Disclosure: Klype is our product and appears in this list. Every statement about another product links to the page it came from. Last checked 31 October 2026.
Comparison
Where a vendor page did not say something, the cell says so. A missing mention is not a claim that a feature is absent.
| Server | What it gives the assistant | Access and auth | Cost as stated |
|---|---|---|---|
| Klype (ours) | Saved voice, product facts, buyer and plan; drafts in your measured voice; a check on any draft; approval record. Never publishes. klype.ai/mcp | Streamable HTTP endpoint at api.klype.ai/api/v1/mcp; 8 tools, 5 read-only; drafting, checking and approval tools write records, and none publishes | Included with a Klype plan; founding prices $39 a month, $99 a quarter, $299 a year |
| HubSpot | Reads CRM records, activities, marketing content and analytics; writes records, landing and website pages, blog posts, campaigns and email drafts. HubSpot docs | Remote server at mcp.hubspot.com; OAuth with PKCE required; follows the installing user's permissions | Page gives no pricing; AEO tools need Marketing Hub Professional or Enterprise |
| Notion | Search, read, create and update pages and databases in your workspace. Notion docs | Remote server hosted by Notion; OAuth; limited to content you can view | Page does not state cost; limiting which clients members can connect needs Enterprise |
| Webflow | Lets an agent work with Webflow projects in natural language; the page does not list specific capabilities. Webflow docs | OAuth; needs an MCP-capable client and a Webflow account with a site you can access | Page does not mention pricing |
| Semrush | SEO API endpoints, Trends API endpoints (by subscription) and read-only Projects API methods, with tools such as domain_overview and keyword_research. Semrush docs | OAuth by default, or API key in a header | Uses API units from your subscription; the page says there are no additional MCP usage fees |
| Ahrefs | 20 tool groups including Site Explorer, Keywords Explorer, Rank Tracker, Site Audit, Brand Radar, Web Analytics and Search Console data. Ahrefs docs | Tool groups selected with a tools URL parameter; auth not stated on that page | Page does not state plan or cost requirements |
| Google Analytics | Natural-language reports and property configuration inspection; read-only. Google docs | Runs locally from the analytics-mcp package; Application Default Credentials; needs at least the Viewer role | Page does not mention pricing |
| Zapier | Connects a client to 9,000+ apps through actions; agentic mode gives 16 fixed meta-tools, managed mode makes each action a tool. Zapier docs | Every call runs through your Zapier app connections and shows in History; OAuth or token per its connect docs | Page does not cover limits or task usage |
| Typeface | Brand Kits, audience profiles, voice and visual guidelines, templates and approved assets; can create projects and generate content in project context. Typeface MCP | OAuth 2.1; works with MCP-compatible clients | Not listed; request a demo |
How we evaluated
- What marketing context the server returns: customer records, search data, site analytics, content or brand rules.
- Whether it can write or only read. Read-only servers are lower risk for a first connection.
- Authentication and where the server runs, as stated in the vendor's own documentation.
- Cost as stated on the page. Several vendors say nothing about cost, and the table says so instead of guessing.
Where Klype fits
Klype is our product, so weigh this section accordingly. Its MCP server is narrow: it hands an assistant your saved voice, product facts, buyer and plan, drafts in your measured voice, checks any draft with review_draft, and records approval. It does not read your CRM, search data or analytics, so it complements the servers above rather than replacing them. It never publishes; a person approves and posts. The server tells clients to read the workspace context before any writing task. Klype launched on 1 October 2026.
Klype's entry price is $39 a month, with a 7-day trial that needs no card. Start it here. Treat this list as a starting point and confirm current prices and features on each vendor's own site before you buy.
Sources
- HubSpot remote MCP server docs, read 31 October 2026.
- Notion MCP overview, read 31 October 2026.
- Webflow MCP getting started, read 31 October 2026.
- Semrush MCP overview, read 31 October 2026.
- Ahrefs MCP tool categories, read 31 October 2026.
- Google Analytics MCP server, read 31 October 2026.
- Zapier MCP, how tools work, read 31 October 2026.
- Typeface MCP, read 31 October 2026.
- Klype free post checker and Klype MCP server: Klype facts come from klype.ai.
Related
- Klype MCP server
- Klype API and HubSpot
- Best AI tools to check content against company facts
- Best brand voice AI tools for B2B teams
- Typeface alternative
Questions
What is an MCP server for marketing?
A service that lets an AI assistant read, and sometimes change, marketing systems such as a CRM, SEO platform, analytics property or brand library through the Model Context Protocol, using the permissions you grant.
Which servers are read-only?
Google Analytics states its server is available for read requests only. Five of Klype's eight tools are read-only and none publishes. HubSpot, Notion and Zapier can write, so review permissions before connecting.
Do I need all of these?
No. Pick by task. Research needs search and analytics data, content work needs your CMS and brand rules, outreach needs CRM context. Each connection widens what the assistant can see.
Which servers cost extra?
Semrush states there are no additional MCP usage fees but requests use API units from your subscription. HubSpot says AEO tools need certain Marketing Hub plans. Several vendors do not state cost on the pages read.
Is this list independent?
No. Klype wrote it and appears in the table. Each other row links to the vendor documentation it came from, read on 31 October 2026. Server features change quickly, so confirm in the linked docs.