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Compare MCP servers

Compare scores, permissions, risks, and fit in one decision-focused table.

DimensionContextStream MCP ServerPersistent memory and semantic code search for AI coding assistantsGitHub MCP ServerGitHub's official MCP server for managing repos, issues, PRs, and workflows via natural language
FMRS73 / 100 · B76 / 100 · B
Reliability10 / 2013 / 20
Security and permissions15 / 2014 / 20
Maintenance15 / 2018 / 20
Documentation18 / 2017 / 20
Setup experience15 / 2014 / 20
Best for
  • Developers on long-running projects using Claude Code, Cursor, Windsurf, or similar tools
  • Teams needing cross-session memory and codebase understanding
  • Teams that want an AI assistant to directly operate on GitHub repos and collaboration workflows
  • Users already in the GitHub Copilot ecosystem who want a zero-deployment remote option
Not for
  • Users unwilling to index code to a cloud service
  • One-off scripts that need no persistent context
  • Scenarios where you don't want the assistant to have write access to repos (enable only read-only toolsets)
  • Environments with strict network isolation for private repos that can't reach the official remote endpoint
Required permissions
  • Requires a ContextStream API key (secret env var)
  • Reads and indexes project code files
  • Optionally connects GitHub, Slack, and Notion integrations
  • Writes MCP configs, rules, and lifecycle hooks into editor settings
  • A personal access token (PAT) or OAuth App token; effective scope depends on the token's own permissions
  • Enabling toolsets like actions/issues/pull_requests grants write access — request tokens on a least-privilege basis
Risks and side effects
  • Indexed code is stored in ContextStream's cloud (vendor states isolation per workspace)
  • A leaked API key could expose workspace data
  • Breaking changes with @modelcontextprotocol/sdk 1.28.0+
  • Hosted HTTP OAuth may be blocked on corporate networks
  • Write toolsets (creating/merging PRs, triggering workflows) can cause accidental changes if the token is overscoped — try a read-only toolset first
  • In hosted mode, credentials travel via the Authorization header — make sure the client-to-api.githubcopilot.com connection is trusted
Supported clientsClaude Code, Cursor, Windsurf, Cline, Roo Code, VS Code + GitHub Copilot, Kilo Code, Codex, OpenCode, Aider, Antigravity, Claude DesktopClaude Desktop, Claude Code, VS Code, Cursor, Windsurf, JetBrains IDEs, Zed, Amp
Tools1715