Close Crm vs Kernel MCP Server — MCP Server Comparison | AllMCPs
Side-by-Side Model Context Protocol Comparison
Close Crm vs Kernel MCP Server
In-depth architectural comparison of the Close Crm and Kernel MCP Server MCP servers. Compare execution transports, security boundaries, tool capabilities, quality scores, and ready-to-paste client installation snippets for Claude, Cursor, Windsurf, and VS Code.
At a Glance & Executive Verdict
Close Crm
Developer Tools · Remote HTTP/SSE
Quality: 49/100 (Fair) | Auth: No auth required
Kernel MCP Server
Developer Tools · Local stdio
Quality: 57/100 (Good) | Auth: No auth required
Verdict Summary: Choose Close Crm if you need specialized Developer Tools tools running via a hosted cloud SSE transport. Choose Kernel MCP Server if your workspace requires Developer Tools integration with local subprocess execution. Both servers can be configured concurrently in your client's mcpServers manifest.
Which MCP Server Should You Choose?
C
Choose Close Crm when:
You need dedicated capabilities in the Developer Tools domain.
You prefer remote streaming HTTP/SSE transport architecture.
Your security boundary fits: No auth required (Free / Open Source).
Get the current Close user and organization for the supplied API key. Returns user ID, name, email, and the organizations (with IDs) the key can access. Use this to verify the key works and discover your organization context.
close_search_leads
Search or list leads (companies/accounts in Close) using Close's query language. Returns a `data` array of leads (with id, display_name, contacts, status, custom fields) plus `has_more` and `total_results`. The `query` param accepts Close search syntax, e.g. `name:"Acme"`, `status_label:"Potential"…
close_get_lead
Get a single lead by its Close lead ID (format `lead_...`). Returns full detail: display name, description, status, contacts, addresses, opportunities, custom fields, and timestamps.
close_list_opportunities
List opportunities (pipeline deals) in Close. Returns a `data` array of opportunities with id, lead_id, status, value, currency, confidence, and expected close date, plus `has_more` / `total_results`. Pass `lead_id` to scope to one lead, or omit to list across the organization. Page with `_limit` /…
Ready-to-Paste Client Configurations
Paste either (or both) of these JSON server blocks into your client config file (e.g. claude_desktop_config.json or ~/.cursor/mcp.json).
Close Crm is categorized under Developer Tools and uses a remote streaming HTTP/SSE transport. In contrast, Kernel MCP Server belongs to Developer Tools using local stdio subprocess. Select Close Crm when you need capabilities focused on developer tools and Kernel MCP Server when you require tools for developer tools.
List contacts (people) in Close. Returns a `data` array of contacts with id, lead_id, name, title, emails, and phones, plus `has_more` / `total_results`. Optionally filter to one lead with `lead_id`. Page with `_limit` / `_skip`.
close_list_activities
List activities for a lead — calls, emails, notes, SMS, meetings, and status changes. Returns a `data` array (with id, _type, type, date_created, and type-specific fields) plus `has_more` / `total_results`. Requires `lead_id`. Page with `_limit` / `_skip` to walk a lead's timeline.
Kernel MCP Server Tools (21)
manage_browsers
Create, update, list, get, and delete browser sessions, and read archived telemetry for active or deleted sessions. Supports headless/stealth modes, profiles, proxies, viewports, extensions, names and tags, and SSH tunneling. The browser tools (`manage_browsers`, `computer_action`, `execute_playwri…
manage_profiles
Setup (with guided live browser session), search/list with pagination, get, and delete browser profiles for persisting cookies and logins.
manage_projects
Create, list, get, update, and delete organization projects. Inspect and update per-project resource limits.
manage_api_keys
Create, list, get, update, and delete org-wide or project-scoped API keys. Create returns the plaintext key once.
manage_browser_pools
Create, list, get, delete, and flush pools of pre-warmed browsers. Acquire and release browsers from pools.
Start, stop, and list MP4 video replay recordings for a browser session. Session-scoped: start once, run your automation, then stop. Requires a paid Kernel plan.
manage_extensions
List and delete uploaded browser extensions.
manage_apps
List/search apps, invoke actions, get/list/delete deployments, and get invocation results.
manage_auth_connections
Create, list, get, update, delete, login, submit, inspect timelines, and wait for managed-auth connections in every client. Supports health-check and automatic re-auth settings, managed-auth browser configuration, and canonical interaction-bound field/choice submissions. Use domain-filtered `list`…
manage_credentials
Create, list, get, update, and delete stored credentials; fetch a current TOTP code for credentials with a configured totp_secret.
manage_credential_providers
Create, list, get, update, and delete external credential providers (e.g. 1Password); list available items and test the provider connection.