but the code can only work well on the shard 8000000000000000.
I must make some mistake but I don't know how to change my code.

my code can only loop on the shard 8000000000000000.

first get balance before.
then send tx.
then get the change the balance.
then use the balance before + or - the changes to get the balance after.

then check the "balance after" equal the balance on the chain.

for example. I loop from the (0,8000000000000000,17308362)
then (0,8000000000000000,17308363)
then (0,8000000000000000,17308364)
until the current block num.

but I don't know how the find the other shard.

if the transfer is record on the c000000000000000 not on the 8000000000000000

my code is bug.

so my question is:
if the master chain id is from 16009000 to 16009825.
how to get all the workchain tx.

It's not hard, but not super easy

Look at how it's done in libs. Ton lite client for js and pytoniq(I think) for python

Please don't split the sentences into different messages.

thank you.

ok.

is this api can be used? https://tonapi.io/v2/blockchain/masterchain/123456/blocks

Yes

Yes

OK. I think the reason I cann't find the api is. most of the api https://tonapi.io/v2/blockchain/masterchain/16010000/blocks only return two block. one masterchain. one workchain 8000000000000000.

while the demo https://tonapi.io/v2/blockchain/masterchain/123456/blocks shows a lot of shards.

I have limited knowledge about this chain, and my ability to read English documentation is also weak. As a result, I often encounter many confusions. Thank you all for helping me.

another question～

how to get master chain seqno by the workchain block id use the api?

how to get master chain seqno by the transaction hash use the api?