curl -fsSL https://altcode.io/install.sh | bash
Also: brew install jiayaoqijia/tap/altcode ·
go install github.com/altcode-ai/altcode/cmd/altcode@latest
Binaries: Linux · macOS · Windows — no runtime deps, single binary
Already use Claude Code or Codex CLI? Just run altcode — credentials auto-detected.
| If you have... | altcode uses it |
|---|---|
| Claude Code CLI | Claude subscription ✓ |
| Codex CLI | Codex subscription ✓ |
| ANTHROPIC_API_KEY | Anthropic API ✓ |
| OPENAI_API_KEY | OpenAI API ✓ |
| DEEPSEEK_API_KEY | DeepSeek ✓ |
| ZHIPU_API_KEY | GLM-5 ✓ |
| MOONSHOT_API_KEY | Kimi K2.5 ✓ |
| MINIMAX_API_KEY | MiniMax M2.7 ✓ |
| DASHSCOPE_API_KEY | Qwen ✓ |
| ALTLLM | altllm-basic ✓ |
| OpenRouter key | 100+ models ✓ |
| Ollama running | Local models ✓ |
| Coding CLI | altcode (Harness) | |
|---|---|---|
| Agent loop | Run once | Multi-turn + verification gates |
| Context | Send & hope | Token tracking + auto-compact + LLM summarization |
| Tools | Call & pray | Permissions + hooks + auto-verify |
| Agents | Single model | Multi-agent + mailbox IPC + roles |
| Workflow | Ad-hoc | Interview → plan → persistent execution |
| Providers | 1 vendor | 13 providers, any model |
| Model | Score | |
|---|---|---|
| DeepSeek V3 | 96% | |
| MiniMax 2.7 | 93% | |
| Qwen Coder | 93% | |
| Claude Haiku | 90% | |
| GLM-5 | 76% | |
| Kimi K2.5 | 40% |
HumanEval + SWE-bench + Terminal-Bench + Aider + FeatureBench · All via altcode
● Multi-turn agent loop (tool dispatch, 50-iter cap)
● 7 tools: read, glob, grep, ls, bash, edit, write
● MCP client (stdio + SSE) · 13 hook events
● Slash commands · Plugin system · Marketplace
● Context harness — auto-compact, LLM summarization, pre-turn compaction
● Agent harness — multi-agent, mailbox IPC, history forking, roles
● Workflow harness — interview → plan → persistent execution (ralph)
● Tool harness — permissions, hooks (command + HTTP), auto-verify
● 47 skills · OAuth login · Persistent memory · Claude Code compat
GitHub · Releases · Docs · License