MCP server
Slack MCP server
Slack hosts an official MCP server, available to approved AI clients and managed by workspace admins. Modiva's Slack MCP server plays a different role: it works with any MCP client through your Modiva key, exposes 10 typed messaging tools, and sits in the same server as your social, ads and commerce platforms.
The most useful Slack automations are endpoints of other workflows: post the weekly ads report to #marketing, alert #support when a one-star review lands, drop new Shopify orders in #sales. Because Modiva hosts Slack tools beside those other platforms, an agent completes the whole loop through one server: read from one tool, post to Slack with another, no webhook glue between systems.
10 typed Slack tools
Grouped by resource, not by platform — so the same tool names work across every connected account.
accounts_
get · workspace identity
channels_
list · history · join
messages_
send · update · delete
users_
list · get
reactions_
add
Add it to your AI client
Point any MCP-compatible client (Claude, Cursor, Windsurf, …) at the hosted server and the Slack tools are discovered automatically.
{
"mcpServers": {
"modiva": {
"url": "https://mcp.modiva.ai/v1",
"headers": { "Authorization": "Bearer mk_live_…" }
}
}
}Connect Slack to your agent
Get your MCP key — freeFAQ
How is this different from Slack's official MCP server?
Slack's official server is aimed at approved AI clients connecting to Slack data under admin management. Modiva's works from any MCP client with your Modiva key and is built for cross-platform workflows, where Slack is the reporting or alerting end of an agent that also reads ads, social or store data.
What Slack actions can an agent take?
Send, update and delete messages, browse channels and history, look up members and add reactions: the operational core of posting reports and alerts where the team already looks.
How does the Slack connection get authorized?
Standard Slack OAuth from the Modiva dashboard. You pick the workspace and approve the scopes; tokens are envelope-encrypted like every other Modiva connection.
Related
Modiva is a hosted, multi-tenant MCP server. Your Slack tokens are encrypted and never shared between workspaces.