Does the smart-me API need an API key?

Does the smart-me API need an API key?

Yes for the 22 operations checked: an anonymous request was refused, on 2026-09-15. Where the document said nothing about it, this replaces a silence with an observation.

ERR-2026-1729, ERR-2026-1732, ERR-2026-1741, ERR-2026-1746, ERR-2026-1747, ERR-2026-1748, ERR-2026-1780, ERR-2026-1808, ERR-2026-1822, ERR-2026-1845, ERR-2026-1903, ERR-2026-1909

Every record behind those answers

22 open records, observed 2026-09-10. Every claim below carries the command that disproves it. If one is wrong, it should be withdrawn — 121 have been across the whole registry.

credentials are required (observed) (22)

The document establishes no authentication requirement for this operation; an anonymous request is refused with 401. The requirement is now observed rather than unknown.

ERR-2026-1729Gets all registrations for the Realtime API.HTTP 401checked 2026-09-15, 2 times
ERR-2026-1732Gets the additional information (e.g. Firmware Version) about a device.HTTP 401checked 2026-09-15, 2 times
ERR-2026-1741Gets a Device by it's IDHTTP 401checked 2026-09-15, 2 times
ERR-2026-1746Get a sub user. The user must be assigend to the user that makes this call.HTTP 401checked 2026-09-15, 2 times
ERR-2026-1747Gets multiple values of a device. This call needs a smart-me professional licence.HTTP 401checked 2026-09-15, 2 times
ERR-2026-1748Force a device to send the data every second (if supported). This for about 30s. Don't useHTTP 401checked 2026-09-15, 2 times
ERR-2026-1780Gets all (last) values of a deviceHTTP 401checked 2026-09-15, 2 times
ERR-2026-1808Gets the Values for a folder or a meterHTTP 401checked 2026-09-15, 2 times
ERR-2026-1822Gets all Devices by it's Sub Type (e.g. E-Charging Station)HTTP 401checked 2026-09-15, 2 times
ERR-2026-1845Gets the Values for a Meter at a given Date. The first Value found before the given Date iHTTP 401checked 2026-09-15, 2 times
ERR-2026-1903Gets the configuration of a smart-me device.HTTP 401checked 2026-09-15, 2 times
ERR-2026-1909Gets the informations for the user.HTTP 401checked 2026-09-15, 2 times
ERR-2026-1962Beta: Gets the General Information for a Meter or a FolderHTTP 401checked 2026-09-15, 2 times
ERR-2026-1967Gets all available Actions of a DeviceHTTP 401checked 2026-09-15, 2 times
ERR-2026-1982Gets all DevicesHTTP 401checked 2026-09-15, 2 times
ERR-2026-2070Gets all Devices for an Energy TypeHTTP 401checked 2026-09-15, 2 times
ERR-2026-2091Gets a Custom Device by it's IDHTTP 401checked 2026-09-15, 2 times
ERR-2026-2094Gets a Device by it's Serial Number. The Serial is the part before the "-".HTTP 401checked 2026-09-15, 2 times
ERR-2026-2150Beta: Gets all active virtual metersHTTP 401checked 2026-09-15, 2 times
ERR-2026-2151Gets the folder menu items (each item might contain child items)HTTP 401checked 2026-09-15, 2 times
ERR-2026-2188Gets all Custom DevicesHTTP 401checked 2026-09-15, 2 times
ERR-2026-2190Gets all (last) values of a device The first Value found before the given Date is returnedHTTP 401checked 2026-09-15, 2 times

Check it yourself:

curl -sS -o /dev/null -w '%{http_code}\n' https://smart-me.com:443/api/RegisterForRealtimeApi

If a record here is wrong

Run its check. If the answer differs from what is written, say so here and it will be withdrawn — 121 already have been. A record nobody can contest is a record asking to be trusted, which is the opposite of the point.

What this page does not tell you

This is not a clean bill of health for anything not listed. The registry was built from a sample of two directories, and an operation absent from it was almost certainly never examined. Silence here means not looked at, not looked at and fine — which is the same mistake this registry exists to record in other people.

What this is

A record of defects in the public description of machine-callable operations: documents a directory claims are live and are not, hosts that no longer resolve, specifications that contradict the API they describe. It is not a ranking, not a review, and not a judgement about the service. No credential is ever sent to anything listed here.

The whole registry, machine-readable: errata.json. Index of subjects: index.html.

Built from registry errata-2026-09-10@b7cb54d3a847. If manifest.json shows a different one, this page is behind the records and should not be trusted over them.