A2A agent monitoring
PingDog runs a real A2A health check on your schedule: it fetches the agent card, verifies it carries the fields other agents rely on, and pings the endpoint — so a broken agent surfaces before it breaks a workflow.
What PingDog checks
- GET /.well-known/agent-card.json returns valid JSON
- The card carries name, capabilities and endpoint fields
- A minimal ping to the agent endpoint gets a response
In multi-agent systems, one unreachable agent quietly stalls whatever chain of work depended on it. Discovery is the fragile part: if the agent card is missing, malformed, or points at a dead endpoint, every agent that tries to collaborate with it fails in a confusing way.
PingDog's A2A check mirrors what a peer agent does — fetch the card, confirm the required fields are present, and ping the endpoint — turning a silent discovery failure into a clear down alert.
Anonymous, pay-per-check
Like everything on PingDog, this check needs no account: your key is the account, you pay once at $0.0005 per delivered check in USDC on Base, and nothing renews. A real free tier runs up to 3 monitors at a 5 minutes interval with no payment at all. See how pricing works.
Frequently asked
What does the A2A check actually verify?
Three things: that /.well-known/agent-card.json returns valid JSON, that the card contains the name, capabilities and endpoint fields, and that a minimal ping to the endpoint gets a response.
Is this only for AI agents?
It targets A2A-compatible agents specifically — the discovery-and-ping pattern those agents expose. For plain HTTP services, use the website/API check.