The identity and technical contract details declared by the specification.
ErrorVellumValue
object
A value representing an Error.
2 properties
2 required
EntityStatus
string
ACTIVE - Active ARCHIVED - Archived PENDINGDELETION - Pending Deletion
workflow.execution.snapshottedEnum
string
ReleaseReviewReviewer
object
2 properties
1 required
SearchResultsVellumValue
object
A value representing Search Results.
2 properties
2 required
WorkflowModelProviderDependency
object
4 properties
3 required
ChatHistoryVellumValue
object
A value representing Chat History.
2 properties
2 required
ArrayVellumValue
object
A value representing an array of Vellum variable values.
2 properties
2 required
WorkflowExecutionActual
object
4 properties
3 required
VellumVariableType
string
STRING - STRING NUMBER - NUMBER JSON - JSON CHATHISTORY - CHATHISTORY SEARCHRESULTS - SEARCHRESULTS ERROR - ERROR ARRAY - ARRAY FUNCTIONCALL - FUNCTIONCALL AUD…
NodeParentContext
object
5 properties
3 required
PatchedWorkflowReleaseTagUpdateRequest
object
1 property
WorkflowDeploymentReleaseWorkflowDeployment
object
2 properties
2 required
WorkflowIntegrationDependency
object
4 properties
3 required
WorkflowExecutionUsageCalculationError
object
2 properties
2 required
workflow.execution.rejectedEnum
string
NodeExecutionFulfilledBody
object
5 properties
2 required
PaginatedWorkflowReleaseTagReadList
object
4 properties
VideoChatMessageContent
object
A video value that is used in a chat message.
2 properties
2 required
UpdateActiveWorkspaceResponse
object
3 properties
2 required
ExecutionImageVellumValue
object
A base Vellum primitive value representing an image.
4 properties
4 required
WorkflowExecutionSnapshottedBody
object
3 properties
2 required
SlimWorkflowDeployment
object
A subset of a Workflow Deployment's full details.
10 properties
7 required
SearchResultMeta
object
1 property
ReleaseReviewState
string
APPROVED - Approved CHANGESREQUESTED - Changes Requested COMMENTED - Commented
AudioVellumValue
object
A base Vellum primitive value representing audio.
2 properties
2 required
node.executionEnum
string
VellumSdkErrorCodeEnum
string
INVALIDWORKFLOW - INVALIDWORKFLOW INVALIDINPUTS - INVALIDINPUTS INVALIDOUTPUTS - INVALIDOUTPUTS INVALIDSTATE - INVALIDSTATE INVALIDCODE - INVALIDCODE INVALIDTE…
WorkflowInitializationError
object
Workflow initialization error.
2 properties
2 required
ArrayChatMessageContent
object
A list of chat message content items.
2 properties
2 required
workflow.execution.resumedEnum
string
ChatMessageRole
string
SYSTEM - System ASSISTANT - Assistant USER - User FUNCTION - Function
node.execution.rejectedEnum
string
NodeExecutionResumedEvent
object
9 properties
6 required
WorkflowExecutionStreamingEvent
object
9 properties
6 required
NodeExecutionPausedEvent
object
9 properties
6 required
WorkflowExecutionViewOnlineEvalMetricResult
object
3 properties
3 required
node.execution.pausedEnum
string
WorkflowDeploymentEventExecutionsResponse
object
2 properties
2 required
ExecuteWorkflowDeploymentStreamRequest
object
The request to execute a Workflow Deployment stream.
6 properties
ReleaseTagRelease
object
2 properties
2 required
ExecutionAudioVellumValue
object
A base Vellum primitive value representing audio.
4 properties
4 required
V1WorkflowDeploymentsIdReleaseTagsGetParametersSource
string
node.execution.resumedEnum
string
WorkflowExecutionUsageCalculationErrorCodeEnum
string
UNKNOWN - UNKNOWN DEPENDENCIESFAILED - DEPENDENCIESFAILED NOUSAGECALCULATED - NOUSAGECALCULATED INTERNALSERVERERROR - INTERNALSERVERERROR
NodeExecutionPausedBody
object
1 property
1 required
WorkflowExecutionSpan
object
8 properties
7 required
VellumImage
object
2 properties
1 required
WorkflowExecutionFulfilledEvent
object
9 properties
6 required
IntegrationTriggerContext
object
5 properties
2 required
SpanLink
object
3 properties
3 required
StringVellumValue
object
A value representing a string.
2 properties
2 required
ExecutionErrorVellumValue
object
A value representing an Error.
