Spend Control for Dify
Dify builds LLM apps and agent workflows quickly — which means workflows go to production fast, and production workflows spend. A guard node keeps the bill honest.
Why Dify workflows overspend
Workflow nodes call paid APIs on every run; an hourly workflow is 720 paid calls a day.
Agent nodes can trigger external tools and payments.
Retries re-run paid nodes automatically.
How it works
Add an HTTP request node to sipi.bot before any spend step, and branch on the decision: APPROVED continues, BLOCKED stops, FLAGGED routes to a human.
Rules that fit Dify workloads
Per-transaction cap on API purchases.
Daily ceiling across workflows.
Approval threshold for large spends.
Workflow branch
HTTP Request node -> https://sipi.bot/v1/transactions/evaluate
Branch:
APPROVED -> continue to paid step
BLOCKED -> stop, log
FLAGGED -> notify, pause for approval
Three branches, one deterministic decision.
FAQ
Does sipi.bot run inside Dify?
sipi.bot is external — Dify calls it over HTTP like any other API. Self-host is available.
Can it stop a workflow retry loop?
Yes — velocity limits cap transactions per window, so a retry loop stops at the limit.
What about the open-source Dify self-host?
Same integration — it's just HTTP. The MIT core self-hosts forever.
Related
Stop the next $12,400 night.
One API call (or MCP tool) in front of every agent transaction — APPROVED, BLOCKED, or FLAGGED, deterministic, ~5 ms, fully logged.
See plans — from $99/mo Try a live check