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Retell AI Communication API: Watch Calls, Create a Phone Call

Voice AI platform for building phone agents and conversational call flows. 1 trigger, 2 searches, and 3 actions including Watch Calls.

About this integration

Voice AI platform for building phone agents and conversational call flows. Use it from the workflow canvas with no custom glue script required.

This integration exposes 1 trigger, 2 search modules and 3 actions as workflow nodes. Authentication uses basic authentication.

How to connect

The credential form asks for API Key.

Prefer the interactive builder form? Open it on the app page.

Enter your credentials below. WEXTL stores them encrypted and uses them only to call the API on your behalf.

Field	Type	Help
API KeyRequired	password	You can follow this instruction to get your API Key.

Use it in workflow automation

Start with Watch Calls, then add Create a Phone Call.

The canvas below runs Watch Calls into Create a Phone Call — watch the video, then drop a node onto the canvas.

Select the Watch Calls trigger and the workflow fires automatically when the event occurs — no polling required.

Then add Create a Phone Call as the next node. Branch, filter, or hand off to other integrations from there.

The integration includes 4 ready-made modules for communication work — each run logs its inputs and outputs for debugging.

Retell AI workflow on the canvas: Watch Calls then Create a Phone Call

Retell AI workflow on the canvas: Watch Calls then Create a Phone Call

Triggers, searches and actions

Use the tables below to inspect Retell AI's 1 trigger, 2 search modules, and 3 actions.

Triggers

1 trigger fire automatically when specified events occur — no polling or cron job needed.

Watch Calls

Searches

Fetch data on demand using 2 search modules that query the app during a run.

Get a Call
Search Calls

Actions

3 action modules cover the full range of create, update, and delete operations.

Create a Phone Call
Create a Web Call
Make an API Call

Explore the fields available for each Retell AI trigger, search, and action.

Triggers

Output fields

Field	Type
Call Type	text
From Number	text
To Number	text
Direction	text
Call ID	text
Agent ID	text
Call Status	text
Metadata	object
Retell Llm Dynamic Variables	object
Opt Out Sensitive Data Storage	boolean
Start Timestamp	number
End Timestamp	number
Transcript	text
Transcript Object	array
Transcript With Tool Calls	array
Recording Url	text
Public Log Url	text
E 2e Latency	object
P 50	number
P 90	number
P 95	number
P 99	number
Max	number
Min	number
Num	number
Llm Latency	object
P 50	number
P 90	number
P 95	number
P 99	number
Max	number
Min	number
Num	number
Llm Websocket Network Rtt Latency	object
P 50	number
P 90	number
P 95	number
P 99	number
Max	number
Min	number
Num	number

2other output fields

Searches

Input fields

Field	Type
Call IDRequired	choice

Output fields

Field	Type
Call Type	text
From Number	text
To Number	text
Direction	text
Call ID	text
Agent ID	text
Call Status	text
Metadata	object
Retell Llm Dynamic Variables	object
Opt Out Sensitive Data Storage	boolean
Start Timestamp	number
End Timestamp	number
Transcript	text
Transcript Object	array
Transcript With Tool Calls	array
Recording Url	text
Public Log Url	text
E 2e Latency	object
P 50	number
P 90	number
P 95	number
P 99	number
Max	number
Min	number
Num	number
Llm Latency	object
P 50	number
P 90	number
P 95	number
P 99	number
Max	number
Min	number
Num	number
Llm Websocket Network Rtt Latency	object
P 50	number
P 90	number
P 95	number
P 99	number
Max	number
Min	number
Num	number

2other output fields

Input fields

Field	Type
Filter Criteria	object
Agent IDs	choice
Before Start Timestamp	date
After Start Timestamp	date
Before End Timestamp	date
After End Timestamp	date
Sort Order	choice
Limit	number

Output fields

Field	Type
Call Type	text
From Number	text
To Number	text
Direction	text
Call ID	text
Agent ID	text
Call Status	text
Metadata	object
Retell Llm Dynamic Variables	object
Opt Out Sensitive Data Storage	boolean
Start Timestamp	number
End Timestamp	number
Transcript	text
Transcript Object	array
Transcript With Tool Calls	array
Recording Url	text
Public Log Url	text
E 2e Latency	object
P 50	number
P 90	number
P 95	number
P 99	number
Max	number
Min	number
Num	number
Llm Latency	object
P 50	number
P 90	number
P 95	number
P 99	number
Max	number
Min	number
Num	number
Llm Websocket Network Rtt Latency	object
P 50	number
P 90	number
P 95	number
P 99	number
Max	number
Min	number
Num	number

2other output fields

Actions

Input fields

Field	Type
From NumberRequired	text
To NumberRequired	text
Override Agent ID	choice
Metadata	array
Key NameRequired	text
ValueRequired	text
Retell LLM Dynamic Variables	array
Key NameRequired	text
ValueRequired	text

Output fields

Field	Type
Call Type	text
From Number	text
To Number	text
Direction	text
Call ID	text
Agent ID	text
Call Status	text
Metadata	object
Retell Llm Dynamic Variables	object
Opt Out Sensitive Data Storage	boolean
Start Timestamp	number
End Timestamp	number
Transcript	text
Transcript Object	array
Transcript With Tool Calls	array
Recording Url	text
Public Log Url	text
E 2e Latency	object
P 50	number
P 90	number
P 95	number
P 99	number
Max	number
Min	number
Num	number
Llm Latency	object
P 50	number
P 90	number
P 95	number
P 99	number
Max	number
Min	number
Num	number
Llm Websocket Network Rtt Latency	object
P 50	number
P 90	number
P 95	number
P 99	number
Max	number
Min	number
Num	number

2other output fields

Input fields

Field	Type
Agent IDRequired	choice
Metadata	array
Key NameRequired	text
ValueRequired	text
Retell LLM Dynamic Variables	array
Key NameRequired	text
ValueRequired	text

Output fields

Field	Type
Call Type	text
From Number	text
To Number	text
Direction	text
Call ID	text
Agent ID	text
Call Status	text
Metadata	object
Retell Llm Dynamic Variables	object
Opt Out Sensitive Data Storage	boolean
Start Timestamp	number
End Timestamp	number
Transcript	text
Transcript Object	array
Transcript With Tool Calls	array
Recording Url	text
Public Log Url	text
E 2e Latency	object
P 50	number
P 90	number
P 95	number
P 99	number
Max	number
Min	number
Num	number
Llm Latency	object
P 50	number
P 90	number
P 95	number
P 99	number
Max	number
Min	number
Num	number
Llm Websocket Network Rtt Latency	object
P 50	number
P 90	number
P 95	number
P 99	number
Max	number
Min	number
Num	number

2other output fields

Input fields

Field	Type
URLRequired	text
MethodRequired	choice
Headers	array
Header	object
Query String	array
Parameter	object
Body	text

Output fields

Field	Type
Body	text
Headers	object
Status code	number