Claude MCP Integration

Similarweb is available as an official connector in Claude's Connectors Directory — a curated collection of direct integrations that extend Claude's capabilities with real-world data and tools.

Once connected, Claude can access Similarweb's digital intelligence data directly within your conversations. Ask questions in plain language and get answers backed by real traffic, audience, keyword, and app data — no switching tabs, no exports, no manual lookups. The connector handles everything behind the scenes; all you do is authenticate once and start asking.

With Similarweb connected, Claude draws on a panel of 210 million users and 75+ data endpoints covering web analytics, competitive intelligence, audience demographics, app performance, keyword rankings, and more.

Who Has Access

The Similarweb connector for Claude is available to clients with API access as part of their subscription. This includes:

Business and Enterprise plan subscribers — API access is included as part of your plan.
API standalone package subscribers — full connector access is included.

Data access through the connector mirrors your existing Similarweb subscription. Access is scoped to the specific datasets, regions, and historical ranges included in your plan.

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Interested in getting access?
Contact Similarweb Sales to learn more about plan options and available datasets.

How to Connect

Step 1: Find the Similarweb connector

Open Claude.ai in your browser or launch the Claude desktop app.
Click the + button in the lower-left corner of the chat interface, or go to Settings > Connectors.
Click Browse connectors and search for Similarweb.
Click the Similarweb connector card to open the setup.

Step 2: Authenticate with your API key

When prompted, enter your Similarweb API key in the authentication field.
Click Connect to complete setup. The connector status will update to Active.

Where to find your API key: Log in to the Similarweb platform and navigate to User Settings > API Access to copy your key. If you don't see an API key, your plan may not include API access — contact your account manager.

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Security note
Keep your API key confidential. If a key is compromised, regenerate it from User Settings > API Access in the Similarweb platform, then reconnect the connector with the new key.

Step 3: Enable the connector in your chat

Open a new chat in Claude.
Click the + button in the lower-left corner and select Connectors.
Toggle on Similarweb to activate it for this conversation.
Type your first data question — Claude will query Similarweb directly.

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Note
The connector must be toggled on per conversation. If you start a new chat, re-enable Similarweb before querying data.

Example Queries

The Similarweb connector covers 75+ data endpoints. Below are representative examples across the main dataset categories.

Website Traffic & Engagement

"What was Netflix's global web traffic from October to December 2024? Show visits, unique visitors, and average session duration."

Returns monthly visit volume, bounce rate, session duration, and unique visitor trends — useful for tracking growth, seasonal patterns, or benchmark comparisons.

Traffic Sources & Channel Mix

"Show me Spotify's desktop traffic channel breakdown for November 2024. Which channel drives the highest engagement?"

Returns a breakdown of direct, organic search, paid search, social, referral, email, and display traffic — including engagement metrics per channel.

Audience Demographics

"What's the age and gender breakdown of Amazon's global web audience in December 2024?"

Returns age group share (18-24 through 65+) and gender split — useful for ICP validation, media planning, and audience benchmarking.

Keyword & SEO Competitive Analysis

"Who are HubSpot's top organic search competitors? What's the keyword overlap score between them?"

Returns competitor domains ranked by competitiveness score and keyword overlap percentage.

Mobile App Intelligence

"How many monthly active users does the Spotify Android app have in the US? Show the trend from October to December 2024."

Returns monthly active user counts for Google Play and Apple App Store apps, with historical trending.

E-Commerce & Amazon Shopper Intelligence

"Compare Adidas and Nike's click share in the Athletic Shoes category on Amazon.com over the last three months."

Returns brand-level click share, top products, and keyword rankings across Amazon storefronts.

FAQ

My API key is correct but the connector won't authenticate. What should I check?

Check for extra spaces or line breaks in the pasted key. Confirm your subscription includes API access. If the key was recently generated, wait a few minutes before retrying. Contact Similarweb support if the issue persists.

Can I use the same API key for the REST API and the connector?

Yes — the connector uses the same API key as the Similarweb REST API. No separate key is required.

I have a Similarweb subscription but don't see an API key. Why?

API access is included with Business and Enterprise plans and the API standalone package. Starter and Professional plans without API add-ons may not include it. Contact your account manager to discuss upgrading.

What data is available through the connector?

The connector provides access to 75+ endpoints including web traffic and engagement, traffic sources, audience demographics, keyword and SEO data, competitive analysis, referral data, mobile app metrics, and Amazon shopper intelligence. Available data is governed by your subscription.

Why is there no data for a domain I queried?

Similarweb coverage depends on traffic volume — low-traffic or niche sites may have limited data. If a query returns no results, try broadening the date range or switching the country filter to worldwide (ww).

How do data credits work for connector queries?

Connector queries consume data credits from your API allocation, using the same credit structure as the Similarweb REST API. Credit consumption depends on the volume of data returned — broader date ranges, finer granularity (daily vs. monthly), and more metrics per query consume more credits. Monitor usage under User Settings > API Access > Usage in the Similarweb platform.

What happens if I run out of API credits?

Queries will return an error once your allocation is exhausted for the billing period. Contact your account manager to increase your credit limit or upgrade your plan.

The connector is active but Claude isn't returning Similarweb data.

Confirm the Similarweb connector is toggled on in the current conversation — it needs to be enabled per chat. If it's on and still not working, disconnect and reconnect via Settings > Connectors, re-enter your API key, and try again.