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Agent Watch Census
x402
Agent Watch Census is a paid API for AI agents from aiagentscity.com, paid per call via x402, $0.1/call, status unknown (last checked 2026-10-22).
Returns a real-time snapshot census of known AI agent and MCP endpoints, showing how many are alive, dead, or unknown.
Price / call$0.1
Success—
StatusUnknown
How this service works
Agent-economy census snapshot: how many known agent/MCP endpoints are alive, dead or unknown right now.
Output
A census snapshot object reporting the current count of known AI agent and MCP endpoints broken down by status: alive, dead, and unknown, along with likely a total count and snapshot timestamp.
Example use cases
Morning agent ecosystem health check
“Give me a quick Agent Watch census snapshot so I can see how many agent and MCP endpoints are currently alive versus dead across the ecosystem.”
Tracking agent network growth over time
“Fetch the current Agent Watch census — I'm logging how the total number of known agent endpoints changes week over week and need today's alive/dead/unknown counts.”
Alerting on ecosystem degradation
“Check the Agent Watch census right now and tell me if the number of dead or unknown agent endpoints has spiked compared to what's typically alive — I want to know if something's going wrong in the network.”
Technical details
Endpoint
GEThttps://aiagentscity.com/api/x402/agent-watch/census?utm_source=zero.xyzWhen to prefer
Choose this endpoint when you need a quick, current aggregate view of the AI agent and MCP endpoint ecosystem health — specifically counts by status (alive/dead/unknown). Prefer this over full registry scrapes or individual endpoint probes when you only need summary statistics about the agent economy at large.
Side effects
- Payment failure (x402 protocol error if USDC payment is not properly attached)
- Service unavailable if the underlying census data pipeline is down
- Stale data if the census has not been recently refreshed
- Schema mismatch if the required 'method' field is missing from input
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| inputrequired | object | |
| output | object |
Tags
x402
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