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Layercode

Layercode Webhooks API

HMAC-signed webhook Layercode POSTs to your backend with session and transcript events (session.start, message, data, session.update, session.end); your backend streams response.tts / response.data / response.end events back as Server-Sent Events that drive the agent's speech.

Documentation Provider Profile APIs.io AsyncAPI GitHub

Layercode Webhooks API is one of 5 APIs that Layercode publishes on the APIs.io network, described by an AsyncAPI event-driven specification.

Tagged areas include Webhook, SSE, and Event. The published artifact set on APIs.io includes API documentation, an API reference, and an AsyncAPI specification.

This event API exposes 2 operations across 1 channel, and defines 15 schemas. It is described by AsyncAPI 2.6.0, at version 1.0.0.

The API connects through a single server, api.layercode.com/v1/agents/web/websocket (wss).

2 operations 1 channels 15 schemas

Metadata

The identity and technical contract details declared by the specification.

Specification
AsyncAPI 2.6.0
API Version
1.0.0
Base URL
https://docs.layercode.com/api-reference/webhook-sse-api
Contact
API Evangelist
License
API documentation - Layercode Terms
Resource Areas
1

Channels & Operations 2

Across 1 channel, the API surfaces 2 operations. Each is listed below with its action, channel, parameters, and response codes.

Channels 2
SUB
/v1/agents/web/websocket
Messages Layercode sends to the client.
serverToClient body
PUB
/v1/agents/web/websocket
Messages the client sends to Layercode.
clientToServer body

Messages & Schemas 15

The contract defines 15 schemas that model the data carried by its messages. Each schema is shown below with its type and property counts.

ClientReady
message
Signals the client is connected and ready to stream.
ClientAudio
message
A chunk of microphone audio from the browser.
TriggerTurnStart
message
TriggerTurnEnd
message
TriggerAudioReplayFinished
message
Client finished playing back a response audio turn.
ClientResponseText
message
A typed text message from the user.
ClientResponseData
message
Arbitrary structured JSON emitted by the client UI.
TurnStart
message
ResponseAudio
message
Synthesized speech audio from Layercode.
ResponseTextDelta
message
ResponseText
message
UserTranscriptInterimDelta
message
UserTranscriptDelta
message
UserTranscript
message
ResponseData
message
Structured JSON pushed to the client without audio.

Specification

The full machine-readable AsyncAPI contract behind this narrative.

Source

layercode-asyncapi.yml Raw ↑

Other APIs Layercode publishes across the network.

Layercode Realtime Voice API
AE Profile APIs.io
Layercode Agents API
AE Profile APIs.io
Layercode Calls API
AE Profile APIs.io
Layercode Sessions API
AE Profile APIs.io
#Webhook#SSE#Event
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API Details
ID
layercode:layercode-webhooks-api
Base URL
https://docs.layercode.com/api-reference/webhook-sse-api
Docs
https://docs.layercode.com/api-reference/webhook-sse-api
Provider
Layercode
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