Distributed by design. Data-driven by default.

AimDB turns data contracts into the architecture. Define your schemas once and deploy them unchanged across microcontrollers, edge gateways, Kubernetes and the browser.

See it running → Live weather stations streaming typed contracts across MCU, edge and cloud.

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Why AimDB exists

AimDB makes the Rust type the contract — defined once, compiled unchanged from a no_std microcontroller to a Kubernetes pod. No separate schema files. No code generators. No translation layer between firmware and cloud. The code is law.

• One type, every tier — the same struct compiles for bare-metal firmware and a cloud service, with no conversion layer between them.
• No glue code between layers — the buffer type on a record defines how it moves. No manual queue wiring.
• Observability built-in — implement the Observable trait and every record emits metrics automatically. No separate instrumentation layer.
• Connectors derive from the type — declare a connector on the key, not as a separate process.

→ The Next Era of Software Architecture Is Data-First

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Quick start

Run it locally in 5 min

cargo new my-aimdb-app && cd my-aimdb-app
cargo add aimdb-core aimdb-tokio-adapter tokio --features tokio/full

Drop this into src/main.rs:

use aimdb_core::{buffer::BufferCfg, AimDbBuilder};
use aimdb_tokio_adapter::{TokioAdapter, TokioRecordRegistrarExt};
use std::sync::Arc;

#[derive(Clone, Debug)]
pub struct Temperature {
    pub celsius: f32,
}

#[tokio::main]
async fn main() -> Result<(), Box<dyn std::error::Error>> {
    let runtime = Arc::new(TokioAdapter::new()?);
    let mut builder = AimDbBuilder::new().runtime(runtime);

    builder.configure::<Temperature>("temp.indoor", |reg| {
        reg.buffer(BufferCfg::SpmcRing { capacity: 16 })
            .source(|ctx, producer| async move {
                for celsius in [21.0, 22.5, 24.1] {
                    producer.produce(Temperature { celsius }).await.ok();
                    ctx.time().sleep(ctx.time().secs(1)).await;
                }
            })
            .tap(|ctx, consumer| async move {
                let mut reader = consumer.subscribe().unwrap();
                while let Ok(t) = reader.recv().await {
                    ctx.log().info(&format!("temp: {:.1}°C", t.celsius));
                }
            })
            .finish();
    });

    builder.build()?.run().await?;
    Ok(())
}

cargo run — three temperature readings stream through a typed pipeline. The same code compiles for Embassy on a Cortex-M4 or WASM in the browser by swapping the runtime adapter — nothing else changes.

Run a real weather mesh in less than 30 min

A full MCU → edge → cloud mesh: three weather stations, MQTT broker and a central hub.

git clone https://github.com/aimdb-dev/aimdb
cd aimdb/examples/weather-mesh-demo
docker compose up

→ Walkthrough in the docs

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What you get

• One async API across MCU, edge, cloud and browser. Tokio, Embassy, WASM — same code, different runtime adapter. → How the runtime abstraction works
• Typed Rust structs are the schema. No IDL, no codegen step, no schema registry.
• Three buffer primitives that cover most data-movement patterns:

Buffer	Semantics	Use cases
SPMC Ring	Bounded stream with independent consumers	Sensor telemetry, event logs
SingleLatest	Only the current value matters	Feature flags, config, UI state
Mailbox	Latest instruction wins	Device commands, actuation, RPC

• Capabilities are unlocked by traits. Implement Streamable to cross WASM/WebSocket/CLI boundaries, Migratable for typed schema evolution, Observable for monitoring, Linkable for wire-format connectors. Without the trait, the type system says no.
• Connectors that ship today: MQTT, KNX, WebSocket. Writing your own is one trait impl.

→ Deep dives: data contracts · source/tap/transform · schema migration · reactive pipelines

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Platform-Agnostic by Design

The same contract works across all runtimes without modification:

┌───────────────────────────────────────────────────────────────────────────────┐
│                           Temperature Contract                                │
├───────────────────┬───────────────────┬───────────────────┬───────────────────┤
│  MCU (Embassy)    │  Edge (Tokio)     │  Cloud (Tokio)    │  Browser (WASM)   │
│  no_std + alloc   │  std              │  Kubernetes       │  wasm32           │
│  Cortex-M4        │  Linux / RPi      │  Full featured    │  Single-threaded  │
└───────────────────┴───────────────────┴───────────────────┴───────────────────┘

The Rust type system enforces correctness at compile time. The dataflow engine's buffer semantics enforce flow guarantees at runtime. Connectors wire everything to your infrastructure without an integration layer.

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Ask your AI about your running system

AimDB ships an MCP server. Point any MCP-compatible client at a running instance and query it in natural language.

Try it against the live demo — no install required. Add this to your workspace:

.vscode/mcp.json:

{
  "servers": {
    "aimdb-weather": {
      "type": "http",
      "url": "http://aimdb.dev/mcp"
    }
  }
}

Then ask: "What's the current temperature in Munich?"

See the MCP server docs for Claude Desktop and other editors or read the deep dive: AI-Assisted System Introspection: AimDB Meets the Model Context Protocol.

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Learn more

• Quick Start Guide — dependencies, platform setup, your first contract
• API reference (docs.rs) — full Rust API
• Blog — design notes, deep dives, release write-ups
• Live demo — running sensor mesh

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Connectors

Protocol	Crate	Status	Runtimes
MQTT	aimdb-mqtt-connector	✅ Ready	std, no_std
KNX	aimdb-knx-connector	✅ Ready	std, no_std
WebSocket	aimdb-websocket-connector	✅ Ready	std, wasm
Kafka	—	📋 Planned	std
Modbus	—	📋 Planned	std, no_std

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Platform Support

Target	Runtime	Adapter	Features	Footprint
ARM Cortex-M (STM32H5, STM32F4)	Embassy	aimdb-embassy-adapter	no_std, async	~50KB+
Linux Edge (RPi, gateways)	Tokio	aimdb-tokio-adapter	Full std	~10MB+
Containers / K8s	Tokio	aimdb-tokio-adapter	Full std	~10MB+
Browser / SPA	WASM	aimdb-wasm-adapter	wasm32, single-threaded	~2MB+

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Contributing

Found a bug or want a feature? Open a GitHub issue.

Have questions or ideas? Join the discussion on GitHub Discussions.

Want to contribute? See the contributing guide. We have good first issues to get started.

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License

Apache 2.0

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Define once. Deploy anywhere.

Get started · Live demo · Join the discussion