Best Marketing and SEO Plugins, Skills, and MCP Servers in 2026

AllSEO & ContentSocialEmailAds

#	Name	Best for	Est. installs About install estimates
1	Google Ads	Google Ads reporting, read-only	50K
2	Marketing Skills	49 skills across marketing and growth	45K
3	Buffer	Scheduling via your Buffer queue	30K
4	Anthropic Marketing	Anthropic’s official marketing bundle	30K
5	Ahrefs	Ahrefs keyword and backlink data	30K
6	Semrush	Semrush competitive research	25K
7	Klaviyo	Ecommerce email and SMS campaigns	25K
8	Brevo	Email and SMS campaigns in Brevo	25K
9	SearchFit	Free all-in-one SEO plugin	20K
10	Metricool	Scheduling plus social analytics	20K
11	ActiveCampaign	Lifecycle automation in ActiveCampaign	20K
12	Hootsuite	Enterprise social management	20K
13	Substack	Read-only Substack publication metrics	20K
14	Google Search Console	Your own search performance data	15K
15	Typefully	Drafting and scheduling X threads	15K
16	MailerLite	Newsletter campaigns in MailerLite	15K
17	Amazon Ads	Amazon Ads campaigns and reporting	15K
18	Iterable	Iterable campaigns, safe by default	10K
19	Customer.io	Lifecycle messaging campaigns	10K
20	Kit	Creator email and newsletters on Kit	10K
21	Postiz	Open-source posting to every network	9K
22	DataForSEO	Raw SERP and keyword data by API	6K
23	beehiiv	Read-only beehiiv publication data	6K
24	Ayrshare	One social API across 13+ networks	5K

Show moreShow less

---

​

Google Ads

Google Ads reporting, read-only

50Kestimated installs

What it isGoogle’s official Google Ads MCP server: account discovery and natural-language performance analysis over your campaigns. Deliberately read-only - it reports, it doesn’t change bids.

When to useCampaign reporting and analysis in plain language. Meta and LinkedIn publish no official routes - Amazon Ads is the only other first-party ads option.

What you needA Google Ads account and API developer token.

InstallMCP

​

Marketing Skills

by Corey Haines

49 skills across marketing and growth

45Kestimated installs

What it isCorey Haines’s Marketing Skills collection: 49 installable skills spanning SEO, content, copywriting, CRO, paid marketing, analytics, lifecycle, sales, and growth. Install the full collection or select only the skills you need.

When to useWhen you want one broad marketing toolkit instead of separate skill bundles. Use the relevant skills for the job, and connect first-party data sources such as Search Console or Google Ads when the work depends on live account data.

InstallSkill

​

Buffer

Scheduling via your Buffer queue

30Kestimated installs

What it isBuffer’s official MCP: the agent reviews your content calendar, brainstorms and saves ideas, and drafts or schedules posts into your existing Buffer queue.

When to useThe simplest hosted route if you already use Buffer - nothing to self-host, and the free tier works.

What you needA Buffer account; the free tier works.

InstallMCP

​

Anthropic Marketing

by Anthropic

Anthropic’s official marketing bundle

30Kestimated installs

What it isAnthropic’s official marketing plugin: campaign planning, content creation, brand voice, competitive analysis, SEO audits, and email sequences bundled as one workflow set, with connections to marketing tools.

When to useA solid single install if you want broad coverage without assembling individual skills. Specialist skills go deeper on each job it covers.

What you needCurrently a Claude-only plugin.

InstallPlugin

​

Ahrefs

Ahrefs keyword and backlink data

30Kestimated installs

What it isAhrefs’ official hosted MCP server: live keyword research, SERP data, backlinks, competitor analysis, content gaps, and rank tracking from the Ahrefs index, exposed as about forty tools.

When to useIf your team already pays for Ahrefs, this makes the subscription agent-native - competitor and backlink work especially. Don’t buy Ahrefs just for this; Search Console plus DataForSEO covers most solo needs.

What you needA paid Ahrefs plan.

InstallConnectorMCP

​

Semrush

Semrush competitive research

25Kestimated installs

What it isSemrush’s official remote MCP: keyword and domain analytics, backlinks, traffic estimates, and competitive research from the Semrush index.

When to useSame logic as Ahrefs - it makes an existing subscription agent-native. Pick whichever index your team already trusts; running both buys little.

What you needA Semrush account.

InstallConnectorPluginMCP

​

Klaviyo

Ecommerce email and SMS campaigns

25Kestimated installs

What it isKlaviyo’s official MCP server with read and write access: customer profiles, segments, events, campaign data, and email/SMS lifecycle workflows.

When to useEcommerce lifecycle marketing where Klaviyo is already the system of record. Write access means the agent can act on segments - review what you enable.

What you needA Klaviyo account.

