comfy-remote-nodes

ComfyUI custom-node package that fetches node descriptors from an RNP/1 (Remote Node Protocol v1) server and exposes them as native V3 nodes inside ComfyUI.

The reference server lives at Comfy-Org/comfy-rnp-server (private). This client is intentionally provider-agnostic: any server that speaks RNP/1 can publish nodes through it.

Install

Clone into your ComfyUI custom_nodes/ directory:

cd ComfyUI/custom_nodes
git clone https://github.com/Comfy-Org/comfy-remote-nodes.git

(The directory name on disk doesn't matter — ComfyUI loads the package via spec_from_file_location, so comfy-remote-nodes/ is fine.)

Configure

Point the extension at one RNP server URL via env var before starting ComfyUI:

export RNP_SERVER_URL=http://127.0.0.1:9190
python main.py

If RNP_SERVER_URL is unset, the extension registers zero nodes and logs a single line — ComfyUI starts normally with no remote nodes.

What works today

• Manifest + capability handshake
• object_info fetch and dynamic V3 class generation (with ETag conditional GETs)
• Sync execute and async execute_async + poll/cancel
• Image / mask / audio / video envelope encode + decode
• Presigned upload helper for >8 MiB inputs
• Tier 3 (recent):
  • TASK_LOST detection with idempotent resubmission — survives an RNP server restart mid-task without losing the workflow
  • SERVER_BUSY / MAINTENANCE 503 envelopes treated as rate limits with Retry-After honoring and friendly per-second progress text ("Server busy, retrying in 30s...")
  • Out-of-band url_fetch for URI-only output envelopes, driven by the descriptor's remote.url_fetch policy
  • Per-poll auth refresh so long-running tasks can rotate tokens

What does not (yet)

• validate_inputs / fingerprint_inputs / check_lazy_status — the server returns 501 NOT_IMPLEMENTED; the client falls through to ComfyUI's defaults
• Multi-server config file (comfy_remote_nodes.yaml or similar) — today's setup is one server per ComfyUI process via env var
• Streaming execute (server-sent events for incremental previews)