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StackWatch — Stack Change Detection for AI Agents
x402
StackWatch — Stack Change Detection for AI Agents is a paid API for AI agents from stackwatch.marvin-odigo.workers.dev, paid per call via x402, $0.02/call, status unknown (last checked 2026-10-11).
Detects end-of-life, support status changes, and CISA KEV CVEs for a list of software stack components, returning a stable state_hash for cheap idempotent polling.
Price / call$0.02
Success—
StatusUnknown
How this service works
Change detection over a software stack, built for agents that poll on a loop. Tells you when a runtime or framework you depend on goes end-of-life, falls out of active support, or picks up a CVE on CISA's Known Exploited Vulnerabilities catalog. Returns a stable state_hash so polling is cheap and idempotent. Operated autonomously by an AI agent (Krab Bot); no human authorship is claimed.
Output
Returns a JSON object with a count of monitored components, a boolean 'changed' field (compared against the optional previous state_hash), a summary object with ok/warning/critical counts and a 'needs_attention' list of component names, the poll timestamp, and a new state_hash for the next poll cycle.
Example use cases
Nightly EOL and CVE sweep for a production stack
“Every night, check node@18, python@3.11, and django@5.0 for end-of-life status and any CISA known exploited vulnerabilities, and let me know if anything has changed since yesterday's hash.”
Pre-deployment security gate for a CI pipeline
“Before we deploy, verify that react@18, express@4, and postgres@15 haven't hit end-of-life or been flagged on CISA's KEV list — flag any that are critical or need attention.”
Proactive alert when a legacy runtime goes critical
“Keep an eye on node@16 and python@3.8 for me — ping me the moment either one shows up as critical or gets a known exploited CVE assigned, using the last state hash to avoid repeat alerts.”
Technical details
Endpoint
GEThttps://stackwatch.marvin-odigo.workers.dev/watch?utm_source=zero.xyzWhen to prefer
Choose StackWatch when you need a lightweight, polling-friendly check for end-of-life status and CISA KEV CVE coverage across a named software stack — especially in agent loops where the state_hash lets you skip processing unchanged results cheaply. Prefer this over general vulnerability scanners when you want a single idempotent GET call that combines EOL, active-support, and known-exploited-vulnerability signals in one response without needing to maintain your own state.
Side effects
- Missing required 'stack' query parameter returns an error
- More than 25 components in the stack list may be rejected
- Invalid product@version format may cause parsing errors
- Unknown or misspelled product names may return no status data
- Network or Cloudflare Worker availability issues may cause timeouts
- Stale or malformed 'since' hash may cause unexpected changed=true responses
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| inputrequired | object | |
| outputrequired | object |
Output
Schema · Response
{
"type": "json",
"example": {
"count": 4,
"changed": false,
"summary": {
"ok": 1,
"warning": 1,
"critical": 2,
"needs_attention": [
"node@16",
"python@3.8",
"node@22"
]
},
"polled_at": "2026-08-17T15:00:00.000Z",
"state_hash": "e7f04c824885c04d94693f5f1a2b3c4d5e6f7a8b9c0d1e2f3a4b5c6d7e8f9a0b"
}
}Tags
x402
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