Mochi.js
FreeBun-native browser automation
About Mochi.js
Open-source browser automation built on Bun rather than Node, with an API designed for AI agent workflows from the ground up. Faster startup and lower memory overhead than Puppeteer or Playwright when spinning up disposable browser sessions for agents to drive — useful for any developer building autonomous web tasks at scale.
How Mochi.js compares
| Directr tier | C | S | A | A |
| Price | Free | Free / BYO API key | Pay per token | Free |
| Free tier | Free | Fully free; bring your own model | Free tier available | Free |
| API access | ✓ | ✓ | ✓ | ✓ |
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