AsyncAPI channel · Microsoft Teams · Microsoft Teams Event Surface

`bot/activities`

The Teams channel of the Azure Bot Service POSTs Bot Framework Activity objects to the bot's messaging endpoint. The `type` discriminator identifies the kind of activity; for `conversationUpdate` and `event` activities, the `channelData.eventType` discriminator further identifies Teams-specific sub-events.

Open source AsyncAPI → All Microsoft Teams channels Microsoft Teams provider profile

Provider: Microsoft Teams AsyncAPI: v2.6.0 Spec: Microsoft Teams Event Surface Operations: 1 Messages: 9

Channel address

bot/activities

Operations

receiveBotActivity

Bot Framework Activity delivered to the bot endpoint

Messages

messageActivity

Bot Framework message activity

Content-Type: application/json

messageUpdateActivity

Sent when a previously sent message is edited or restored from soft-delete. `channelData.eventType` is `editMessage` or `undeleteMessage`.

Content-Type: application/json

messageDeleteActivity

Sent when a message is soft-deleted. `channelData.eventType` is `softDeleteMessage`.

Content-Type: application/json

conversationUpdateActivity

Sent for membership and team/channel lifecycle changes. The `channelData.eventType` discriminator identifies the Teams-specific sub-event: `teamMemberAdded`, `teamMemberRemoved`, `teamRenamed`, `chann

Content-Type: application/json

messageReactionActivity

Sent when a user adds or removes a reaction (like, heart, laugh, surprised, sad, angry, and other supported emoji reactions) to a message previously sent by the bot.

Content-Type: application/json

installationUpdateActivity

Sent when the bot is installed, uninstalled, or upgraded in a conversation thread. The `action` field is one of `add`, `remove`, `add-upgrade`, or `remove-upgrade`.

Content-Type: application/json

typingActivity

Bot Framework typing activity

Content-Type: application/json

invokeActivity

Synchronous request from Teams that expects a response payload. The `name` discriminator identifies the invoke kind. Documented Teams invoke names include `composeExtension/query`, `composeExtension/q

Content-Type: application/json

eventActivity

Asynchronous notification from Teams. Documented Teams event names include `application/vnd.microsoft.readReceipt`, `application/vnd.microsoft.meetingStart`, `application/vnd.microsoft.meetingEnd`, `a

Content-Type: application/json

About AsyncAPI

The AsyncAPI specification describes event-driven APIs the way OpenAPI describes request/response APIs. A channel is the named pipe — a webhook URL, a Kafka topic, a WebSocket route, an MQTT subject — that producers and consumers publish or subscribe to. Each channel carries one or more messages with structured payloads, and an operation declares whether a given party sends or receives on that channel.

Browse every event-driven channel on the APIs.io network or compare with the broader Naftiko capability, Agent Skill, and MCP server surfaces of the same providers.