# It appears that one cannot query the list of canisters controlled by their own principal

**URL:** <https://forum.dfinity.org/t/it-appears-that-one-cannot-query-the-list-of-canisters-controlled-by-their-own-principal/57107>\
**Category:** Developers\
**Created:** [September 9, 2025, 3:27am UTC](https://forum.dfinity.org/t/it-appears-that-one-cannot-query-the-list-of-canisters-controlled-by-their-own-principal/57107 "2025-09-09T03:27:09Z")\
**Posts on this page:** 3\
**Page:** 1

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**Author:** ![e274426380](https://sea1.discourse-cdn.com/flex023/user_avatar/forum.dfinity.org/e274426380/32/2555_2.png) [@e274426380](https://forum.dfinity.org/u/e274426380)\
**Post date:** [September 9, 2025, 3:27am UTC](https://forum.dfinity.org/t/it-appears-that-one-cannot-query-the-list-of-canisters-controlled-by-their-own-principal/57107/1 "2025-09-09T03:27:09Z")

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I was surprised to discover that there currently seems to be no way to query the list of canisters controlled by the principal I own.

If you forget the canister ID, there is no way to recover it.

Is there any way to query the list of canisters currently controlled by the principal through an interface?

Or is it only possible through manual recording?

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**Author:** ![ilbert](https://sea1.discourse-cdn.com/flex023/user_avatar/forum.dfinity.org/ilbert/32/8717_2.png) [@ilbert](https://forum.dfinity.org/u/ilbert)\
**Post date:** [September 9, 2025, 7:22am UTC](https://forum.dfinity.org/t/it-appears-that-one-cannot-query-the-list-of-canisters-controlled-by-their-own-principal/57107/2 "2025-09-09T07:22:44Z")

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This tool may help:  
[https://forum.dfinity.org/t/getting-a-canisters-controller-on-chain/7531/20?u=ilbert](https://forum.dfinity.org/t/getting-a-canisters-controller-on-chain/7531/20)

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**Author:** ![e274426380](https://sea1.discourse-cdn.com/flex023/user_avatar/forum.dfinity.org/e274426380/32/2555_2.png) [@e274426380](https://forum.dfinity.org/u/e274426380)\
**Post date:** [September 9, 2025, 7:57am UTC](https://forum.dfinity.org/t/it-appears-that-one-cannot-query-the-list-of-canisters-controlled-by-their-own-principal/57107/3 "2025-09-09T07:57:05Z")

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Oh, this is fantastic! Using the `/api/v3/canisters` API in Swagger makes querying completely possible.

Thank you very much for your reply. This has resolved an issue for me.