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Retell AI Update Call API

The Update Call API from Retell AI — 1 operation(s) for update call.

Retell AI Update Call API is one of 78 APIs that Retell AI publishes on the APIs.io network, described by a machine-readable OpenAPI specification and an AsyncAPI event-driven specification.

Tagged areas include Update Call. The published artifact set on APIs.io includes an OpenAPI specification, API documentation, an AsyncAPI specification, and pricing.

This API exposes 1 operation across 1 path, and defines 14 schemas. It is described by OpenAPI 3.0.3, at version 3.0.0.

Requests are made against a single base URL, https://api.retellai.com.

1 operations 1 paths 14 schemas 1 PATCH

Metadata

The identity and technical contract details declared by the specification.

Specification
OpenAPI 3.0.3
API Version
3.0.0
Base URL
https://api.retellai.com
Authentication
HTTP Bearer
License
Resource Areas
1

Authentication & Security 1

Retell AI Update Call API declares 1 security scheme for authenticating requests. It accepts HTTP bearer tokens (string) (api_key). By default, every request must be authenticated.

  • api_key — Authentication header containing API key (find it in dashboard). The format is "Bearer YOURAPIKEY"

Paths & Operations 1

Across 1 path, the API surfaces 1 operation — 1 PATCH. Each is listed below with its method, path, parameters, and response codes.

Update Call 1
PATCH
/v2/update-call/{call_id}
Update metadata and sensitive data storage settings for an existing call.
updateCallMetadata 1 param body → 200400401422500

Schemas 14

The contract defines 14 schemas that model the data the API accepts and returns. The most detailed are V2CallBase (31 properties), CallLatency (8 properties), NodeTransitionUtterance (6 properties), ToolCallInvocationUtterance (5 properties). Each schema is shown below with its type and property counts.

CallLatency
object
8 properties
ToolCallResultUtterance
object
4 properties 3 required
DisconnectionReason
string
ToolCallInvocationUtterance
object
5 properties 4 required
ProductCost
object
4 properties 2 required
CallAnalysis
object
5 properties
V2WebCallResponse
V2CallBase
object
31 properties 4 required
Utterance
object
3 properties 3 required
UtteranceOrToolCall
DTMFUtterance
object
2 properties 2 required
V2PhoneCallResponse
NodeTransitionUtterance
object
6 properties 5 required
V2CallResponse

Specification

The full machine-readable OpenAPI contract behind this narrative.

Source

retell-ai-update-call-api-openapi.yml Raw ↑

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