List Calls

POST

list-calls

object

filter_criteria

object

agent_id

array

call_status

array

in_voicemail

array

disconnection_reason

array

from_number

array

to_number

array

call_type

array

direction

array

user_sentiment

array

call_successful

array

start_timestamp

object

upper_threshold

integer

lower_threshold

integer

duration_ms

object

upper_threshold

integer

lower_threshold

integer

sort_order

enum<string>

limit

integer

pagination_key

string

Authorizations

Authorization

string

headerrequired

Authentication header containing API key (find it in dashboard). The format is "Bearer YOUR_API_KEY"

Body

application/json

filter_criteria

object

filter_criteria.agent_id

string[]

Only retrieve calls that are made with specific agent(s).

filter_criteria.call_status

enum<string>[]

Only retrieve calls with specific call status(es).

Available options:

registered,

ongoing,

ended,

error

filter_criteria.in_voicemail

boolean[]

Only retrieve calls that are in voicemail or not in voicemail.

filter_criteria.disconnection_reason

enum<string>[]

Only retrieve calls with specific disconnection reason(s).

Available options:

user_hangup,

agent_hangup,

call_transfer,

voicemail_reached,

inactivity,

machine_detected,

max_duration_reached,

concurrency_limit_reached,

no_valid_payment,

scam_detected,

error_inbound_webhook,

dial_busy,

dial_failed,

dial_no_answer,

error_llm_websocket_open,

error_llm_websocket_lost_connection,

error_llm_websocket_runtime,

error_llm_websocket_corrupt_payload,

error_frontend_corrupted_payload,

error_twilio,

error_no_audio_received,

error_asr,

error_retell,

error_unknown,

error_user_not_joined,

registered_call_timeout

filter_criteria.from_number

string[]

Only retrieve calls with specific from number(s).

filter_criteria.to_number

string[]

Only retrieve calls with specific to number(s).

filter_criteria.call_type

enum<string>[]

Only retrieve calls with specific call type(s).

Available options:

web_call,

phone_call

filter_criteria.direction

enum<string>[]

Only retrieve calls with specific direction(s).

Available options:

inbound,

outbound

filter_criteria.user_sentiment

enum<string>[]

Only retrieve calls with specific user sentiment(s).

Available options:

Negative,

Positive,

Neutral,

Unknown

filter_criteria.call_successful

boolean[]

Only retrieve calls with specific call successful(s).

filter_criteria.start_timestamp

object

Only retrieve calls with specific range of start timestamp(s).

filter_criteria.duration_ms

object

Only retrieve calls with specific range of duration(s).

sort_order

enum<string>

default: descending

The calls will be sorted by start_timestamp, whether to return the calls in ascending or descending order.

Available options:

ascending,

descending

limit

integer

default: 100

Limit the number of calls returned.

pagination_key

string

The pagination key to continue fetching the next page of calls. Pagination key is represented by a call id here, and it's exclusive (not included in the fetched calls). The last call id from the list calls is usually used as pagination key here. If not set, will start from the beginning.

Response

200 - application/json

call_type

enum<string>

required

Type of the call. Used to distinguish between web call and phone call.

Available options:

web_call

access_token

string

required

Access token to enter the web call room. This needs to be passed to your frontend to join the call.

call_id

string

required

Unique id of the call. Used to identify in LLM websocket and used to authenticate in audio websocket.

agent_id

string

required

Corresponding agent id of this call.

call_status

enum<string>

required

Status of call.

registered: Call id issued, starting to make a call using this id.
ongoing: Call connected and ongoing.
ended: The underlying websocket has ended for the call. Either user or agent hanged up, or call transferred.
error: Call encountered error.

Available options:

registered,

ongoing,

ended,

error

metadata

object

An arbitrary object for storage purpose only. You can put anything here like your internal customer id associated with the call. Not used for processing. You can later get this field from the call object.

retell_llm_dynamic_variables

object

Add optional dynamic variables in key value pairs of string that injects into your Retell LLM prompt and tool description. Only applicable for Retell LLM.

opt_out_sensitive_data_storage

boolean

Whether this call opts out of sensitive data storage like transcript, recording, logging.

start_timestamp

integer

Begin timestamp (milliseconds since epoch) of the call. Available after call starts.

end_timestamp

integer

End timestamp (milliseconds since epoch) of the call. Available after call ends.

transcript

string

Transcription of the call. Available after call ends.

transcript_object

object[]

Transcript of the call in the format of a list of utterance, with timestamp. Available after call ends.

transcript_with_tool_calls

object[]

Transcript of the call weaved with tool call invocation and results. It precisely captures when (at what utterance, which word) the tool was invoked and what was the result. Available after call ends.

recording_url

string

Recording of the call. Available after call ends.

public_log_url

string

Public log of the call, containing details about all the requests and responses received in LLM WebSocket, latency tracking for each turntaking, helpful for debugging and tracing. Available after call ends.

latency

object

Latency tracking of the call, available after call ends. Not all fields here will be available, as it depends on the type of call and feature used.

latency.e2e

object

End to end latency (from user stops talking to agent start talking) tracking of the call. This latency does not account for the network trip time from Retell server to user frontend. The latency is tracked every time turn change between user and agent.

latency.llm

object

LLM latency (from issue of LLM call to first speakable chunk received) tracking of the call. When using custom LLM. this latency includes LLM websocket roundtrip time between user server and Retell server.

latency.llm_websocket_network_rtt

object

LLM websocket roundtrip latency (between user server and Retell server) tracking of the call. Only populated for calls using custom LLM.

latency.tts

object

Text-to-speech latency (from the triggering of TTS to first byte received) tracking of the call.

latency.knowledge_base

object

Knowledge base latency (from the triggering of knowledge base retrival to all relevant context received) tracking of the call. Only populated when using knowledge base feature for the agent of the call.

latency.s2s

object

Speech-to-speech latency (from requesting responses of a S2S model to first byte received) tracking of the call. Only populated for calls that uses S2S model like Realtime API.

disconnection_reason

enum<string>

The reason for the disconnection of the call. Read details desciption about reasons listed here at Disconnection Reason Doc.

Available options:

user_hangup,

agent_hangup,

call_transfer,

voicemail_reached,

inactivity,

machine_detected,

max_duration_reached,

concurrency_limit_reached,

no_valid_payment,

scam_detected,

error_inbound_webhook,

dial_busy,

dial_failed,

dial_no_answer,

error_llm_websocket_open,

error_llm_websocket_lost_connection,

error_llm_websocket_runtime,

error_llm_websocket_corrupt_payload,

error_frontend_corrupted_payload,

error_twilio,

error_no_audio_received,

error_asr,

error_retell,

error_unknown,

error_user_not_joined,

registered_call_timeout

call_analysis

object

Post call analysis that includes information such as sentiment, status, summary, and custom defined data to extract. Available after call ends. Subscribe to call_analyzed webhook event type to receive it once ready.

call_cost

object

Cost of the call, including all the products and their costs and discount.

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Get Call Create Retell LLM

Call (V2)

LLM

Agent

Phone Number

Knowledge Base

Voice

Account

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Custom LLM

Call (V1, Deprecated)

Authorizations

Body

Response