Product analytics, without the dashboard.

Tellvane is an MCP server for your product's events. Connect it to Claude Code, Codex or Cursor and ask about your users in plain words. Answers come back with real numbers, in the editor you already have open. Setting it up is one prompt.

Your agent sets up its keys, the MCP server, tracking and a test event. You approve one link and read one code back; the link signs you up if you're new.

Then ask

Your agent

how many people signed up this week, and how many came back?

tellvane · events_count signup · last 7 days 412
tellvane · events_retention signup → any event · 3 days 38.1%

412 people signed up this week, 18% more than last week. 157 of them (38%) came back within three days. Tuesday was the peak, the day the launch post went out.

Every number comes from a query against your events. When Tellvane doesn't have the data, it says so instead of guessing.

Or set it up by hand

Connect your agent

It queries your events with an agent key, which can read them but never send them.

Get a key for Claude Code Already have one? Replace tvl_your_key below.

Run in your terminal.

claude mcp add --transport http tellvane https://api.tellvane.com/mcp \  --header "Authorization: Bearer tvl_your_key"

Restart Claude Code after saving the setup so the Tellvane tools load.

Send events

One request per event, with an ingest key: it can send events but never read them. Or ask your agent to add the tracking: Tellvane hands it an instrumentation guide for your stack.

Run in your terminal to send a test event.

curl https://api.tellvane.com/v1/events \  -H "Authorization: Bearer tvl_your_key" \  -H "Content-Type: application/json" \  -d '{    "event": "signup",    "user_id": "usr_001",    "properties": { "plan": "free" }  }'