API Publishing and Embedding

This guide explains how to publish prompts as APIs, generate API keys, embed chatbots in external applications, and integrate PromptOwl  with your systems.

Table of Contents

1. Publishing Overview
2. Making a Prompt Live
3. Generating API Keys
4. Using the API
5. Embedding Chatbots
6. Customizing Embedded Chat
7. Variables and Parameters
8. Streaming Responses
9. Conversation Management
10. Security Considerations
11. Best Practices
12. Troubleshooting

Publishing Overview

PromptOwl allows you to expose your prompts as APIs for external applications.

What You Can Do

Integration Options

Making a Prompt Live

Before a prompt can be accessed via API, it must be set to “Live” status.

Publishing a Prompt

1. Open your prompt
2. Navigate to Publish tab
3. Toggle status to Live
4. Prompt is now accessible via API

Live vs Draft Status

Checking Publish Status

• Live prompts show green indicator
• Draft prompts show gray indicator
• Status visible on prompt card and publish page

Note: Non-live prompts return error 400 when called via API.

Generating API Keys

API keys authenticate external requests to your prompts.

Creating an API Key

1. Open your prompt
2. Go to Publish tab
3. Find API Key section
4. Click Generate API Key
5. Copy the key immediately

API Key Format

po_[64-character-hexadecimal-string]

Example:

po_a1b2c3d4e5f6...

Important: Save Your Key

Regenerating Keys

If you lose or need to rotate your key:

1. Go to Publish tab
2. Click Regenerate API Key
3. Old key immediately invalidated
4. New key generated
5. Update all integrations

Key Properties

Using the API

Endpoint

POST https://your-domain.com/api/prompt/{promptId}

Authentication

Include API key in header:

X-API-Key: po_your-api-key-here

Basic Request

curl -X POST https://promptowl.ai/api/prompt/YOUR_PROMPT_ID \
  -H "Content-Type: application/json" \
  -H "X-API-Key: po_your-api-key" \
  -d '{
    "sessionId": "user-123",
    "message": "Hello, how can you help me?"
  }'

Request Body

Response Format

{
  "id": "conv_abc123",
  "conversationId": "conv_abc123",
  "messages": [
    {
      "role": "system",
      "content": "You are a helpful assistant..."
    },
    {
      "role": "user",
      "content": "Hello, how can you help me?"
    },
    {
      "role": "assistant",
      "content": "Hello! I'm here to help you with..."
    }
  ],
  "totalTokenUsed": 150,
  "citations": [],
  "previousMessages": []
}

Response Fields

Embedding Chatbots

Embed a chat widget directly in any website.

Getting Embed Code

1. Open your prompt
2. Go to Publish tab
3. Find Chatbot Embed Generator
4. Copy the embed code

iFrame Embed

<iframe
  width="480px"
  height="860px"
  src="https://promptowl.ai/chatPopup/SESSION_ID/PROMPT_ID"
  style="border: none;">
</iframe>

JavaScript Embed

<script>
  window.PromptOwlConfig = {
    promptId: "YOUR_PROMPT_ID",
    sessionId: "user-" + Date.now(),
    position: "bottom-right"
  };
</script>
<script src="https://promptowl.ai/embed.js"></script>

Embed Parameters

Customizing Embedded Chat

Color Customization

Configure chat appearance in the publish interface:

Branding Options

Size Recommendations

Variables and Parameters

Pass dynamic values to your prompts at runtime.

Using Variables

Include variables in your API request:

{
  "sessionId": "user-123",
  "message": "What's my account status?",
  "variables": {
    "user_name": "John Smith",
    "account_id": "ACC-12345",
    "subscription": "Premium"
  }
}

Variable Syntax

In your prompt, reference variables with:

Hello `{user_name}`, your account `{account_id}` is on the `{subscription}` plan.

Overriding LLM Settings

Change model settings per request:

{
  "sessionId": "user-123",
  "message": "Write a creative story",
  "llmType": "openai",
  "llmSettings": {
    "model": "gpt-4",
    "temperature": 1.2,
    "max_tokens": 2000
  }
}

Available LLM Settings

Streaming Responses

Get real-time token-by-token responses.

