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Official server-side libraries wrap the cNGN API and handle authentication, request encryption (AES-256-CBC), and response decryption (Ed25519) for you. Four languages are currently supported:

TypeScript / Node.js

cngn-typescript-library: for Node.js and TypeScript backends.

Python

cngn-python-library: for Python backends.

PHP

cngn-php-library: for PHP backends (Composer).

Java

cngn-java-library: for Java and JVM backends.
SDKs are server-side only. Never embed your API key, encryption key, or Ed25519 private key in client-side or mobile code.

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What the SDKs handle for you

  • Bearer authentication with your cngn_test / cngn_live API key
  • AES-256-CBC encryption of request bodies into the {content, iv} wire format
  • Ed25519/Curve25519 decryption of response payloads
  • Typed methods for every endpoint in the API Reference
If your language isn’t listed, integrate directly over HTTP using the Encryption guide; all endpoints are plain REST.

cNGN Price Oracle

On-chain price oracle for cNGN.

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Brand assets

Building a cNGN integration into your product? Use the official logos and brand marks rather than recreating them.

cNGN Brand Assets

Download official cNGN logos and brand assets from the shared drive.