcCustomIndy is the one that never starts an order on its own, it is added as the recommended add-on inside a Core order.
Already own sgcWebSockets Standard, Professional or Enterprise? You already have everything listed on this page and more. sgcAI, sgcMQ and sgcSocial ship the same components under a full edition too, there is no need to also install Core. The custom Indy library that sgcCustomIndy carries ships with Enterprise and All-Access, not with Standard or Professional. See which edition you need or the full sgcWebSockets pricing.