Agent frameworks and SDKs for terminal coding
Frameworks and SDKs for building agents in code. Of the 128 tools on our coding in the terminal page, 17 fit this narrower job. By pricing: 16 open source, 1 free or freemium. The most-starred open repos here are Pi (116,073 stars), Open Interpreter (68,591 stars), HyperFrames (66,201 stars). Most come from the coding (5), frameworks (3), agent infra (2) categories.
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Pi
Minimal, extensible open-source terminal coding agent and agent toolkit from Earendil, with a multi-provider LLM API, TypeScript SDK, RPC mode and installable extensions, skills and themes.
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Open Interpreter
Terminal coding agent forked from OpenAI's Codex and tuned for low-cost and open-weight models, with switchable harness modes that imitate tools like Claude Code.
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HyperFrames
HeyGen's open-source framework that renders HTML, CSS and animations into deterministic MP4 videos, usable from a CLI or by coding agents through skills.
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opencodex
A local provider proxy that lets OpenAI Codex (CLI, app and SDK) and Claude Code run on other model providers such as Claude, Gemini, Grok, DeepSeek or local Ollama models.
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Botpress
Platform for building and deploying LLM-powered chatbots and agents, with a visual studio, integrations hub, CLI and SDK.
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ai-memory
Fabio Akita's open-source long-term memory layer for coding agents: one Rust binary that keeps plain-markdown project memory and typed handoffs shared across 20+ harnesses such as Claude Code, Codex, Cursor and Gemini CLI, so you can switch agents, machines or teammates without re-explaining the project.
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Munder Difflin
Free, open-source harness that runs Claude Code, Codex, Gemini CLI and other terminal agents together like an office.
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Claude Agent SDK (Python)
Anthropic's Python SDK for building agents on Claude Code's agent loop, with the CLI bundled, custom tools and hooks.
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ZCode
ZCode is Z.ai's open-source AI coding workspace and official harness for GLM-5.3, with a desktop app, web interface and terminal agent that run multiple agents on long goals, plus control from WeChat, Feishu or Telegram.
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Agent-Native (Builder.io)
Open-source TypeScript framework for building agents that come with their own app UI; each action is shared by the UI, agent, API, CLI, MCP and A2A.
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Open Connector
Open-source auth gateway connecting SaaS apps to AI agents via SDK, CLI and MCP.
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OpenGAP
Framework-agnostic, git-native standard and CLI for defining AI agents so a repository becomes a runnable agent.
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LCU
Brings the computer-use runtime from the ChatGPT desktop app to Claude Code, Codex CLI and Pi, so any agent harness can see and control your desktop without a Codex sign-in.
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Pydantic Deep Agents
Self-hosted terminal AI assistant and Python framework on Pydantic AI, with tool calling, sandboxed execution, multi-agent teams and checkpoints.
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AgentEnv Framework
AgentEnv Framework is Scale AI's open-source Python SDK and CLI for building RL environments for agents: containerized worlds with realistic apps and data behind an MCP gateway, plus tasks (as DAGs) that grade any agent in any sandbox.
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OpenGCUA
Open stack from Tongyi Lab's MAI-UI team for generalist computer-use agents that combine GUI clicks, accessibility trees, terminal commands, APIs and code: an OSWorld harness, a macOS real-device harness, a cross-device SDK and published task runs of eight frontier models.
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SEAL
SEAL is an MCP server (npx sealnet-mcp) that lets AI agents send and request files and secrets with end-to-end encryption. After pairing, the default delivery route sends the file to the user's SEAL inbox and returns a handle to the model. Also has a browser app, CLI and SDK; free up to 1 GB per seal.
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GitHub repos (16)
| Repo | GitHub stars | Licence | Last push |
|---|---|---|---|
| 116,073 | MIT | 2026-10-21 | |
| 68,591 | Apache License 2.0 | 2026-10-11 | |
| 66,201 | Apache License 2.0 | 2026-10-21 | |
| 17,682 | — | 2026-10-21 | |
| 14,956 | MIT | 2026-10-19 | |
| 11,877 | MIT | 2026-10-21 | |
| 8,802 | MIT | 2026-10-19 | |
| 8,293 | MIT | 2026-10-21 | |
| 8,014 | — | 2026-10-20 | |
| 7,262 | — | 2026-10-21 | |
| 6,031 | Apache License 2.0 | 2026-10-21 | |
| 2,980 | — | 2026-07-02 | |
| 1,913 | — | 2026-10-21 | |
| 1,102 | — | 2026-10-06 | |
| 330 | — | 2026-10-21 |
Top 15 of 16 by stars. Stars and licence come from each repo, checked when the listing was last verified.
FAQ
What are the best AI tools for coding in the terminal focused on agent frameworks and SDKs?
We list 17. The first three by GitHub stars and featured status are Pi: Minimal, extensible open-source terminal coding agent and agent toolkit from Earendil, with a multi-provider LLM API, TypeScript SDK, RPC mode and installable extensions, skills and themes.; Open Interpreter: Terminal coding agent forked from OpenAI's Codex and tuned for low-cost and open-weight models, with switchable harness modes that imitate tools like Claude Code.; HyperFrames: HeyGen's open-source framework that renders HTML, CSS and animations into deterministic MP4 videos, usable from a CLI or by coding agents through skills.
Are there free or open-source options?
Yes: 16 open source, 1 free or freemium. Pricing is as each maker states it.
More from coding in the terminal
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