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ajv-keywords

npmv5.1.0TypeScript

Additional JSON-Schema keywords for Ajv JSON validator

Not recommended for new projects

No — ajv-keywords should not be adopted for new projects. Last published 1753 days ago.

  • AAdoption: grade A, Excellent.

    61.4M downloads per week and 1 known dependents.

  • FMaintenance: grade F, Failing.

    Last published 1753 days ago.

  • AWeight: grade A, Excellent.

    Pulls in 1 transitive package, about 141 KB installed.

  • BSupply chain: grade B, Good.

    This package has a single maintainer (bus factor of 1).

  • ALicense: grade A, Excellent.

    MIT — permissive, with no copyleft found in the dependency tree.

Grades are computed deterministically from registry metadata collected by PackageGraph — downloads, dependents, publish dates, the resolved dependency tree, maintainer count, and declared licenses. No third-party scores are used.

Install cost

What you actually take on by adding ajv-keywords to a project.

1
Direct dependencies

Runtime packages this one declares itself.

1
Total installed

Distinct packages in the full runtime tree, deduplicated the way a package manager would.

141 KB
Install size

Unpacked size of this package plus its entire runtime tree.

1
Tree depth

Longest resolved dependency chain below this package.

Licenses in the dependency tree

MIT

Every license you inherit by installing ajv-keywords, not just its own. Check this before a legal review, not after.

Compatibility

Node.js
No constraint declared
Module format
CommonJS only
TypeScript
Types included
Install scripts
None

Quick start

A usage example from the ajv-keywords README.

javascriptFull README ↗
const Ajv = require("ajv")
const ajv = new Ajv()
require("ajv-keywords")(ajv)

ajv.validate({instanceof: "RegExp"}, /.*/) // true
ajv.validate({instanceof: "RegExp"}, ".*") // false

ajv-keywords vs the alternatives

Packages solving a similar problem in the npm ecosystem, compared on the signals that drive an adoption decision.

PackageWeekly downloadsDependentsLicenseLast release
ajv-keywordsthis page61.4M1MIT4 years ago
@fastify/ajv-compiler02MIT1 day ago
har-validatordeprecated01MIT1 day ago

Dependencies

Declared by ajv-keywords v5.1.0. Runtime dependencies are installed with the package; dev dependencies are not.

Runtime (1)

fast-deep-equal ^3.1.3

Peer (1)

ajv ^8.8.2

Dev (20)

@ajv-validator/config ^0.2.3@types/chai ^4.2.14@types/jest ^26.0.14@types/node ^16.4.10@types/uuid ^8.3.0@typescript-eslint/eslint-plugin ^4.4.1@typescript-eslint/parser ^4.4.1ajv ^8.8.2ajv-formats ^2.0.0chai ^4.2.0eslint ^7.2.0eslint-config-prettier ^7.0.0husky ^7.0.1jest ^26.5.3json-schema-test ^2.0.0lint-staged ^11.1.1prettier ^2.1.2ts-jest ^26.4.1typescript ^4.2.0uuid ^8.1.0

Used by

Popular packages that depend on ajv-keywords.

schema-utilsnpm

webpack Validation Utils

↓ 0/wk◈ 2 dependents⚖ MITTS

Relationship graph

Dependencies (left) and dependents (right) of ajv-keywords.

fast-deep-equalschema-utilsajv-keywords
ajv-keywords dependencies dependents

Frequently installed together

eslintnpm

An AST-based pattern checker for JavaScript.

↓ 138.4M/wk◈ 279 dependents⚖ MITTS
prettiernpm

Prettier is an opinionated code formatter

↓ 114.2M/wk◈ 159 dependents⚖ MITTS
webpacknpm

Packs ECMAScript/CommonJs/AMD modules for the browser. Allows you to split your codebase into multiple bundles, which can be loaded on demand. Supports loaders to preprocess files, i.e. json, jsx, es7, css, less, ... and your custom stuff.

↓ 49.8M/wk◈ 29 dependents⚖ MITTS
jestnpm

Delightful JavaScript Testing.

↓ 42.1M/wk◈ 70 dependents⚖ MITTS
@types/json-schemanpm

TypeScript definitions for json-schema

↓ 0/wk◈ 4 dependents⚖ MITTS
@types/nodenpm

TypeScript definitions for node

↓ 0/wk◈ 327 dependents⚖ MITTS
babel-jestnpm

Jest plugin to use babel for transformation.

↓ 0/wk◈ 16 dependents⚖ MITTS

Release history

No releases in the last two years, typically about 18 days apart.

Recent versions of ajv-keywords
VersionPublishedSizeLicense
5.1.0latest4 years ago129 KBMIT
5.0.05 years ago128 KBMIT
4.0.15 years ago128 KBMIT
5.0.0-beta.15 years ago128 KBMIT
5.0.0-beta.05 years ago128 KBMIT
4.0.05 years ago128 KBMIT
4.0.0-rc.05 years ago128 KBMIT
4.0.0-beta.35 years ago126 KBMIT
4.0.0-beta.25 years ago124 KBMIT
4.0.0-beta.15 years ago123 KBMIT
4.0.0-beta.05 years ago122 KBMIT
3.5.26 years ago71 KBMIT
3.5.16 years ago71 KBMIT
3.5.06 years ago71 KBMIT
3.4.17 years ago70 KBMIT

Overview

ajv-keywords is an npm package that additional JSON-Schema keywords for Ajv JSON validator. It is extremely widely used, with about 61.4M downloads per week and 1 known dependents in the graph. The latest version is 5.1.0, released under the MIT license.

Who should use it

Teams working in the npm ecosystem who need additional JSON-Schema keywords for Ajv JSON validator and value a battle-tested, widely-adopted solution.

When not to use it

Consider an alternative if you need to minimize your dependency tree, or if a more actively-maintained option better fits your npm stack.

Pros

  • Large, well-established user base (61.4M weekly downloads).
  • Ships TypeScript type definitions.
  • Clear open-source license (MIT).

Cons

  • Large dependency tree (22 direct dependencies) increases install size and audit surface.

Auto-generated from collected registry metadata. No external claims are inferred.

Maintainers

esp

Keywords

JSON-Schemaajvkeywords

Frequently asked questions

Should I use ajv-keywords?

No — ajv-keywords should not be adopted for new projects. Last published 1753 days ago.

How do I install ajv-keywords?

Run `npm install ajv-keywords` to add ajv-keywords to your npm project.

How many dependencies does ajv-keywords have?

ajv-keywords declares 22 direct dependencies and pulls in 1 packages in total once its runtime tree is resolved totalling about 141 KB on disk.

What license is ajv-keywords released under?

ajv-keywords is distributed under the MIT license.

How popular is ajv-keywords?

ajv-keywords has approximately 61,385,147 downloads per week and 1 known dependent packages.

Is ajv-keywords still maintained?

The most recent release of ajv-keywords (v5.1.0) was published 4 years ago.

Does ajv-keywords run install scripts?

No. ajv-keywords does not define preinstall, install, or postinstall scripts, so installing it does not execute publisher-supplied code.