Public API - DATALYR Documentation

The DATALYR Public API provides read-only access to your analytics data. Use it to build custom dashboards, export data, or integrate with other tools.

Authentication

All requests require an API key in the Authorization header:

Authorization: Bearer dk_your_api_key

Both SDK keys (dk_) and Agent keys (dk_agent_) work on all API routes.

Key Types

Key Type	Prefix	Purpose
SDK Key	`dk_`	Event ingestion, SDK setup, API access
Agent Key	`dk_agent_`	AI Chat, API access, MCP integrations

Generate keys in Settings -> API Keys in the DATALYR dashboard.

Error Responses

Status Code	Description
`401`	Missing or invalid API key
`403`	API key valid but feature not available on your plan
`429`	Rate limit exceeded

Rate Limiting

All API keys are limited to 100 requests per minute. Every response includes rate limit headers:

Header	Description
`X-RateLimit-Limit`	Maximum requests per window (100)
`X-RateLimit-Remaining`	Requests remaining in current window
`X-RateLimit-Reset`	Unix timestamp when the window resets

When you exceed the limit, the API returns a 429 status code. Wait until the X-RateLimit-Reset timestamp before retrying.

Base URL

https://app.datalyr.com/api/v1

Date/Time Parameters

All datetime parameters use ISO 8601 format:

2026-03-16T14:30:00Z              (UTC)
2026-03-16T08:30:00-06:00         (with timezone offset)
2026-03-16T14:30:45.123Z          (with seconds and milliseconds)

The API normalizes all datetimes to UTC internally using your workspace timezone. Most endpoints require start_date and end_date parameters. Both are inclusive.

Endpoints

GET /api/v1/overview

Returns core dashboard stats: visitors, pageviews, sessions, and custom events over time. Parameters:

Parameter	Type	Required	Default	Description
`start_date`	ISO 8601	Yes	—	Start of date range
`end_date`	ISO 8601	Yes	—	End of date range
`aggregation`	string	No	auto	`hour`, `day`, `week`, or `month`

Auto-aggregation logic:

Same day: hour
1-60 days: day
61-180 days: week
180+ days: month

Response:

{
  "visitors_total": 12450,
  "pageviews_total": 34200,
  "sessions_total": 18300,
  "custom_events_total": 890,
  "custom_event_counts": {
    "signup": 120,
    "purchase": 45,
    "add_to_cart": 310
  },
  "time_series": [
    {
      "timestamp": "2026-03-16T00:00:00Z",
      "visitors": 450,
      "pageviews": 1200,
      "sessions": 680,
      "custom_events": 35,
      "signup": 5,
      "purchase": 2
    }
  ],
  "aggregation_level": "hour",
  "timezone": "America/Chicago"
}

GET /api/v1/traffic

Returns traffic sources, campaigns, or top pages. Parameters:

Parameter	Type	Required	Default	Description
`start_date`	ISO 8601	Yes	—	Start of date range
`end_date`	ISO 8601	Yes	—	End of date range
`type`	string	No	`referrer`	`referrer`, `campaign`, or `page`
`limit`	number	No	20	Maximum results (1-100)

Response:

{
  "data": [
    { "name": "google.com", "count": 4500, "percentage": 36.1 },
    { "name": "twitter.com", "count": 2100, "percentage": 16.8 },
    { "name": "(direct)", "count": 1800, "percentage": 14.4 }
  ],
  "total": 12450,
  "type": "referrer"
}

GET /api/v1/devices

Returns browser, OS, or device type breakdown. Parameters:

Parameter	Type	Required	Default	Description
`start_date`	ISO 8601	Yes	—	Start of date range
`end_date`	ISO 8601	Yes	—	End of date range
`type`	string	No	`browser`	`browser`, `os`, or `deviceType`
`limit`	number	No	15	Maximum results (1-100)

Response:

{
  "data": [
    { "name": "Chrome", "count": 7800, "percentage": 62.6 },
    { "name": "Safari", "count": 2800, "percentage": 22.5 },
    { "name": "Firefox", "count": 1200, "percentage": 9.6 }
  ],
  "total": 12450,
  "type": "browser"
}

GET /api/v1/locations

Returns geographic breakdown by country, region, or city. Parameters:

