user4427: I have a policy ID with hundreds of NFT with different asset name (for eg TTS19, TTS20, etc)
what is the easiest way to find all addresses/wallets which have this NFT(holders)?
I tried with koios and blockfrost but since all nft have a different unique hex asset name I can't show all addresses.
thank you in advanced,
TTS17
theTokenSquare

user4627: Using Blockfrost you could check for all "assets of the given policy" using this endpoint:
/assets/policy/{policy_id}

(https://docs.blockfrost.io/#tag/Cardano-Assets/paths/~1assets~1policy~1{policy_id}/get)
and then for each asset you can get the holder through this endpoint:
/assets/{asset}/addresses

(https://docs.blockfrost.io/#tag/Cardano-Assets/paths/~1assets~1{asset}~1addresses/get)

user2470: A of time of posting available services of blockfrost and koios require you to query combination of multiple endpoints. So therefore for more advanced/specific usage you probably best of querying cardano-db-sync instance your self.
As example you take a look at asset_address_list.sql at github.com/cardano-community/guild-operators repo how to build your query.

4427: <p>I have a policy ID with hundreds of NFT with different asset name (for eg TTS19, TTS20, etc)</p>
<p>what is the easiest way to find all addresses/wallets which have this NFT(holders)?
I tried with koios and blockfrost but since all nft have a different unique hex asset name I can't show all addresses.</p>
<p>thank you in advanced,
TTS17
theTokenSquare</p>
 4627: <p>Using Blockfrost you could check for all <em>&quot;assets of the given policy&quot;</em> using this endpoint:</p>
<pre><code>/assets/policy/{policy_id}
</code></pre>
<p><em>(<a href="https://docs.blockfrost.io/#tag/Cardano-Assets/paths/%7E1assets%7E1policy%7E1%7Bpolicy_id%7D/get" rel="nofollow noreferrer">https://docs.blockfrost.io/#tag/Cardano-Assets/paths/~1assets~1policy~1{policy_id}/get</a>)</em></p>
<p>and then for each asset you can get the holder through this endpoint:</p>
<pre><code>/assets/{asset}/addresses
</code></pre>
<p><em>(<a href="https://docs.blockfrost.io/#tag/Cardano-Assets/paths/%7E1assets%7E1%7Basset%7D%7E1addresses/get" rel="nofollow noreferrer">https://docs.blockfrost.io/#tag/Cardano-Assets/paths/~1assets~1{asset}~1addresses/get</a>)</em></p>
 2470: <p>A of time of posting available services of <code>blockfrost</code> and <code>koios</code> require you to query combination of multiple endpoints. So therefore for more advanced/specific usage you probably best of querying <code>cardano-db-sync</code> instance your self.</p>
<p>As example you take a look at <a href="https://github.com/cardano-community/guild-operators/blob/master/files/grest/rpc/assets/asset_address_list.sql" rel="nofollow noreferrer">asset_address_list.sql</a> at <a href="https://github.com/cardano-community/guild-operators" rel="nofollow noreferrer">github.com/cardano-community/guild-operators</a> repo how to build your query.</p>
