coinparams: json file with params for hundreds of altcoins, js/php bindings.

[bosshyip]

I made a tool that parses bitcoin derived codebases and extracts relevant info for each cryptocurrency, including testnet and regtest networks.

So far, over 300 altcoins have been parsed, many with testnet and regtest settings.  I believe this to be the most comprehensive listing of altcoin parameters yet produced.

The data is made available in a single JSON file for use in any language, and also there are language bindings for JS and PHP that make installation and usage dead simple.

There are also human readable summary tables in markdown format:
Coin Metadata
Networking Info
Prefixes
Genesis Block Hashes

I began collecting data because I needed bip32 prefixes for my hd-wallet-derive tool.  However, it was a fun exercise to parse source repos and the project took on a life of its own.  I figured the data could benefit others working on multi-coin projects.

Available data for each coin / network includes:
symbol and name
Urls: website, github repo, block explorers, announcement
number of decimal places
Key prefixes:  public, private, p2sh, bip32 xpub, xprv, bech32, bip44
p2p port and rpc port
DNS seeds
p2p magic bytes and signing magic prefix
genesis block hash

Tokens are not included and no plans to do so.  XMR, ETH, and DCR are included and other non-bitcoin derived coins are welcome if people want to submit pull request for them.

The data, code, and more examples are on github.

Feedback, comments appreciated.  Please report any issues on github page.