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Documentation Index

Fetch the complete documentation index at: https://dev.docs.inworld.ai/llms.txt

Use this file to discover all available pages before exploring further.

Inworld’s Node.js Agent Runtime SDK is a comprehensive toolkit for building AI-powered applications.

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Graphs

At the core of the SDK is the Graph system, an interface to construct complete AI pipelines, from input to final output.

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Core Classes

Import core graph classes from @inworld/runtime/graph: 
import { 
  Graph, 
  GraphBuilder, 
  SubgraphBuilder, 
  SequentialGraphBuilder
} from '@inworld/runtime/graph';

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Nodes

Import nodes from @inworld/runtime/graph or @inworld/runtime/graph/nodes: 
import { 
  RemoteLLMChatNode,
  RemoteTTSNode,
  RemoteSTTNode,
  SubgraphNode
  // ... and other nodes ...
} from '@inworld/runtime/graph';

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Built-in Nodes

NodeDescriptionInput Type(s)Output Type(s)
KeywordMatcherNodeMatches keywords in text inputStringGraphTypes.​​MatchedKeywords
KnowledgeNodeRetrieves relevant knowledge based on input textStringGraphTypes.​KnowledgeRecords
LLMPromptBuilderNodeGenerates formatted prompts using prompt templates populated with JSON inputObjectString
MCPCallToolNodeCalls multiple tools on an MCP server in parallelGraphTypes.​ToolCallRequestGraphTypes.​ToolCallResponse
MCPListToolsNodeLists available tools from an MCP serveranyGraphTypes.​ListToolsResponse
ProxyNodeSimple data passing node for forwarding input to outputanyany
RandomCannedTextNodeSelects a random text from a list of predefined phrasesanyString
RemoteLLMChatNodeGenerates a response using a large language modelGraphTypes.​LLMChatRequestGraphTypes.​LLMChatResponse
| RemoteSTTNode | Converts speech audio to text using a speech-to-text (STT) model | GraphTypes.​Audio | String | | RemoteTTSNode | Converts text-to-speech audio using a text-to-speech (TTS) model | String
GraphTypes.​TextStream
GraphTypes.​TTSRequest | GraphTypes.​TTSOutputStream | | SubgraphNode | Executes a compiled subgraph as a node | any | any | | TextAggregatorNode | Combines text streams (chunks) into a single string | String
GraphTypes.​TextStream
GraphTypes.​LLMChatResponse | String | | TextChunkingNode | Splits text into smaller chunks | GraphTypes.​TextStream
GraphTypes.​ContentStream | GraphTypes.​TextStream | | TextClassifierNode | Analyzes text and classifies it into predefined categories using ML models | String | GraphTypes.​ClassificationResult |

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Built-in Subgraphs

Subgraphs with an asterisk (*) are experimental and subject to change.
SubgraphDescriptionInput Type(s)Output Type(s)
Intent Subgraph*Detects the intent of the text input using a built-in subgraphStringGraphTypes.MatchedIntents

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Custom Nodes

You can create your own nodes by extending the CustomNode base class.

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Components

Import components from @inworld/runtime/graph or @inworld/runtime/graph/components: 
import { 
  RemoteLLMComponent,
  RemoteKnowledgeComponent,
  RemoteEmbedderComponent,
  RemoteSTTComponent,
  RemoteTTSComponent,
  MCPClientComponent
} from '@inworld/runtime/graph';
Components are reusable configurations that can be shared across multiple nodes:

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Key Features

  • 🚀 High Performance - Optimized graph execution
  • 🧠 AI-First - Built-in LLM, memory, and knowledge systems
  • 🔧 Extensible - Custom nodes and components
  • 📊 Observable - Comprehensive telemetry and logging
  • 🌊 Streaming - Real-time audio and text processing