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4 Best Slack MCP Server Alternatives in 2026 (Free & Paid)

Slack MCP Server is community Slack MCP server to read, search and optionally post in channels, threads and DMs, priced at open source. If it is too expensive, missing a feature or simply not for you, these are the strongest alternatives we have reviewed.

Why look for a Slack MCP Server alternative?

  • Headline 'stealth mode' relies on session tokens copied from your browser, which bypasses admin approval and may breach workspace policy or Slack's terms
  • Not an official Slack product; several tools only work with browser session tokens

Each option below covers the same job from a different angle.

1

Stripe MCP Free

Stripe's MCP server and agent toolkit for payments, customers and docs

8.0/10

What it does Stripe MCP is Stripe's official server for connecting AI agents to the Stripe API and to Stripe's documentation and support knowledge base. When you are building payments into an app, the agent can look up the right API method, check exact parameters and read Stripe's docs, then create products, prices, payment links or checkout sessions for testing.… Read more →

Pros

  • Official Stripe tooling
  • Docs search included

Cons

  • Use restricted keys and test mode

Pricing: Free  ·  payments

🔥 Deal: Stripe Atlas: $2,500 in Stripe product credits for your first year after incorporation, plus $50,000+ in partner discounts (Google, Xero, Op

2

Linear MCP Freemium

Linear's hosted MCP server for issues, projects and comments

8.0/10

What it does Linear MCP is Linear's official hosted server for connecting AI agents to your Linear workspace. With it, a coding agent can find the ticket it is supposed to work on, read the details and comments, open follow-up issues for anything it finds, and update status or leave a comment when it is done. You do not have… Read more →

Pros

  • Official, remote, OAuth

Cons

  • Needs a Linear workspace

Pricing: Freemium  ·  issues project management

🔥 Deal: Startup program: free Business plan access via 466+ partner VCs/accelerators/communities, or use Linear's free plan directly

3

Notion MCP Freemium

Notion's MCP server: search, read and write pages and databases

★ 4.7k · +8 this week · MIT · updated 2026-09-20

7.9/10

What it does Notion MCP connects AI agents to your Notion workspace, letting them search, read, create and update pages and databases. A coding agent can use it to pull a spec or PRD straight into its context, write release notes or a technical doc back into Notion, or update a task database when work ships. It comes in two… Read more →

Pros

  • Official
  • Hosted with OAuth or local

Cons

  • Broad workspace access; limit it

Pricing: Freemium  ·  notion docs

🔥 Deal: Startups: 6 months of Notion Business free (up to $12,000 value); shorter tiers for smaller teams

4

Excel MCP Server Open source

MCP server to create, read and edit Excel workbooks without Excel installed

★ 4.2k · +13 this week · MIT · updated 2026-09-28

6.8/10

What it does Excel MCP Server lets an AI agent create, read and edit Excel workbooks without Microsoft Excel installed. It is a Python server that works directly on .xlsx files, so an agent can generate reports, fill in data, add formulas and charts, or restructure sheets as part of a larger task. It is a popular choice for spreadsheet… Read more →

Pros

  • Broad toolset: formulas, charts, pivot tables, formatting
  • No Microsoft Excel needed
  • stdio and Streamable HTTP transports

Cons

  • stdio mode lets the agent write any path your user can
  • Last commit April 2026

Pricing: Open source  ·  excel spreadsheets xlsx python charts

Free and open-source Slack MCP Server alternatives

Excel MCP Server 🔌 MCP serverOpen source

MCP server to create, read and edit Excel workbooks without Excel installed

★ 4.2k · +13 this week

6.8 Visit ↗

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