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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 5.1.23 via npm; verified 2026-07-22. Also installable with nix: nix profile install nixpkgs#harper.

Install commandSecurity notes

install

Additional install commands

Portable and language managers

npmverified · 100%
npm install -g harper

local npm package metadata

overview

Package summary

Harper is an open-source Node.js performance platform that unifies database, cache, application, and messaging layers into one in-memory process.

Commands and aliases

  • harper

security posture

No protected-tool coverage found yet

No matching local secret-handling manifest was found for harper. Package metadata is still published here so future coverage has a stable package URL.

Install behavior

  • No npm postinstall script is recorded in package metadata.
  • No Homebrew bottle metadata was recorded.

Recommended review

Before unattended agent use, check whether the tool reads plaintext credentials, writes remote state, publishes artifacts, or shells out to plugins.

executables

Installed executables

CommandKindExposureNote
harpercliglobal executable

freshness

Version and freshness

These signals separate page generation age, package-manager activity, and upstream release comparison. Version lag is warned only when an evidence URL and comparable versions are present.

page generated2026-08-04
manager version5.1.23
manager updated2026-07-22
local dataok
upstreamnot checked
latest detectednot detected

https://github.com/harperfast/harper

install metadata

Package metadata

Package keynpm:harper
Version5.1.23
Package managernpm
Package manager pagehttps://www.npmjs.com/package/harper
Homepagehttps://harper.fast
Repositoryhttps://github.com/harperfast/harper
Upstream docshttps://harper.fast
LicenseApache-2.0
Issue trackerhttps://github.com/harperfast/harper/issues
Last updated2026-07-22T23:32:19.275Z
Published2026-07-22T23:32:19.275Z
Pulseupdated
Bottlenot recorded
npm postinstallnot defined
Servicenone declared

registry facts

Source database details

Source Databasenpm registry
Dist Tags
Latest
5.1.23
Next
5.2.0-beta.4
Version Count75
Maintainers
  • kriszyp
  • harperdb_team
AuthorHarperDB, Inc.
File Count0
Created At2025-02-07T20:38:22.132Z
Latest Published At2026-07-22T23:32:19.275Z
Modified At2026-07-22T23:32:19.275Z

source database matches

Other package-manager records

Matches are pulled from external package-manager indexes and kept separate from local Automic Vault package links.

Nix95%

harper

nix profile install nixpkgs#harper
  • normalized package name match
  • Matched by: Harper
nixpkgs package indexes · api.github.com · nixpkgs package indexes: pkgs/by-name/ha/harper/package.nix from https://api.github.com/repos/NixOS/nixpkgs/git/trees/master?recursive=1
apk95%

harper 2.1.0-r0

English grammar checker

https://github.com/Automattic/harper

sudo apk add harper
  • License: GPL-3.0-or-later
  • Architecture: x86_64
  • Source Package: harper
  • 1 dependencies
  • 1 provides
  • normalized package name match
  • Matched by: Harper
Alpine Linux edge package indexes · dl-cdn.alpinelinux.org · Alpine Linux edge package indexes: harper from https://dl-cdn.alpinelinux.org/alpine/edge/testing/x86_64/APKINDEX.tar.gz
pacman95%

harper 2.7.0-1

The Grammar Checker for Developers

https://github.com/Automattic/harper

sudo pacman -S harper
  • License: Apache-2.0
  • Architecture: x86_64
  • 2 dependencies
  • normalized package name match
  • Matched by: Harper
Arch Linux sync databases · geo.mirror.pkgbuild.com · Arch Linux sync databases: harper from https://geo.mirror.pkgbuild.com/extra/os/x86_64/extra.db.tar.gz
Scoop95%

main/harper

scoop install main/harper
  • normalized package name match
  • Matched by: Harper
Scoop official bucket manifest trees · api.github.com · Scoop official bucket manifest trees: bucket/harper.json from https://api.github.com/repos/ScoopInstaller/Main/git/trees/master?recursive=1
winget95%

Automattic.harper-ls

winget install --id Automattic.harper-ls -e
  • normalized package name match
  • Matched by: Harper
Windows Package Manager source index · cdn.winget.microsoft.com · Windows Package Manager source index: Automattic.harper-ls from https://cdn.winget.microsoft.com/cache/source.msix

package graph

Links come from deterministic package relationships, av.db category and tag curation, ecosystem matches, and package hub membership.

Same workflow

  • harperdbExecutable or command metadata overlaps with this package. Shared terms: cache, cli, data, database, databases.
  • prismaBoth packages touch the same language runtime or ecosystem. Shared terms: cli, data, database, databases, is.
  • drizzle-kitLocal metadata places this package in an adjacent workflow. Shared terms: cli, data, database, databases, is.
  • harperSame normalized package name exists in another local package ecosystem.

source trail

Generated from repository data

This page is generated by av-web from the private package SQLite artifact built by scripts/generate-pkg-sqlite.py.

Used sources

  • cross-ecosystem install command graph
  • external package-manager database matches
  • package relationship graph
  • package version freshness
  • package-page enrichment
  • pkg.so package database
  • pkgdb category and tag curation