Parameter	Type	Required	Default	Description
`start_date`	ISO 8601	Yes	—	Start of date range
`end_date`	ISO 8601	Yes	—	End of date range
`type`	string	No	`country`	`country`, `region`, or `city`
`limit`	number	No	15	Maximum results (1-100)

Response:

{
  "data": [
    { "name": "United States", "count": 8200, "percentage": 65.8, "code": "US" },
    { "name": "United Kingdom", "count": 1500, "percentage": 12.0, "code": "GB" },
    { "name": "Germany", "count": 800, "percentage": 6.4, "code": "DE" }
  ],
  "total": 12450,
  "type": "country"
}

GET /api/v1/events

Returns a paginated list of raw events with filtering. Parameters:

Parameter	Type	Required	Default	Description
`start_date`	ISO 8601	Yes	—	Start of date range
`end_date`	ISO 8601	Yes	—	End of date range
`event_name`	string	No	all	Comma-separated event names
`utm_source`	string	No	—	Filter by UTM source
`utm_medium`	string	No	—	Filter by UTM medium
`utm_campaign`	string	No	—	Filter by UTM campaign
`country`	string	No	—	Filter by country code
`region`	string	No	—	Filter by region
`city`	string	No	—	Filter by city
`page_path`	string	No	—	Filter by page path
`limit`	number	No	100	Maximum results (1-1000)
`offset`	number	No	0	Pagination offset

Response:

{
  "events": [
    {
      "id": "evt_abc123",
      "event_name": "pageview",
      "visitor_id": "v_xxx",
      "session_id": "s_xxx",
      "user_id": "u_xxx",
      "received_at": "2026-03-16T14:32:45.123Z",
      "page_path": "/pricing",
      "page_title": "Pricing - Acme",
      "page_url": "https://acme.com/pricing",
      "referrer": "https://google.com",
      "geo_country": "US",
      "geo_country_code": "US",
      "geo_region": "Texas",
      "geo_city": "Austin",
      "utm_source": "google",
      "utm_medium": "cpc",
      "utm_campaign": "spring_sale",
      "browser": "Chrome",
      "os": "macOS",
      "device_type": "desktop",
      "screen_width": "1920",
      "screen_height": "1080",
      "source": "web",
      "event_data": {}
    }
  ],
  "total_count": 34200,
  "has_more": true,
  "limit": 100,
  "offset": 0
}

Use offset and limit to paginate through results. The has_more field indicates whether additional results exist beyond the current page.

GET /api/v1/event-names

Returns all distinct event names tracked in your workspace over the last 30 days. Parameters: None required. Response:

{
  "events": [
    { "name": "pageview", "category": "web", "source": "web" },
    { "name": "purchase", "category": "conversion", "source": "shopify" },
    { "name": "signup", "category": "conversion", "source": "web" },
    { "name": "add_to_cart", "category": "ecommerce", "source": "web" },
    { "name": "payment_intent.succeeded", "category": "payment", "source": "stripe-webhooks" }
  ],
  "integrations": ["shopify", "stripe", "meta"]
}

The integrations array lists all connected data sources that have sent events.

GET /api/v1/realtime

Returns live visitor data and real-time metrics. Parameters:

Parameter	Type	Required	Default	Description
`time_window`	number	No	30	Minutes of data to include (1-60)

Response:

{
  "active_visitors": 23,
  "pageviews": 156,
  "events": 42,
  "revenue": 450.00,
  "top_pages": [
    { "path": "/pricing", "count": 12 },
    { "path": "/", "count": 8 },
    { "path": "/features", "count": 6 }
  ],
  "top_referrers": [
    { "name": "google.com", "count": 15 },
    { "name": "(direct)", "count": 8 }
  ],
  "top_locations": [
    { "name": "United States", "count": 14 },
    { "name": "United Kingdom", "count": 4 }
  ],
  "visitors": [
    {
      "visitor_id": "v_xxx",
      "country": "US",
      "city": "Austin",
      "current_page": "/pricing",
      "device": "desktop",
      "browser": "Chrome",
      "referrer": "google.com",
      "first_seen": "2026-03-16T14:20:00Z",
      "last_seen": "2026-03-16T14:32:45Z",
      "total_events": 8,
      "session_duration_seconds": 765
    }
  ],
  "timeline": [
    { "minute": "2026-03-16T14:00:00Z", "visitors": 18 },
    { "minute": "2026-03-16T14:01:00Z", "visitors": 20 }
  ],
  "time_window": 30,
  "timestamp": "2026-03-16T14:32:45Z"
}

The visitors array contains individual active visitors with their current session data. The timeline array contains per-minute visitor counts for the specified time window.

