Certainly
Free tierAI Agents for Customer Experience — automate support, sales, and engagement at scale
Free tier available·All audiences·Powered by OpenAI·API available
Key strengths
No-code AI agent builder for customer experienceOmnichannel support across chat, email, and messaging platformsNative e-commerce and CRM integrationsMultilingual AI conversations out of the boxSeamless human handoff for complex queries
Free tier + paid plans
Copenhagen, Denmark
Founded 2017
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Technical Setup & API Usage
Installation & Embedding
Add the Certainly chat widget to your site with a simple JavaScript snippet provided in your dashboard:
<script src="https://cdn.certainly.io/widget.js" data-bot-id="YOUR_BOT_ID" async></script>
REST API
Certainly exposes a REST API for managing bots, conversations, and analytics programmatically.
Base URL: https://api.certainly.io/v1
Authentication: Use API key via Authorization: Bearer <API_KEY> header.
Key Endpoints:
GET /bots— List all configured AI agentsPOST /conversations— Initiate a new conversation sessionGET /conversations/{id}/messages— Retrieve conversation transcriptPOST /webhooks— Register a webhook for real-time conversation events
Webhooks
Register webhooks to receive real-time events such as conversation.started, message.received, and handoff.triggered. Payload is delivered as JSON to your specified endpoint.
Key Parameters
bot_id— Unique identifier for your AI agent instancesession_id— Tracks individual user conversation sessionslanguage— ISO 639-1 language code for multilingual routingchannel— Deployment channel (web,email,sms,messenger)