Kenso API
The Kenso API is the API the Kenso app runs on. Build and launch campaigns, manage contacts, read and answer replies, connect inboxes and domains, search people and companies, and get events as webhooks. Every public endpoint is below, with a curl request and an example response.
Quick start
In the Kenso app, open Settings > Integrations > API Keys and create a key. It is shown once.
export KEN_API_KEY=<your key> so the examples on these pages run as they are.
List the workspaces your key can reach. Send one of their ids as X-Ken-Workspace-Id on the calls that act in a workspace.
curl -X GET "https://api.ken.so/v1/workspaces" \ -H "Authorization: Bearer $KEN_API_KEY" \ -H "Ken-Version: 2026-11-02"
{
"success": true,
"data": [
{
"id": 812,
"name": "Northwind Outbound",
"isActive": true,
"logoUrl": "https://cdn.example.com/workspaces/812/icon.png",
"isDemo": false
}
],
"pagination": {
"nextCursor": "eyJpZCI6ODE1fQ",
"hasMore": true,
"total": 1,
"isTotalCapped": true
}
}Guides
Read these once before you build.API reference
Every public endpoint, grouped by what it works on.Campaigns and sequences
Create, launch and pause campaigns, write their email and LinkedIn sequences, segment the audience and read the results.
Contacts and lists
Import, export and update contacts and companies, tag them and keep blocklists.
Inbox
Read and answer reply threads, keep drafts and attachments, reuse reply templates and set how Ken answers on its own.
Deliverability
Connect sending inboxes and LinkedIn accounts, manage domains and check their health.
Search and data
Search people and companies, funding rounds and job postings, save searches, send signals and scrape the web.
CRM
Connect a CRM, map its fields and keep records in sync.
Webhooks and events
Get events pushed to your endpoints, poll the event feed, send leads in through inbound webhooks and run triggers.
Meetings and calling
Meeting types, booking links, bookings and the built-in dialer.
AI
Run AI over a campaign's contacts, manage prompts and their versions and grade email or LinkedIn copy.
Workspace and credits
The caller, your workspaces and their brand, and your credit balance, ledger, rates and spend.
More endpoints
Endpoints not grouped yet.