GET /api/v1/attribution

Returns campaign attribution and conversion data. Parameters:

Parameter	Type	Required	Default	Description
`start_date`	ISO 8601	Yes	—	Start of date range
`end_date`	ISO 8601	Yes	—	End of date range
`window_days`	number	No	30	Attribution window in days (7, 30, or 90)

Response:

{
  "campaigns": [
    {
      "utm_source": "google",
      "utm_medium": "cpc",
      "utm_campaign": "spring_sale",
      "visitors": 1200,
      "conversions": 45,
      "revenue": 8900.00,
      "conversion_rate": 3.75,
      "avg_order_value": 197.78
    },
    {
      "utm_source": "facebook",
      "utm_medium": "paid",
      "utm_campaign": "retargeting_q1",
      "visitors": 800,
      "conversions": 32,
      "revenue": 5600.00,
      "conversion_rate": 4.0,
      "avg_order_value": 175.00
    }
  ],
  "attribution_window_days": 30,
  "total_campaigns": 12,
  "date_range": {
    "start": "2026-03-01T00:00:00Z",
    "end": "2026-03-16T23:59:59Z"
  }
}

The window_days parameter controls how far back DATALYR looks for the original attribution touchpoint when linking a conversion to a campaign.

GET /api/v1/users

Returns a paginated list of tracked users and visitors. Parameters:

Parameter	Type	Required	Default	Description
`start_date`	ISO 8601	Yes	—	Start of date range
`end_date`	ISO 8601	Yes	—	End of date range
`search`	string	No	—	Search by visitor ID, user ID, or email
`limit`	number	No	100	Maximum results (1-1000)

Response:

{
  "users": [
    {
      "visitor_id": "v_abc123",
      "user_id": "u_def456",
      "email": "[email protected]",
      "first_seen": "2026-03-10T08:15:30Z",
      "last_seen": "2026-03-16T14:30:00Z",
      "total_events": 45,
      "total_sessions": 8,
      "country": "US",
      "city": "Austin",
      "device": "desktop",
      "browser": "Chrome"
    }
  ],
  "total_count": 1250,
  "has_more": true
}

GET /api/v1/users/:userId

Returns a single user profile with their session history and conversions. URL Parameters:

Parameter	Type	Required	Description
`userId`	string	Yes	Visitor ID or user ID

Response:

{
  "user": {
    "visitor_id": "v_abc123",
    "user_id": "u_def456",
    "email": "[email protected]",
    "first_seen": "2026-03-10T08:15:30Z",
    "last_seen": "2026-03-16T14:30:00Z",
    "total_events": 45,
    "total_sessions": 8,
    "country": "US",
    "city": "Austin"
  },
  "sessions": [
    {
      "session_id": "s_xxx",
      "started_at": "2026-03-16T14:00:12Z",
      "ended_at": "2026-03-16T14:05:42Z",
      "duration_seconds": 330,
      "events_count": 6,
      "pageviews_count": 4,
      "events": [
        {
          "event_name": "pageview",
          "page_path": "/",
          "received_at": "2026-03-16T14:00:12Z"
        },
        {
          "event_name": "pageview",
          "page_path": "/pricing",
          "received_at": "2026-03-16T14:01:30Z"
        },
        {
          "event_name": "signup",
          "received_at": "2026-03-16T14:03:45Z"
        }
      ]
    }
  ],
  "conversions": [
    {
      "event_name": "purchase",
      "value": 99.00,
      "received_at": "2026-03-14T10:22:15Z"
    }
  ]
}

The sessions array contains the user’s session history with individual events. The conversions array contains all conversion events associated with this user.

