Meetings

The Amazon Chime SDK allows you to use the same infrastructure that powers Amazon Chime meetings to add real-time audio, video, and and screen sharing capabilities to your applications. You can simplify operations, and build these features without managing real-time communication infrastructure services. The Amazon Chime SDK elastically scales to your applications needs, and allows your application to place meeting sessions in other AWS regions. Visit the AWS Service Region Table for the list of available regions.

The Amazon Chime SDK offers pay-for-use pricing with no upfront fees. Developers implementing the SDK can choose to implement some or all of the available media modalities (audio, video, and screen share) for a single rate.

  • Attendee Minutes
  • Attendee Minutes
  •  

    Rate per minute (each attendee)
    Connection to Amazon Chime SDK meeting session $0.0017

    Each “attendee” (i.e. an instance of your application that has implemented the SDK) is billed for each minute it is connected to a meeting session regardless of which media modalities (screen share, screen view, two-way audio, one-way audio, two-way video, or one-way video) are used.

    The Amazon Chime SDK can be integrated with Amazon EventBridge and Amazon Chime Voice Connector. Amazon charges do not include usage for other AWS services. See Amazon EventBridge and Amazon Chime Voice Connector pricing for additional fees related the use of these services.

Messaging

Messaging is pay-per-use with rates for sending messages, message delivery, and message storage. The Amazon Chime SDK only charges you for what you use, allowing you to scale as needed. *

 

Rates

Send message (Standard message up to 4KB)

$0.0007/message

Send control message (Limited to 30 bytes)

$0.000003/message

System message

$0.000003/message

Message delivery

$0.00001/endpoint

Storage

$5/GB-month

The Amazon Chime SDK can be integrated with other AWS Services, including Amazon S3 for message attachments. Amazon Chime charges do not include usage for other AWS services.**

Message delivery is charged per endpoint. 10 participants, each connected from a single device through an active websocket, would result in 10 separate delivery charges. Separate message delivery charges also apply each time the ListChannelMessage API is called to retrieve message history.

System messages are messages Amazon Chime sends for events like participants joining or leaving a channel. For a complete list of system messages, please see our developer guide.

The volume of storage billed in a month is based on the average storage used throughout the month. We measure your storage usage in "TimedStorage-ByteHrs," which are added up at the end of the month to generate your monthly charges. Storage size is measured based on the number of objects stored. Each standard channel message is counted as 4KB. Each control message is 30 bytes. All other objects, including channels, app instances, app instance users, admins, channel moderator, channel memberships, user bans, and read timestamps, are 1KB each.

* Except as otherwise noted, our prices are exclusive of applicable taxes and duties.

** May incur additional charges for using other services or products

Public Switched Telephone Network (PSTN) Audio

The Amazon Chime SDK allows you to add phone numbers for your meetings so that attendees can participate using a landline or mobile phone. For dial in, the service currently supports DID and toll-free phone numbers in the United States. For dial out, the service supports calling to over 115 countries. To use PSTN audio, builders create a serverless IVR application using AWS Lambda.

 

Rate per minute (each attendee)

PSTN Audio Application Usage
$0.002

Each “attendee” (i.e. an instance of your application that has implemented the SDK) is billed for each minute it is connected to a meeting session with PSTN audio. In addition to the PSTN Audio application usage, customers will be billed by the minute for connecting to an Amazon Chime SDK meeting session. Customers will also be billed by the day for phone numbers and by the minute for PSTN access (these features will be billed by the Amazon Chime Voice Connector service – see Voice Connector Pricing), and for AWS Lambda usage (See AWS Lambda Pricing).

Meetings Pricing Examples

Amazon Chime SDK

The developers of a learning management system (LMS) have integrated the Amazon Chime SDK into the solution to allow students to attend live lectures from their web application. The application hosts 100 weekly sessions for its students. Each course includes 1 instructor and 29 students, and is 60 minutes in duration. The application allows instructors to share webcam video and share content (i.e. screen share) at all times. Students can listen to instructors’ audio, and raise their hand to ask questions or participate in discussions with audio and webcam video.

In this example the cost for Amazon Chime SDK is:

Each Course Session
30 attendees × 60 minutes × $0.0017 per attendee-minute = $3.06 per course session

Total Cost per Week
$3.06 per course session × 100 course sessions per week = $306 per week

* May incur additional charges for using other services or products.

