# Core Concepts

- [Brokers (Connections)](/docs/core-concepts/brokers-connections.md)
- [Signals](/docs/core-concepts/signals.md)
- [JSON Message Template Creator](/docs/core-concepts/signals/json-message-template-creator.md)
- [JSON Message Reference](/docs/core-concepts/signals/webhooks.md): TradersPost allows third party applications like TradingView and TrendSpider to integrate with your connected brokers via webhooks sending JSON messages.
- [Strategies](/docs/core-concepts/strategies.md)
- [Subscriptions](/docs/core-concepts/subscriptions.md)