The "Extreme" Architecture

The All-in-One API Kit.

ApexKit collapses the modern backend stack into a single, high-performance binary. Database, Vector Search, AI Runtime, and Edge Logic—unified in Rust.

Hyper-Optimized Rust Runtime

Built on Axum and Tokio. ApexKit isn't just a wrapper; it's a compiled binary that handles high-concurrency workloads with minimal memory footprint. No garbage collection pauses, just raw speed.

<5ms

Cold Start

10k+ RPS

Throughput

~30MB

Binary Size

Hybrid Relational-Document Store

Powered by LibSQL in WAL mode. ApexKit combines the structure of SQL with the flexibility of JSON document storage, linked by a graph-based _relations table.

Recursive CTE Expansion

Native Multi-Tenancy

Physical isolation per customer. ApexKit manages separate SQLite files and storage folders for every tenant, routed automatically via subdomains.

Zero-Leakage Architecture

Embedded Vector Engine

ApexKit integrates Candle (Rust ML framework) to run BERT/Jina embeddings directly on the CPU, coupled with an in-memory HNSW Index for millisecond-fast semantic search. No Pinecone required.

Explore Vector APIs

search_vector.rs

// Generate embedding locally
let vec = candle.embed(query);

// HNSW Approximate Nearest Neighbor
let hits = index.search(vec, 10);

// Hydrate results from DB
return db.get_records(hits);

Logic at the Edge via Boa

Extend the backend without recompiling. ApexKit embeds the Boa JavaScript engine to run server-side logic in a secure sandbox.

Event Hooks

Intercept DB operations (before_create, after_update) to enforce validation or trigger side-effects.

Cron Jobs

Built-in scheduler allows you to run maintenance scripts on a defined interval per tenant.

Custom Endpoints

Define manual routes accessible via /api/v1/run/{script_name}.

scripts/validate_order.jsActive

export default async function(e) {
  const { amount, user_id } = e.data;

  // 1. Database Lookup
  const user = await $db.find_one('users', user_id);

  // 2. Business Logic
  if (amount > 1000 && !user.is_verified) {
      throw new Error("Verification required.");
  }

  // 3. Side Effect
  if (amount > 5000) {
      await $http.post(process.env.SLACK_HOOK, {
          text: "Big whale alert!"
      });
  }

  return e.data;
}

Instant Search

Dual-Engine Discovery

ApexKit combines Tantivy for lightning-fast full-text search (typo tolerance, faceting) with a Vector Store for semantic understanding.

Instant Search: Memory-mapped inverted indexes for < 10ms response times.
Semantic Search: "Find shoes for running" returns results even if the word "running" isn't present.
Real-time Indexing: Data is searchable milliseconds after insertion via WAL hooks.

> Match: "Nike Air Zoom" (Score: 4.8)

> Semantic: "Marathon Gear" (Distance: 0.12)

Ready to go extreme?

Download the binary, drop it on your server, and start building. No external dependencies required.

Download for Linux Read Documentation