7 train data present in json but missing from protobuf feed?

Keenan Thompson

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Jun 15, 2026, 8:54:48 AM Jun 15

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Hello,

I'm relatively new to using this API, but this seems like a pretty blatant bug unless I'm totally misunderstanding something. The 7 train data is almost always missing from the binary protobuf feed. Pulling the protobuf endpoint returns 0 trips for the 7 train, while lines 1-6 and GS return normally. I've seen the data appear in the protobuf feed only a handful of times in the past day or so that I've tried, out of hundreds of requests.

Endpoints :
- Protobuf: https://api-endpoint.mta.info/Dataservice/mtagtfsfeeds/nyct%2Fgtfs
- JSON: https://api-endpoint.mta.info/Dataservice/mtagtfsfeeds/nyct%2Fgtfs.json

Steps to reproduce :
1. Fetch both the protobuf and .json endpoints at the same time.
2. Check the trip_update entities for route_id 7.
3. The protobuf feed will usually have 0 entities for the 7 train, while the json feed will have many. All other trains (1-6) match perfectly between the two feeds.

Is the 7 train supposed to be in this feed (like it is in the JSON version)?

Thanks,
Keenan

Wilson Prieve

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Jun 15, 2026, 10:02:09 AM Jun 15

to mtadeveloperresources

Hi Keenan

I'm experiencing this same issue - before this weekend the (7) train was in this feed and behaved the same as lines 1-6. I've observed trips still occasionally appearing, but this is not the normal behavior - and many transit apps list active 7 trips as scheduled or cancelled. I already reported this here yesterday so hopefully we'll learn more soon.

Best,

Wilson

Shen-Cruz, Dillon

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Jun 15, 2026, 2:14:57 PM Jun 15

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Hi all, thank you for your patience. At this time, it appears we were able to diagnose the issue and restore the 7 train realtime data in the GTFS-RT protobuf feed. Please feel free to reply to this thread if you continue seeing issues with the 7.

—

Dillon Shen-Cruz

Product Manager, Customer Experience

Metropolitan Transportation Authority

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