AI tools for coding in the terminal: agent frameworks and SDKs
Frameworks and SDKs for building agents in code. Of the 79 tools on our coding in the terminal page, 9 fit this narrower job. By pricing: 9 open source. The most-starred open repos here are Open Interpreter (68,591 stars), HyperFrames (66,201 stars), Botpress (14,956 stars). Most come from the coding (3), frameworks (3), MCP & infra (2) categories.
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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Botpress
Platform for building and deploying LLM-powered chatbots and agents, with a visual studio, integrations hub, CLI and SDK.
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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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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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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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GitHub repos (9)
| Repo | GitHub stars | Licence | Last push |
|---|---|---|---|
| Open Interpreter ↗ | 68,591 | Apache License 2.0 | 2026-10-11 |
| HyperFrames ↗ | 66,201 | — | — |
| Botpress ↗ | 14,956 | — | — |
| Munder Difflin ↗ | 8,802 | MIT | 2026-10-17 |
| Claude Agent SDK (Python) ↗ | 8,293 | — | — |
| Agent-Native (Builder.io) ↗ | 7,262 | — | 2026-10-18 |
| Open Connector ↗ | 6,031 | Apache License 2.0 | 2026-10-18 |
| OpenGAP ↗ | 2,980 | — | — |
| Pydantic Deep Agents ↗ | 1,102 | — | — |
9 repos. 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 9. The first three by GitHub stars and featured status are 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.; Botpress: Platform for building and deploying LLM-powered chatbots and agents, with a visual studio, integrations hub, CLI and SDK.
Are there free or open-source options?
Yes: 9 open source. Pricing is as each maker states it.
More from coding in the terminal
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