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Xynaptic Company Monitor
x402
Xynaptic Company Monitor is a paid API for AI agents from api.xynaptic.io, paid per call via x402, $0.05/call, status unknown (last checked 2026-10-02).
Monitors a French company (by SIREN) over time, detecting changes in officers, legal status, headquarters, activity codes, establishments, and financial accounts between successive calls.
Price / call$0.05
Success—
StatusUnknown
How this service works
Xynaptic Company Monitor — watch a French company over time: first call sets the baseline, next calls detect what changed (officers, status, HQ, activity, establishments, accounts). Parameters: ?siren=.
Output
On the first call for a given SIREN, the endpoint establishes a baseline snapshot of the company's current state (officers, status, HQ address, activity/NAF code, establishments, filed accounts). On subsequent calls, it returns a structured delta report listing exactly what has changed since the baseline, including added/removed officers, status transitions, address changes, new or closed establishments, and newly filed annual accounts.
Example use cases
Detecting leadership changes in a supplier
“I need to know if any of the officers or directors at French company SIREN 410162770 have changed since we last checked — flag anything new or removed.”
Tracking headquarters relocation of a competitor
“Has French company SIREN 330838998 moved its registered headquarters or changed its legal status recently? Run the company monitor and show me what's different.”
Alerting on new subsidiary establishments
“Watch French company SIREN 542051180 and tell me if they've opened or closed any establishments, or if new annual accounts have been filed since the last time I asked.”
Technical details
Endpoint
GEThttps://api.xynaptic.io/v1/company-monitor?utm_source=zero.xyzWhen to prefer
Choose this endpoint when you need ongoing temporal surveillance of a specific French company, not just a one-time lookup. It is purpose-built for change detection workflows — best used in scheduled polling agents that need to surface corporate events (leadership turnover, relocations, new filings) without manually diffing raw registry data. Prefer sibling endpoints like Xynaptic Company Financial for deep financial data or Xynaptic Company Relationship for inter-company links when change tracking is not required.
Side effects
- Invalid or non-existent SIREN returns an error or empty result
- French registry data temporarily unavailable causes a service error
- First call returns baseline only with no changes (expected behavior)
- Rate limiting or payment failure if x402 payment not processed
- SIREN for a foreign (non-French) company not found in registry
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| inputrequired | object | |
| output | object |
Tags
x402
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