Vellum AI Execute Workflow Async API is one of 23 APIs that Vellum AI publishes on the APIs.io network, described by a machine-readable OpenAPI specification.
Tagged areas include Execute Workflow Async. The published artifact set on APIs.io includes an OpenAPI specification.
This API exposes
1 operation
across 1 path,
and defines 38 schemas.
It is described by OpenAPI 3.2.0, at version 1.0.0.
Requests are made against 3 base URLs: https://predict.vellum.ai, https://api.vellum.ai, https://documents.vellum.ai.
1 operations1 paths38 schemas1 POST
Metadata
The identity and technical contract details declared by the specification.
Specification
OpenAPI 3.2.0
API Version
1.0.0
Base URL
https://api.vellum.ai
Authentication
API Key
Resource Areas
1
Authentication & Security 1
Vellum AI Execute Workflow Async API declares
1 security scheme
for authenticating requests.
An API key is passed in the header as X-API-KEY (default).
Paths & Operations 1
Across 1 path, the API surfaces 1 operation — 1 POST. Each is listed below with its method, path, parameters, and response codes.
Execute Workflow Async 1
POST
/v1/execute-workflow-async
Execute Workflow Async
execute-workflow-async2 paramsbody→ 200400404500
Schemas 38
The contract defines 38 schemas that model the data the API accepts and returns. The most detailed are ExecuteWorkflowAsyncRequest (7 properties), ChatMessageRequest (5 properties), WorkflowRequestChatHistoryInputRequest (3 properties), FunctionCallChatMessageContentValueRequest (3 properties). Each schema is shown below with its type and property counts.
DocumentChatMessageContentRequest
object
A document value that is used in a chat message.
2 properties2 required
ExecuteWorkflowAsyncRequest
object
The request to execute a Workflow Deployment asynchronously.
7 properties1 required
ArrayChatMessageContentRequest
object
A list of chat message content items.
2 properties2 required
StringChatMessageContentRequest
object
A string value that is used in a chat message.
2 properties2 required
VellumAudioRequest
object
2 properties1 required
WorkflowRequestImageInputRequest
object
The input for an image variable in a Workflow.
3 properties3 required
ChatMessageRole
string
SYSTEM - System ASSISTANT - Assistant USER - User FUNCTION - Function
AudioChatMessageContentRequest
object
An audio value that is used in a chat message.
2 properties2 required
ChatHistoryEnum
string
WorkflowRequestInputRequest
WorkflowRequestAudioInputRequest
object
The input for an audio variable in a Workflow.
3 properties3 required
ExecuteWorkflowStreamErrorResponse
object
1 property1 required
ArrayEnum
string
ArrayChatMessageContentItemRequest
ExecuteWorkflowAsyncResponse
object
The response from an async Workflow Deployment execution.
1 property1 required
FunctionCallEnum
string
VellumVideoRequest
object
2 properties1 required
WorkflowRequestJSONInputRequest
object
The input for a JSON variable in a Workflow.
3 properties3 required
VideoEnum
string
NumberEnum
string
WorkflowRequestVideoInputRequest
object
The input for a video variable in a Workflow.
3 properties3 required
VellumDocumentRequest
object
2 properties1 required
FunctionCallChatMessageContentValueRequest
object
The final resolved function call value.
3 properties2 required
ImageEnum
string
VellumImageRequest
object
2 properties1 required
WorkflowRequestStringInputRequest
object
The input for a string variable in a Workflow.
3 properties3 required
JsonEnum
string
ChatMessageContentRequest
ChatMessageRequest
object
5 properties1 required
AudioEnum
string
ImageChatMessageContentRequest
object
An image value that is used in a chat message.
2 properties2 required
StringEnum
string
WorkflowRequestNumberInputRequest
object
The input for a number variable in a Workflow.
3 properties3 required
DocumentEnum
string
WorkflowRequestChatHistoryInputRequest
object
The input for a chat history variable in a Workflow.
3 properties3 required
FunctionCallChatMessageContentRequest
object
A function call value that is used in a chat message.
2 properties2 required
WorkflowRequestDocumentInputRequest
object
The input for a document variable in a Workflow.
3 properties3 required
VideoChatMessageContentRequest
object
A video value that is used in a chat message.
2 properties2 required
Specification
The full machine-readable OpenAPI contract behind this narrative.
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