4 properties
4 required
VellumCodeResourceDefinition
object
4 properties
3 required
SlimReleaseReview
object
4 properties
4 required
BaseOutput
object
3 properties
1 required
WorkflowExecutionPausedBody
object
2 properties
2 required
NodeExecutionFulfilledEvent
object
9 properties
6 required
WorkflowExecutionResumedBody
object
1 property
1 required
NodeExecutionLogEvent
object
9 properties
6 required
node.execution.logEnum
string
WorkflowExecutionRejectedEvent
object
9 properties
6 required
ExecutionFunctionCallVellumValue
object
A value representing a Function Call.
4 properties
4 required
workflow.execution.streamingEnum
string
MLModelUsageWrapper
object
2 properties
2 required
VellumDocument
object
2 properties
1 required
Price
object
2 properties
2 required
node.execution.fulfilledEnum
string
VideoVellumValue
object
A base Vellum primitive value representing a video.
2 properties
2 required
PdfSearchResultMetaSource
object
The source of a search result from a PDF document.
3 properties
3 required
ExecutionVideoVellumValue
object
A base Vellum primitive value representing a video.
4 properties
4 required
WorkflowEventExecutionRead
object
12 properties
11 required
WorkflowDeploymentReleaseWorkflowVersion
object
The workflow version associated with a workflow deployment release.
4 properties
3 required
workflow.execution.pausedEnum
string
PaginatedSlimWorkflowDeploymentList
object
4 properties
SpanLinkTypeEnum
string
TRIGGEREDBY - TRIGGEREDBY PREVIOUSSPAN - PREVIOUSSPAN ROOTSPAN - ROOTSPAN
NodeExecutionInitiatedEvent
object
9 properties
6 required
WorkflowExecutionFulfilledBody
object
5 properties
2 required
ExecutionStringVellumValue
object
A value representing a string.
4 properties
4 required
VellumVariableExtensions
object
A set of fields with additional properties for use in Vellum Variables.
3 properties
ExternalParentContext
object
4 properties
2 required
NodeExecutionLogBody
object
4 properties
3 required
FunctionCall
object
The final resolved function call value.
3 properties
2 required
JsonVellumValue
object
A value representing a JSON object.
2 properties
2 required
StringChatMessageContent
object
A string value that is used in a chat message.
2 properties
2 required
VellumError
object
3 properties
2 required
ReleaseReleaseTag
object
2 properties
2 required
FunctionCallChatMessageContentValue
object
The final resolved function call value.
3 properties
2 required
ExternalInputDescriptor
object
4 properties
2 required
node.execution.initiatedEnum
string
DocumentChatMessageContent
object
A document value that is used in a chat message.
2 properties
2 required
WorkflowEventErrorRawData
WorkflowExecutionEventErrorCode
string
WORKFLOWINITIALIZATION - WORKFLOWINITIALIZATION WORKFLOWCANCELLED - WORKFLOWCANCELLED WORKFLOWTIMEOUT - WORKFLOWTIMEOUT PROVIDERCREDENTIALSUNAVAILABLE - PROVID…
ReleaseEnvironment
object
3 properties
3 required
UnitEnum
string
USD - USD
DocumentVellumValue
object
A base Vellum primitive value representing a document.
2 properties
2 required
NumberVellumValue
object
A value representing a number.
2 properties
2 required
APIRequestParentContext
object
7 properties
2 required
ExecutionSearchResultsVellumValue
object
A value representing Search Results.
4 properties
4 required
VellumSdkError
object
3 properties
2 required
InvokedPort
object
1 property
1 required
SeverityEnum
string
DEBUG - DEBUG INFO - INFO WARNING - WARNING ERROR - ERROR
WorkflowReleaseTagRead
object
4 properties
4 required
ExecutionDocumentVellumValue
object
A base Vellum primitive value representing a document.
4 properties
4 required
V1WorkflowDeploymentsGetParametersStatus
string
FunctionCallVellumValue
object
A value representing a Function Call.
2 properties
2 required
NodeExecutionInitiatedBody
object
2 properties
2 required
VellumVariable
object
7 properties
3 required
CodeResourceDefinition
object
The definition of a resource defined in code.
2 properties
2 required
WorkflowReleaseTagEnum
string
ImageVellumValue
object
A base Vellum primitive value representing an image.
