Production backend code blocks, generated into your project.
Rate limiting, validation, logging, and error handling — generated as pure TypeScript files you read, edit, and own.
// GENERATED FILE: src/blocks/rate-limiter.ts
// Owned by your repository. Zero black-box wrapper dependencies.
import { Request, Response, NextFunction } from 'express';
export interface RateLimitOptions {
windowMs: number;
maxRequests: number;
}
export function createRateLimiter(options: RateLimitOptions) {
const hits = new Map<string, { count: number; resetTime: number }>();
return (req: Request, res: Response, next: NextFunction) => {
const ip = req.ip || '127.0.0.1';
const now = Date.now();
const record = hits.get(ip) || { count: 0, resetTime: now + options.windowMs };
if (now > record.resetTime) {
record.count = 0;
record.resetTime = now + options.windowMs;
}
record.count++;
hits.set(ip, record);
if (record.count > options.maxRequests) {
return res.status(429).json({ error: 'Too Many Requests' });
}
next();
};
}Stop relying on black-box middleware dependencies.
Three commands to clean, native backend blocks.
Real TypeScript files in your workspace.
Blockend generates clear, commented TypeScript files inside your project structure. Every file includes framework adapters, strict types, and usage examples.
- Pragmatic Dependencies: Imports external packages only for security-critical tasks (JWT, Zod).
- Framework Native: Emits typed handlers for Express, Fastify, Hono, & Next.js.
- Fully Editable: Rename options, modify algorithms, or adjust log shapes instantly.
Engineered for code ownership and maintainability.
Production blocks ready for generation.
Showing 8 of 11 blocks · sorted by release date · view full catalog
Scaffold your infrastructure with natural language.
Blockend includes an MCP server. AI assistants (Cursor, Claude, Windsurf) can query the block catalog, inspect signatures, and generate middleware stacks directly into your repository.
- Discover Blocks: Live catalog capability discovery for AI.
- Accurate Generation: Eliminates AI import hallucinations.
- Automated Adapters: Automatic framework detection.
Roadmap & Vision
Core Blocks
Validation, errors, logging, health, shutdown, and response formatting.
Framework Coverage
Refine adapters for Express, Fastify, and Hono.
Security Blocks
JWT, password hashing, CORS, headers, idempotency, and env config.
Starter Kits
SaaS and API starters built from Blockend blocks.
Blockend generates source-first backend code directly into your repository, so you own, inspect, and extend every block.
Frontend figured this out years ago.
shadcn/ui proved that developers don't want another dependency—they want raw source control in their own repository to wrap their custom business logic around. Backend infrastructure deserves the exact same approach. No locked black boxes.
Production-minded from the start.
Blockend is built with real-world backend systems in mind. We use established security and observability tools to continuously improve the reliability and quality of the project.
Security analysis without adding another abstraction layer.
Blockend uses Snyk to help identify vulnerable dependencies and security issues across the project.
Know when something breaks.
Sentry gives the project a way to capture and investigate runtime errors and unexpected failures as Blockend evolves.