SimilarWeb MCP server: setup, pricing & agent-readiness

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": ["-y", "<server-package-name>"],
      "env": {
        "SIMILARWEB_API_KEY": "your-api-key-here"
      }
    }
  }
}
// Server source: https://www.similarweb.com/corp/ai/mcp/
// Check the server's README for the exact "command" and required env vars.

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.

API docs

—

Auth method

—

SDK languages

—

OpenAPI spec

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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.

4/10

Agent-readiness verdict

Limited agent potential despite official MCP. SimilarWeb offers an official MCP server, but lacks documented APIs, SDKs, and structured outputs that agents need for reliable integration. Without public API documentation or OpenAPI specs, workflows will struggle with consistent data retrieval and error handling.

MCP server availableOfficial MCP (on tool's own domain)

Scored 2026-05-19 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.

Sources

SimilarWeb official site: https://www.similarweb.com/
MCP server page: https://www.similarweb.com/corp/ai/mcp/
Pricing source: https://www.similarweb.com/corp/pricing/ (scraped 2026-05-19)

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

SimilarWeb MCP Server

What is the SimilarWeb MCP server?

What you actually do with the SimilarWeb MCP