Vapi Eval API is one of 15 APIs that Vapi publishes on the APIs.io network, described by a machine-readable OpenAPI specification and an AsyncAPI event-driven specification.
This API exposes 6 JSON Schema definitions.
Tagged areas include Eval. The published artifact set on APIs.io includes an OpenAPI specification, API documentation, an AsyncAPI specification, and 6 JSON Schemas.
This API exposes 9 operations across 4 paths, and defines 324 schemas. It is described by OpenAPI 3.0.0, at version 1.0.
Requests are made against a single base URL, https://api.vapi.ai.
9 operations
4 paths
324 schemas
2 DELETE4 GET1 PATCH2 POST
Metadata
The identity and technical contract details declared by the specification.
Authentication & Security 1
Vapi Eval API declares
1 security scheme
for authenticating requests.
It accepts HTTP bearer tokens (Bearer) (bearer).
By default, every request must be authenticated.
bearer— Retrieve your API Key from [Dashboard](dashboard.vapi.ai).
Paths & Operations 9
Across 4 paths, the API surfaces 9 operations — 2 DELETE, 4 GET, 1 PATCH, 2 POST. Each is listed below with its method, path, parameters, and response codes.
Eval 9
Eval endpoints.
POST
/eval
Create Eval
GET
/eval
List Evals
PATCH
/eval/{id}
Update Eval
DELETE
/eval/{id}
Delete Eval
GET
/eval/{id}
Get Eval
DELETE
/eval/run/{id}
Delete Eval Run
GET
/eval/run/{id}
Get Eval Run
POST
/eval/run
Create Eval Run
GET
/eval/run
List Eval Runs
Schemas 324
The contract defines 324 schemas that model the data the API accepts and returns. The most detailed are AssistantOverrides (33 properties), CreateAssistantDTO (31 properties), ArtifactPlan (17 properties), GladiaTranscriber (16 properties). Each schema is shown below with its type and property counts.
CreateRunpodCredentialDTO
object
3 properties
2 required
GoogleVoicemailDetectionPlan
object
4 properties
1 required
ElevenLabsTranscriber
object
8 properties
1 required
ChatEvalAssistantMessageMockToolCall
object
2 properties
1 required
CreateSlackSendMessageToolDTO
object
3 properties
1 required
EvalRun
object
15 properties
12 required
CreateGoHighLevelCalendarAvailabilityToolDTO
object
3 properties
1 required
AssistantOverrides
object
33 properties
ElevenLabsPronunciationDictionaryLocator
object
2 properties
2 required
AnalysisPlan
object
6 properties
FallbackCartesiaTranscriber
object
3 properties
1 required
WorkflowCustomModel
object
8 properties
3 required
FallbackNeuphonicVoice
object
7 properties
3 required
SonioxTranscriber
object
9 properties
1 required
CreateSonioxCredentialDTO
object
4 properties
2 required
CreateGoogleSheetsOAuth2AuthorizationCredentialDTO
object
3 properties
2 required
ToolCall
object
3 properties
3 required
FallbackTalkscriberTranscriber
object
3 properties
1 required
CreateTogetherAICredentialDTO
object
3 properties
2 required
CreateEvalDTO
object
4 properties
2 required
VariableExtractionAlias
object
2 properties
2 required
ChatEvalAssistantMessageEvaluation
object
3 properties
2 required
CustomerCustomEndpointingRule
object
4 properties
3 required
BothCustomEndpointingRule
object
6 properties
4 required
AnthropicThinkingConfig
object
2 properties
2 required
JsonSchema
object
9 properties
1 required
EvalRunPaginatedResponse
object
2 properties
2 required
SmallestAIVoice
object
7 properties
2 required
FallbackGladiaTranscriber
object
15 properties
1 required
BackoffPlan
object
4 properties
3 required
OpenAIVoice
object
8 properties
2 required
CreateGoHighLevelContactGetToolDTO
object
3 properties
1 required
CreateGoHighLevelCredentialDTO
object
3 properties
2 required
CreateXAiCredentialDTO
object
3 properties
2 required
CreateEmailCredentialDTO
object
3 properties
2 required
McpToolMessages
object
2 properties
1 required
EvalAnthropicModel
object
6 properties
3 required