**Except as otherwise noted, our prices are exclusive of applicable taxes and duties.

Messaging Pricing Example 1

The developers of a learning management system (LMS) have integrated the Amazon Chime SDK into the solution to allow students to attend live lectures from their web application. The application hosts 100 weekly sessions for its students. Each session has a chat channel available for students and teachers to communicate. Each session includes 1 instructor and 29 students. For each session, there are an average of 50 standard messages sent and 35 control messages for features built into the chat experience. Control messages in this example do not persist. Messages are stored for 15 days and then are deleted via a retention policy.

(Please note: In this example, we assume the channel and all users were already created before the session so they are not included in storage cost for the session, but would be included in the customers overall storage cost. All participants are connected via one client for the same period of time so receive the same number of messages. This example also assumes 730 hours in a month, (365 days in a year x 24 hours in a day / 12 months in year).)

In this example, the cost for messaging is:

Each Course Session

Messages
31 system messages (30 add channel members + 1 delete channel) x $0.000003 = $0.000093
50 messages sent × $0.0007 per message = $0.035
35 control messages sent x $0.000003 = $0.000105
116 messages delivered x 30 participants x $0.00001 = $0.0348

Storage
50 standard messages x (4 x 1024) x 15 days x (24 hours / day) = 73,728,000 Bytes-Hours = 0.0687 GB-Hours
In GB-Month = 0. 0687 GB-Hours/ (730 hours/month) = 0.000094 GB-Month
Total storage cost = 0.000094 x $5/GB-Month = $0.000470

Total for session
$0.000093 for system messages + $0.035 for standard messages + $0.000105 for control messages + $0.0348 for message delivery + $0.000470 for storage = $0.0705 per session

Total Cost per Week
$0.0705 per session × 100 sessions per week = $7.05 per week

Messaging Pricing Example 2

A large brand hosts a product showcase to announce a new product, broadcast to 1,000 viewers. Viewers are all included in a chat channel where they can communicate with each other and the host via chat messaging. During the broadcast, 1,000 standard messages are sent. Messages are stored for 30 days and then deleted via a retention policy.

(Please note: In this example, we assume the channel and all users were already created before the session so they are not included in storage cost for the session, but would be included in the customers overall storage cost. All participants are connected via one client for the same period of time so receive the same number of messages. This example also assumes 730 hours in a month, (365 days in a year x 24 hours in a day / 12 months in year).)

In this example, the cost for messaging is:

1,001 system messages sent (1,000 add members + 1 delete channel) x $0.000003 = $0.003
1,000 messages sent x $0.0007 per message = $0.70
2,001 messages delivered x 1,000 participants x $0.00001 per delivery = $20.01
1,000 standard messages x (4 x 1024) x 30 days x (24 hours / day) = 2,949,120,000 Bytes-Hours = 2.75 GB-Hours
In GB-Month = 2.75 / 730 hours/month = 0.003767 GB-Month
Total storage cost = 0.003767 GB-Month x $5/GB-Month = $0.01884

Total Cost for the session
$0.70 for messages + $20.01 for deliveries + $0.01884 for storage = $20.73

PSTN Audio Pricing Example

Dialing into an Amazon Chime SDK Meeting

Consider a company of 50 employees who wants to make it easy to join Amazon Chime SDK meetings from a landline or mobile phone. The company wants to publish a US toll-free phone number so employees don't incur the costs calling into meetings. On average each employee places 10 calls per month that are 22 minutes in length for a total of 11,000 monthly minutes.

The costs for Inbound Calling, PSTN Audio Application Usage, AWS Lambda invocations, Connecting to an Amazon Chime SDK meeting session, and the toll-free phone number rental are:

Inbound Calling (Toll-free) Minute Usage Cost

11,000 (minutes) x $0.011910 (per minute) = $131.01

PSTN Audio Application Usage Cost
11,000 (minutes) x $0.002 (per minute) = $22.00

AWS Lambda Requests Cost
$0.2 (per 1M requests) / 1,000,000 * 20 (average invocations per call) * 500 (calls per month) = $0.002

AWS Lambda Duration Cost
$0.0000166667 (cost for every GB-second) * 20 (average invocations per call) * 5 (duration of each request in seconds) * 500 (calls per month) = $0.83

Connection to Amazon Chime SDK meeting session
11,000 (minutes) x $ $0.0017 (per minute) = $18.70

Toll-free Phone Number Cost
$1*

Total monthly Cost
$131.01 + $22.00 + $0.002 + $0.83 + $18.70 + $1 = $173.55**

* May incur additional charges for using other services or products.
**Except as otherwise noted, our prices are exclusive of applicable taxes and duties

Additional pricing resources

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