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AI agent tools for anthropic API
Short answer: Our top pick for anthropic API: axonhub, with the highest AgentPick Score (80/100) among tools tagged "anthropic-api". Runners-up: ccs (76) and Rapid-MLX (72). Compare what each does, its license and how recently it was updated below.
| # | Tool | What it does | Score | Stars | License | Updated |
|---|---|---|---|---|---|---|
| #1 | axonhub | ⚡️ Open-source AI Gateway — Use any SDK to call 100+ LLMs. Built-in failover, load balancing, cost control & end-to-end tracing. | 80/100 | ★ 5.4k | Apache-2.0 | 14 Oct 2026 |
| #2 | ccs | Switch between Claude accounts, Gemini, Copilot, OpenRouter (300+ models) via CLIProxyAPI OAuth proxy. Visual dashboard, remote proxy support, WebSear… | 76/100 | ★ 2.9k | MIT | 13 Oct 2026 |
| #3 | Rapid-MLX | Rapid-MLX is an open-source (Apache 2.0) OpenAI- and Anthropic-compatible LLM inference server for Apple Silicon, built on MLX, focused on reliable to… | 72/100 | ★ 4k | See repo | 14 Oct 2026 |
| #4 | vllm-mlx | High-performance OpenAI and Anthropic compatible LLM inference server for Apple Silicon. Native MLX, continuous batching, multimodal models, MCP tool … | 71/100 | ★ 1.6k | Apache-2.0 | 12 Oct 2026 |
| #5 | smg | Engine-agnostic LLM gateway in Rust. Full OpenAI & Anthropic API compatibility across vLLM, TRT-LLM, TokenSpeed, SGLang, OpenAI, Gemini & more. Indust… | 70/100 | ★ 577 | Apache-2.0 | 14 Oct 2026 |
| #6 | big-AGI | AI suite powered by state-of-the-art models and providing advanced AI/AGI functions. Includes AI personas, AGI functions, world-class Beam multi-model… | 69/100 | ★ 7.1k | MIT | 13 Oct 2026 |
| #7 | mlx-serve | Native LLM inference server for Apple Silicon. OpenAI + Anthropic API compatible. No Python. Zig backend, Swift frontend macOS app with chat, music, v… | 69/100 | ★ 1.9k | See repo | 14 Oct 2026 |
| #8 | vmlx | vMLX - Use MLX models easily - JANGQ (GGUF for MLX) - Not dependant on mlx_vlm | 67/100 | ★ 888 | Apache-2.0 | 14 Oct 2026 |
| #9 | mlxstudio | MLX Studio - Easiest way to run LLM's on your Mac. All in one engine. | 61/100 | ★ 982 | See repo | 14 Oct 2026 |
| #10 | NeuroAPI | NeuroAPI: российский AI API для Codex CLI и Claude Code — безопасные one-click установщики для Windows и macOS. | 38/100 | ★ 1.3k | MIT | 3 Oct 2026 |
| #11 | kaggle-tpu-lab | Frontier-class open models on a free Kaggle TPU v5e-8: GLM-5.3-Flash 320B MoE (~165 tok/s, our own JAX engine) and Qwen3.8-27B bf16 (~130 tok/s), 262k… | 32/100 | ★ 637 | MIT | 6 Oct 2026 |
| #12 | ccflare | The ultimate CC proxy | 29/100 | ★ 1.1k | MIT | 19 Apr 2026 |
| #13 | ai-weekend-builds | AI projects to build in a weekend. For developers: requires Python or Node.js, an Anthropic API key, and comfort with the terminal. Starter code and R… | 28/100 | ★ 639 | See repo | 6 Oct 2026 |
Source: each project's public GitHub repository (description, stars, license, last push). Listed tools aren't tested or ranked by AgentPick.
How to choose
- Check which models and providers it supports.
- Prefer tools that show diffs and ask before running commands.
- Look for recent commits: coding agents change fast.
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