# Install harper with npm Harper is an open-source Node.js performance platform that unifies database, cache, application, and messaging layers into one in-memory process. Version 5.1.6 via npm; verified 2026-06-19. ## Install ```sh sudo av install npm:harper ``` Additional install commands: ### Portable and language managers - npm (100%): ```sh npm install -g harper ``` Evidence: local npm package metadata ## Package facts - **Package key:** npm:harper - **Package manager:** npm - **Package manager page:** - **Version:** 5.1.6 - **Source summary:** Harper is an open-source Node.js performance platform that unifies database, cache, application, and messaging layers into one in-memory process. - **Homepage:** - **Repository:** - **Upstream docs:** - **License:** Apache-2.0 - **Source archive:** - **Issue tracker:** - **Published:** 2026-06-19T20:44:03.989Z - **Last updated:** 2026-06-19T20:44:03.989Z - **Generated:** 2026-07-08T07:18:31+00:00 ## Executables - harper (cli) - harper (alias) ## Dependencies - @aws-sdk/client-s3 - @aws-sdk/lib-storage - @endo/static-module-record - @fastify/autoload - @fastify/compress - @fastify/cors - @fastify/static - @harperfast/extended-iterable - @harperfast/rocksdb-js - @turf/area - @turf/boolean-contains - @turf/boolean-disjoint - @turf/boolean-equal - @turf/circle - @turf/difference - @turf/distance - @turf/helpers - @turf/length - alasql - amaro - argon2 - asn1js - busboy - cbor-x - chalk - chokidar - cli-progress - clone - dotenv - easy-ocsp - fast-glob - fastify - fastify-plugin - fs-extra - graphql - graphql-http - gunzip-maybe - human-readable-ids - inquirer - is-number - joi - json-bigint-fixes - jsonata - jsonwebtoken - lmdb - lodash - mathjs - micromatch - minimist - moment - mqtt-packet - msgpackr - needle - node-forge - node-stream-zip - normalize-path - ora - ordered-binary - papaparse - passport - passport-http - passport-local - pino - pkijs - prompt - properties-reader - recursive-iterator - semver - send - ses - stream-chain - stream-json - structon - systeminformation - tar-fs - ulidx - uuid - validate.js - ws - yaml ## Build dependencies - @harperdb/code-guidelines - @harperfast/integration-testing - @modelcontextprotocol/sdk - @types/busboy - @types/fs-extra - @types/gunzip-maybe - @types/jsonwebtoken - @types/lodash - @types/micromatch - @types/mocha - @types/sinon - @types/tar-fs - @typescript-eslint/parser - axios - chai - chai-as-promised - chai-integer - eventsource - globals - intercept-stdout - mkcert - mocha - mqtt - oxlint - prettier - rewire - sinon - sinon-chai - supertest - tsx - typescript - typescript-eslint - undici - why-is-node-still-running ## Install behavior - Post-install hook: not defined - Bottle: not available ## Freshness - Page generated: 2026-07-08 - Package-manager version: 5.1.6 - Package-manager updated: 2026-06-19 - Local data: ok - Upstream repository: https://github.com/harperfast/harper - info: No cached GitHub release or tag data was available. ## Security Notes No matching local secret-handling manifest was found for harper. Nucleus package metadata is still published here so future coverage has a stable package URL. ## Source Database Details - **Source Database:** npm registry - **Dist Tags:** Latest: 5.1.6, Next: 5.1.0-beta.3 - **Version Count:** 47 - **Maintainers:** kriszyp, harperdb_team - **Author:** HarperDB, Inc. - **Publisher:** harperdb_team - **Engines:** Node: ^22.18.0 || >=24.0.0 - **Peer Dependencies:** @aws-sdk/client-bedrock-runtime - **Optional Dependencies:** bufferutil, segfault-handler, utf-8-validate - **Integrity:** sha512-T1VJiHuib3bR+36MoN/WY0iwGFqC0MkOtizd4MFYf1lqpWmzQnZQSEqVnafLCm7Lw9BoFWYjhbV8LTF+Az9l7A== - **Shasum:** b00de540e6bfa6ae8d2e323bb0ab53a4116d9829 - **Unpacked Size:** 103,197,491 - **File Count:** 0 - **Created At:** 2025-02-07T20:38:22.132Z - **Latest Published At:** 2026-06-19T20:44:03.989Z - **Modified At:** 2026-06-19T20:44:04.102Z ## Other Package-Manager Records - Nix - harper: normalized package name match | nixpkgs package indexes: pkgs/by-name/ha/harper/package.nix from https://api.github.com/repos/NixOS/nixpkgs/git/trees/master?recursive=1 - apk - harper - 2.1.0-r0: normalized package name match | Alpine Linux edge package indexes: harper from https://dl-cdn.alpinelinux.org/alpine/edge/testing/x86_64/APKINDEX.tar.gz | English grammar checker | https://github.com/Automattic/harper - pacman - harper - 2.4.0-1: normalized package name match | Arch Linux sync databases: harper from https://geo.mirror.pkgbuild.com/extra/os/x86_64/extra.db.tar.gz | The Grammar Checker for Developers | https://github.com/Automattic/harper - Scoop - main/harper: normalized package name match | Scoop official bucket manifest trees: bucket/harper.json from https://api.github.com/repos/ScoopInstaller/Main/git/trees/master?recursive=1 - winget - Automattic.harper-ls: normalized package name match | Windows Package Manager source index: Automattic.harper-ls from https://cdn.winget.microsoft.com/cache/source.msix ## Related links - [Cloud CLI packages](https://www.automicvault.com/pkg/cloud-clis/) - Matched curated package taxonomy and local package facts. - [harperdb](https://www.automicvault.com/pkg/npm/harperdb/) - Executable or command metadata overlaps with this package. Shared terms: alasql, area, argon2, asn1js, autoload. - [turborepo-remote-cache](https://www.automicvault.com/pkg/npm/turborepo-remote-cache/) - Local metadata places this package in an adjacent workflow. Shared terms: aws, aws-sdk, cache, client, client-s3. - [decocms](https://www.automicvault.com/pkg/npm/decocms/) - Both packages touch the same language runtime or ecosystem. Shared terms: aws, aws-sdk, client, client-s3, lib. - [harper](https://www.automicvault.com/pkg/brew/harper/) - Same normalized package name exists in another local package ecosystem. ## Sources - Nucleus package database - package-page enrichment - package version freshness - package relationship graph - external package-manager database matches - cross-ecosystem install command graph