GET /api/v1/ads

Returns ad platform performance data from connected Meta, Google, and TikTok accounts. Parameters:

Parameter	Type	Required	Default	Description
`start_date`	ISO 8601	Yes	—	Start of date range
`end_date`	ISO 8601	Yes	—	End of date range
`platform`	string	No	all	`meta`, `google`, or `tiktok`
`level`	string	No	`campaign`	`campaign`, `adset`, or `ad`
`limit`	number	No	50	Maximum results (1-200)

Response:

{
  "data": [
    {
      "platform": "meta",
      "level": "campaign",
      "campaign_id": "123456",
      "campaign_name": "Spring Sale 2026",
      "status": "ACTIVE",
      "spend": 1200.50,
      "impressions": 45000,
      "clicks": 1800,
      "conversions": 45,
      "revenue": 8900.00,
      "roas": 7.41,
      "ctr": 4.0,
      "cpc": 0.67,
      "cpm": 26.68
    }
  ],
  "platforms_connected": ["meta", "google"],
  "total_spend": 3500.00,
  "total_revenue": 15200.00,
  "overall_roas": 4.34
}

Metrics in the response:

spend — Total ad spend in the platform’s currency
impressions — Number of ad impressions
clicks — Number of ad clicks
conversions — Number of conversion events
revenue — Total revenue attributed to conversions
roas — Return on ad spend (revenue / spend)
ctr — Click-through rate (clicks / impressions * 100)
cpc — Cost per click (spend / clicks)
cpm — Cost per thousand impressions (spend / impressions * 1000)

GET /api/v1/tags

Returns tag analytics data. Parameters:

Parameter	Type	Required	Default	Description
`start_date`	ISO 8601	Yes	—	Start of date range
`end_date`	ISO 8601	Yes	—	End of date range
`limit`	number	No	20	Maximum results (1-100)

Response:

{
  "data": [
    { "tag": "pricing_page", "count": 450, "percentage": 12.3, "source": "web" },
    { "tag": "checkout_flow", "count": 320, "percentage": 8.8, "source": "web" }
  ],
  "total": 3650
}

GET /api/v1/workspace

Returns workspace metadata, connected integrations, and plan information. Parameters: None required. Response:

{
  "id": "abc123",
  "name": "My Site",
  "domain": "example.com",
  "timezone": "America/Chicago",
  "connected_platforms": [
    { "provider": "meta", "status": "active" },
    { "provider": "google-ads", "status": "active" },
    { "provider": "shopify", "status": "active" },
    { "provider": "stripe", "status": "active" }
  ],
  "plan": "growth_plan",
  "created_at": "2025-11-20T15:30:00Z"
}

GET /api/v1/usage

Returns current billing period usage statistics. Parameters: None required. Response:

{
  "events_used": 45000,
  "events_limit": 100000,
  "postbacks_used": 1200,
  "postbacks_limit": 5000,
  "period_start": "2026-03-01T00:00:00Z",
  "period_end": "2026-03-31T23:59:59Z",
  "plan": "growth_plan"
}

The events_used and postbacks_used values reflect consumption in the current billing period. These reset on period_start each month.

Code Examples

curl

Get overview stats for the last 7 days:

curl -X GET "https://app.datalyr.com/api/v1/overview?start_date=2026-03-10T00:00:00Z&end_date=2026-03-16T23:59:59Z" \
  -H "Authorization: Bearer dk_your_api_key"

Get traffic sources:

curl -X GET "https://app.datalyr.com/api/v1/traffic?start_date=2026-03-01T00:00:00Z&end_date=2026-03-16T23:59:59Z&type=referrer&limit=10" \
  -H "Authorization: Bearer dk_your_api_key"

Search for a user by email:

curl -X GET "https://app.datalyr.com/api/v1/users?start_date=2026-03-01T00:00:00Z&end_date=2026-03-16T23:59:59Z&[email protected]" \
  -H "Authorization: Bearer dk_your_api_key"

Get Meta Ads campaign performance:

curl -X GET "https://app.datalyr.com/api/v1/ads?start_date=2026-03-01T00:00:00Z&end_date=2026-03-16T23:59:59Z&platform=meta&level=campaign" \
  -H "Authorization: Bearer dk_your_api_key"

Get real-time visitors:

curl -X GET "https://app.datalyr.com/api/v1/realtime?time_window=30" \
  -H "Authorization: Bearer dk_your_api_key"

JavaScript (fetch)

Get overview stats:

const API_KEY = 'dk_your_api_key';
const BASE_URL = 'https://app.datalyr.com/api/v1';

async function getOverview(startDate, endDate) {
  const params = new URLSearchParams({
    start_date: startDate,
    end_date: endDate
  });

  const response = await fetch(`${BASE_URL}/overview?${params}`, {
    headers: {
      'Authorization': `Bearer ${API_KEY}`
    }
  });

  if (!response.ok) {
    throw new Error(`API error: ${response.status}`);
  }

  return response.json();
}

// Usage
const data = await getOverview(
  '2026-03-10T00:00:00Z',
  '2026-03-16T23:59:59Z'
);
console.log(`Visitors: ${data.visitors_total}`);
console.log(`Pageviews: ${data.pageviews_total}`);

