Harnesses & SDKs

TypeScript agent framework on a Rust runtime, where runs are checkpointed, replayed with zero LLM calls and resumed after a crash.

Policy enforcement, identity, sandboxing and reliability tooling for autonomous AI agents, installable with one pip command.

TypeScript SDK with reference implementations of Hashgraph Consensus Standards and a Registry Broker client.

Python and TypeScript SDK that gives an AI agent a phone number, with pluggable LLM, speech and telephony providers.

Visualization language and MCP server that lets AI agents create charts from editable chart specs.

Python and TypeScript toolkit for calling any frontier LLM through one interface, with tools, structured output and tracing.

TypeScript agent framework with persistent cognitive memory, multi-agent orchestration and one dispatch interface across 13 LLM providers.

Python and TypeScript SDK and REST Agent Server for building agents that work with code in local or containerized workspaces.

Self-hosted TypeScript runtime for coordinating agents with human approval gates and inspectable runs, with no telemetry.

The batteries included agent harness.

Python and TypeScript SDK that lets an agent message people on email, Slack, Discord, Telegram and other channels through one handler.

SDK for building Microsoft Teams apps and AI agents in TypeScript, C# and Python, with a CLI that scaffolds new agents.

TypeScript library that lets agents call MCP and UTCP tools by running model-written code in a sandbox.

XState library where agent logic is a state machine, so a model can only pick events the machine allows.

Framework for AI agents and multi-agent networks where a router picks which agent runs, with tools and MCP support.

Workflow SDK: Build durable, reliable, and observable apps and AI Agents in TypeScript