EU CBAM & Carbon Tax Calculation Engine — Rust Client Crate

EU CBAM Scope 1/2 embedded emissions and EU ETS carbon tax liability calculator across Iron, Steel, Aluminum, Cement, Fertilizers, and Hydrogen.

Official high-performance, asynchronous Rust client library for EU CBAM & Carbon Tax Calculation Engine, built on the Stanza Micro-API Network. Uses pure Rustls TLS (zero C/OpenSSL dependencies) and Tokio for maximum concurrency and safety.

• 🌐 Online Interactive Sandbox: Test your inputs live
• 📚 API Reference & Schemas: View documentation on Stanza
• ⚡ Platform Overview: Explore the Stanza Developer Network

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📦 Installation

Add to your Cargo.toml:

[dependencies]
stanzaapi-cbam-carbon = "1.0.0"
tokio = { version = "1.0", features = ["full"] }

Or use cargo add:

cargo add stanzaapi-cbam-carbon

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🚀 Quickstart

use stanzaapi_cbam_carbon::CbamCarbonClient;

#[tokio::main]
async fn main() -> Result<(), Box<dyn std::error::Error>> {
    // Reads STANZA_API_KEY from environment automatically
    // Public edge default: https://api.stanzaapi.com/cbam-carbon
    let client = CbamCarbonClient::new(None, None);

    let response = client.validate({"goods_category":"iron_and_steel","production_country":"TR","quantity_tonnes":500}).await?;

    if response.success {
        println!("Verification Success: {:?}", response.data);
    } else {
        eprintln!("Validation Error: {:?}", response.error);
    }

    Ok(())
}

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📄 Example Response

{
  "success": true,
  "data": {
    "goods_category": "iron_and_steel",
    "direct_emissions_tco2e": 950,
    "estimated_ets_liability_eur": 71250
  }
}

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🔗 Useful Links

• EU CBAM & Carbon Tax Calculation Engine Interactive Sandbox
• Stanza Developer Directory
• Source Code & Issue Tracker

📄 License

MIT © Stanza — Powered by Stanza.