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SimilarWeb

SimilarWeb MCP Server

Yes. SimilarWeb has an official MCP server, hosted at similarweb.com/corp/ai/mcp.

OFFICIAL MCP✓ alivePublic API
Open MCP pageTry SimilarWeb
MCP status verified 2026-06-07Agent-readiness 7/10
Data from Buddy's database, auto-rechecked weekly

What is the SimilarWeb MCP server?

SimilarWeb runs an official MCP server (documented at similarweb.com/corp/ai/mcp), so an agent can pull its traffic and market-intelligence data directly instead of through custom API glue. It connects to Claude (Desktop and Web), Cursor, Microsoft Copilot, and automation tools like Zapier and n8n.

The server exposes around 18 tools across three data families: roughly 13 web-metrics tools (traffic, engagement, sources, geography, referrals), 2 search tools, and 3 app-intelligence tools. In practice an agent can ask for a competitor's traffic, top channels or app rankings and get structured data back.

The honest caveat is access. The MCP is not free: it requires a SimilarWeb subscription with API access plus an API key, and every call draws down the same data credits as the REST API. So it is a genuine, well-scoped official MCP, but a paid and metered one, and it is read-only market data rather than a way to take actions.

For the rest of the picture see the SimilarWeb review, full pricing breakdown, .

Inside Claude / Cursor / Codex

What you can build with the SimilarWeb MCP

Illustrative workflow examples. Exact tool names, parameters, and outputs come from SimilarWeb's MCP server schema — check the docs for the live surface.

similarweb-mcplive
>Show me my top 10 keywords by traffic this month
●similarweb.get_top_keywords({ limit: 10 })
TOP 5 KEYWORDS · LAST 30 DAYS
marketing automation12,400 visits
email marketing software8,920 visits
seo tools 20266,310 visits
best crm small business4,580 visits
mcp marketing tools2,140 visits
Scale to top 50? Just ask.
similarweb-mcplive
>Which competitors rank for keywords I'm losing positions on?
●similarweb.compare_competitor_overlap()
LOSING POSITIONS · 3 KEYWORDS
marketing automation tools→ rival.com (#3)
best email marketing 2026→ competitor.io (#1)
ai marketing assistant→ newentrant.ai (#5)
Want a full SERP gap report?
similarweb-mcplive
>Audit my newest blog post and flag low-effort SEO fixes
●similarweb.audit_url({ url: "mysite.com/post" })
QUICK WINS · 3 FOUND
Missing meta descriptionfix in 30s
H1 doesn't match target keywordfix in 1m
No internal links to top pagesfix in 2m
TMB SCORE FOR SimilarWebMCP: OfficialAgent fit: 7/10
Read review →

Which AI clients can use SimilarWeb MCP?

Not every AI assistant supports MCP natively. Per-client picture for SimilarWeb:

ClientSupportNotes
Claude (Desktop/Web)Native MCPConnect the official SimilarWeb MCP server; requires a subscription with API access and an API key.
CursorNative MCPDocumented as a supported client for the official MCP server.
n8nVia connectorsWorks through automation connectors (also Zapier); calls consume data credits.

How to connect SimilarWeb MCP to Claude Desktop

Add this block to ~/Library/Application Support/Claude/claude_desktop_config.json (macOS) or %APPDATA%\Claude\claude_desktop_config.json (Windows), then restart Claude Desktop. Cursor and Codex use a similar schema.

{
  "mcpServers": {
    "similarweb": {
      "command": "npx",
      "args": ["mcp-remote", "<YOUR_MCP_URL>"]
    }
  }
}
// HTTP-transport MCP. Get your <YOUR_MCP_URL> from the vendor dashboard.
// Server source: https://www.similarweb.com/corp/ai/mcp/
// Claude Code (one-liner): claude mcp add similarweb <YOUR_MCP_URL> --transport http

Some MCP servers require an API key. Check the source page for setup: similarweb.com/corp/ai/mcp.

Does SimilarWeb MCP cost extra?

Included with subscription

SimilarWeb ships an official MCP server that uses your existing subscription credentials.

  • No separate MCP licence to buy. You pay for your SimilarWeb plan, the MCP server queries that account.
  • Whether it's gated to a specific tier wasn't extracted automatically — verify the access requirements on the MCP page or pricing docs.

SimilarWeb also publishes a REST API

SimilarWeb publishes an API, but per-tier gating wasn't extracted automatically.

Auth method
—
SDK languages
—
OpenAPI spec
—
Webhooks
—
Structured outputs
—
See SimilarWeb API page

What you can do with SimilarWeb from an AI agent

Three shapes of agent workflow. Pick the row that matches how you actually use Claude / Cursor / Codex day to day.

INDIE / SOLO

Skip the dashboard, ask Claude

  • "What keywords moved this week?" answered in seconds
  • Quick one-off questions without leaving the editor
  • Pipe SimilarWeb data into your personal notes / docs without writing a script
Effort: 30 seconds — paste the config, restart Claude
AGENCY

Run client analysis at agent speed

  • Hand the MCP server to your team — every consultant can ask Claude about any client's SimilarWeb account
  • Multi-account workflows without context-switching the SimilarWeb UI
  • Reports you'd normally spend hours on, done before standup
Effort: An afternoon — set up auth per client
IN-HOUSE TEAM

Production agent workflows

  • Embed in your internal Codex / Cursor agents that triage SimilarWeb data daily
  • Combine with other MCP servers in a multi-step agent chain
  • Constrain agents to read-only roles to keep production SimilarWeb safe
Effort: Days — security review + role config

Limits and gotchas

  • Official MCP server — published by SimilarWeb themselves, so it should track product changes.
  • Fallback: the REST API works for any flow the MCP server doesn't cover.
  • Rate limits: MCP calls count against your underlying SimilarWeb API quota. Burst usage from a curious agent can drain a daily allowance fast.
7/10

Agent-readiness verdict

A real, official MCP server with broad client support (Claude, Cursor, Microsoft Copilot, Zapier, n8n) covering traffic, search and app intelligence. It earns a 7 out of 10: the implementation is legitimate and useful, held back only by being gated behind a paid subscription, metered by data credits, and read-only rather than action-capable.

Partial agent-fit with official MCP support. SimilarWeb offers an official MCP server and documented public API, giving it a foundation for agent workflows, but lacks OpenAPI specs, SDKs, and structured outputs that would make integration seamless. The missing webhook and native LLM integrations mean you'll need custom parsing logic to extract and act on competitive intelligence data.

MCP server availableOfficial MCP (on tool's own domain)Public API with docs

Scored 2026-06-07 by Joonas (TMB).

SimilarWeb MCP & API FAQ

Is the SimilarWeb MCP server official?+
Yes — published on SimilarWeb's own domain at https://www.similarweb.com/corp/ai/mcp/.
Can I use the SimilarWeb MCP with Cursor or Codex?+
Yes — MCP is a protocol, not Claude-specific. Any MCP-capable client (Cursor, Codex, Windsurf, Zed) can use the same server config with minor path adjustments.
Does SimilarWeb have a public API?+
Yes — public REST API at developers.similarweb.com.

Sources

Data verified by Joonas on the dates shown. MCP server status auto-rechecked weekly.

Joonas Rotko
Joonas RotkoAuthor & Founder of That Marketing Buddy

10+ years in digital marketing. I review marketing software for AI-stack fit: real pricing, MCP and API support, and how cleanly each tool drops into an AI agent workflow, cross-checked against verified data and real user feedback.

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