mcp-server-slack
mcp-server-slack is an MCP (Model Context Protocol) server that integrates a client/agent with Slack, enabling the agent to perform Slack-related actions and/or fetch information via MCP tools.
Score Breakdown
⚙ Agent Friendliness
🔒 Security
Specific security controls (TLS requirement in transport, how secrets are passed/stored, and Slack scope minimization) are not verifiable from the provided information. Treat Slack credentials and tool permissions as high-sensitivity.
⚡ Reliability
Best When
You want an agent-driven Slack integration using the MCP tool standard rather than building custom Slack logic.
Avoid When
You need a strict REST/GraphQL/SDK interface instead of MCP, or you cannot obtain/handle required Slack credentials securely.
Use Cases
- • ChatOps: letting an agent respond to Slack messages
- • Automating Slack workflows (e.g., posting updates, creating summaries)
- • Retrieving Slack context (messages/channels) for agent reasoning
- • Building internal support/ops assistants backed by Slack data
Not For
- • High-security environments without clear Slack auth scoping and secrets management documentation
- • Latency-sensitive realtime applications where Slack tool calls would be too slow
- • Use cases requiring complex enterprise compliance guarantees not documented by the package
Interface
Authentication
Authentication details (OAuth vs token, required scopes, and how credentials are supplied) are not present in the provided content, so exact auth strength/scoping cannot be verified.
Pricing
No pricing information provided; as an MCP server, cost is typically determined by your hosting/infrastructure and any Slack plan/API limits.
Agent Metadata
Known Gotchas
- ⚠ Slack API rate limits can cause tool failures; agents may need retry/backoff logic if not documented
- ⚠ Agents may unintentionally post/DM sensitive content if message-posting tools are not permissioned/scoped carefully
- ⚠ Slack message retrieval may require correct channel identifiers and/or pagination handling
Alternatives
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Scores are editorial opinions as of 2026-04-04.