Enabling Streaming

{
  "sessionId": "user-123",
  "message": "Explain quantum computing",
  "streaming": true
}

Handling Streamed Response

The response is sent as Server-Sent Events (SSE):

const response = await fetch('/api/prompt/ID', {
  method: 'POST',
  headers: {
    'Content-Type': 'application/json',
    'X-API-Key': 'po_...'
  },
  body: JSON.stringify({
    sessionId: 'user-123',
    message: 'Hello',
    streaming: true
  })
});
 
const reader = response.body.getReader();
const decoder = new TextDecoder();
 
while (true) {
  const { done, value } = await reader.read();
  if (done) break;
 
  const chunk = decoder.decode(value);
  console.log(chunk); // Process each token
}

Streaming Benefits

Conversation Management

Maintain context across multiple API calls.

Continuing Conversations

Pass conversationId to continue:

{
  "sessionId": "user-123",
  "message": "Tell me more about that",
  "conversationId": "conv_abc123"
}

Using Previous Messages

Pass conversation history manually:

{
  "sessionId": "user-123",
  "message": "What was the third point?",
  "previousMessages": [
    {"role": "user", "content": "List 5 benefits of exercise"},
    {"role": "assistant", "content": "Here are 5 benefits..."}
  ]
}

Session ID Best Practices

Security Considerations

API Key Security

Backend Proxy Pattern

Instead of calling API directly from browser:

// Your backend server
app.post('/api/chat', async (req, res) => {
  const response = await fetch('https://promptowl.ai/api/prompt/ID', {
    method: 'POST',
    headers: {
      'X-API-Key': process.env.PROMPTOWL_API_KEY,
      'Content-Type': 'application/json'
    },
    body: JSON.stringify(req.body)
  });
  res.json(await response.json());
});

CORS

PromptOwl API allows cross-origin requests:

• All origins permitted (*)
• POST and OPTIONS methods
• X-API-Key header allowed

Rate Limiting

Note: Contact your administrator or PromptOwl support  to configure rate limiting for your API endpoints.

Best Practices

API Integration

Do:

• Use a backend proxy
• Store keys securely
• Handle errors gracefully
• Implement retry logic
• Log API calls for debugging

Don’t:

• Expose keys in frontend
• Ignore error responses
• Skip validation
• Overload with requests

Embedded Chat

Do:

• Match brand colors
• Test on mobile
• Consider position carefully
• Provide clear instructions

Don’t:

• Make chat too small
• Clash with page colors
• Block important content
• Forget mobile users

Performance

Do:

• Use streaming for long responses
• Cache when possible
• Set appropriate token limits
• Monitor usage

Don’t:

• Request unnecessarily large responses
• Poll continuously
• Ignore token costs

Troubleshooting

”PromptOwl API key not found”

Cause: Missing API key header

Solutions:

1. Check header name: X-API-Key
2. Verify key is included in request
3. Check for typos in key

”Invalid API key”

Cause: Key doesn’t match or is inactive

Solutions:

1. Verify key is correct
2. Check key isn’t regenerated
3. Ensure key is active
4. Generate new key if needed

”This prompt is not live”

Cause: Prompt is in Draft status

Solutions:

1. Go to Publish tab
2. Toggle to Live status
3. Save changes
4. Retry API call

Empty or Error Responses

Solutions:

1. Check request body format
2. Verify JSON is valid
3. Ensure required fields present
4. Check message isn’t empty

Embed Not Loading

Solutions:

1. Verify prompt ID is correct
2. Check prompt is Live
3. Ensure HTTPS on your page
4. Check browser console for errors

Streaming Not Working

Solutions:

1. Verify streaming: true in request
2. Check client handles SSE
3. Ensure connection isn’t closed early
4. Test with non-streaming first

Quick Reference

API Endpoint

POST /api/prompt/{promptId}
Header: X-API-Key: po_your-key

Minimum Request

{
  "sessionId": "user-id",
  "message": "Your message"
}

Full Request Options

{
  "sessionId": "string",
  "message": "string",
  "previousMessages": [],
  "variables": `{}`,
  "llmType": "openai",
  "llmSettings": `{}`,
  "streaming": false,
  "conversationId": "string"
}

HTTP Status Codes

Embed Template

<iframe
  src="https://promptowl.ai/chatPopup/{sessionId}/{promptId}"
  width="480" height="860">
</iframe>

Related Guides

• Editing and Maintaining Prompts
• Variables and Dynamic Content
• Security and Compliance