rodadams.5963:

In /v1/map_names.json and /v1/world_names.json, the id’s are strings.
In /v1/events.json, they are integers.

Easily overcomable, but a mild annoyance, nonetheless.

Cliff Spradlin.3512:

Sorry about that. We’re aware it’s a problem but it’s a bit painful to fix at this time.

Snowreap.5174:

this also affects the WvW API. world id’s are integers in https://api.guildwars2.com/v1/wvw/matches.json

-ken