Skip to content
AI.info

tools

Phidata Review 2026 — Simplest Open-Source AI Agent Framework

Phidata is a free open-source Python framework for building AI agents with memory, knowledge, and tools in under 20 lines of code. The simplest LangChain alternative.

Phidata Review 2026 — Simplest Open-Source AI Agent Framework

Agno SDK lets developers build agents, multi-agent teams, and multi-step workflows with tools, memory, knowledge bases, structured outputs, multimodal inputs, guardrails, and human approval steps. AgentOS turns these systems into APIs and MCP servers with sessions, tracing, scheduling, authorization, and observability.

It is used for product copilots, research systems, support agents, data workflows, and internal automation. The runtime is free and open source; the hosted control plane has paid plans, while users provide their own cloud, databases, compute, and model-provider costs.

Features

  • Build agents, multi-agent teams, and step-by-step workflows
  • Connect agents to 100+ applications and toolkits
  • Add memory, knowledge bases, learning, and session management
  • Generate structured outputs validated with Pydantic
  • Process images, audio, and files as multimodal inputs
  • Deploy agents through AgentOS as APIs and MCP servers
  • Use JWT authorization, service accounts, RBAC, tracing, and audit logs
  • Open source under the Apache-2.0 license

Use cases

  • Build customer-support agents that use product and account data
  • Create research teams that combine findings from multiple agents
  • Automate invoice processing with validation and approval steps
  • Develop product copilots that call business tools
  • Serve internal agents through APIs, MCP, Slack, or other interfaces

Pros

    Cons

      Pricing

      Starting price
      Free
      Pricing checked
      2026-09-19

      Free

      $0/month

      • Build your agent platform
      • Unlimited usage & retention
      • Run it anywhere, at any scale
      • Control plane for your local AgentOS
      • Community support & forums

      Pro

      $150/month

      • Everything in Free
      • Control plane for live AgentOS
      • 1 live AgentOS connection
      • 3 team seats
      • Basic role-based access control
      • Email support

      Enterprise

      Custom

      • Everything in Pro
      • End-user management and audit logs
      • Custom RBAC with per-resource scoping
      • Slack Connect
      • Support & service SLA
      • Security reviews and compliance
      Official website