# SimilarWeb Traffic — MCP server on mcp.ai
> Estimate any website's traffic: an approximate monthly-visits chart for the last few months, trend, global and country rankings, engagement, traffic sources, keywords and competitors. Query several domains in one call. Hosted by the platform, no credentials.

By: mcp.ai · official
Page: https://mcp.ai/similarweb

## Connect (MCP protocol)
Remote MCP endpoint (HTTP, streamable): https://api.mcp.ai/p_similarweb?ms=1788385200000
Add it as a custom/remote MCP connector, then authenticate when prompted.

## REST API (no MCP client required)
Every tool is also a REST endpoint, authed with a workspace API key.
Discover: GET https://api.mcp.ai/api/similarweb/_endpoints   # public; lists every endpoint
Call:     POST https://api.mcp.ai/api/similarweb/<endpoint>
  Authorization: Bearer sk_live_…   # create one at https://mcp.ai/settings/api-keys
  Content-Type: application/json
  Body: { …args }   →   { "ok": true, "tool": "<id>", "result": { … } }

## Developer docs
How to use (MCP or REST), markdown: https://mcp.ai/similarweb/skill.md
Postman collection (v2.1): https://mcp.ai/similarweb/postman.json

## Tools
- similarweb_traffic(domains: string[]) — Tráfego web ESTIMADO de domínios (dados do SimilarWeb via crawler). Retorna o gráfico aproximado de VISITAS MENSAIS dos últimos ~3 meses (`estimated_monthly_visits`), média e tendência, além de rankin

## Example prompts
- "What's the estimated traffic of stripe.com over the last months?"
- "Compare the monthly visits of notion.so and coda.io"
- "Where does openai.com's traffic come from and what are its top keywords?"

## Links
Docs: https://mcp.ai/docs/mcps/similarweb
Website: https://mcp.ai/mcps/similarweb