InstallConnectorMCP

​

Brevo

Email and SMS campaigns in Brevo

25Kestimated installs

What it isBrevo’s official hosted MCP: twenty-seven modules spanning email and SMS campaigns, contacts, and campaign analytics.

When to useBudget-friendly campaign email if Brevo is your platform. Note: Mailchimp has no equivalent here - its official MCP covers transactional email only, not campaigns.

What you needA Brevo account.

InstallMCP

​

SearchFit

Free all-in-one SEO plugin

20Kestimated installs

What it isA free Claude Code plugin bundling eleven auto-activating SEO skills and three agents: audits, technical SEO, schema markup, keyword clustering, content briefs, and AI-visibility checks.

When to useA one-install starting kit for SEO work in Claude Code. It overlaps the SEO portion of Marketing Skills - try one approach, not both at once.

InstallPlugin

​

Metricool

Scheduling plus social analytics

20Kestimated installs

What it isMetricool’s official MCP covering both halves of social work: scheduling and publishing across the major networks, plus the analytics Metricool is known for.

When to useWhen you want performance data and publishing through one connection - and it works on the free plan.

What you needA Metricool account; the free plan works.

InstallMCP

​

ActiveCampaign

Lifecycle automation in ActiveCampaign

20Kestimated installs

What it isActiveCampaign’s official remote MCP: contacts, lists, tags, custom fields, and automations, plus inspecting or sending campaigns with engagement analytics - no developer wiring needed.

When to useAutomation-heavy lifecycle marketing where ActiveCampaign is the system of record. It can create and send campaigns - keep write actions visible before approving them.

What you needAn ActiveCampaign account; the MCP URL is unique per account, copied from Settings > Developer, and corporate workspaces need admin approval.

InstallMCP

​

Hootsuite

Enterprise social management

20Kestimated installs

What it isHootsuite’s official MCP suite for its social management platform: publishing, scheduling, and account management across networks from the agent.

When to useTeams already on Hootsuite plans with approval workflows and many accounts. Overkill for a solo founder - Postiz or Buffer is the better start.

What you needA Hootsuite plan.

InstallMCP

​

Substack

Read-only Substack publication metrics

20Kestimated installs

What it isSubstack’s official MCP: subscriber, revenue, retention, traffic, and post analytics for your publication, without exports. Strictly read-only - it cannot publish, modify posts, or operate Notes.

When to useAnalyzing the newsletter business behind an eligible publication - growth, churn, and revenue questions in plain language.

What you needAdmin access to a Substack Bestseller publication - the route isn’t available to other publications.

InstallMCP

​

Google Search Console

by Amin Foroutan

Your own search performance data

15Kestimated installs

What it isAccess to your Search Console data - queries, clicks, impressions, positions, indexing - through the leading community-built server. Google publishes no official route for Search Console yet.

When to useFirst, before paying for anything: it’s your own site’s real query data, free. SEO skills like seo-audit get sharper when it’s connected.

What you needA Google account with Search Console access to your site. Community-built server.

InstallMCP

​

Typefully

Drafting and scheduling X threads

15Kestimated installs

What it isTypefully’s official MCP and skills: drafting, threading, and scheduling posts - strongest for X, with the cross-posting Typefully already supports.

When to useIf X threads are your main channel and you already write in Typefully. For many-network publishing, use a multi-network scheduler like Postiz or Buffer.

What you needA Typefully account.

InstallSkillMCP

​

MailerLite

Newsletter campaigns in MailerLite

15Kestimated installs

What it isMailerLite’s official hosted MCP: newsletter audiences, campaigns, automations, analytics, and content actions over a simple OAuth connection, with both read and write workflows.

When to useStraightforward newsletter and email marketing on MailerLite. It can send campaigns and change automations - review proposed actions before approving.

What you needA MailerLite account.

InstallMCP

​

Amazon Ads

Amazon Ads campaigns and reporting

15Kestimated installs

What it isAmazon Ads’ first-party MCP server, in open beta: campaign creation and updates, reporting, settings, billing, and finance operations - a rare first-party advertising route rather than a community wrapper.

When to useRunning or reporting on Amazon advertising as an eligible partner. It includes write-capable campaign, billing, and finance operations - review what the agent proposes before it acts.

What you needAn Amazon Ads partner account with active Ads API credentials; the route is in open beta and not generally available to every advertiser.

InstallMCP

​

Iterable

Iterable campaigns, safe by default

10Kestimated installs

What it isIterable’s official open-source MCP server, in beta: nearly the whole Iterable API mapped into a local server that runs read-only, no-PII, and no-sends by default, with explicit flags to enable more.

When to useCross-channel campaign work on Iterable by teams comfortable with a local setup. Elevated flags can schedule real sends - review those tool calls and test in a sandbox first.

What you needNode.js 20+ and an Iterable API key with your regional endpoint; run npx @iterable/mcp setup.

