LinkedIn MCP server for engagement data, not for posting.

LinkedIn engagement data inside Claude and your code

Short answer. Cornersight's MCP server finds the people who like and comment on LinkedIn posts and turns them into scored leads, without your LinkedIn login or cookies. Use it from Claude, or get the same data in your own code with the REST API or CLI.

Three ways in

All three use the same account, the same credits and the same API key.

Connect Claude in 3 steps

1. Start a free trial and sign in to Cornersight.
2. In Claude, add a custom connector with the URL https://mcp.cornersight.io/mcp.
3. Sign in when asked, and pick your Cornersight team.

Prefer an API key? The team owner generates one in Cornersight, Settings, API key, and send it as a header. Treat the key like a password.

What you can ask your agent

• "Track the LinkedIn company page [URL]. When the first sync is done, show me who engaged with its recent posts."
• "Show me only the leads that match my ICP from my keyword search." (Set an ICP on the search first.)
• "Send my ICP leads from this source to my HeyReach campaign." (Connect HeyReach first.)
• "How many credits have I used this billing period, and on which source?"

Your agent calls the matching Cornersight tool, waits for the job to finish and returns the data. Before it spends credits or starts outreach, it asks you to confirm.

On the free trial, a tracked source can't be removed. Paste the exact LinkedIn URL.

What the MCP server can do

• Track sources: profiles, company pages, single posts and keyword searches.
• Read leads: list leads and engagers, scored against your ideal customer profile.
• Push leads on: to HeyReach, PlusVibe or your webhook.
• Check spend: credit balance and usage by source.
• Find people who post about a topic (Discover Influencers).

Your MCP client shows the full, current tool list when you connect.

Built for automation

• Webhooks: paste your URL into a source's webhook setting and each new lead arrives as a lead.detected event, signed so you can check it came from Cornersight. Good for n8n and Clay.
• Jobs: long tasks return a job ID. Check its status until it is done, or use the CLI, which waits for you.
• Clear errors: every error is JSON with a code you can branch on.
• Rate limits: 120 reads and 60 writes a minute per team. Posts reads have a lower limit. Every API response tells you how many calls you have left.

What it costs

• The same credits as the app. Plans from $99 a month (15,000 credits) to $599 a month (120,000 credits). Monthly billing.
• One credit per new person captured from a source. The same person engaging again on the same source is free.
• Fetching a profile's or company's posts directly costs 1 credit per post returned, and you confirm the spend first.
• You can set a credit limit on each source, and check spend at any time with the credits tools.

Need emails?

We don't sell emails. Connect your own email finder (for example LeadMagic) and Cornersight finds emails for your ICP leads with your own credits.

FAQ

Is there an MCP server for LinkedIn engagement data?

Yes. Cornersight's MCP server is at mcp.cornersight.io/mcp. It works with Claude.

Do I need a LinkedIn account?

No. Cornersight works without a LinkedIn account.

Do the MCP server and API cost extra?

No. They use the same credits as the app.

Can I use it from n8n or Clay?

Yes. Call the REST API, or send each new lead to a webhook URL.

What's in the free trial?

7 days, no card needed. 2 tracked profiles, 2 tracked posts and 2 keyword searches, at up to 250 leads each. The API, MCP server and CLI work during the trial.