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Letta provides an open-source agent harness, local apps, SDKs, and a managed API for agents that preserve memory, identity, skills, and experience across long-running…

Meta’s personal AI agent for multi-step tasks across the web and connected apps.

Mastra is a TypeScript framework and platform for building agents, workflows, memory, tools, evaluations, observability, and API services. Developers can run the Apache-2.0 core…

Promptfoo tests prompts, models, RAG systems, and agents through declarative evaluations, assertions, red teaming, vulnerability scanning, CI/CD workflows, and provider integrations. The MIT-licensed Community…

Dify combines visual workflows, agents, retrieval, model management, plugins, observability, application APIs, and self-hosted deployment for teams building production AI applications.

Agno provides an open-source Python framework and AgentOS runtime for agents, teams, and workflows, plus a control plane for monitoring, memory, knowledge, evaluations, approvals,…

Capacity is a unified CX automation platform for mid-market and enterprise contact centers. It combines chat, voice, SMS, email, and web AI agents with…

Observe.AI analyzes contact-center conversations to support quality management, agent coaching, analytics, automation, and customer-experience workflows. It provides reporting APIs and enterprise integrations.

Graphlit is a managed context platform for ingesting documents, audio, video, images, and web data into searchable retrieval, extraction, conversation, and agent workflows. The…

Semantic Kernel is Microsoft’s MIT-licensed SDK for building and orchestrating AI agents and multi-agent systems in C#, Python, and Java. It connects models, prompts,…

AutoGPT is an agent platform for creating, running, scheduling, and monitoring AI agents through natural-language generation, a visual builder, reusable blocks, marketplace components, APIs,…

DeepEval is an Apache 2.0 open-source Python framework for evaluating LLM applications, agents, RAG systems, and prompts. It runs locally, integrates with testing and…

TruLens is an open-source Python framework for evaluating, tracing, and comparing LLM applications and AI agents. It provides OpenTelemetry instrumentation, metrics, batch and inline…

Parloa provides an AI Agent Management Platform for enterprise customer service. Teams design, test, deploy, and monitor conversational agents across voice and messaging channels,…

Sierra helps enterprises build AI agents that resolve customer requests and complete business actions across voice, chat, SMS, WhatsApp, email, and ChatGPT. Agents connect…

Arize Phoenix is an open-source platform for tracing, evaluating, annotating, experimenting with, and debugging LLM applications and agents. Teams can run it locally, in…

Ragas is an open-source Python framework for evaluating RAG pipelines and LLM applications. It provides component and end-to-end metrics, experiment workflows, integrations with popular…

LangChain provides MIT-licensed Python and JavaScript libraries, LangGraph agent orchestration, and the LangSmith platform for tracing, evaluation, deployment, and operating production agents.

Opik by Comet traces, evaluates, tests, and optimizes LLM applications and agents. Teams can use the Apache-licensed self-hosted platform or managed cloud plans with…

Typeface is an enterprise marketing AI platform for planning, creating, personalizing, and governing branded content. It combines agents, brand context, connectors, APIs, and MCP…