CreateHumeCredentialDTO
object
3 properties
2 required
FallbackSesameVoice
object
5 properties
3 required
SessionCreatedHook
object
3 properties
2 required
CartesiaExperimentalControls
object
2 properties
KnowledgeBase
object
5 properties
4 required
ToolMessageFailed
object
5 properties
1 required
CreateVonageCredentialDTO
object
4 properties
3 required
Condition
object
3 properties
3 required
EvalRunTargetAssistant
object
4 properties
1 required
CreateSquadDTO
object
3 properties
1 required
WorkflowOpenAIModel
object
4 properties
2 required
CreateInworldCredentialDTO
object
3 properties
2 required
AssistantMessage
object
6 properties
1 required
StructuredDataPlan
object
4 properties
AzureBlobStorageBucketPlan
object
3 properties
2 required
StopSpeakingPlan
object
5 properties
CreateS3CredentialDTO
object
8 properties
6 required
CustomVoice
object
6 properties
2 required
HandoffDestinationDynamic
object
3 properties
1 required
SmartDenoisingPlan
object
1 property
GladiaCustomVocabularyConfigDTO
object
2 properties
1 required
FallbackCustomVoice
object
5 properties
2 required
RegexCondition
object
4 properties
2 required
OpenAIVoicemailDetectionPlan
object
4 properties
1 required
LiquidCondition
object
2 properties
2 required
CallHookCustomerSpeechTimeout
object
4 properties
2 required
CerebrasModel
object
10 properties
2 required
WorkflowAnthropicBedrockModel
object
5 properties
2 required
CreateGroqCredentialDTO
object
3 properties
2 required
OAuth2AuthenticationPlan
object
5 properties
4 required
TransferDestinationNumber
object
8 properties
2 required
UserMessage
object
11 properties
5 required
CustomerSpeechTimeoutOptions
object
3 properties
1 required
OpenAIFunctionParameters
object
3 properties
2 required
FallbackAzureSpeechTranscriber
object
5 properties
1 required
CreateWebhookCredentialDTO
object
3 properties
2 required
CreateOpenAICredentialDTO
object
3 properties
2 required
FallbackGoogleTranscriber
object
3 properties
1 required
CreateCustomLLMCredentialDTO
object
4 properties
2 required
SayHookAction
object
3 properties
1 required
FallbackElevenLabsVoice
object
15 properties
2 required
CreateApiRequestToolDTO
object
15 properties
3 required
CreateSupabaseCredentialDTO
object
4 properties
1 required
CreateSmallestAICredentialDTO
object
3 properties
2 required
MinimaxLLMModel
object
10 properties
2 required
ToolCallFunction
object
2 properties
2 required
VapiPronunciationDictionaryLocator
object
2 properties
1 required
ChatEvalToolResponseMessageMock
object
2 properties
2 required
CreateMistralCredentialDTO
object
3 properties
2 required
ToolParameter
object
2 properties
2 required
CreateCartesiaCredentialDTO
object
4 properties
2 required
CallHookAssistantSpeechInterrupted
object
2 properties
2 required
CustomTranscriber
object
3 properties
2 required
OpenAIFunction
object
4 properties
1 required
CreateEndCallToolDTO
object
3 properties
1 required
XaiModel
object
10 properties
2 required
OpenAITranscriber
object
4 properties
2 required
MessageAddHookAction
object
3 properties
2 required
CreateDtmfToolDTO
object
4 properties
1 required
OpenAIMessage
object
2 properties
2 required
AssistantMessageJudgePlanExact
object
3 properties
2 required
CreateCloudflareCredentialDTO
object
7 properties
1 required
EvalOpenAIModel
object
5 properties
3 required
FallbackPlayHTVoice
object
12 properties
2 required
SystemMessage
object
4 properties
4 required
AssistantMessageEvaluationContinuePlan
object
3 properties
SipTrunkGateway
object
7 properties
1 required
VapiSmartEndpointingPlan
object
1 property
1 required
AssemblyAITranscriber
object
16 properties
1 required
AnyscaleModel
object
10 properties
2 required
FallbackLMNTVoice
object
6 properties
2 required
CreatePerplexityAICredentialDTO
object
3 properties
2 required
