Tools
Caspian Bets That the Missing Agent Layer Is Messaging, Shipping One SDK for Email, WhatsApp, Slack, Discord, Telegram and SMS
TryCaspian/caspian-sdk (created 2026-07-20) is at 399 stars with an unusually high 127 forks and 47 open issues, a ratio suggesting people are actually running it rather than just starring it. It offers Python and TypeScript clients for one agent communication layer across email, WhatsApp, Slack, Discord, Telegram, SMS and iMessage, with LangChain, CrewAI and MCP integrations listed in its topics. The catch a builder should register before adopting it is licensing: it is AGPL-3.0 with a commercial homepage at trycrspianai.com, so embedding it in a closed product has obligations that the MIT-by-default agent ecosystem does not condition people to check.
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