# System One API
> Hosted decision-layer API for AI agents (TypeScript SDK)
- URL: https://system-one.dev/en/api
- Visit (tracked): https://promoteindex.com/go/system-one-api
- Category: ai-agent
- Built with: unspecified
- Pricing: freemium
- Votes: 0
- Tested by PromoteIndex: no. Not tested by PromoteIndex yet. Use at your own risk.
- Listed: 2026-10-23
- Tags: ai-agents, api, typescript, sdk
- Repo: https://github.com/ziyu/system-one-sdk
System One API is a hosted decision layer for AI agents: one endpoint to route, judge, and orchestrate model calls. Open-source TypeScript SDK @system-one-ai/core (GitHub stars≈2).
Listing: https://promoteindex.com/p/system-one-api

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