Get attribution data:

async function getAttribution(startDate, endDate, windowDays = 30) {
  const params = new URLSearchParams({
    start_date: startDate,
    end_date: endDate,
    window_days: windowDays.toString()
  });

  const response = await fetch(`${BASE_URL}/attribution?${params}`, {
    headers: {
      'Authorization': `Bearer ${API_KEY}`
    }
  });

  if (!response.ok) {
    throw new Error(`API error: ${response.status}`);
  }

  return response.json();
}

const attribution = await getAttribution(
  '2026-03-01T00:00:00Z',
  '2026-03-16T23:59:59Z'
);

for (const campaign of attribution.campaigns) {
  console.log(
    `${campaign.utm_source}/${campaign.utm_campaign}: ` +
    `${campaign.conversions} conversions, $${campaign.revenue} revenue`
  );
}

Paginate through events:

async function getAllEvents(startDate, endDate, eventName) {
  const allEvents = [];
  let offset = 0;
  const limit = 1000;
  let hasMore = true;

  while (hasMore) {
    const params = new URLSearchParams({
      start_date: startDate,
      end_date: endDate,
      event_name: eventName,
      limit: limit.toString(),
      offset: offset.toString()
    });

    const response = await fetch(`${BASE_URL}/events?${params}`, {
      headers: {
        'Authorization': `Bearer ${API_KEY}`
      }
    });

    const data = await response.json();
    allEvents.push(...data.events);
    hasMore = data.has_more;
    offset += limit;
  }

  return allEvents;
}

const purchases = await getAllEvents(
  '2026-03-01T00:00:00Z',
  '2026-03-16T23:59:59Z',
  'purchase'
);
console.log(`Total purchases: ${purchases.length}`);

Handle Rate Limiting

async function fetchWithRateLimit(url, options, maxRetries = 3) {
  for (let attempt = 0; attempt < maxRetries; attempt++) {
    const response = await fetch(url, options);

    if (response.status === 429) {
      const resetTimestamp = response.headers.get('X-RateLimit-Reset');
      const waitMs = (parseInt(resetTimestamp) * 1000) - Date.now();
      await new Promise(resolve => setTimeout(resolve, Math.max(waitMs, 1000)));
      continue;
    }

    return response;
  }

  throw new Error('Rate limit exceeded after retries');
}

Next Steps

AI Chat

Query your data with natural language

Web SDK

Install tracking on your website

Attribution Models

Understand how attribution works

Conversion Rules

Configure conversion postbacks

Introduction

Getting Started

Installation

Container & Tag Management

Understanding Your Data

Integrations

Features

Account & Billing

SDKs & Developer Tools

Troubleshooting

​Authentication

​Key Types

​Error Responses

​Rate Limiting

​Base URL

​Date/Time Parameters

​Endpoints

​GET /api/v1/overview

​GET /api/v1/traffic

​GET /api/v1/devices

​GET /api/v1/locations

​GET /api/v1/events

​GET /api/v1/event-names

​GET /api/v1/realtime

​GET /api/v1/attribution

​GET /api/v1/users

​GET /api/v1/users/:userId

​GET /api/v1/ads

​GET /api/v1/tags

​GET /api/v1/workspace

​GET /api/v1/usage

​Code Examples

​curl

​JavaScript (fetch)

​Handle Rate Limiting

​Next Steps

AI Chat

Web SDK

Attribution Models

Conversion Rules

Authentication

Key Types

Error Responses

Rate Limiting

Base URL

Date/Time Parameters

Endpoints

GET /api/v1/overview

GET /api/v1/traffic

GET /api/v1/devices

GET /api/v1/locations

GET /api/v1/events

GET /api/v1/event-names

GET /api/v1/realtime

GET /api/v1/attribution

GET /api/v1/users

GET /api/v1/users/:userId

GET /api/v1/ads

GET /api/v1/tags

GET /api/v1/workspace

GET /api/v1/usage

Code Examples

curl

JavaScript (fetch)

Handle Rate Limiting

Next Steps