InstallMCP

​

Customer.io

Lifecycle messaging campaigns

10Kestimated installs

What it isCustomer.io’s official hosted MCP with OAuth: campaigns, broadcasts, and segments, readable and writable from the agent.

When to useSaaS lifecycle messaging where Customer.io runs your flows. Klaviyo is the ecommerce equivalent - pick the one matching your stack.

What you needA Customer.io account.

InstallConnectorMCP

​

Kit

Creator email and newsletters on Kit

10Kestimated installs

What it isKit’s official hosted MCP: more than sixty-five tools over subscribers, tags, segments, sequences, broadcasts, forms, purchases, and analytics, with guarded writes and confirmation prompts.

When to useWhen Kit is your newsletter or creator-email system of record - it’s unusually thorough about risk tags and confirmations for a write-capable route.

What you needA paid Kit Creator or Creator Pro plan - free accounts can connect and see the tools, but actions won’t execute.

InstallMCP

​

Postiz

Open-source posting to every network

9Kestimated installs

What it isAn open-source social scheduler with an official MCP and skill. One connection lets the agent draft, schedule, and publish across the major networks.

When to useThe default social publishing route if you don’t already pay for a scheduler - self-host it free or use Postiz Cloud. Per-platform direct routes barely exist; schedulers like this are how agents post.

What you needA Postiz Cloud account, or your own self-hosted instance.

InstallMCP

​

DataForSEO

Raw SERP and keyword data by API

6Kestimated installs

What it isDataForSEO’s official MCP server over its data APIs: live SERPs, keyword volumes, on-page audits, backlinks, and domain analytics - raw data rather than a polished tool UI.

When to useWhen you want search data without an Ahrefs or Semrush subscription, and you’re comfortable paying per call. The agent does the analysis; DataForSEO just supplies the numbers.

What you needA DataForSEO account; API calls bill per use.

InstallMCP

​

beehiiv

Read-only beehiiv publication data

6Kestimated installs

What it isbeehiiv’s official hosted MCP: read-only access to publication, subscriber, post, analytics, and account data in its current v1.

When to useAnalyzing and reporting on an existing beehiiv publication. It cannot draft or publish - beehiiv says read/write is planned for v2, which is announced only.

What you needA beehiiv account.

InstallMCP

​

Ayrshare

One social API across 13+ networks

5Kestimated installs

What it isAyrshare’s official Claude Code plugin and hosted action MCP: twenty-seven tools for publishing and managing social content across more than 13 networks through one API.

When to useWhen Ayrshare’s API is already your social distribution layer, or you’d rather post through one API than run a scheduler UI.

What you needAn Ayrshare account and API key. The plugin ships from Ayrshare’s own marketplace - it isn’t listed on claude.com/plugins.

InstallPluginMCP

​

Choose by use case

Need real search data instead of guessing?

→ Google Search Console - your own site’s query data, free; connect it first

→ Ahrefs or Semrush - make an existing subscription agent-native; pick the index your team already trusts

→ DataForSEO - raw SERP and keyword data by the call, no tool subscription

Doing SEO - audits, structure, programmatic pages?

→ Marketing Skills - choose the SEO, content strategy, programmatic SEO, and schema skills you need

→ SearchFit - a free one-install SEO kit that overlaps the above; try one, not both

Connect Search Console or Ahrefs so these work from real query data, not assumptions.

Writing copy and lifting conversion?

→ Marketing Skills - use its copywriting, CRO, experimentation, and marketing-psychology skills together

Want broad coverage from one install?

→ Anthropic Marketing - Anthropic’s bundle spanning planning, content, SEO audits, and email in one workflow set

A fine starting point; the specialist skills go deeper on each job it touches.

Publishing to social from the agent?

→ Postiz - open-source and self-hostable, widest network coverage

→ Buffer - the simplest hosted route, free tier included

→ Typefully when X threads are the main channel

→ Metricool and Hootsuite add analytics and team or enterprise management

→ Ayrshare - one API across 13+ networks, from its own marketplace

Direct per-platform posting routes barely exist - a scheduler is how agents publish.

Running email or lifecycle campaigns?

→ Klaviyo for ecommerce, Customer.io for SaaS lifecycle, Brevo on a budget

→ ActiveCampaign for automation-heavy accounts, MailerLite for straightforward newsletters

→ Kit for creator email - tools execute on paid Creator plans only

→ Iterable for technical teams - broadest API coverage, read-only by default

→ beehiiv and Substack connect newsletter analytics, read-only - they don’t send

Marketing Skills includes the email-writing skills whichever platform sends them.

Measuring or planning paid ads?

→ Google Ads - read-only campaign reporting on Google

→ Amazon Ads - campaigns and reporting for partner accounts with Ads API access; open beta

→ Marketing Skills - structure, creative, and A/B testing for any platform

​

Related categories