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Agents tracked: 440 Downloads (7d): 202M down 19.5% GitHub stars: 10.4M Releases (7d): 607 Agent status: all upSince last limit reset: Claude 28d · Codex 0d Updated Oct 21, 2026

@cfworker/json-schema

JSON Schema validator that runs on Cloudflare Workers and other edge runtimes.

Forms, validation and schemas npm MIT

Used in agent projects
4
0.1% of 4,818 JS/TS repos built with AI coding agents; 27 counting our dependency samples
Gid Score
48 /100
#1742 of 3,794 tools, #41 in forms, validation and schemas · ranking
Rank in forms, validation and schemas
#40 of 61
by use in those projects
Downloads
6.2M
npm, last 7 days, @cfworker/json-schema
GitHub stars
704
65 forks · last push Apr 10, 2026

How @cfworker/json-schema is used

@cfworker/json-schema is a dependency in 4 of the 6,208 public GitHub projects set up for AI coding agents that we scanned, too few to describe it from them alone. Our scan also samples projects by dependency (Solana 2,661, Ethereum and EVM 1,496, 3D and games 2,818, agent frameworks and SDKs 10,983); counting those, it appears in 27 projects, and what it is used with below comes from all of them. The most used alternative in our scan is Ajv (151 projects). Projects that use it most often also use Zod (96.3%), Lucide React (81.5%), Vercel Analytics (77.8%).

@cfworker/json-schema popularity over time

Top tools by Gid Score

@cfworker/json-schema: downloads per weeknpm, @cfworker/json-schema 9,791,020
@cfworker/json-schema: GitHub starscfworker/cfworker 704

Gid Score 48: downloads 81, use in agent projects 32, GitHub stars 6, downloads trend 67 (each 0-100). How it is calculated.

Often used with @cfworker/json-schema

Zod96.3% of @cfworker/json-schema projects · 3.8× more than average
Lucide React81.5% of @cfworker/json-schema projects · 4.1× more than average
Vercel Analytics77.8% of @cfworker/json-schema projects · 21.6× more than average
Next.js77.8% of @cfworker/json-schema projects · 4.3× more than average
Google Generative AI74.1% of @cfworker/json-schema projects · 27.2× more than average
Model Context Protocol SDK (JavaScript)66.7% of @cfworker/json-schema projects · 7.0× more than average
tsx66.7% of @cfworker/json-schema projects · 4.4× more than average
node-fetch59.3% of @cfworker/json-schema projects · 35.4× more than average

From all 27 projects in our scan that use @cfworker/json-schema, including the dependency samples.

Install

Packagenpm install @cfworker/json-schema
Main stacksNext.js (21), TypeScript / JavaScript (6)
Example projectslobehub/lobehub, vual/lobe-chat-pro, WolframResearch/vscode-wolfram, isaccanedo/lobe-chat, Kirkice/renderdoc-for-vscode

Alternatives to @cfworker/json-schema

All forms, validation and schemas

Tools that do the same job, so a project picks one or the other. Add-ons and libraries used alongside @cfworker/json-schema are not listed here; they are in "Often used with".

Tool Gid Score Used in agent projectsDownloads / wk GitHub starsLicense
Ajv npm
Fast JSON Schema validator for runtime schema validation and serialization.
75 151 (3.1%) 233M 14.9K MIT

More in Forms, validation and schemas: Zod React Hook Form Pydantic React Hook Form Resolvers jsonschema ajv-formats Protocol Buffers zod-to-json-schema

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