LangChain Reference home pageLangChain ReferenceLangChain Reference
  • GitHub
  • Main Docs
Deep Agents
LangChain
LangGraph
Integrations
LangSmith
LangChain
  • Browser
  • Universal
  • Hub
  • Node
  • Load
  • Serializable
  • Encoder Backed
  • File System
  • In Memory
  • Tools
LangChain Core
  • Agents
  • Caches
  • Base
  • Dispatch
  • Web
  • Manager
  • Promises
  • Chat History
  • Context
  • Base
  • Langsmith
  • Documents
  • Embeddings
  • Errors
  • Example Selectors
  • Indexing
  • Base
  • Chat Models
  • Compat
  • Event
  • Llms
  • Profile
  • Stream
  • Structured Output
  • Load
  • Serializable
  • Memory
  • Messages
  • Tool
  • Output Parsers
  • Openai Functions
  • Openai Tools
  • Outputs
  • Prompt Values
  • Prompts
  • Retrievers
  • Document Compressors
  • Runnables
  • Graph
  • Singletons
  • Stores
  • Structured Query
  • Testing
  • Tools
  • Base
  • Console
  • Log Stream
  • Run Collector
  • Tracer Langchain
  • Stream
  • Async Caller
  • Chunk Array
  • Context
  • Env
  • Event Source Parse
  • Format
  • Function Calling
  • Hash
  • Json Patch
  • Json Schema
  • Math
  • Ssrf
  • Standard Schema
  • Stream
  • Testing
  • Tiktoken
  • Types
  • Uuid
  • Vectorstores
Text Splitters
MCP Adapters
⌘I

LangChain Assistant

Ask a question to get started

Enter to send•Shift+Enter new line

Menu

LangChain
BrowserUniversalHubNodeLoadSerializableEncoder BackedFile SystemIn MemoryTools
LangChain Core
AgentsCachesBaseDispatchWebManagerPromisesChat HistoryContextBaseLangsmithDocumentsEmbeddingsErrorsExample SelectorsIndexingBaseChat ModelsCompatEventLlmsProfileStreamStructured OutputLoadSerializableMemoryMessagesToolOutput ParsersOpenai FunctionsOpenai ToolsOutputsPrompt ValuesPromptsRetrieversDocument CompressorsRunnablesGraphSingletonsStoresStructured QueryTestingToolsBaseConsoleLog StreamRun CollectorTracer LangchainStreamAsync CallerChunk ArrayContextEnvEvent Source ParseFormatFunction CallingHashJson PatchJson SchemaMathSsrfStandard SchemaStreamTestingTiktokenTypesUuidVectorstores
Text Splitters
MCP Adapters
Language
Theme
JavaScriptlangchainindexContentBlockCitation
Interfaceā—Since v1.0

Citation

Copy
interface Citation

Properties

View source on GitHub
property
citedText: string
property
endIndex: number
property
source: string
property
startIndex: number
property
title: string
property
type: "citation"
property
url: string

Annotation for citing data from a document.

Excerpt of source text being cited.

End index of the response text for which the annotation applies.

Source type for the citation.

Start index of the response text for which the annotation applies.

Source document title.

For example, the page title for a web page or the title of a paper.

Type of the content block