HarnessRouter
Verdict: One API in front of about 30 coding-agent harnesses, including Codex, Claude Code, Gemini CLI and Hermes, so a product can switch between them without rebuilding its backend. Handles sessions, streaming, files, cancellation and long-term memory. Runs as one Docker container on your own machine, or as a managed cloud. For developers building agent products.
Fit Developer
Levels show who gets value from it — many tools work for both beginners and experts.
🚀 Getting started: Run the Community Edition with docker run harnessrouter/harnessrouter, open the console at localhost:3000 and add your model keys, or sign up for HarnessRouter Cloud.
✅ Good fit if you build a product on top of coding agents and want to swap harnesses freely.
⛔ Not for you if you just want to use one coding agent yourself.
The score rates quality; this box tells you whether it suits you. How to read it
Community Edition free and open source (Apache 2.0); Cloud: Free with top-ups, Developer $20/month, Production $200/month, Scale $1,000/month · Official site: https://harnessrouter.ai/ · source checked (HTTP 200)
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HarnessRouter FAQ
Is HarnessRouter free?
Pricing as we found it: Community Edition free and open source (Apache 2.0); Cloud: Free with top-ups, Developer $20/month, Production $200/month, Scale $1,000/month (checked 2026-11-13).
Who is HarnessRouter best for?
HarnessRouter is a good fit if you build a product on top of coding agents and want to swap harnesses freely. It is not for you if you just want to use one coding agent yourself. Level: Developer.
What are good alternatives to HarnessRouter?
The highest-scored alternatives in agent builders on AI Agent Ideas are Ollama (8.7/10), Zapier Agents (8.6/10), n8n (8.4/10) and OpenRouter (8.4/10).
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