For developers

Give AI agents real access to your CRM.

Kantos runs an MCP server with 90+ tools and a REST API, so Claude, other agents and your own code can query, create and manage CRM data. Both are on Professional and Business, and in the 14-day trial.

New to this? Start with the overview of Kantos for AI agents.

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The building blocks

What's included.

  • MCP server (90+ tools)

    A hosted Model Context Protocol server lets Claude and other agents query, create, update and manage your CRM in natural language, with no integration code.

  • OAuth 2.1 and API keys

    Agents authorise with OAuth 2.1 and PKCE. API keys go in an x-api-key or Bearer header, are stored hashed, and are rate-limited and logged per key.

  • REST API

    Objects, fields, statuses, records, automations and media: the same building blocks the Kantos app is built on.

  • Webhooks

    Automations call your endpoints when records change, and retry when a call fails. Send data the other way with the API.

Quick start

Start in a minute.

Connect an MCP client

# Claude Code
claude mcp add --transport http kantos https://kantos.ai/api/mcp/v1 --scope user
claude mcp login kantos

# Claude Desktop, Cursor, Copilot and other clients:
# add this to the MCP config, then sign in from the client's MCP panel
{
  "mcpServers": {
    "kantos": { "url": "https://kantos.ai/api/mcp/v1" }
  }
}

Call the REST API

# Find leads
curl -X POST https://kantos.ai/api/crm/records/query \
  -H "x-api-key: $KANTOS_API_KEY" \
  -H "Content-Type: application/json" \
  -d '{ "object_type": "lead", "limit": 10 }'

# Add a lead
curl -X POST https://kantos.ai/api/crm/record \
  -H "x-api-key: $KANTOS_API_KEY" \
  -H "Content-Type: application/json" \
  -d '{ "object_type": "lead", "data": { "name": "Acme Ltd", "email": "hi@acme.com" } }'

The API reference has every endpoint, authentication, rate limits and the full list of MCP tools.

Ideas

What you can build.

  • Let an AI agent sort inbound leads, fill in details and update statuses from a chat.
  • Sync records with your warehouse, billing system or product database over the REST API.
  • Send record changes to Zapier, Make or n8n with automation webhooks.
  • Build your own screens on the same objects, fields and records the Kantos app uses.

Build on Kantos

Ship your first integration today.

Start a trial, create an API key, and connect an MCP client in minutes.

Start 14-day free trialRead the docs