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Foundry: The foundation layer for agentic intelligence. It is listed under Development & Code on AI Registry as a free tool.
The tools below are approved listings in the same category, ordered by how closely their tags match Foundry. This is an automatic list. We have not written a researched verdict for Foundry yet, so treat it as a shortlist and check each vendor's pricing page before switching.
Built from each tool's listing. Vendors can update their own listing after claiming it.
Build an agent harness and control it end-to-end.
Strands Agents is an open source toolkit for building production AI agents in Python and TypeScript. The registry lists it under the name Harness SDK, which corresponds to the agent harness and SDK that Strands publishes at strandsagents.com. At its core is a standard Agent class, with a harness layer that returns a pl...
Event-sourced graph runtime for durable and stateful agents
activegraph is an open source Python runtime for long running AI agents from Yohei Nakajima, the creator of BabyAGI. It records everything an agent does in an append only event log and projects that log into a live graph of beliefs, tasks, evidence, decisions and dependencies. The graph becomes the agent's world: what ...
Official Aeon - the open-source autonomous AI agent framework.
Aeon is an open source framework for autonomous AI agents that run recurring work unattended. You give it a direction and it draws on a catalogue of 85 skills to carry out tasks such as priority briefs, market monitoring, pull request reviews, research digests and security scans, without approval loops. It runs on GitH...
Minimal typescript agent framework that keeps it simple and gives you control - no BS
AXAR AI is a lightweight, open source framework for building agentic applications in TypeScript. It installs from npm as a single package and aims to let developers write LLM powered agents with ordinary coding practices rather than a large set of abstractions, keeping setup minimal and leaving the developer in control...
Connect your users to their apps
Corsair is an open source integration layer that lets AI products connect to the apps their users rely on without building and maintaining each integration in house. It handles OAuth, token refresh, webhook verification, rate limits, API changes and credential isolation per tenant, so an AI agent can read from and act ...
Agent framework for the JVM.
Embabel is an agentic AI framework for the Java Virtual Machine. It is written in Kotlin with a usage model intended to feel natural from Java, and its argument is that the qualities which matter once AI becomes mission critical, namely context handling, reliability, type safety, performance, observability and integrat...