SbcConfiguration
object
RegexOption
object
2 properties
2 required
TransferFallbackPlan
object
2 properties
1 required
CustomEndpointingModelSmartEndpointingPlan
object
2 properties
1 required
FallbackElevenLabsTranscriber
object
7 properties
1 required
VoicemailDetectionBackoffPlan
object
3 properties
CreatePlayHTCredentialDTO
object
4 properties
3 required
TavusConversationProperties
object
10 properties
DeepInfraModel
object
10 properties
2 required
CartesiaTranscriber
object
4 properties
1 required
CreateMinimaxCredentialDTO
object
4 properties
3 required
ArtifactPlan
object
17 properties
CreateGoogleCalendarCheckAvailabilityToolDTO
object
3 properties
1 required
TransferPlan
object
12 properties
1 required
WorkflowAnthropicModel
object
5 properties
2 required
FallbackSonioxTranscriber
object
8 properties
1 required
CreateLangfuseCredentialDTO
object
5 properties
4 required
CreateDeepSeekCredentialDTO
object
3 properties
2 required
UpdateEvalDTO
object
4 properties
EvalGoogleModel
object
5 properties
3 required
CreateCodeToolDTO
object
11 properties
2 required
FallbackSpeechmaticsTranscriber
object
12 properties
2 required
RecordingConsentPlanVerbal
object
6 properties
2 required
CreateDeepInfraCredentialDTO
object
3 properties
2 required
StructuredDataMultiPlan
object
2 properties
2 required
CallHookCallEnding
object
3 properties
2 required
FallbackWellSaidVoice
object
7 properties
2 required
VariableExtractionPlan
object
2 properties
CreateElevenLabsCredentialDTO
object
3 properties
2 required
CreateGladiaCredentialDTO
object
3 properties
2 required
CreateSlackOAuth2AuthorizationCredentialDTO
object
3 properties
2 required
HMACAuthenticationPlan
object
11 properties
3 required
ComplianceOverride
object
1 property
WorkflowGoogleModel
object
4 properties
2 required
AzureVoice
object
6 properties
2 required
SpeechmaticsCustomVocabularyItem
object
2 properties
1 required
CreateGoogleCalendarOAuth2AuthorizationCredentialDTO
object
3 properties
2 required
XaiVoice
object
6 properties
2 required
CreateTwilioCredentialDTO
object
6 properties
2 required
CreateBashToolDTO
object
6 properties
3 required
CartesiaGenerationConfig
object
3 properties
ChunkPlan
object
4 properties
DeveloperMessage
object
4 properties
2 required
FallbackTranscriberPlan
object
1 property
SipTrunkOutboundSipRegisterPlan
object
3 properties
ToolRejectionPlan
object
1 property
ContextEngineeringPlanPreviousAssistantMessages
object
1 property
1 required
FourierDenoisingPlan
object
6 properties
EvalRunResult
object
4 properties
4 required
SupabaseBucketPlan
object
6 properties
5 required
ExactReplacement
object
4 properties
3 required
FallbackCartesiaVoice
object
9 properties
2 required
SpkiPemPublicKeyConfig
object
3 properties
2 required
CreateAnthropicCredentialDTO
object
3 properties
2 required
FormatPlan
object
4 properties
SecurityFilterPlan
object
4 properties
LangfuseObservabilityPlan
object
6 properties
2 required
CreateMakeCredentialDTO
object
5 properties
4 required
SesameVoice
object
6 properties
3 required
CreateGoogleSheetsRowAppendToolDTO
object
3 properties
1 required
RegexReplacement
object
4 properties
3 required
PublicKeyEncryptionPlan
object
3 properties
3 required
FallbackDeepgramTranscriber
object
15 properties
1 required
CreateSipRequestToolDTO
object
6 properties
2 required
GeminiMultimodalLiveSpeechConfig
object
1 property
1 required
FallbackSmallestAIVoice
object
6 properties
2 required
LMNTVoice
object
7 properties
2 required
GroqModel
object
10 properties
2 required
CreateVoicemailToolDTO
object
4 properties
1 required
CreateEvalRunDTO
object
4 properties
2 required
CreateFunctionToolDTO
object
8 properties
1 required
SecurityFilterBase
object
CreateMcpToolDTO
object
6 properties
1 required
CreateNeuphonicCredentialDTO
object
3 properties
