Github MCP Server Alternatives

Free and open-source alternatives to Github MCP Server

• Linear MCPfree
• Sentry MCPfree
• Cloudflare MCPfree
• DeepWiki MCPfree
• GitMCPopen source
• Postgres MCP Proopen source
• Serenaopen source
• Slack MCP Serveropen source
• Stripe MCPfree
• Supabase MCPopen source

Github MCP Server alternatives in detail

1. Linear MCP

   freeWebMCP

   Linear's centrally hosted MCP server connects agents to your issue tracker: find, create, and update issues, projects, and comments. One command (claude mcp add --transport http linear-server https://mcp.linear.app/mcp), an OAuth browser flow, and your agent can turn 'fix LIN-123' into reading the actual ticket — and closing it with a comment when the PR is up.

2. Notion MCP

   freemiumWebMCP

   Notion's hosted MCP server (mcp.notion.com) exposes 18 tools built around Notion-flavored Markdown for token efficiency: notion-search across the workspace (and connected Slack/Drive/Jira with Notion AI), notion-fetch by URL, page and database create/update/move, comments, and user/team lookups. OAuth-only — one claude mcp add plus a browser flow, and your workspace becomes agent-readable.

3. Sentry MCP

   freeFSL-1.1-Apache-2.0Web, macOS, Windows, LinuxMCP

   Sentry MCP connects agents to production reality: 38 tools for searching issues and events, pulling stack traces and trace details, updating and annotating issues, and invoking Seer root-cause analysis. For Claude Code, Sentry ships it as a plugin that installs a sentry-mcp subagent — errors get debugged against the actual telemetry instead of your memory of it.

4. Cloudflare MCP

   freeApache-2.0WebMCP

   Cloudflare ships two kinds of official MCP servers, all hosted: 16 domain servers (docs, Workers bindings and builds, observability, browser rendering, Radar, and more at <name>.mcp.cloudflare.com/mcp) and the newer Code Mode server at mcp.cloudflare.com/mcp, which exposes the entire 2,500-endpoint Cloudflare API in about 1k tokens by letting the agent write code against the API spec server-side.

5. DeepWiki MCP

   freeWebMCP

   DeepWiki MCP is Cognition's free, remote, no-authentication MCP server for public GitHub repos. Its three tools let an agent list a repo's wiki topics, read DeepWiki's generated documentation, and ask questions that return a context-grounded AI answer. It's a proprietary hosted service; private repos go through the separate Devin MCP with a Devin API key.

6. GitMCP

   open sourceApache-2.0WebMCP

   GitMCP is a free, Apache-2.0 remote MCP server that turns any public GitHub repo into a documentation endpoint. Point your agent at gitmcp.io/{owner}/{repo} and it can fetch and search that project's docs, preferring llms.txt, and search its code through GitHub's search API. There's no install, signup, or API key, and it only reads public content.

7. Postgres MCP Pro

   open sourceMITmacOS, Windows, LinuxMCP

   Postgres MCP Pro (MIT) is the maintained successor to the archived reference Postgres server — and goes further: alongside schema browsing and execute_sql with a restricted read-only mode, it pairs the LLM with classical optimization algorithms: explain_query with hypothetical-index simulation, workload index analysis via pg_stat_statements, and a multi-dimension analyze_db_health check.

8. Serena

   open sourceMITmacOS, Windows, LinuxMCP

   Serena (MIT, ~29k stars as of September 2026) is 'the IDE for your agent': an MCP server backed by language servers giving agents symbol-level tools — find symbol, find references, replace symbol body, rename — across 40+ languages. Precise, token-efficient edits at the symbol level instead of regex surgery, plus a project memory for cross-session knowledge.

   Read: The Best MCP Servers in 2026

9. Slack MCP Server

   open sourceMITmacOS, Windows, LinuxMCP

   Anthropic's reference Slack server was archived in 2025; korotovsky/slack-mcp-server (MIT, v1.3+) is the maintained community standard. Seventeen tools: smart history fetch with 1d/7d/30d windows, message and thread search, channel listings, reactions, user-group management, and unread tracking — with message posting disabled by default and enabled per-channel via env vars.

10. Stripe MCP

    freeMITWeb, macOS, Windows, LinuxMCP

    Stripe's official MCP server — hosted at mcp.stripe.com with OAuth, or local via npx @stripe/mcp — lets agents work the Stripe API: create and list customers, products, prices, and invoices, generate payment links, manage subscriptions and refunds, handle disputes, and search Stripe's documentation. Tool availability follows your key's permissions, so a restricted key is the safety mechanism.

11. Supabase MCP

    open sourceApache-2.0Web, macOS, Windows, LinuxMCP

    Supabase's official MCP server (hosted, Apache-2.0) lets agents work a Supabase project end to end: execute_sql and apply_migration, list tables and extensions, fetch service logs and security/performance advisors, generate TypeScript types, deploy Edge Functions, and manage branches. URL params scope it down — project_ref pins one project, read_only=true disables every mutating tool.