npm95Exceptionalhealth index
TypeScript · MDX★ 9,010↓ 69.5M/moSep 17, 2026
npm93Exceptionalhealth index

colinhacks/zodTypeScript-first schema validation with static type inference
TypeScript★ 44K↓ 1B/moSep 16, 2026
crates.io91Excellenthealth index

sebastienrousseau/noyalibA YAML 1.2 parser and serialiser for Rust: zero unsafe, full serde integration, lossless CST editing, JSON Schema validation, 406/406 on the official test suite. Core of a six-crate ecosystem with a CLI, LSP, MCP server, WASM bindings, and a serde_yaml drop-in.
Rust★ 11↓ 263K/moOct 20, 2026
npm90Excellenthealth index

react-hook-form/resolvers📋 Validation resolvers: Yup, Zod, Superstruct, Joi, Vest, Class Validator, io-ts, Nope, computed-types, typanion, Ajv, TypeBox, ArkType, Valibot, effect-ts, VineJS and Standard Schema
TypeScript★ 2,260↓ 181M/moSep 17, 2026
npm89Excellenthealth index

RobinTail/express-zod-apiA Typescript framework to help you get an API server up and running with I/O schema validation and custom middlewares in minutes.
TypeScript★ 835↓ 123.5K/moSep 15, 2026
PyPI86Excellenthealth index

memgraph/gqlalchemyGQLAlchemy is a library developed with the purpose of assisting in writing and running queries on Memgraph. GQLAlchemy supports high-level connection to Memgraph as well as modular query builder.
Python★ 299Sep 19, 2026
npm · Go84Excellenthealth index

nexoral/AxioDBThe embedded database for Node.js. Replaces SQLite, LowDB, NeDB & raw JSON files with MongoDB-style queries, ACID transactions, and zero native dependencies.
TypeScript · JavaScript★ 31↓ 5,513/moSep 11, 2026
npm84Excellenthealth index

resq-software/npmRegistry workspace for ResQ Systems npm packages (@resq-systems scope) including our UI component library, flight instruments, data structures, and utilities for the autonomous disaster response platform.
TypeScript★ 0↓ 7,047/moSep 18, 2026
PyPI84Excellenthealth index

sorenwacker/metaseedCreate, edit, and validate scientific metadata against a standard (MIAPPE, ISA, Darwin Core, DiSSCo, ENA, PRIDE, MetaboLights, FAIRDOM-SEEK) from a YAML profile — CLI, web interface, Python API, and MCP server.
Python★ 2↓ 2,247/moOct 1, 2026
npm80Excellenthealth index
TypeScript★ 5↓ 11K/moSep 15, 2026
npm · PyPI80Excellenthealth index

delimit-ai/delimit-mcp-serverThe merge gate for AI-written code, with signed, replayable attestation. Works across Claude Code, Codex, Cursor, and Gemini CLI.
Python · JavaScript★ 21↓ 4,510/moSep 16, 2026
npm80Excellenthealth index

tada5hi/validupTypeScript validation library, compose validators and nested containers onto object paths, with integrations for Zod, Standard Schema, validator.js, and Vue 3.
TypeScript★ 5↓ 7,077/moSep 18, 2026
Go · npm78Goodhealth index

Oudwins/zogGo with Zod inspired simple schema validation
Go★ 1,212Aug 28, 2026

rstudio/pointblankData quality assessment and metadata reporting for data frames and database tables
R★ 1,047Sep 20, 2026
TypeScript · JavaScript★ 1↓ 2,443/moOct 21, 2026
npm · PyPI · Maven77Goodhealth index

SmooAI/configType-safe multi-language configuration management — schema validation, three-tier config (public, secrets, feature flags), and runtime clients for TypeScript, Python, Rust, and Go.
TypeScript · Rust · Go★ 0↓ 7,711/moSep 19, 2026
RubyGems73Goodhealth index
Ruby★ 493Sep 9, 2026
PyPI · npm65Goodhealth index

PDBeurope/mmcif-validatorReal-time VSCode extension and standalone Python script for validating mmCIF/CIF files against the PDBx/mmCIF dictionary or any CIF dictionary.
Python · TypeScript★ 11↓ 1,744/moSep 8, 2026
Packagist · npm · crates.io +465Goodhealth index
C · TypeScript · C#★ 22↓ 311/moSep 9, 2026
TypeScript★ 5↓ 8,792/moSep 18, 2026
PyPI63Moderatehealth index

elenakulgavaya/suretyA Python framework for contract testing in CI/CD pipelines. Validates communication boundaries between services without requiring a shared environment.
Python★ 1↓ 4,751/moSep 18, 2026
crates.io · Go60Moderatehealth index

dweve-ai/hedlToken-efficient data serialization for LLM/AI. 50% fewer tokens than JSON, 93% better value/token. Rust, schema validation, LSP.
Rust★ 77↓ 78/moSep 19, 2026
npm56Moderatehealth index
TypeScript · JavaScript★ 7↓ 10.7K/moSep 9, 2026
npm56Moderatehealth index
TypeScript★ 2↓ 3,333/moSep 11, 2026
TypeScript★ 2↓ 18.4K/moOct 4, 2026
TypeScript★ 0↓ 34.6K/moSep 12, 2026
Go · npm · PyPI39Weakhealth index

stricttools/strictspecDefine a schema once in TOML, and generate the full toolchain in your language: validation, versioning, migrations, etc. -- First-class support for Go, Python, and TypeScript
Go · Python · TypeScript★ 1Sep 19, 2026
RubyGems35Weakhealth index
Ruby★ 3Sep 14, 2026