⚠️ Warning: API 1.0 Deprecation Notice
API 1.0 (https://api.mountain.com) will be deprecated at the end of this month. After April 1, 2026, requests made to API 1.0 will no longer return reporting data.
If you're currently using API 1.0, you must upgrade to API 3.0 to continue receiving data.
Overview
With MNTN API 3.0, you can take more control over your data and view the full impact your TV commercials have on full-funnel performance.
💡 Pro Tip: If you view MNTN data anywhere outside of the MNTN, Rockerbox, or GA4 Platforms, you're likely leveraging an API to pull in data. This data can range from spend data to performance metrics.
MNTN API 3.0 is the current version of the MNTN Reporting API. If you are using API 1.0, you will need to migrate before deprecation to avoid disruption to your reporting workflows.
This article covers:
What’s new in API 3.0
Confirm which API version you’re using
Upgrade using one of two available methods
What you'll get
What you'll get
First Touch is the default for Verified Visit and Conversion reporting, providing a holistic view of CTV performance. You still have access to Last Touch reporting metrics.
You can query and filter on multiple dimensions simultaneously when retrieving datasets.
We simplified API definitions for ease of use.
Characteristics | API 1.0 | API 2.0 | API 3.0 |
Multidimensional Reporting | Not Supported | Supported | Supported |
Default Reporting Type | Last Touch | Last Touch | First Touch |
API Domain |
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Confirm Your API Version
Look at the domain in your API string:
API 1.0
https://api.mountain.com
API 2.0
https://api2.mountain.com
API 3.0
https://api3.mountain.com
Example: API Strings
API 1.0
https://api.mountain.com/apidata?begin=2024-01-01&end=2024-01-31&sum=campaigngroup.name&key=<>
API 3.0
https://api3.mountain.com/apidata?format=human&begin=2024-01-01&end=2024-01-31&data=campaigninfo.name&key=<>
Upgrade Your Method
There are two ways to upgrade to API 3.0. Choose the method that fits your setup.
Option A: Generate a New API Link from Reporting (Recommended)
Use this method if you:
Connect to a BI platform
Don't require custom manual API structuring
Want the simplest upgrade path
Steps:
Sign in to MNTN.
Go to Reporting.
Either build a net-new data table, or access an existing table within one of your default or custom reports.
Click on the link icon at the top right of the data table.
This will populate an R2 API Request Link.
Copy this link and paste it into your relevant endpoint.
This link includes your API key.
💡 Pro Tip: Your format is defaulted to
format=human, but this can be updated toformat=json,format=excel, orformat=csv.
Option B: Manually Update Your Existing API Integration
This method is intended for advanced users.
Steps:
Update the root domain.
Replace:
https://api.mountain.com
With:
https://api3.mountain.com
At the end of the domain, you may use:
/apidatafor performance data/apilistto view available summaries and metrics
to access your information.
Update data retrieval structure.
Info Tables: INFO calls remain valid.
Graph Tables: Any non-INFO and non-DETAIL table must be converted to
graph.Prior:
advertiser.impressions,advertiser.visitrate
New:
graph.impressions,graph.visitrate
Name / ID Calls from Summary Tables
Prior:
advertiser.name,advertiser.impressions,advertiser.visitrate
New:
advertiserinfo.name,graph.impressions,graph.visitrate
Detail Tables: Detail tables (including Conversions) remain unchanged.
Update filters.
Filtering uses a scalable JSON-style syntax.
For GET requests, values must be encoded.Prior
filter=campaigngroup.id=’200’
New (display syntax must be encoded):
filter={"campaigninfo.id":{"in":["200"]}}Post:
"filter":{
"campaigninfo.id": {
"in": ["28915"]
}
}
Data Availability Notes
Historical Data
Data prior to 1/1/2023 is not supported in the new dimensional dataset and must be retrieved via the legacy API.
Access the API request legend
For a full list of everything you can request through API 3.0:
Copy the template URL:
Paste the URL in your browser's address bar.
Replace [YOURAPIKEY] with your actual API key in the URL link.
You now have access to the legend.Press Enter.
Table and Metric Changes
Table changes
CampaignGroupInfo -> CampaignInfo
CreativeGroupInfo -> CreativeInfo
CreativeInfo -> AdInfo
Metric changes
Please read Table Changes first and apply to this section:
CampaignGroupInfo.CampaignGroupID -> CampaignInfo.CampaignID
CreativeGroupInfo.GroupID -> CreativeInfo.CreativeID
CreativeInfo.CreativeID -> CreativeInfo.AdID
Additional Notes
sum=parameter
No longer required. Info tables automatically summarize data.
You may continue using sum= if preferred.
Segment data
Still retrieved via api.mountain.com using legacy syntax.
Filter
Filtering will have new syntax and will require encoding before being leveraged in the GET version of our API.
Custom calculations
Not supported in API 3.0 yet.
Access Last Touch Data
In the MNTN API 3.0 data set, Verified Visit and Conversion Data is defaulted to our First Touch Reporting model, but you still have access to Last Touch Reporting Metrics within your available metrics. Simply add in the additional Last Touch metrics to your custom reports or API calls to access that data.
Total Verified Visits | The total number of First-Touch visits to your site within your defined Verified Visit window after being exposed to a PTV ad. |
Total Conversions | The total number of Conversions that resulted from a First-Touch Verified Visit within the conversion window. |
Total Last Touch Verified Visits | The total number of Last-Touch visits to your site that visited through an organic or direct path within your defined Verified Visit window after being exposed to a PTV ad. |
Total Last Touch Conversions | The total number of Conversions that resulted from a Last-Touch Verified Visit within the conversion window. |
💡 Pro Tip: Additional Metrics that leverage Verified Visits and Conversions in their calculations have also been added. This includes:
Last Touch Cost Per Visit
Last Touch Visit Rate
Last Touch Average Order Value
Last Touch Conversion Rate
Last Touch CPA
Last Touch Order Value
Last Touch ROAS