2 required
BucketPlan
object
5 properties
1 required
MinimaxVoice
object
14 properties
2 required
CreateTextEditorToolDTO
object
6 properties
3 required
SquadMemberDTO
object
4 properties
OpenRouterModel
object
10 properties
2 required
MessageTarget
object
2 properties
ChatEvalAssistantMessageMock
object
3 properties
1 required
CreateComputerToolDTO
object
9 properties
5 required
InworldVoice
object
9 properties
2 required
TalkscriberTranscriber
object
4 properties
1 required
CreateWellSaidCredentialDTO
object
3 properties
2 required
FallbackHumeVoice
object
7 properties
2 required
CreateSpeechmaticsCredentialDTO
object
3 properties
2 required
CustomLLMModel
object
15 properties
3 required
BearerAuthenticationPlan
object
4 properties
2 required
SuccessEvaluationPlan
object
4 properties
WellSaidVoice
object
8 properties
2 required
CreateGoogleCalendarCreateEventToolDTO
object
3 properties
1 required
CartesiaGenerationConfigExperimental
object
1 property
ContextEngineeringPlanUserAndAssistantMessages
object
1 property
1 required
CreateHandoffToolDTO
object
6 properties
1 required
FallbackTavusVoice
object
10 properties
2 required
CreateCustomCredentialDTO
object
4 properties
2 required
EvalPaginatedResponse
object
2 properties
2 required
FallbackAssemblyAITranscriber
object
15 properties
1 required
HumeVoice
object
8 properties
2 required
HandoffDestinationAssistant
object
8 properties
1 required
CreateAzureCredentialDTO
object
7 properties
2 required
GeminiMultimodalLivePrebuiltVoiceConfig
object
1 property
1 required
GroupCondition
object
3 properties
3 required
TextContent
object
3 properties
3 required
CompliancePlan
object
4 properties
Eval
object
8 properties
6 required
CreateAssemblyAICredentialDTO
object
3 properties
2 required
CloudflareR2BucketPlan
object
5 properties
1 required
FallbackDeepgramVoice
object
6 properties
2 required
VapiVoicemailDetectionPlan
object
4 properties
1 required
EvalRunTargetSquad
object
4 properties
1 required
CreateOpenRouterCredentialDTO
object
3 properties
2 required
AnthropicModel
object
11 properties
2 required
EvalCustomModel
object
8 properties
4 required
LivekitSmartEndpointingPlan
object
2 properties
1 required
SummaryPlan
object
3 properties
FallbackCustomTranscriber
object
2 properties
2 required
ChatEvalUserMessageMock
object
2 properties
2 required
CreateTransferCallToolDTO
object
4 properties
1 required
SipTrunkOutboundAuthenticationPlan
object
3 properties
ToolCallHookAction
object
3 properties
1 required
SonioxContextGeneralItem
object
2 properties
2 required
ToolMessageDelayed
object
5 properties
1 required
HandoffDestinationSquad
object
8 properties
1 required
InflectionAIModel
object
10 properties
2 required
FallbackOpenAIVoice
object
7 properties
2 required
ContextEngineeringPlanNone
object
1 property
1 required
CreateDeepgramCredentialDTO
object
4 properties
2 required
GoogleModel
object
11 properties
2 required
CreateAnyscaleCredentialDTO
object
3 properties
2 required
CreateQueryToolDTO
object
4 properties
1 required
CreateInflectionAICredentialDTO
object
3 properties
2 required
CreateGoHighLevelMCPCredentialDTO
object
3 properties
2 required
AssistantMessageJudgePlanAI
object
3 properties
2 required
KeypadInputPlan
object
3 properties
FallbackRimeAIVoice
object
11 properties
2 required
GoogleRealtimeConfig
object
5 properties
CartesiaVoice
object
10 properties
2 required
CreateAssistantDTO
object
31 properties
GcpKey
object
11 properties
11 required
CreateCustomKnowledgeBaseDTO
object
2 properties
2 required
DeepgramVoice
object
7 properties
2 required
CreateGoHighLevelCalendarEventCreateToolDTO
object
3 properties
1 required
MonitorPlan
object
5 properties
CreateStructuredOutputDTO
object
9 properties
2 required
ContextEngineeringPlanAll
object
1 property
