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Optimly API Documentation

Connect your applications to Optimly's AI agents with our simple REST API. Include your API key in the Authorization header of every request:

# Example with curl
curl -X POST https://api.optimly.io/external/agent/v3 \
  -H "Authorization: Bearer YOUR_AGENT_API_KEY" \
  -H "Content-Type: application/json" \
  -d '{"chat_id": "abc123", "content": "Hello!"}'
// Example with JavaScript
const response = await fetch('https://api.optimly.io/external/agent/v3', {
  method: 'POST',
  headers: {
    'Authorization': 'Bearer YOUR_AGENT_API_KEY',
    'Content-Type': 'application/json'
  },
  body: JSON.stringify({
    chat_id: 'abc123',
    content: 'Hello!'
  })
});
Endpoint selection
  • Use /external/agent/v3 by default for the fastest LangChain-powered responses and optimized tool execution paths.
  • Keep /external/agent/v2 when you need continuity with OpenAI Agents-style payloads or have not migrated downstream tooling yet.
  • Fallback to /external/agent (legacy) only when supporting historical webhooks that pre-date tool orchestration.

Security Best Practices​

✅ Do: Store API keys as environment variables
✅ Do: Use HTTPS for all API calls
✅ Do: Regenerate keys if compromised
✅ Do: Implement proper error handling

❌ Don't: Expose API keys in frontend code
❌ Don't: Commit API keys to version control
❌ Don't: Share API keys between different applications

Next Steps​

Ready to start building? Choose your path:

🚀 Quick Start​

Try the API in 5 minutes →
Get up and running with basic message sending

📖 Full Documentation​

Browse all endpoints →
Complete API reference with examples

💡 Integration Examples​

See real-world code →
Ready-to-use code for common scenarios

🆘 Need Help?​

Contact support →
Our team is here to help with your integration# Perfect for Developers Who Want To:

  • Integrate AI chat into existing applications
  • Build custom user interfaces for agent interactions
  • Automate lead capture from any source
  • Connect appointment booking to external calendars
  • Create multi-channel experiences across web, mobile, and messaging platforms

What Makes Our API Different?​

🎯 Agent-Centric Design​

Each API key is tied to a specific agent with its own knowledge, personality, and capabilities. No complex setup - just grab your key and start sending messages.

🚀 Simple Integration​

Most integrations require just two endpoints: create a conversation and send messages. The agent handles all the AI complexity behind the scenes.

🛠️ Built-in Tools​

Your agents come with ready-made tools for lead capture, appointment scheduling, and email handoff. No need to build these features yourself.

✅ What's new? These automations now live under the /external/message/* namespace. The Conversation Automations guide shows how to post leads, booking requests, and email handoffs alongside the rest of your chat traffic.

📱 Works Everywhere​

Use the same API for websites, mobile apps, chatbots, voice assistants, or any platform that can make HTTP requests.

Start Building in Minutes​

1. Get Your API Key (30 seconds)​

# Each agent has its own API key - find it in your dashboard
curl -H "Authorization: Bearer YOUR_API_KEY" \
     https://api.optimly.io/health

2. Send Your First Message (2 minutes)​

// Start a conversation
const chat = await fetch('https://api.optimly.io/external/message/new-chat', {
  method: 'POST',
  headers: {
    'Authorization': 'Bearer YOUR_API_KEY',
    'Content-Type': 'application/json'
  },
  body: JSON.stringify({ client_id: 'user_123' })
});

const { chat_id } = await chat.json();

// Send a message with the optimized LangChain flow
const response = await fetch('https://api.optimly.io/external/agent/v3', {
  method: 'POST',
  headers: {
    'Authorization': 'Bearer YOUR_API_KEY',
    'Content-Type': 'application/json'
  },
  body: JSON.stringify({
    chat_id: chat_id,
    content: 'Hello! Can you help me with pricing?'
  })
});

const { response: agentReply } = await response.json();
console.log(agentReply); // Your agent's intelligent response

3. Deploy Your Integration (5 minutes)​

Add the code to your app and start getting AI-powered customer interactions immediately.

Real-World Use Cases​

💬 Customer Support Chat​

Replace static contact forms with intelligent conversation:

// User asks a question
const response = await fetch('https://api.optimly.io/external/agent/v3', {
  method: 'POST',
  headers: {
    'Authorization': 'Bearer YOUR_API_KEY',
    'Content-Type': 'application/json'
  },
  body: JSON.stringify({
    chat_id: chatId,
    content: userQuestion,
    metadata: { source: 'web_widget' }
  })
});
const data = await response.json();

🎯 Lead Qualification​

Automatically qualify and capture leads with /external/message/new-message:

await fetch('https://api.optimly.io/external/message/new-message', {
  method: 'POST',
  headers: {
    'Authorization': 'Bearer YOUR_API_KEY',
    'Content-Type': 'application/json'
  },
  body: JSON.stringify({
    chat_id: chatId,
    sender: 'assistant',
    content: 'Lead captured for John Doe <john@company.com> interested in 50 seats',
    metadata: {
      form_type: 'lead_capture',
      lead_collected: true
    }
  })
});

📅 Appointment Booking​

Let customers schedule meetings by streaming the booking details through the message APIs:

await fetch('https://api.optimly.io/external/message/new-message', {
  method: 'POST',
  headers: {
    'Authorization': 'Bearer YOUR_API_KEY',
    'Content-Type': 'application/json'
  },
  body: JSON.stringify({
    chat_id: chatId,
    sender: 'user',
    content: 'Book a 30 minute demo on 2025-06-20 at 14:00 for Jane Smith <jane@company.com>',
    metadata: {
      form_type: 'appointment_request',
      duration_minutes: 30
    }
  })
});

API Access & Pricing​

The Optimly API is available on all paid plans:

  • Starter: 1,000 API calls/month
  • Growth: 10,000 API calls/month
  • Scale: 100,000 API calls/month
  • Enterprise: Unlimited API calls

View complete pricing →

Your API Key​

Each agent gets its own unique API key - this keeps your integrations secure and organized.

How to Find It​

  1. Go to your Agents dashboard
  2. Click on the agent you want to integrate
  3. Open the Configuration tab
  4. Copy the API Key from the integration section

💡 Pro tip: You can regenerate your API key anytime if it gets compromised.

API Token Location

Authentication & Security​

Making Authenticated Requests​

Once you have the key, you can authenticate your API requests by including it in the Authorization header:

Authorization: Bearer YOUR_AGENT_API_KEY

Security Note​

  • Treat your API key like a password. Anyone with this key can send messages on behalf of your agent.
  • Never share it publicly or embed it in frontend code.
  • You can regenerate the key if it’s ever compromised.