# Explorer API for testnet

**URL:** <https://talk.harmony.one/t/explorer-api-for-testnet/11033>\
**Category:** Developers\
**Created:** [February 5, 2022, 10:46pm UTC](https://talk.harmony.one/t/explorer-api-for-testnet/11033 "2022-02-05T22:46:11Z")\
**Posts on this page:** 1\
**Page:** 1

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**Author:** ![ernestognw](https://yyz1.discourse-cdn.com/flex035/user_avatar/talk.harmony.one/ernestognw/32/6147_2.png) [@ernestognw](https://talk.harmony.one/u/ernestognw)\
**Post date:** [February 5, 2022, 10:46pm UTC](https://talk.harmony.one/t/explorer-api-for-testnet/11033/1 "2022-02-05T22:46:11Z")

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Hey,

I’m trying to [add support for Harmony on Sourcify,](https://github.com/ethereum/sourcify/issues/645) but I need a source to have the txHash for a contract deployment given the contract address so I can send a PR to the Sourcify repository.

I know there’s the explorer API and it has exactly what I need [here](https://explorer-v2-api.hmny.io/v0/shard/0/address/0xc22834581ebc8527d974f8a1c97e1bea4ef910bc/contract), but I haven’t been able to find the testnet version of this API.

Is it public? And if not, what other resource can I use to get the deployment tx hash given a contract address?