API Access

Community Access


5000 Requests

5 million SUs

Every Month

Use our data API for any purpose up to these limits without any commitment


  • Directly download up to 3 million station-hours of data every month though our online download tool

  • No credit card required


pay for what you use

If you use more than the community tier, pay just $5 per month plus

$0.05 per 1000 Requests

$0.15 per 1 million SUs

Up to a limit of 1.5 billion SU/month.


  • All community access features

  • If your usage is under the free limit, you pay nothing

  • Stronger API servers with faster response times at peak periods

  • Email based customer support


Premium access

We’ll work with you to create a plan which can involve features such as large volume data access, SLAs, or advanced technical support.


  • Requests are a basic count of times you asked our API for data or metadata, and does not consider to the volume of data requested.

  • Service Units (SUs) determine of the total number of measurements delivered and/or accessed in an interaction with Synoptic. For example, a request for 2 hours from 2 stations, which measure 6 variables 4 times an hour, would use 2 hours * 2 stations * 6 variables * 4 per hour, equalling 96 SUs.


Alert and Push Services



$0.02 per listening hour

$0.50 per million delivered SU

Any account with valid payment information stored may access our streaming products. There is no free tier for streaming usage.


support for critical services

For enhanced support or SLA requirements, we can work with you to determine an ideal product solution.

  • Listening-hours determine how many hours each connection has been listening. Two connections listening for 10 hours would equal 20 listening hours.

  • Service Units (SUs) for the streaming services are the same as for API access.


Some Extra Points

Visit our terms and conditions for the complete details, but here are some important notes

  • A pay-as-you-go plan is activated by adding a credit card to your account

  • All pay-as-you-go charges are monthly, and will be debited automatically from a valid credit card on file on the first day of the month following the period billed

  • Synoptic does not directly handle credit card or billing information

  • Prices and charges are in US Dollars