Best MCP Servers for AI Agents in 2026

// claude_desktop_config.json
{
  "mcpServers": {
    "filesystem": {
      "command": "npx",
      "args": [
        "@modelcontextprotocol/server-filesystem",
        "/Users/you/projects",
        "/Users/you/documents"
      ]
    }
  }
}

// Agent can now:
// - Read files: read_file({ path: "/Users/you/projects/app/src/index.ts" })
// - Write files: write_file({ path: "/Users/you/projects/app/README.md", content: "..." })
// - List dirs: list_directory({ path: "/Users/you/projects/app/src" })

// claude_desktop_config.json
{
  "mcpServers": {
    "postgres": {
      "command": "npx",
      "args": [
        "@modelcontextprotocol/server-postgres",
        "postgresql://user:pass@localhost:5432/mydb"
      ]
    }
  }
}

// Agent can now:
// - Explore schema: list_tables(), describe_table({ table: "orders" })
// - Run queries: query({ sql: "SELECT customer, SUM(amount) FROM orders GROUP BY 1 ORDER BY 2 DESC LIMIT 10" })

// claude_desktop_config.json
{
  "mcpServers": {
    "brave-search": {
      "command": "npx",
      "args": ["-y", "@brave/brave-search-mcp-server"],
      "env": {
        "BRAVE_API_KEY": "your-brave-api-key"
      }
    }
  }
}

// Agent can now:
// - Web search: brave_web_search({ query: "latest Claude model release date" })
// - Local search: brave_local_search({ query: "Italian restaurants near Times Square" })
// - News, image, and video search are also exposed as separate tools

// claude_desktop_config.json
{
  "mcpServers": {
    "github": {
      "command": "docker",
      "args": [
        "run", "-i", "--rm",
        "-e", "GITHUB_PERSONAL_ACCESS_TOKEN",
        "ghcr.io/github/github-mcp-server"
      ],
      "env": {
        "GITHUB_PERSONAL_ACCESS_TOKEN": "ghp_your_personal_access_token"
      }
    }
  }
}

// Or connect to the hosted remote server at https://api.githubcopilot.com/mcp/

// Agent can now:
// - Search code: search_code({ query: "useState error handling", repo: "org/app" })
// - Create PR: create_pull_request({ repo: "org/app", title: "Fix auth bug", head: "fix/auth", base: "main" })
// - Comment on issue: add_issue_comment({ repo: "org/app", issue: 42, body: "Investigating..." })

// claude_desktop_config.json
{
  "mcpServers": {
    "slack": {
      "command": "npx",
      "args": ["-y", "slack-mcp-server@latest", "--transport", "stdio"],
      "env": {
        "SLACK_MCP_XOXB_TOKEN": "xoxb-your-bot-token"
      }
    }
  }
}

// Agent can now:
// - Search: search_messages({ query: "deployment issue", channel: "#engineering" })
// - Post: post_message({ channel: "#updates", text: "Deploy complete. All checks green." })
// - Read thread: get_thread({ channel: "C0123", ts: "1234567890.123456" })

// claude_desktop_config.json
{
  "mcpServers": {
    "playwright": {
      "command": "npx",
      "args": ["@playwright/mcp@latest"]
    }
  }
}

// Agent can now:
// - Navigate: browser_navigate({ url: "https://example.com/dashboard" })
// - Snapshot: browser_snapshot() // returns the accessibility tree
// - Click: browser_click({ element: "Submit button", ref: "..." })
// - Run JS: browser_evaluate({ function: "() => document.querySelector('h1').textContent" })

// claude_desktop_config.json
{
  "mcpServers": {
    "qdrant": {
      "command": "npx",
      "args": ["mcp-server-qdrant"],
      "env": {
        "QDRANT_URL": "http://localhost:6333",
        "QDRANT_API_KEY": "your-api-key",
        "COLLECTION_NAME": "knowledge_base"
      }
    }
  }
}

// Agent can now:
// - Search: qdrant_search({ query: "how to configure auth", limit: 5 })
// - Filter: qdrant_search({ query: "deployment guide", filter: { category: "devops" }, limit: 3 })

// claude_desktop_config.json
{
  "mcpServers": {
    "notion": {
      "command": "npx",
      "args": ["-y", "@notionhq/notion-mcp-server"],
      "env": {
        "NOTION_TOKEN": "ntn_your_integration_token"
      }
    }
  }
}

// Agent can now:
// - Search: notion_search({ query: "Q1 roadmap", filter: { type: "page" } })
// - Read page: notion_get_page({ page_id: "abc123" })
// - Query DB: notion_query_database({ database_id: "def456", filter: { status: "In Progress" } })

// claude_desktop_config.json
{
  "mcpServers": {
    "memory": {
      "command": "npx",
      "args": ["@modelcontextprotocol/server-memory"]
    }
  }
}

// Agent can now:
// - Store: create_entity({ name: "Ethan", type: "person", observations: ["prefers dark mode", "works on Mixpeek"] })
// - Relate: create_relation({ from: "Ethan", to: "Mixpeek", type: "works_at" })
// - Recall: search_entities({ query: "Ethan" })

// claude_desktop_config.json
{
  "mcpServers": {
    "gdrive": {
      "command": "npx",
      "args": ["-y", "@isaacphi/mcp-gdrive"],
      "env": {
        "CLIENT_ID": "your-client-id.apps.googleusercontent.com",
        "CLIENT_SECRET": "your-client-secret",
        "GDRIVE_CREDS_DIR": "/path/to/creds"
      }
    }
  }
}

// Agent can now:
// - Search: gdrive_search({ query: "Q1 planning doc" })
// - Read: gdrive_read_file({ file_id: "1abc..." })
// - List: gdrive_list_files({ folder_id: "root", page_size: 20 })

// claude_desktop_config.json
{
  "mcpServers": {
    "sentry": {
      "command": "npx",
      "args": ["@sentry/mcp-server"],
      "env": {
        "SENTRY_AUTH_TOKEN": "sntrys_your_auth_token",
        "SENTRY_ORG": "your-org-slug"
      }
    }
  }
}

// Agent can now:
// - Search: sentry_search_issues({ query: "is:unresolved level:error", project: "api" })
// - View: sentry_get_issue({ issue_id: "12345" }) // includes stack trace
// - Resolve: sentry_update_issue({ issue_id: "12345", status: "resolved" })

// claude_desktop_config.json
{
  "mcpServers": {
    "stripe": {
      "command": "npx",
      "args": ["@stripe/mcp"],
      "env": {
        "STRIPE_SECRET_KEY": "sk_live_your_restricted_key"
      }
    }
  }
}

// Agent can now:
// - Look up: stripe_get_customer({ email: "[email protected]" })
// - Check: stripe_list_payments({ customer: "cus_abc", limit: 5 })
// - Create: stripe_create_invoice({ customer: "cus_abc", items: [{ price: "price_xyz" }] })

// claude_desktop_config.json
{
  "mcpServers": {
    "linear": {
      "command": "npx",
      "args": ["-y", "mcp-remote", "https://mcp.linear.app/mcp"]
    }
  }
}

// On first run, mcp-remote opens an OAuth flow in your browser to authorize Linear.

// Agent can now:
// - Create: linear_create_issue({ title: "Fix auth timeout", team: "ENG", priority: 2 })
// - Search: linear_search_issues({ query: "auth bug", status: "In Progress" })
// - Update: linear_update_issue({ id: "ENG-42", status: "Done" })