Rust SDK — zeq

A tokio-native, serde-JSON Rust client. Zero unsafe. Same wire format as every other SDK — receipts from a Rust call round-trip byte-for-byte against the TypeScript, Python, Go, JavaScript, and HTTP forms.

Install

# Cargo.toml
[dependencies]
zeq      = "1.287"
tokio    = { version = "1", features = ["full"] }

First call — public, no key

use zeq::pulse;

#[tokio::main]
async fn main() -> Result<(), zeq::Error> {
    let p = pulse().await?;
    println!("Zeqond {} · phase {:.3} · R(t) {}",
             p.zeqond, p.phase, p.r_t);
    Ok(())
}

pulse() hits GET /api/zeq/pulse. No authentication, sub-30 ms response, ideal for embedded telemetry running on the 1.287 Hz system clock.

Authed call — zeq.compute()

use zeq::{ZeqClient, Compute};
use serde_json::json;

#[tokio::main]
async fn main() -> Result<(), zeq::Error> {
    let zeq = ZeqClient::from_env()?;          // reads $ZEQ_KEY

    let r = zeq.compute(Compute {
        operators: vec!["KO42".into(), "QM5".into(), "GR40".into()],
        domain:    Some("cross".into()),
        inputs:    json!({ "t": 0 }),
    }).await?;

    println!("{} {} ± {}", r.value, r.unit, r.uncertainty);
    println!("zeqProof: {}", r.zeq_proof);
    println!("compliance: {:?}", r.compliance.standards_aligned);
    Ok(())
}

Every response carries the same ZeqState + ZeqProof + ZeqCompliance v1 envelope as every other SDK.

Why Rust here

• Embedded firmware. The no_std feature flag drops the runtime, so the same crate compiles for ARM Cortex-M targets that run alongside the Embedded C observer agent.
• Aerospace flight software. serde-driven JSON means strict parse errors at compile time — DO-178C tool-qualification audits get the same trace boolean as every other path.
• Server-side throughput. Async by default. One client handles thousands of in-flight compute calls.

Compose with

• Hosted API reference — every endpoint the crate wraps.
• Observer Agents — Embedded C — pair with Rust on the same device.
• ZeqCompliance v1 — the envelope every call returns.

Source

• crates.io: zeq
• GitHub: packages/sdk-rust/