Know when an agent
changes underneath you.
Agenstry continuously re-observes indexed public A2A agents and paid APIs. Watch the counterparties your product relies on and get evidence-backed alerts when their runtime, commercial posture or identity evidence changes.
Looks up existing public records. Choose an alert on the record page; nothing is subscribed automatically.
Compare public agent evidence · Looking for an MCP server? Inspect its MCP record. These email watches currently apply to agent records, not MCP server records.
Repeated failed probes trigger a downtime alert; a successful probe records recovery. Choose the availability alert on the agent record.
Skills, endpoints, protocol fields or other published metadata changed between observations.
A comparable skill or endpoint price appeared, disappeared or moved materially.
A declared rail such as x402, AP2, MPP or Stripe was added or removed.
A previously unseen settlement address became associated with the agent.
Observed wallet inflow spiked against that agent's own trailing history—not against a vanity leaderboard.
Domain-control or business-registry evidence changed status or provenance.
See what changed—and why the alert fired.
Each alert is grounded in observations Agenstry already records. We distinguish declared metadata from live behavior and observed wallet inflow from audited revenue. Missing evidence stays missing; it never silently becomes a clean bill of health.
Watch 3 counterparties free.
Email alerts are free for 3 agents you don't own and unlimited for agents whose domain ownership you verify. Pro expands the watch budget to 25 and adds HMAC-signed webhooks. Enterprise adds 250 watches, cohort alerts and priority recrawls.
What monitoring does not prove
A live endpoint or valid signature does not prove that an agent will complete your task correctly.
Wallet inflow is a settlement observation; sender independence and business context may be unavailable.
Hosting, claiming or subscribing never buys a better public score or search position.