Comfy APIs: an overview

Last updated: June 12, 2026

This article explains the different APIs available across Comfy.

Q. What APIs does Comfy provide?

Comfy provides different APIs depending on your use case:

  • Local Server API → Run workflows through your own ComfyUI instance

  • Cloud API → Run workflows on Comfy-managed infrastructure

  • Registry API → Publish and manage custom nodes

Q. Which API should I use?

Choose based on what you're building:

  • Self-hosting / custom frontend / backend integration → Local Server API

  • Managed infrastructure / no local GPU → Cloud API

  • Publishing custom nodes → Registry API

Q. Can I run workflows through the Cloud API?

Yes.

Cloud API allows you to submit workflows and receive results without managing local GPUs.

Please note:

  • Cloud API requires a supported Comfy Cloud subscription

  • Cloud usage consumes Comfy Credits

  • Cloud API functionality may evolve over time

For details:

👉 See Comfy Docs - Development for Cloud

Q. Can I run Partner Nodes through APIs?

Yes.

Workflows using Partner Nodes require authentication when called programmatically.

For implementation details and API references:

👉 See Comfy Docs - Cloud API References

👉 See Comfy Docs - Partner Nodes

Q. Where can I learn more?