Build on HAL. Or let your AI agent do it.

A REST API, signed webhooks, a JavaScript API in the widget and a hosted MCP server with about 140 tools. Wire HAL into your product — or hand it to Claude, Cursor or your own agent.

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API, MCP and webhooks from Starter

~140MCP tools across inbox, CRM, email and more

17signed webhook event types

REST v1with API keys

OAuthfor third-party apps

MCP: HAL as a tool for AI agents.

Connect the hosted MCP endpoint to Claude, Cursor or any MCP client. Agents can read and answer conversations, update the CRM, write articles, build workflows and broadcasts, and import history from other tools.

One key per account, hosted over HTTP
Conversations, CRM, articles, tours, workflows and email
Silent conversation import for migrations

mcp.jsonMCP

{
  "mcpServers": {
    "hal": {
      "type": "http",
      "url": "https://api.chatwithhal.com/mcp",
      "headers": { "X-API-Key": "YOUR_MCP_KEY" }
    }
  }
}

APIs for everything else.

Use the REST API to manage contacts and conversations, push events from your server and get webhooks when things change. The incoming message API turns your own forms into conversations.

REST API v1 with API keys
Webhooks for conversations, contacts, companies, CSAT and more
Incoming message API for lead forms

terminalREST API v1

# Record a product event from your server
curl -X POST \
  https://api.chatwithhal.com/api/v1/events/track \
  -H "X-API-Key: $HAL_API_KEY" \
  -d '{"email":"mia@novaleaf.com",
       "name":"project_limit_reached"}'

Everything included

Plays well with your stack.

Slack

Conversations with AI summaries, plus detractor alerts.

X (Twitter)

Bring mentions in and publish from Work.

Identity verification

HMAC-signed identify, so users cannot be impersonated.

OAuth provider

Let third-party apps connect to HAL securely.

Install guides

Shopify, Webflow and WordPress — plus a WordPress plugin.

Data export

Conversations and account data as CSV or JSON.

Better together

Put HAL on your site today.

Install the widget in five minutes, point HAL at your help content, and let the AI take the first pass at every question.

Start free See pricing

Free plan · No credit card · Hosted in the EU