I believe in an MCP-less future of agent-service interactions and have recently submitted this general alternative (which also supports Slack) based on curl: https://github.com/imbue-ai/latchkey
With that said, a specialized tool like this will almost certainly work better if Slack is the only service you want your agents to interact with. I like that the auth is transparent.
With that said, a specialized tool like this will almost certainly work better if Slack is the only service you want your agents to interact with. I like that the auth is transparent.