Slack: connect your own account

Set up

Set up Slack in Claude Code, Codex or any agent

1Give this to your agent

in your agent's chat

set up treg — https://treg.tracea.online/llms.txt

2Or add the MCP server yourself

claude code

claude mcp add --transport http treg https://treg.tracea.online/mcp

ChatGPT

Settings → Connectors → add https://treg.tracea.online/mcp as a custom connector.

Grok bot

Add https://treg.tracea.online/mcp as a remote MCP connector in its tool settings.

Claude Desktop

Settings → Connectors → Add custom connector → https://treg.tracea.online/mcp.

Cursor, Codex, any MCP client

Point it at https://treg.tracea.online/mcp (HTTP transport).

CLI

curl -fsSL https://treg.tracea.online/install.sh | sh

Plain HTTP

LangChain, CrewAI or any code: /call/<tool-id> + X-Treg-Token: <token>. No SDK.

Why treg.to

Why call Slack through treg.to

Your account, held safely

Connect once; treg.to keeps the credential server-side and injects it per call. No key on any machine.

Price before the call

The provider's own rate, $0.000 markup. How billing works.

Account billing

Calls through your own connection are not metered by treg.

Your account connection

Connect your account with the provider's supported authentication method.

Switch by changing a word

Another provider is a different word in the prompt, not a new integration.

One key, the whole catalog

The same token calls every provider in the catalog and 3,272 other tools.

The shelf

All 9 Slack tools

Slack · 8 tools

Slack channel details by id — topic, member count · Own connection required · free
Get a Slack channel's details — topic, purpose, member count and archived state slack.slack.channel.info
included with your workspace; Slack rate-tiers apply (Tier 3, ~50 requests/minute)
List your Slack workspace channels, public and private · Own connection required · free
List the channels in your Slack workspace, public and private slack.slack.channels.list
included with your workspace; Slack rate-tiers apply (Tier 2, ~20 requests/minute)
Send a Slack message to a channel or thread · Own connection required · free
Post a message to a Slack channel, or reply in a thread slack.slack.message.send
included with your workspace; Slack rate-tiers apply (~1 message/second per channel)
Read recent messages from a Slack channel · Own connection required · free
Read recent messages from a Slack channel slack.slack.messages.history
included with your workspace; Slack rate-tiers apply — 1 request/minute for non-Marketplace apps created after 2025-05-29
Add an emoji reaction to a Slack message · Own connection required · free
Add an emoji reaction to a Slack message slack.slack.reaction.add
included with your workspace; Slack rate-tiers apply (Tier 3, ~50 requests/minute)
Read the replies in a Slack message thread · Own connection required · free
Read the replies in a Slack message thread slack.slack.thread.replies
included with your workspace; Slack rate-tiers apply — 1 request/minute for non-Marketplace apps created after 2025-05-29
Slack member profile by user id · Own connection required · free
Get a Slack workspace member's profile by user ID slack.slack.user.profile
included with your workspace; Slack rate-tiers apply (Tier 4, ~100 requests/minute)
List the members of your Slack workspace · Own connection required · free
List the members of your Slack workspace slack.slack.users.list
included with your workspace; Slack rate-tiers apply (Tier 2, ~20 requests/minute)

The provider account itself — usage, quota, balance (not a content platform) · 1 tools

Check the connected Slack workspace and bot identity · Own connection required · helper · free
Check which Slack workspace and bot identity the token belongs to slack.account.identity
included with your workspace; requires no scopes and is not rate-tiered like the data methods

Reliability badges come from live traffic through treg.to. Live-verified means a successful provider check; it does not verify every request variant.

Questions

Before you start

Do I need a Slack account?

Yes. This is an own-account connection: you sign in to Slack once and your agent uses that connection through your treg.to token. Calls on it are never metered.

How do I add Slack to Claude Code?

Run: claude mcp add --transport http treg https://treg.tracea.online/mcp. One MCP server carries Slack and the rest of the catalog.

Which frameworks does it work with?

Anything that speaks MCP (Claude Code, Claude Desktop, ChatGPT, Codex, Cursor, Grok) and anything that can make an HTTP request (LangChain, CrewAI, LlamaIndex, plain code).

Is this the official Slack MCP server?

No. treg.to serves Slack's real API through its own metered proxy: the request is the provider's own, the credential is injected server-side, and the answer is relayed verbatim. The official Slack channels are linked above.