2 properties
2 required
IntegrationName
string
SLACK - Slack NOTION - Notion GOOGLE - Google CALENDLY - Calendly CANVA - Canva CLICKUP - ClickUp CODA - Coda HUBSPOT - Hubspot INTERCOM - Intercom INSTAGRAM -…
WorkflowExecutionUsageCalculationFulfilledBody
object
2 properties
2 required
ApiVersionEnum
string
2024-10-25 - V20241025 2025-07-30 - V20250730
NodeExecutionStreamingBody
object
2 properties
2 required
WorkflowExecutionSnapshottedEvent
object
9 properties
6 required
NodeExecutionRejectedEvent
object
9 properties
6 required
ReleaseTagSource
string
SYSTEM - System USER - User
NodeExecutionSpan
object
8 properties
7 required
node.execution.streamingEnum
string
PaginatedWorkflowDeploymentReleaseList
object
4 properties
MLModelHostingInterface
string
ANTHROPIC - Anthropic AWSBEDROCK - AWS Bedrock AZUREAIFOUNDRY - Azure AI Foundry AZUREOPENAI - Azure OpenAI BASETEN - BaseTen CEREBRAS - Cerebras COHERE - Cohe…
VellumErrorCodeEnum
string
INVALIDREQUEST - INVALIDREQUEST INVALIDINPUTS - INVALIDINPUTS PROVIDERERROR - PROVIDERERROR PROVIDERCREDENTIALSUNAVAILABLE - PROVIDERCREDENTIALSUNAVAILABLE INT…
WorkflowSandboxParentContext
object
7 properties
5 required
VellumVideo
object
2 properties
1 required
WorkflowParentContext
object
5 properties
3 required
ExecutionChatHistoryVellumValue
object
A value representing Chat History.
4 properties
4 required
WorkflowExecutionUsageResult
object
3 properties
ErrorDetailResponse
object
1 property
1 required
ExecutionThinkingVellumValue
object
A value representing Thinking mode output.
4 properties
4 required
VellumWorkflowExecutionEvent
ChatMessage
object
5 properties
1 required
ReleaseCreatedBy
object
3 properties
2 required
WorkflowDeploymentHistoryItem
object
8 properties
7 required
AudioChatMessageContent
object
An audio value that is used in a chat message.
2 properties
2 required
WorkflowDeploymentDisplayData
object
Workflow Deployment display data
1 property
NodeExecutionResumedBody
object
1 property
1 required
WorkflowExecutionRejectedBody
object
3 properties
2 required
WorkflowEventError
object
4 properties
2 required
ExecutionJsonVellumValue
object
A value representing a JSON object.
4 properties
4 required
workflow.execution.fulfilledEnum
string
WorkflowReleaseTagWorkflowDeploymentHistoryItem
object
2 properties
2 required
PromptReleaseTagEnum
string
NodeExecutionRejectedBody
object
3 properties
2 required
FunctionCallChatMessageContent
object
A function call value that is used in a chat message.
2 properties
2 required
SlimWorkflowExecutionRead
object
10 properties
10 required
WorkflowExecutionInitiatedEvent
object
9 properties
6 required
ImageChatMessageContent
object
An image value that is used in a chat message.
2 properties
2 required
SearchResult
object
5 properties
4 required
ThinkingVellumValue
object
A value representing Thinking mode output.
2 properties
2 required
WorkflowDeploymentRelease
object
9 properties
8 required
VellumAudio
object
2 properties
1 required
SearchResultDocument
object
4 properties
1 required
WorkflowExecutionResumedEvent
object
9 properties
6 required
WorkflowSandboxEnum
string
PromptDeploymentParentContext
object
12 properties
8 required
MLModelUsage
object
7 properties
WorkflowDeploymentRead
object
A Workflow Deployment's full details.
12 properties
8 required
WorkflowExecutionInitiatedBody
object
3 properties
2 required
workflow.execution.initiatedEnum
string
ExecutionNumberVellumValue
object
A value representing a number.
4 properties
4 required
WorkflowExecutionSpanAttributes
object
2 properties
2 required
NodeExecutionSpanAttributes
object
3 properties
2 required
ArrayChatMessageContentItem
ScheduledTriggerContext
object
5 properties
2 required
NodeExecutionStreamingEvent
object
9 properties
6 required
WorkflowExecutionStreamingBody
object
2 properties
2 required
workflow.executionEnum
string
WorkflowDisplayIcon
object
Icon to be used alongside a Workflow
2 properties
ExecutionArrayVellumValue
object
A value representing an array of Vellum variable values.
4 properties
4 required
WorkflowExecutionPausedEvent
object
9 properties
6 required
WorkflowDeploymentParentContext
object
12 properties
8 required
ApiActorTypeEnum
string
ANONYMOUS - ANONYMOUS WORKSPACEAPIKEY - WORKSPACEAPIKEY ENVIRONMENTAPIKEY - ENVIRONMENTAPIKEY JWT - JWT SERVICETOKEN - SERVICETOKEN
The full machine-readable OpenAPI contract behind this narrative.
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