APM Server information API

The APM Server exposes an API endpoint to query general server information. This lightweight endpoint is useful as a server up/down health check.

This is the server information endpoint:

http(s)://{hostname}:{port}/

Sending an HTTP GET or HTTP POST request to the server information endpoint will return an HTTP 200, indicating that the server is up.

To configure authenticated access to the APM server, the instructions at APM API key or APM Secret Token, must be followed to configure the correct permissions for APM access.

If an API keys or a Secret token is passed along with the HTTP GET or HTTP POST request, in addition to an HTTP 200, the response payload will include some information about the APM server.

Example APM Server status request with GET, without credentials:

curl --verbose -X GET http://127.0.0.1:8200

*   Trying 127.0.0.1:8200...
* TCP_NODELAY set
* Connected to 127.0.0.1 (10.244.3.40) port 8200 (#0)
> GET / HTTP/1.1
> Host: 127.0.0.1:8200
> User-Agent: curl/7.68.0
> Accept: */*
>
* Mark bundle as not supporting multiuse
< HTTP/1.1 200 OK
< X-Content-Type-Options: nosniff
< Date: Tue, 17 Oct 2023 22:04:05 GMT
< Content-Length: 0
<
* Connection #0 to host 127.0.0.1 left intact

Example APM Server information request with POST, with a Secret token:

curl -X POST http://127.0.0.1:8200/ \
  -H "Authorization: Bearer secret_token"

{
  "build_date": "2021-12-18T19:59:06Z",
  "build_sha": "24fe620eeff5a19e2133c940c7e5ce1ceddb1445",
  "publish_ready": true,
  "version": "8.16.0"
}