I am going to write software that gets information from the blockchain directly.

Are there any tools or libraries to speed up that process? I am looking for things like decoding and encoding transactions, verifying signatures, scanning for certain data etc.

Preferred languages: Python or C/C++.

1 Answer 1


You probably make the right decision to not use one of the centralized API (blockchain.com, etc.). Run you own bitcoin-core fullnode(s) and connect to the RPC or REST interface.

You could connect via python with things like http://laanwj.github.io/bitcoin-python/doc/examples.html or any other RPC client.

If you need blocks / headers / chaininfos and transactions, consider enabling bitcoind -txindex and access data over the REST API (https://github.com/bitcoin/bitcoin/blob/master/doc/REST-interface.md).

If you need to verify scripts, you could use libbitcoinconsensus. There is a verify function:

EXPORT_SYMBOL int bitcoinconsensus_verify_script(const unsigned char *scriptPubKey, unsigned int scriptPubKeyLen,
                                    const unsigned char *txTo        , unsigned int txToLen,
                                    unsigned int nIn, unsigned int flags, bitcoinconsensus_error* err);

Bitpays insight is also a nice library (https://github.com/bitpay/insight) but it's javascript node.js based.


Your Answer

By clicking “Post Your Answer”, you agree to our terms of service and acknowledge you have read our privacy policy.

Not the answer you're looking for? Browse other questions tagged or ask your own question.