{"library":"fastify","type":"library","category":null,"description":"Fastify is a high-performance web framework for Node.js, currently stable at version 5.8.5. It is designed for minimal overhead and an optimized developer experience, offering a robust foundation for building efficient web applications and APIs. The project maintains an active release cadence, frequently delivering patch updates and critical security fixes, as evidenced by recent CVE advisories like CVE-2026-33806 and CVE-2026-3635. Key differentiators include its focus on raw speed, a powerful and extensible plugin architecture, and native support for JSON schema validation and OpenAPI specifications. Inspired by frameworks such as Hapi and Express, Fastify distinguishes itself by meticulously optimizing server resource utilization to handle a high number of requests without compromising security validations or developer convenience, aiming to provide one of the fastest web frameworks available for Node.js today.","language":"javascript","status":"active","version":"5.8.5","tags":["javascript","web","framework","json","schema","open","api","typescript"],"last_verified":"Wed May 27","install":[{"cmd":"npm install fastify","imports":["import Fastify from 'fastify'","const fastify = require('fastify')({ logger: true })","import type { FastifyInstance, FastifyReply, FastifyRequest } from 'fastify'"]},{"cmd":"yarn add fastify","imports":[]},{"cmd":"pnpm add fastify","imports":[]}],"homepage":"https://fastify.dev","github":"https://github.com/fastify/fastify","docs":null,"changelog":null,"pypi":null,"npm":"https://www.npmjs.com/package/fastify","openapi_spec":null,"status_page":null,"smithery":null,"compatibility":{"summary":{"python_range":"18–22","success_rate":0,"avg_install_s":null,"avg_import_s":null,"wheel_type":null},"url":"https://checklist.day/v1/registry/fastify/compatibility"}}