1 required
CreateGoogleCalendarOAuth2ClientCredentialDTO
object
2 properties
1 required
ToolMessageStart
object
5 properties
1 required
FallbackXaiTranscriber
object
3 properties
1 required
SpeechmaticsTranscriber
object
13 properties
2 required
StartSpeakingPlan
object
5 properties
TogetherAIModel
object
10 properties
2 required
BackgroundSpeechDenoisingPlan
object
2 properties
CreateGoHighLevelContactCreateToolDTO
object
3 properties
1 required
TavusVoice
object
11 properties
2 required
ChatEvalSystemMessageMock
object
2 properties
2 required
AssistantMessageJudgePlanRegex
object
3 properties
2 required
ToolMessage
object
5 properties
3 required
PaginationMeta
object
9 properties
3 required
CreateGcpCredentialDTO
object
6 properties
2 required
CreateCerebrasCredentialDTO
object
3 properties
2 required
McpToolMetadata
object
1 property
ToolMessageComplete
object
6 properties
1 required
CreateTavusCredentialDTO
object
3 properties
2 required
TranscriptionEndpointingPlan
object
3 properties
FallbackXaiVoice
object
5 properties
2 required
TwilioVoicemailDetectionPlan
object
7 properties
1 required
ScorecardMetric
object
2 properties
2 required
NeuphonicVoice
object
8 properties
3 required
CallHookCustomerSpeechInterrupted
object
2 properties
2 required
CreateLmntCredentialDTO
object
3 properties
2 required
AWSStsAuthenticationPlan
object
3 properties
2 required
TransferDestinationSip
object
7 properties
2 required
RecordingConsentPlanStayOnLine
object
5 properties
2 required
Oauth2AuthenticationSession
object
3 properties
AssistantCustomEndpointingRule
object
4 properties
3 required
XaiTranscriber
object
4 properties
1 required
GladiaTranscriber
object
16 properties
1 required
PerplexityAIModel
object
10 properties
2 required
TransportConfigurationTwilio
object
4 properties
1 required
CreateSmsToolDTO
object
3 properties
1 required
CallHookFilter
object
3 properties
3 required
OpenAIModel
object
14 properties
2 required
FallbackOpenAITranscriber
object
3 properties
2 required
CreateSlackWebhookCredentialDTO
object
3 properties
2 required
CreateRimeAICredentialDTO
object
3 properties
2 required
CreateByoSipTrunkCredentialDTO
object
8 properties
1 required
VapiVoice
object
7 properties
2 required
FallbackAzureVoice
object
5 properties
2 required
AzureSpeechTranscriber
object
6 properties
1 required
TransferDestinationAssistant
object
5 properties
2 required
ChatEvalToolResponseMessageEvaluation
object
2 properties
2 required
RimeAIVoice
object
12 properties
2 required
Server
object
7 properties
CreateGoogleCredentialDTO
object
3 properties
2 required
GladiaVocabularyItemDTO
object
4 properties
1 required
ContextEngineeringPlanLastNMessages
object
2 properties
2 required
DeepgramTranscriber
object
16 properties
1 required
CreateAzureOpenAICredentialDTO
object
7 properties
5 required
DeepSeekModel
object
10 properties
2 required
FallbackVapiVoice
object
6 properties
2 required
CodeToolEnvironmentVariable
object
2 properties
2 required
AnthropicBedrockModel
object
11 properties
2 required
CustomMessage
object
3 properties
1 required
GeminiMultimodalLiveVoiceConfig
object
1 property
1 required
FallbackInworldVoice
object
8 properties
2 required
TranscriptPlan
object
3 properties
CreateScorecardDTO
object
4 properties
1 required
GoogleTranscriber
object
4 properties
1 required
AWSIAMCredentialsAuthenticationPlan
object
3 properties
3 required
PlayHTVoice
object
13 properties
2 required
FallbackPlan
object
1 property
1 required
CreateAnthropicBedrockCredentialDTO
object
4 properties
3 required
ElevenLabsVoice
object
16 properties
2 required
Specification
The full machine-readable OpenAPI contract behind this narrative.
Source
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#Eval
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