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Amplitude

Amplitude Webhooks and Cohort Sync

The Webhooks Streaming destination forwards Amplitude event and user payloads to a customer-configured HTTPS endpoint, and the Cohort Sync family of destinations pushes cohort membership changes to downstream tools such as Iterable, Braze, MoEngage, Customer.io, Intercom, HubSpot, Google Ads, Bing Ads, Google Pub/Sub, Amazon Kinesis, and Amazon S3. Sync types include on-demand, automated (hourly or daily), and real-time (per-minute) modes. This AsyncAPI document models the subscriber-side HTTP contract for Webhooks Streaming and the generic cohort membership change shape; vendor-specific cohort sync destinations conform to each downstream tool's own API contract.

Documentation Provider Profile APIs.io AsyncAPI GitHub

Amplitude Webhooks and Cohort Sync is one of 29 APIs that Amplitude publishes on the APIs.io network, described by an AsyncAPI event-driven specification.

Tagged areas include Cohort Sync, Destinations, Event, Streaming, and Webhook. The published artifact set on APIs.io includes API documentation and an AsyncAPI specification.

This event API exposes 2 operations across 2 channels, and defines 6 schemas. It is described by AsyncAPI 2.6.0, at version 1.0.0.

The API connects through a single server, {webhookUrl} (https).

2 operations 2 channels 6 schemas

Metadata

The identity and technical contract details declared by the specification.

Specification
AsyncAPI 2.6.0
API Version
1.0.0
Server
{webhookUrl} (https)
Contact
Amplitude Support
License
Amplitude Terms of Service
Resource Areas
1

Channels & Operations 2

Across 2 channels, the API surfaces 2 operations. Each is listed below with its action, channel, parameters, and response codes.

Channels 2
PUB
/webhooks/streaming
Receive an Amplitude Webhooks Streaming payload.
receiveAmplitudeWebhook body
PUB
/cohort-sync/google-pubsub
Receive a cohort membership change message.
receiveCohortMembershipChange body

Messages & Schemas 6

The contract defines 6 schemas that model the data carried by its messages. The most detailed are AmplitudeEvent (40 properties), AmplitudeUser (19 properties), CohortMembershipChangePayload (9 properties). Each schema is shown below with its type and property counts.

WebhookEvent
message
Default Amplitude event payload forwarded by the Webhooks Streaming destination.
WebhookUser
message
Default Amplitude user payload forwarded by the Webhooks Streaming destination.
CohortMembershipChange
message
A user entered or exited a synced cohort.
AmplitudeEvent
object
Amplitude raw event format, as documented in the Export API reference. All fields are optional unless required by the event ingestion contract.
40 properties
AmplitudeUser
object
Amplitude user payload, as documented in the Identify API reference. Either userid or deviceid must identify the user; the remaining fields enrich the user rec…
19 properties
CohortMembershipChangePayload
object
Per-user cohort membership delta. Field set mirrors the columns Amplitude exposes in the cohort sync CSV log (Amplitude ID, operation, mapped properties, skip…
9 properties 3 required

Specification

The full machine-readable AsyncAPI contract behind this narrative.

Source

amplitude-webhooks-cohort-sync-asyncapi.yml Raw ↑

Other APIs Amplitude publishes across the network.

Amplitude Batch Event Upload API
AE Profile APIs.io
Amplitude Group Identify API
AE Profile APIs.io
Amplitude Releases API
AE Profile APIs.io
Amplitude Session Replay API
AE Profile APIs.io
Amplitude User Privacy API
AE Profile APIs.io
Amplitude Annotations API
AE Profile APIs.io
Amplitude Cohorts API
AE Profile APIs.io
Amplitude Data Access API
AE Profile APIs.io
Amplitude Data Deletion API
AE Profile APIs.io
Amplitude Deployments API
AE Profile APIs.io
Amplitude Evaluation API
AE Profile APIs.io
Amplitude Event Categories API
AE Profile APIs.io
#Cohort Sync#Destinations#Event#Streaming#Webhook
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API Details
ID
amplitude:webhooks-cohort-sync
Server
{webhookUrl} (https)
Docs
https://amplitude.com/docs/data/destination-catalog/webhooks
Provider
Amplitude
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